Lab Seafloor Spreading Rates Answers

Basemaps (seafloor ages, depths, sediments, and spreading (seafloor crustal ages. While working in the offshore Oil and Gas Industry in the 1990s for Oceaneering International, I noticed that the majority of the work being performed by large workclass ROV (WCROV) systems was simply taking pictures of work sites. Plate Tectonics & Sea Floor Geography Lab In this lab, you will explore how the movements of the Earth's tectonic plates relate to earthquakes, volcanoes, and the major geographic features of the ocean floor. Plate Tectonics Includes: Reproducible Student Pages ASSESSMENT Chapter Tests Chapter Review Teacher Guide and Answers 511-i-vi-MSS05-000000_CR 19. Part 2: Tectonic Plate Spreading Rates We can calculate an average rate of seafloor spreading by measuring the distance between MOR's, then divide the distance by the and age of seafloor rocks collected there (e. Ad The Simple Dollar. The question below from Ask-a-Geologist is just one of many like it: Q: Dear Geologist,. About 5 centimeters (2 inches) per year. Welcome aboard! Eleven have declared majors in Geology, Earth Science, and Earth Science Education. This creates new ocean crust. Activities include dating the initiation of sea-floor spreading, determining the sense of offset on transform faults. GENERAL SCIENCE 1110L LAB LAB 9: Sea Floor Spreading. The Juan de Fuca plate is separated from the Pacific plate by en-echelon, northeast-trending spreading ridges (Juan de Fuca and Explorer ridges) and transform faults. Scientists have measured the ages of these rock samples. The Bear Seamount (left), a guyot in the northern Atlantic Ocean. 1) shows is chrons ( lines ofequal age) of te basaltic crust beneath the sediments that have accumulated on the seafloor. In this activity, you will observe the pattern and learn to calculate the rate of sea floor spreading. If so, then the Rising Generation is full of people a lot smarter than I was at that age. Glencoe Science Chapter Resources Plate Tectonics Includes: Reproducible Student Pages ASSESSMENT ChapterTests Chapter Review HANDS-ON ACTIVITIES LabWorksheets for each Student Edition Activity Laboratory Activities Foldables–Reading and Study Skills activity sheet MEETING INDIVIDUAL NEEDS Directed Reading for Content Mastery Directed Reading for Content Mastery. Activities include dating the initiation of sea-floor spreading, determining the sense of offset on transform faults. " Page 93- "The Theory of Continental Drift" notes (see ppt. Earth Science Lessons. Scientists use evidence of geologic processes to describe Earth's history and predict its future. Explain how flowing water causes erosion and deposition. Seafloor Structure handout (attached) T e a c h e r P r e p a r a ti o n : Create Playlist 1, a 40 minute p laylist in L egends of Learning with the following games found in the Seafloor Spreading and Subduction learning objective: S e a f l o o r E xp l o re r 9 S e a f l o o r A d ve n t u re. (Hint: To determine the rate of spreading in centimeters per year for each ocean basin, first convert the distance from kilometers to centimeters and then divide this distance by the time, 2 million years. Lab 4C- Hydrogenous Sediments. The mineral olivine, for example, is relatively unstable and vulnerable to chemical attack, so olivine-rich rocks break down much. Algebra - John today at 12:38am ; Mathematics - Anonymous yesterday at 11:. Thus the sea floor spreads out to either side as show in Figure 1. -Sea-floor spreading is what happens at the mid-oceanic ridge where a divergent boundary is causing two plates to move away from one another resulting in spreading of the sea floor. Lab worksheets for each student edition activity laboratory sea floor spreading project answer key lab 4 sea floor spreading lab seafloor spreading. Some of the worksheets for this concept are Lab work plate tectonics, Continental drift sea floor spreading and plate tectonics, Magnetic reversals activity, Plate tectonics, Glencoe middle school science, , Problem and solution work 1st grade, Plate tectonics evidence for continental drift. Seafloor Spreading and Plate Tectonics 6 PS-2979 Station 3 - Comparing the magnetism of magnetite and basalt Set up 24. Where can you find the data about each peak that you need for this lab? 2. What scientists found was that new seafloor has continually been forming over millions of years at the mid-ocean ridges. 4 Sea-Floor Spreading Discover What Is the Effect of a Change in Density? Try This Reversing Poles Skills Lab Modeling Sea-Floor Spreading 5 The Theory of Plate Tectonics Discover How Well Do the Continents Fit Together? Skills Activity Predicting Math Skills Calculating a Rate Active Art Continental Drift. In this seafloor worksheet, students review the terms associated with formations found on the seafloor including sea mounts and seafloor spreading. " Page 93- "The Theory of Continental Drift" notes (see ppt. 9 km 35 mm/40mm = 34 mm/x - 80 km How may kilometers has the left side of the Pacific basin spread in 2 million years? CALCULATING 35 mmx = 1360 mm km. Note on Exercsie 2. Go Further The fastest spreading rate is the northern part of the Pacific plate, which is spreading at approximately 15. 8×1026 metres or 2. Professor Oak must keep the server in his lab. Her research focuses on biodiversity conservation, ecosystem services, and climate. 0 0 X/X/X 0 0 0 0 0 0 Gulf of Mexico - Deepwater Horizon Oil Spill News. Answers To Enders Game, Seafloor Spreading Rates Lab Answers, chapter 16 section 1 guided reading hitler lightning war, chapter 12 guided reading, ch 33 section 4 the cold war divides world answers guided reading, guided reading activity 26 2 history, Regal Kitchen Pro Breadmaker K6773 Manual, Oster Bread Machine Model 5838 Owners. Whats people lookup in this blog: Seafloor Spreading Rates Worksheet Answers; Lab Seafloor Spreading Rates Worksheet Answers. The modern seafloor rocks of this region are forming along a divergent plate boundary called the Juan de Fuca Ridge. From sea floor spreading lab worksheets to sea floor spreading ppt videos, quickly find teacher-reviewed educational resources. of sea-floor spreading, they should not attempt to answer these questiong. The mineral olivine, for example, is relatively unstable and vulnerable to chemical attack, so olivine-rich rocks break down much. Birdley "Continental Drift. These plates "ride" on the hot plastic upper mantle called the asthenosphere. 15, 2008) — A global study led by Professor Robert Diaz of the Virginia Institute of Marine Science, College of William and Mary, shows that the number of “dead zones”—areas of seafloor with too little oxygen for most marine life—has increased by a third between 1995 and 2007. Theory of Plate Tectonics. Let's also assume for this problem that seafloor spreading is symmetric, i. 8 The Origin of Magma Laboratory Three Mineral Properties, Uses, and Identification. C) the seafloor stretching thinner and thinner as continents pull away from each other. 08/26/19 Crack in Pacific Seafloor Caused Volcanic Chain to Go Wet Lab Set for Sept. Whats people lookup in this blog: Seafloor Spreading Rates Lab Answer Key. Prop 84 Tax Exempt Department Name Item Number Potential Private Use ID Bond Act Bond Program Grantee Project Ref # Project Title Project Description Ownership. They will ihen have to develop an aspect of the theory of sea-floor spreading in order `to explain the data that they will study. 7th Grade Life Science. The rate of sea floor spreading has been estimated from the distance from the spreading ridge to an identified magnetic reversal for which the age is known. Seafloor Spreading Rates. Tarbuck and Fred Lutgens. AN OVERVIEW OF SEA-FLOOR SPREADING AND PLATE TECTONICS. NB this small graph contains no data – it is a statement of expectation. The discovery of such magnetic stripes provided powerful evidence that sea-floor spreading occurs. At all ages, Mexican Americans have lower rates of health insurance and retirement coverage than do other minority groups, such as African Americans or other Hispanic groups. If you have questions about completing your report, please reference the Completed Lab Report Example. It is an underwater mountain range that forms when magma pushes up on the crust at a divergent boundary. Showing top 8 worksheets in the category - Seafloor Spreading. Seafloor spreading is a process that occurs at mid-ocean ridges. question 3, page 55 Most sediment in the ocean is terrigenous sediment; it comes from land, and is deposited in shallow water. Plate Tectonics and the Hawaiian Hot Spot. SO 2 emissions can cause acid rain and air pollution downwind of a volcano—at Kīlauea volcano in Hawaii, high concentrations of sulfur dioxide produce volcanic smog (VOG) causing persistent health problems for downwind populations. On November 9 2015 the virology lab in Wuhan announced a new virus identified as derivative of SARS-CoV -( which had been named in 2003 after a 2002 respiratory contagion) Around December 8 2019 a man in China displaying symptoms related to coronavirus infection was identified as an early case of a novel coronavirus, later to be named Covid-19. The rate of plate movement in this area is about 25 millimeters (1 inch) per year, or about 25 km (16 miles) every million years. Lectures by Walter Lewin. Procedures:. students will use actual data from historic oceanographic cruises to examine sea floor spreading. Seafloor-spreading rates are much more rapid in the Pacific Ocean than in the Atlantic and Indian oceans. Living Things Are Organized. List of Amc - Free ebook download as Word Doc (. HELLO regents Earth Science class! It's VICI! Here are some answers to the lab I found!. This rate of drift is consistent with the estimated 4. See more ideas about Plate tectonics, Earth science and Earth and space science. Lab Investigation Modeling Sea-Floor Spreading Reviewing Content Mid-ocean ridges are long, underwater mountain chains that rise up from the ocean floors. The two sites on the Gorda Ridge (one in Escanaba Trough and one further north known as the Sea Cliff hydrothermal field) are of interest for several reasons:. 8 Ma, the seafloor has been completely replaced about 19 times. Users are obligated to adhere to the terms and conditions on any linked websites. 8 % per year through 2050 and between 1. In the 1960s, a series of discoveries, the most important of which was seafloor spreading, showed that the Earth's lithosphere, which includes the crust and rigid uppermost portion of the upper mantle, is separated into a number of tectonic plates that move across the plastically deforming, solid, upper mantle, which is called the asthenosphere. question 1, page 55 Younger (it is closer to the mid-ocean ridge) question 2, page 55 Because the ocean spreads in opposite direction at essentially the same rate. 15, 2008) — A global study led by Professor Robert Diaz of the Virginia Institute of Marine Science, College of William and Mary, shows that the number of “dead zones”—areas of seafloor with too little oxygen for most marine life—has increased by a third between 1995 and 2007. Magma (hot molten underground rock material) rises up into the gap from below and cools to form new seafloor rock. However, the three components of basic plate tectonic concepts -matching coastlines, matching continental shelves, and using ocean fracture zones to control rotation of continents during sea-floor spreading-are reinforced and help lead to a deeper understanding of the fact that the edge of a continent is the continental. Plate Tectonics 39 Chapter Test Plate Tectonics I. Sea Floor Spreading Project Answer Key Lab 4 -> Source : www. In marine geology, a guyot (pronounced / ɡ iː ˈ j oʊ /), also known as a tablemountguyot (pronounced / ɡ iː ˈ j. He is interested in and collecting unsolved problems in applied geophysics. Seafloor Spreading Rates Lab Answers Author: symsys03. Matt Hall has a 2018 webinar and a blog reviewing the history of open questions in geoscience. Materials Needed: 2 different colored markers. Problem-Solving Lab 13-1, p 347 MiniLab 13-1: Matching Restriction Enzymes to Cleavage Sites, p 351 Inside Story: Gel Electrophoresis, p 354 Problem Science - Qihua Primary School science kit, aquarium or terrarium, a biography of an inventor 7) Help to reinforce your. 5 billion light-years and its diameter about 28. Lab Investigation Modeling Sea-Floor Spreading Reviewing Content Mid-ocean ridges are long, underwater mountain chains that rise up from the ocean floors. The distribution of earthquakes in the area of the India-Eurasia plate boundary is shown in Figure 11. 10 Ways Parents and Schools Can Prevent School Shootings Now (Op-Ed) :: While politicians argue endlessly over gun control, here are 10 practical ways the rest of us can work to prevent school shootings. On November 9 2015 the virology lab in Wuhan announced a new virus identified as derivative of SARS-CoV -( which had been named in 2003 after a 2002 respiratory contagion) Around December 8 2019 a man in China displaying symptoms related to coronavirus infection was identified as an early case of a novel coronavirus, later to be named Covid-19. ANALYZING DATA Analyzing Data How many kilometers have the left side of the North Atlantic basin spread in 2 million years? - 38. Glencoe Science Chapter Resources Plate Tectonics Includes: Reproducible Student Pages ASSESSMENT ChapterTests Chapter Review HANDS-ON ACTIVITIES LabWorksheets for each Student Edition Activity Laboratory Activities Foldables–Reading and Study Skills activity sheet MEETING INDIVIDUAL NEEDS Directed Reading for Content Mastery Directed Reading for Content Mastery. Nuclear Power - The Politics Of Power And Control. The mineral olivine, for example, is relatively unstable and vulnerable to chemical attack, so olivine-rich rocks break down much. 23 29 -> Source : studylib. Whereas most scholars have tended to regard Monteverdi’s opera L’Orfeo as the beginning of a tradition, Mr. Katz's results from the Australian-Antarctic Ridge, an intermediate-rate spreading center, don't confirm or contradict this trend; the dominant 100,000-year signal in his team's data falls in line with observations of hill spacing at other intermediate-rate spreading centers. • Realize the importance of the seafloor spreading process relative to the Continental Drift Theory. Basemaps (seafloor ages, depths, sediments, and spreading (seafloor crustal ages. Spreading rates determine if the ridge is fast, intermediate, or slow. Activity 2. Note on Exercsie 2. Start a new experiment on the data collection system. The diagram on the next page represents a section of the ocean floor in the North Atlantic. Seafloor Spreading Activity. Course Overview. Showing top 8 worksheets in the category - Seafloor Diagram. > Nitrogen pentoxide (N2O5) is an unstable gas that changes to nitrogen dioxide (NO2) and oxygen (O2) at room temperature. Ask questions and get free help from tutors. about the rate of seafloor spreading? 7. Weather forecasts are made by collecting as. Lab Investigation Modeling Sea-Floor Spreading Reviewing Content Mid-ocean ridges are long, underwater mountain chains that rise up from the ocean floors. Animation Source: Earthguide at Scripps Institution of Oceanography. pdf FREE PDF DOWNLOAD NOW!!! Source #2: lab seafloor spreading rates answers. Furthermore, as earlier discussed in the post Methane release caused by earthquakes, there has been a lot of seismic activity in the Aleutian Islands region all the way up into Alaska, including an earthquake with a magnitude of 7 on the Richter scale on August 30, 2013, and several more recent earthquakes with a higher magnitude than 6 on the Richter scale. (Useful conversion factors: 1 km = 1000 meters and 1 m = 100 cm) 5. AN OVERVIEW OF SEA-FLOOR SPREADING AND PLATE TECTONICS. South Atlantic. 5 Reference: The exercise on sea­ floor spreading was adapted from the following paper. Seafloor Spreading Hypothesis. A ^ | Seafloor Spreading Rates Lab Preview Directions: Answer these questions before you begin the Lab. As the sea floor spreads, the Earth's crust is changing and moving the. At mid-ocean ridges, the lithospheric plates move apart at rates of 5-150 mm/y and new ocean lithosphere is formed continuously. Those answers are not found in the 'New Green Deal' nor do they come from the leadership of Extinction Rebellion, who seek to retool and 'rebrand' capitalism with new technologies and business-as-usual resource exploitation, under the guise of 'sustainability' a. 89×1027 feet). Spreading rate is the rate at which an ocean basin widens due to seafloor spreading. The rapid expansion of our species may have been spurred by the evolution of human cognition. At spreading rates of about 15 cm. pdf FREE PDF DOWNLOAD Sea Floor Spreading Worksheet - Legacy Preparatory …. Discovering Plate Boundaries has been selected for inclusion in the Reviewed Collection of the Digital Library for Earth System Education ()!. The crust is made up of plates which include both the plate portion above sea and below sea. A number of useful applications have been identified and are in the process of implementation, such as the online issuance of security clearance, the agriculture marketing system to provide market rates and information, online forest clearance and land transactions. Living Things Are Organized. These ridges mark the boundaries between two plates that are diverging, or moving away from one another. 1) What feature of the ocean floor is shown at A? 2) Describe the process shown occurring at B, and explain what results from this. 67 cos(θ) + 0. Check lab exercise key outside 3820 Geology. researchgate. 15N detection harnesses the slow relaxation property of nitrogen: Delivering enhanced resolution for intrinsically disordered proteins [Biophysics and Computational Biology :: ]Studies over the. “When the well’s dry, we know the worth of water. 7 Plate Tectonics of the Northwest United States Activity 2. The question below from Ask-a-Geologist is just one of many like it: Q: Dear Geologist,. Learn Interactively. Activity 3 The width of ocean floor between the spreading ridge in the South Atlantic Ocean at 30°S and the edge of the continental shelves along the east coast of South America and the west coast of southern Africa at 3°S is approximately 3100 and 2700 km. 5 billion years ago. We can calculate an average rate of seafloor spreading by measuring the distance between MOR's, then divide the distance by the and age of seafloor rocks collected there (e. Sediments are also much thickest near continents. It is an underwater mountain range that forms when magma pushes up on the crust at a divergent boundary. 7-Meter O’Clock By Bas den Hond Atomic clocks are now so accurate that Earth’s. These isochrons geomagnetic polarity time scale. Theory of Plate Tectonics. redhookcentralschools. Seafloor spreading refers to: A) sediments from the continents spreading over the seafloor. Quickly review concepts with key information. This compound then breaks down into a hydrogen ion (H+) and bicarbonate (HCO3-). Earthquakes Living Lab: The Theory of Plate Tectonics Activity—Worksheet Example Answers 3 volcanoes Volcanoes occur along hot zones at plate boundaries Underground volcanoes are "seamounts" A line of seafloor volcanoes indicates the direction a tectonic plate is moving 8. No, it’s not the same. They apply mathematical concepts such as the calculation and use of velocities and conversion from one set of units to another. Lecture #26: Rock Magnetism and Sea-floor Spreading. Procedures:. Lab 4C- Hydrogenous Sediments. pdf FREE PDF DOWNLOAD NOW!!! Source #2: lab seafloor spreading rates answers. When comparing rates of tree development with calendar years, they found a stunning 154—321 percent increase in the growth rate of dominant individual trees between 1901 and 2001. Their crystals are pulled into alignment by the Earth’s magnetic field, just like a compass needle is pulled towards magnetic north. Michael Osterholm is an internationally recognized expert in infectious disease epidemiology. Sea Floor Spreading occurs at the mid-ocean ridge where two plates are moving away from each other. What do you think are the strengths and weaknesses of this model as a model for demonstrating sea-floor spreading? (2pts) Answers to Analyze and Conclude: Formation of new seafloor (sea-floor spreading, the plates are diverging). Geological observations, geophysical data, and theoretical considerations support the existence of fundamentally distinct types of plate boundaries, named and classified on the basis of whether immediately adjacent plates move apart from one another (divergent plate margins), toward one another (convergent plate margins), or slip past one another in a direction. “Until May 3, every Indian will have to stay in lockdown. No, it’s not the same. In the mid-1900s, scientists mapped the mid-ocean ridges using sonar. 04 inch) per year to 17 cm (6. If you don't see any interesting for you, use our search form on bottom ↓. As far as other evidence supporting the theory of human-caused global warming, Dr. The oldest seafloor is only about 230 million years old even though the earth itself is a little over 4 billion years old, or only about 5% of the total. students will use actual data from historic oceanographic cruises to examine sea floor spreading. Pickett sensibly considers it the ____ of one. Singapore’s health ministry confirmed 386 more cases in the city-state’s biggest daily. The ridge grows by the process of seafloor spreading, by which the earth is actually renewing its surface. Wet climates accelerate the rates of chemical weathering, caused when C0 2 in dirt mixes with air and water to form a weak acid. The nitrogen fixation-denitrification balance has the potential tohave an effect on the concentration of carbon in the atmosphere. Showing top 8 worksheets in the category - The Seafloor. Areas of seafloor spreading are along a divergent plate boundary because the plates are being pushed apart by the rising magma. In a follow-up activity (Sea Floor Spreading II), students compare actual data from Topex satellite measurements to the model predictions of how sea floor spreading rates influence ocean topography. Here, magma rises up from. At a location in the Atlantic Ocean where the spreading rate is. This occurs when two plates made of oceanic crust pull apart. 4: Marine Sediments. 6 Date: Name: The map of the northern Atlantic Ocean Basin (Fig. Some countries are doing worse than others. They will also model sea floor spreading at a spreading center such as the Mid-Atlantic Ridge. If you look at a spreading ridge on a map, it has a stair-step pattern of segments at right angles. 1 Off NE Japan, Several 5+ Aftershocks - Map 'Rumors' Still Blamed - People Don't Want Fukushima Produce. Every time a bit of rock is subducted and expelled, its chemistry changes, making it lighter. question 1, page 55 Younger (it is closer to the mid-ocean ridge) question 2, page 55 Because the ocean spreads in opposite direction at essentially the same rate. Agents of erosion include flowing water, waves, wind, ice. White represents the youngest seafloor. As magma starts to harden into rock, iron-rich minerals solidify first. Quickly review concepts with key information. Seafloor spreading questions q sea floor spreading pg 23 29 pearson seafloor spreading worksheets review and reinforce. Thus the sea floor spreads out to either side as show in Figure 1. Whats people lookup in this blog: Seafloor Spreading Rates Worksheet Answers; Lab Seafloor Spreading Rates Worksheet Answers. Animation Source: Earthguide at Scripps Institution of Oceanography. According to the theory of plate tectonics, (from the Greek, tekto, "builder"), the Earth's crust is broken into many slowly moving plates. Helens) before much damage is done. Rate of sea floor spreading for the Mid Atlantic Ridge (inches per year) = 3. He has written for Bureau of National Affairs, Inc and various websites. such as from ODP cores). View Lab Report - Determining the Rate of Ocean-Floor Spreading Lab Report from PHYS 131 at St. A ^ | Seafloor Spreading Rates Lab Preview Directions: Answer these questions before you begin the Lab. They will ihen have to develop an aspect of the theory of sea-floor spreading in order `to explain the data that they will study. Record your answer. 5 mm y −1 and 33 mm y −1 respectively. They will also model sea floor spreading at a spreading center such as the Mid-Atlantic Ridge. and is pushed outward. • Predict the ultimate fate of the Juan de Fuca plate. Ecology, or ecological science, is the scientific study of the distribution and abundance of living organisms and how the distribution and abundance are affected by interactions between the. Part one concerns the characteristics of plate boundaries, while part two concerns the paleomagnetic evidence for sea­floor spreading. The lesson itself involves a. GitHub is home to over 50 million developers working together to host and review code, manage projects, and build software together. Our ancestors emerged in one or more waves, spreading into Asia, then Europe, and Australia. The mid-ocean ridge is the most extensive chain of mountains on Earth, stretching nearly 65,000 kilometers (40,390 miles) and with more than 90 percent of the mountain range lying in the deep ocean. Sea-floor Spreading Lab. LAB 15 Sea Floor Spreading - Tripod. We can calculate an average rate of seafloor spreading by measuring the distance between MOR's, then divide the distance by the and age of seafloor rocks collected there (e. Only very little melt is formed and this melt encounters difficulties to force its way through the cold and thick lithosphere to the seafloor. Sea Floor Spreading Answer Key. GEO-INSIGHT 2. The theory of seafloor spreading, which is part of plate tectonics theory, suggests that plates tend to spread away from divergent plate boundaries at close to equal rates on either side of the ridge. The Geologic Time Scale A-6 Geologic Process Rates A-7 SUMMARY A 8 KEY TERMS AND CONCEPTS A 8 Safety) 508 S U M M A R Y 510 K E Y T E R M S A N D C O N C E P T S 510 E X E R C I S E S 511 Appendix A Appendix B Mineral and Rock Identification B-1 Mineral Identification A Note on Mineral Formulas Geologic Time, Geologic Process Rates A-1. The Pokedex is clearly a wireless access terminal to a wiki all Pokemon trainers can edit. The magnetism of mid-ocean ridges helped scientists first identify the process of seafloor spreading in the early 20th century. An article about Discovering Plate Boundaries was published in January 2005 in the Journal of Geoscience Education. - Real Classrooms in Virtual Worlds: Scaffolding Interdisciplinary Collaborative Writing. The Bear Seamount (left), a guyot in the northern Atlantic Ocean. Nuclear Power - The Politics Of Power And Control. Note: The average spreading rate in the Atlantic is around 2 cm/yr. Seafloor spreading. com Sea floor spreading lab seafloor spreading model name date block sea floor spreading project answer key lab 4 an expedition to the seafloor answer key. What kind of pattern makes it easiest to identify the age of a particular patch of seafloor - where the. 00 Unclaimed account balances under $10, inactive for 15 months, will be used to purchase newspapers for classroom use. Showing top 8 worksheets in the category - Seafloor Spreading. 2 pieces of paper (11x17 or 8. Our activities will focus on Alfred Wegeners (1912) comprehensive theory of continental drift and the discovering of seafloor spreading by Harry Hess in 1960. Describe what this image is illustrating. Asked in Artificial Satellites. The lighter rock becomes the continental plates, while the relatively unprocessed rocks are the seafloor plates. Perform operations with numbers expressed in scientific notation, including problems where both decimal and scientific notation are used. (show formulas for calculations, with units) a. From Luke’s Journal: Date: January 2064. Dynamic Earth Sea-Floor Spreading Lab Introduction: According to the theory of plate tectonics (from the Greek, tetko, ‘builder’) the Earth’s crust is broken into many slowly moving plates. General Format. Whats people lookup in this blog: Exploring The Ocean Floor Worksheet Answers. 0 cm per year, the total spreading of the concerned ocean would be 1 + 1=2 cm per year. Lab: Radioactive Decay - LAB Graphing: 2 line graphs. Friday: Rock Cycle Assessment. The surface of Venus appears to be dominated by volcanic hot spots rather than spreading and subduction associated with plate tectonics. According to APM, “Black Americans are dying at elevated rates, relative to their population, in 28 of the 36 jurisdictions. Seafloor Spreading Rates. , use millimeters per year for seafloor spreading). Activity of the Month Activity of the Month – June, 2008 Plate Tectonics and Contributions from Scientific Ocean Drilling Summary In this activity. HW: Return the Signed Safety Contract and All about me worksheet. Milankovich Cycles- The pictures to the right show the 3 Milankovich cycles and how they work. Lab 4: Dynamic Ocean Floor Lab 4 Dynamic Ocean Floor; In-Class Exercise: Seafloor Bathymetry / Echosounder Depth-Travel Times; Intro to Plate Tectonics Part 1 (~1. Use your own words to complete. Every once in a while, the currents in the liquid core, which create the Earth’s magnetic field, reverse themselves: it is called a geomagnetic reversal. SQuAD is the Stanford Question Answering Dataset. A complete expansion cycle would need to be defined somehow. METZGER INTRODUCTION Purpose: Students will make a paper model illustrating the concept of sea-floor spreading and the development of symmetrical magnetic "stripes" on either side of a mid- ocean spreading center. As always feel free to email me if you have any questions. Also, no spreading rate or spreading asymmetry grids were constructed at that time. The estimated rate of Pacific Plate motion relative to the Hawaiian hot spot between 65 and 42 Myr is about 10 cm/yr, and the rate between 42 and 0. As magma starts to harden into rock, iron-rich minerals solidify first. " Page 93- "The Theory of Continental Drift" notes (see ppt. to examine and analyze; or a simple activity or lab which students can complete in the classroom or at home. Earthquakes Living Lab: The Theory of Plate Tectonics Activity—Worksheet Example Answers 3 volcanoes Volcanoes occur along hot zones at plate boundaries Underground volcanoes are "seamounts" A line of seafloor volcanoes indicates the direction a tectonic plate is moving 8. Some of the worksheets displayed are Sea floor spreading work, 5 4 ovr l lesson 3 seafloor profiling, Section 1 the seafloor main idea, Name date sea floor spreading l 1 2 3, Plate boundary work, Magnetic reversals activity, Inside earth work, G4 u8 l2 lesson 2 into the deep. Course Overview. Explain how the discovery of sea floor spreading has helped the theory of continental drift. Seafloor Diagram. Seafloor Spreading. Exploring the Deep Seafloor Things to Get Out of This Lab: Understand and be able to calculate seafloor-spreading rate. Seafloor spreading is happening at B. Plate-Tectonics Theory. ” ~ Benjamin Franklin. This unit climaxes with the concepts of seafloor formation and destruction, emphasizing process of seafloor spreading and the cause of the Pacific "Ring of Fire". キャベツとトマトとチキンのシチュー( クックパッド のレシピ) ・キノコソテー牛肉のせ ・ブロッコリーの納豆ドレッシング ポチロウが職場でキャベツを2玉貰ってきたので、キャベツメニューをクックパッドで探しました チキンが思ったより少なかった しかも キャベツ・レタスのツナ. B) older ocean floor moving away from a mid-ocean ridge with new seafloor forming in the resulting gap. Paper Folder 10. The mid-ocean ridge is the most extensive chain of mountains on Earth, stretching nearly 65,000 kilometers (40,390 miles) and with more than 90 percent of the mountain range lying in the deep ocean. A Model of Seafloor Spreading KEY 1. Most basalt magmas contain abundant molten iron. Vox reporter Umair Irfan speaks with Ira about the pandemic’s inequitable impacts for some communities, as well as other coronavirus and climate change news from the past week. Lab 4: Sea Floor Spreading SEA FLOOR SPREADING ANSWER KEY Table 1 Number of zero point Distance of zero point from center of ridge (kilometers) Age of zero point (millions of years) Rate of sea-floor movement (centimeters/year) 1 32. 1: Plate Boundaries, Earthquakes, and Tsunami. Master math & science concepts through regular personalized practice questions. Plate Tectonics Lab With Answer Key Worksheets & Teaching The theory of seafloor spreading, which is part of plate tectonics theory, predicts that plates. Click the "Age" checkbox to see the age of the seafloor on either side of the ridge. Activity 3 The width of ocean floor between the spreading ridge in the South Atlantic Ocean at 30°S and the edge of the continental shelves along the east coast of South America and the west coast of southern Africa at 3°S is approximately 3100 and 2700 km. 7 glencoe worksheets 1. - A Smart Home Lab as a Pedagogical Tool. GENERAL SCIENCE 1110L LAB LAB 9: Sea Floor Spreading. A crack in the ocean floor appears and then magma oozes up from the mantle to fill in the space between the plates, forming a raised ridge called a mid. He received a CALI Award for. It is an underwater mountain range that forms when magma pushes up on the crust at a divergent boundary. These plates move relative to one another above a hotter, deeper, more mobile zone at average rates as great as a. 11 Plate Movement and. Are the average rates of sea floor spreading the same in both the Atlantic and Pacific Oceans, and if not, how do they compare? 4. Plate-Tectonics Theory. The spreading rates of the mid-ocean ridges are small, the Pacific being 80-120 mm per year and the North Atlantic being 25 mm per year. redhookcentralschools. In convection, the hotter rocks rise and then spread. Sea Floor Spreading occurs at the mid-ocean ridge where two plates are moving away from each other. ridge push and slab pull c. Modeling Sea-Floor Spreading Along the entire length of Earth's mid-ocean ridge, the sea floor is spreading. Birdley "Continental Drift. Plate Tectonics Exercises Overview: This exercise examines the ideas of continental drift and of sea­ floor spreading that lead to the Theory of Plate Tectonics. pdf FREE PDF DOWNLOAD Sea Floor Spreading Worksheet - Legacy Preparatory …. Page 92-Pangaea Lab puzzle and lab questions. For example, interpret 3/4 as the result of dividing 3 by 4, noting that 3/4 multiplied by 4 equals 3, and that when 3 wholes are shared equally among. " Animation illustrating the changing CO2 storage in ocean crust over the past. Only very little melt is formed and this melt encounters difficulties to force its way through the cold and thick lithosphere to the seafloor. 46 cm/yr ; Notes: Ranges of Spreading throughout the world's oceans: 1cm/yr to 10 cm/yr. The mid-ocean. This worksheet has 8 fill in the blank questions. Weathering Rates; Stream Velocity and Discharge Seafloor Spreading PT Overview-ppt Stories Rocks Tell lab and answer sheet. Plate Tectonics Includes: Reproducible Student Pages ASSESSMENT Chapter Tests Chapter Review Teacher Guide and Answers 511-i-vi-MSS05-000000_CR 19. Displaying all worksheets related to - Anser Key To Seafloor Spreading. What might explain this difference?. Seafloor Spreading Rates. THE OCEAN BASIN The world ocean basin is an extensive suite of connected depressions (or basins) that are filled with salty water; covering 72% of the Earth's surface. By Review Home Co | October 13, 2018. The modern seafloor rocks of this region are forming along a divergent plate boundary called the Juan de Fuca Ridge. Determining Rate of Ocean-Floor Spreading Activity. Showing top 8 worksheets in the category - Seafloor Spreading. 5 * 10 7 cm / 6. Rate of sea floor spreading for the Mid Atlantic Ridge (cm per year) = g. divergent 15. Earthquakes Living Lab: The Theory of Plate Tectonics Activity—Worksheet Example Answers 3 volcanoes Volcanoes occur along hot zones at plate boundaries Underground volcanoes are "seamounts" A line of seafloor volcanoes indicates the direction a tectonic plate is moving 8. question 1, page 55 Younger (it is closer to the mid-ocean ridge) question 2, page 55 Because the ocean spreads in opposite direction at essentially the same rate. The nitrogen fixation-denitrification balance has the potential tohave an effect on the concentration of carbon in the atmosphere. evidence of sea-floor spreading. Spreading rate is the rate at which an ocean basin widens due to seafloor spreading. There's a Simple Way to Store Renewable Energy, And We Already Have The Technology. % Progress. LAB 15 Sea Floor Spreading - Tripod. In marine geology, a guyot (pronounced / ɡ iː ˈ j oʊ /), also known as a tablemountguyot (pronounced / ɡ iː ˈ j. ru; [email protected] Neanderthals produced sophisticated tools, but had little creativity or capacity for symbolic thought. Lab 4: Sea Floor Spreading SEA FLOOR SPREADING ANSWER KEY Table 1 Number of zero point Distance of zero point from center of ridge (kilometers) Age of zero point (millions of years) Rate of sea-floor movement (centimeters/year) 1 32. Evaluate real data collected by the Ocean Drilling Program that support seafloor spreading. ScienceDaily (Aug. Asked in Artificial Satellites. , by using visual fraction models or equations to represent the problem. C) the seafloor stretching thinner and thinner as continents pull away from each other. About 5 centimeters (2 inches) per year. Next, create a sample visual of seafloor spreading by cutting a slit in your notebook and pushing the two lines strips of paper up through (see example). net Sea floor spreading project answer key lab 4 sea floor spreading lab sea floor spreading project answer key lab 4 seafloor spreading. Recall: Rate (r) = Distance (d) ÷ Time (t) or r = d / t. If the pulling con-. When the concept of seafloor spreading came along, scientists recognized that it was the mechanism to explain how continents could move around Earth’s surface. Seafloor Spreading Rates - Displaying top 8 worksheets found for this concept. Obtain, evaluate, and communicate information to examine the. B) older ocean floor moving away from a mid-ocean ridge with new seafloor forming in the resulting gap. In this activity, you will observe the pattern and learn to calculate the rate of sea floor spreading. Seafloor Spreading and Plate Tectonics 6 PS-2979 Station 3 - Comparing the magnetism of magnetite and basalt Set up 24. Samples collected from the ocean floor show that the age of oceanic crust increases with distance from the spreading centre—important evidence in favour of this process. They are the shallowest major features of the seafloor. Students will make their own models of seafloor spreading and the magnetic strips that occur in the seafloor. Magma (hot molten underground rock material) rises up into the gap from below and cools to form new seafloor rock. Many scientists believe that some of these changes can be predicted. Activity 9 Seafloor Spreading Rates. Displaying all worksheets related to - Anser Key To Seafloor Spreading. ridge push and slab pull c. CONTENTS February 2012. question 1, page 55 Younger (it is closer to the mid-ocean ridge) question 2, page 55 Because the ocean spreads in opposite direction at essentially the same rate. It may be pointed out that the rate of seafloor spreading always means the rate of expansion only on one side of the mid-oceanic ridge. Land data are from the globe Project, that produced a digital elevation model with 0. 1) shows is chrons ( lines ofequal age) of te basaltic crust beneath the sediments that have accumulated on the seafloor. What is happening at Slit B? What feature occurs at the corresponding location on. seafloor hydrothermal vent systems to ocean chemistry. Problem-Solving Lab 13-1, p 347 MiniLab 13-1: Matching Restriction Enzymes to Cleavage Sites, p 351 Inside Story: Gel Electrophoresis, p 354 Problem Science - Qihua Primary School science kit, aquarium or terrarium, a biography of an inventor 7) Help to reinforce your. Lab Investigation Modeling Sea-Floor Spreading Reviewing Content Mid-ocean ridges are long, underwater mountain chains that rise up from the ocean floors. Purchase Treatise on Geochemistry - 2nd Edition. For example, every million years the Earth's magnetic poles tend to reverse 4 or 5 times. Plate Tectonics Video and Notes. Whether you've loved the book or not, if you give your honest and detailed thoughts then people will find new books that are right for them. Random forest (Breiman, 2001) is machine learning algorithm that fits many classification or regression tree (CART) models to random subsets of the input data and uses the combined result (the forest) for prediction. III-V), CEGEP, adult. Lab 4A: Ocean Sediments (Sieving) Feb 14. 8×1026 metres or 2. If that is true for the Juan de Fuca Ridge, then the two lines on your graph should be more or less on top of each other. What feature is formed at the ocean along the subduction zone?. X-axis is # half-lives, Y-axis is # M&Ms. Course Overview. Spreading rates are more often reported in millimeters (mm) per year, a unit more easy to grasp. Showing top 8 worksheets in the category - Seafloor Spreading. Seafloor Spreading Rates Lab Answers. Atlantic Sea-Floor Spreading Activity 2. *review course expectations (yes I have some expectations) and lab safety contract. above) Page 94-"Directed Reading A: Continental Drift and Sea-Floor Spreading" "Sea-Floor Spreading Lab. Use scientific notation and choose units of appropriate size for measurements of very large or very small quantities (e. Record your answer. The directional function was determined by non-linear regression of wave data measured at the toe of the dike and was calculated as γ θ = 0. Seafloor spreading is happening at B. The seafloor moves and carries continents with it. Trip Shows Maine Delegation Support. If, however, you are pressed for time in the course of a busy day, consider Plan B , Consider Making a Donation and/or becoming a Global Research Member. Magnetometer 14. 5 gigaparsecs (93 billion light-years, 8. 2 pieces of paper (11x17 or 8. Seafloor Spreading Rates - Displaying top 8 worksheets found for this concept. As was mentioned, the poles reverse (north pole becomes south pole and vice versa) at an approximately constant rate. pdf), Text File (. Students should be acquainted with the common types of sedimentary and. Seafloor Spreading Activity. (The rate at which new oceanic lithosphere is added to each tectonic plate on either side of a mid-ocean ridge is the spreading half-rate and is equal to half of the spreading rate). ScienceDaily (Aug. Sea-Floor Spreading Science, Grade 9. Lectures by Walter Lewin. What formula do you use to calculate the rate of movement in this lab? How did scientists use their knowledge of seafloor spreading and magnetic. 7cm/yr Oahu 300km 3. If your teaching Seafloor Spreading, this is an EASY and FUN lab to do with your students!! This lab is a great way to get students actively engaged in hands-on, cooperative learning! After following the EASY step-by-step instructions, students answer questions (analyze & conclude worksheet attached) about the lab challenging them to think critically about the process of seafloor spreading. mid-ocean ridges 3. They found no rocks that were older than 180 million years old. About the Author. Lecture #26: Rock Magnetism and Sea-floor Spreading. Mid-ocean ridges, also called seafloor-spreading centers, are long, linear volcanic ridges formed where the seafloor cracks into 2 plates of oceanic crust that spread away from each other. 7), in shallow water wide spread bubbling can fill the beam completely. 08/26/19 Crack in Pacific Seafloor Caused Volcanic Chain to Go Wet Lab Set for Sept. Tomato Soup Lab (pdf or google doc) Modeling Sea Floor Spreading Lab (pdf or google doc) Sea Floor Spreading Article (pdf or google doc) Pangea Puzzle Playdough Plate Tectonics Activity (pdf or google doc) Layers of the Earth & Plate Tectonics Homework Packet - collected February 12th, 2013 Guided Reading: Layers of the Earth (pdf or google doc). and is pushed outward. Seafloor Spreading Activity. Cover Story Features CONTENT 2 // Eos JANUARY 2020 24 18 32 18 Einstein Says: It’s 309. thin units would indicate slow. Spreading rates determine if the ridge is fast, intermediate, or slow. Recognize how age and magnetic clues support seafloor spreading. Activity of the Month Activity of the Month – June, 2008 Plate Tectonics and Contributions from Scientific Ocean Drilling Summary In this activity. This spreading occurs at about the same rate as your fingernails. Record your answer. Milankovich Cycles- The pictures to the right show the 3 Milankovich cycles and how they work. • Predict the ultimate fate of the Juan de Fuca plate. Climate Change Climate change can be viewed in 2 different ways: Natural Causes of Climate Change- There are several natural causes of climate change that include Milankovich cycles, solar fluctuations, and rates of plate tectonics. 19 Single Copy rates Daily $1. Seafloor spreading, supported by the magnetic reversal data from the ocean seafloor, was a plausible mechanism by which continents could move. Find seafloor spreading lesson plans and teaching resources. View Lab Report - Determining the Rate of Ocean-Floor Spreading Lab Report from PHYS 131 at St. com General Science 1110l Lab 9 Sea Floor Spreading -> Source : web2. Virtuality. Sea floor spreading project answer key lab 4 seafloor spreading paleomagnetism and seafloor spreading 3 7 determin chegg com seafloor spreading grade 9 free printable tests and worksheets. Harry Hess 13. Lab 2 Activities. For example, within a 16. Plate-Tectonics Theory. The question below from Ask-a-Geologist is just one of many like it: Q: Dear Geologist,. 6 million years. The WHO say we need to test all suspected cases, quarantine them, trace all close contacts and ask them to self isolate. ANALYZING DATA Analyzing Data How many kilometers have the left side of the North Atlantic basin spread in 2 million years? - 38. Sea-floor Spreading Lab. Sea Floor Spreading Answer Key. Earthquakes Living Lab: The Theory of Plate Tectonics Activity—Worksheet Example Answers 3 volcanoes Volcanoes occur along hot zones at plate boundaries Underground volcanoes are "seamounts" A line of seafloor volcanoes indicates the direction a tectonic plate is moving 8. Fun and educational resources including Science Fair ideas and earthquake science you can understand. It reacts with water molecules (H2O) to form carbonic acid (H2CO3). 5 Reference: The exercise on sea­ floor spreading was adapted from the following paper. Open and read the ^Introduction _ placemark balloon. Which basin has the fastest? Use your answers to Questions 5 and 6 to calculate the spreading rate, in centimeters per year, for the slowest spreading center and for the fastest spreading center. Plate motion and boundaries. If that is true for the Juan de Fuca Ridge, then the two lines on your graph should be more or less on top of each other. 6 km, and even harder to imagine a time span of 1 million years. Students will discover that the ocean floor is younger near the middle of the oceans and gets older as you move to the shorelines. Vision and Voyages for Planetary Science in the Decade 2013-2022 surveys the current state of knowledge of the solar system and recommends a suite of planetary science flagship missions for the decade 2013-2022 that could provide a steady stream of important new discoveries about the solar system. Students examine how geologists determine rates of sea floor spreading between two tectonic plates. Sales Executive And Unlikely Meeting With Destiny Kindle Edition Laura Schroff, Lab Seafloor Spreading Rates Answers, Cambridge Ielts Book 4 Reading Answers, tkam reading guide answers, Chapter 3 Guided Reading Answers, guided reading lesson plan template 5th grade, chapter 13 guided reading review economics, stoichiometry guided. 6 Date: Name: The map of the northern Atlantic Ocean Basin (Fig. 4: Marine Sediments. This compound then breaks down into a hydrogen ion (H+) and bicarbonate (HCO3-). Note: The average spreading rate in the Atlantic is around 2 cm/yr. Next, create a sample visual of seafloor spreading by cutting a slit in your notebook and pushing the two lines strips of paper up through (see example). Use the data you collect to create a graph showing the relationship between thickness of the sedi-. These ridges mark the boundaries between two plates that are diverging, or moving away from one another. List of Amc - Free ebook download as Word Doc (. transform 14. the rate of sea-floor spreading can be calculated. Gorda Ridge: a seafloor spreading center in the United States Exclusive Economic Zone. October 22, 2012. Please visit the National Oceanic and Atmospheric Administration (NOAA) website: 2008 Age of Oceans Plates) Take a moment to study and zoom in on the map and its legend (see the screenshot of this image on the next page). 5 billion light-years and its diameter about 28. A: Since rocks of equal distance from the spreading center are about the same age this means that the seafloor is spreading at the same rate on both sides of the spreading zone. Thus the sea floor spreads out to either side as show in Figure 1. What formula do you use to calculate the rate of movement in this lab? How did scientists me their knowledge of seafloor spreading and magnetic. Put the two striped strips of paper. This indicates how strong in your memory this concept is. Collect Lab Safety Contracts- Tank Talk (ppt) How to set up a Fish Tank Version 1. Plate tectonics (from the Late Latin: tectonicus, from the Ancient Greek: τεκτονικός, lit. Paper Folder 10. Lab: Sea-Floor Spreading. Chapter 2: The Sea Floor. For more information contact: Jeanne Curran at (207) 287-3156 AUGUSTA, Maine – State agriculture officials are calling their visit to Washington D. Helens) before much damage is done. However, the three components of basic plate tectonic concepts -matching coastlines, matching continental shelves, and using ocean fracture zones to control rotation of continents during sea-floor spreading-are reinforced and help lead to a deeper understanding of the fact that the edge of a continent is the continental. 5 * 10 7 cm / 6. It is an underwater mountain range that forms when magma pushes up on the crust at a divergent boundary. List of MAC. Students will make their own models of seafloor spreading and the magnetic strips that occur in the seafloor. If the spreading segments are the treads, the transforms are the risers that connect them. There are transform faults on either. 8×1026 metres or 2. 8 % per year through 2050 and between 1. The UK was doing that until the 12th March when they decided to stop testing for mild cases. This creates new ocean crust. The Earth's magnetic field has north and south poles. Is the idea that the continents are slowly drifting further away from each other. What might explain this difference?. Unit 4 - Earth's Interior. He received a CALI Award for. New Lewis & Curry Study Concludes Climate Sensitivity is Low April 24th, 2018 by Roy W. Some of the worksheets displayed are 5 4 ovr l lesson 3 seafloor profiling, Sea floor spreading work, A model of seafloor spreading, Plate boundary work, Name date sea floor spreading l 1 2 3, Lesson 3 a moving crust, Continental drift sea floor spreading and plate tectonics, Inside earth work. X-axis is # half-lives, Y-axis is # M&Ms. Lab Investigation Modeling Sea-Floor Spreading Reviewing Content Mid-ocean ridges are long, underwater mountain chains that rise up from the ocean floors. 2: At first glance, this is a "simple" exercise. Use the two illustrations that document the paleomagnetic seafloor anomalies below to determine plate motions. AP Chemistry. calculate any changes to the rate of seafloor spreading c. As part of our recent overhaul of the predictive modeling tools, we added support for random forests as a new modeling type. pdf FREE PDF DOWNLOAD ES 106 Laboratory # 4 - Western Oregon University. Seafloor Spreading Hypothesis. 5-minute (0. Children and Family Services. If, however, you are pressed for time in the course of a busy day, consider Plan B , Consider Making a Donation and/or becoming a Global Research Member. Seafloor spreading is most dynamic along giant underwater mountain ranges known as mid-ocean ridges. One copy of the sea-floor spreading model (see following page) Scissors. 2004 11:31 Page i tammyb 301:goscanc:scanc511:layouts: Lab: Seafloor Spreading Rates. 5 min, Youtube) Intro to Plate Tectonics Part 2 (~3 min, Youtube) Seafloor Spreading and Magnetic Reversals (~3 min, Youtube) Seafloor Bathymetry and Echosounder Technique (~2 min. The district also requires that at least one (1) lab per grading period should have a written lab report with analysis and conclusion. In the process of seafloor spreading, molten rock rises from within the Earth and adds new seafloor (oceanic crust) to the edges of the old. Learning Objectives. If that is true for the Juan de Fuca Ridge, then the two lines on your graph should be more or less on top of each other. The typical rates of seafloor spreading is 5 centimeters per year. 6 Use your answers to Question 5 to determine which ocean basin has Chapter 8 Lab Activity. New York: Springer-Verlag; 1990; pp. , 2007); such circulation might be closer to forms of circulation that have only been reported in fossilized form from the Earth's deep fracture. Learn Interactively. Its age range is 0 to 5 Ma. 90 percent of all government forms can now be downloaded from the Bhutan portal. North Atlantic cross-sections at 30° N, 40° N , and 50° N latitude are provided as is information on how to retrieve Topex elevation data from. Whats people lookup in this blog: Sea Floor Spreading Worksheet Answer Key Pearson Education; Seafloor Spreading Worksheet Pdf Answer Key Pearson Education. Ad The Simple Dollar. This is a continent-continent convergent boundary, and it is generally assumed that although the India Plate continues to move north toward the Asia Plate, there is no actual subduction taking place. Two measures of spreading rate are commonly cited: where the rate of spreading is determined on one side (i. 8 Myr is slightly less at 8. This creates new ocean crust. Echo sounders produce sound waves that travel outward in all directions, bounce off the nearest object, and then return to the ship. GENERAL SCIENCE 1110L LAB LAB 9: Sea Floor Spreading. The numbers give the ages in millions of years for the rocks on the ocean floor located along the lines. Island Distance Age Rate(Distance/Age) Molokai 210km 1. Seafloor spreading. While working in the offshore Oil and Gas Industry in the 1990s for Oceaneering International, I noticed that the majority of the work being performed by large workclass ROV (WCROV) systems was simply taking pictures of work sites. The questions in this online quiz will test you on some facts about sea floor spreading. test the Seafloor Spreading Hypothesis. Part 1 - The Atlantic Ocean (1) The major topographic feature of the Atlantic Ocean floor is called the. We can calculate an average rate of seafloor spreading by measuring the distance between MOR's, then divide the distance by the and age of seafloor rocks collected there (e. seafloor spreading d.