graham cracker plate tectonics _17
... 4. Name a specific location on the Earth where this kind of boundary activity takes place. (Use ...
... 4. Name a specific location on the Earth where this kind of boundary activity takes place. (Use ...
GEO100 05 plate tectonics
... Convergent plate boundaries: where two plates are moving towards one another. This is where trenches form in oceanic crust, and are commonly associated with volcanic activity (such as the Cascade volcanoes). ...
... Convergent plate boundaries: where two plates are moving towards one another. This is where trenches form in oceanic crust, and are commonly associated with volcanic activity (such as the Cascade volcanoes). ...
Warm-Up - mssarnelli
... Not only were there age patterns, but patterns of what else? Which scientist is responsible for the discovery of the Mid-Ocean Ridge & SeaFloor Spreading? ...
... Not only were there age patterns, but patterns of what else? Which scientist is responsible for the discovery of the Mid-Ocean Ridge & SeaFloor Spreading? ...
Lecture Test 2 Spring 2013 - Tarleton State University
... 1. In order for Wegener's "continental fit" to be more accurate, the continental margins are considered to be A.the modern shoreline of each continent B.the edges of the continental shelves C.all of the above D.none of the above 2. Evidence for evolution includes A.anatomy B.artificial selection C.g ...
... 1. In order for Wegener's "continental fit" to be more accurate, the continental margins are considered to be A.the modern shoreline of each continent B.the edges of the continental shelves C.all of the above D.none of the above 2. Evidence for evolution includes A.anatomy B.artificial selection C.g ...
Chapter 32: Plate Tectonics: A Working Model for the Earth
... shouldn’t there also be places where something is coming together? What moves the plates? Why are earthquakes so much more abundant and severe along some plate boundaries than along others? Zones of abundant earthquakes also mark zones of violent volcanic activity along many plate boundaries—do the ...
... shouldn’t there also be places where something is coming together? What moves the plates? Why are earthquakes so much more abundant and severe along some plate boundaries than along others? Zones of abundant earthquakes also mark zones of violent volcanic activity along many plate boundaries—do the ...
plate boundary - Cloudfront.net
... continents with warmer climates were found as fossils on continents with colder continent ...
... continents with warmer climates were found as fossils on continents with colder continent ...
35. Interpretation of Seismic-Reflection Data of the Middle America
... Figure 1 shows the location of multichannel common depth point (CDP) reflection transects, seismic refraction profiles, and sediment cores on the continental margin off Guatemala. The bathymetric contours of Figures 1 and 2, constructed from our sounding data, show a deep submarine canyon, called Sa ...
... Figure 1 shows the location of multichannel common depth point (CDP) reflection transects, seismic refraction profiles, and sediment cores on the continental margin off Guatemala. The bathymetric contours of Figures 1 and 2, constructed from our sounding data, show a deep submarine canyon, called Sa ...
2D finite element modeling
... accretionary prism at di#erent stages during the Late Cretaceous accretion of Mesozoic melange belts (McHugh Complex and Iceworm melamges) in the Chugach convergent margin, central-south Alaska. The accretionary prism is assumed to be elastic continuum. The subduction of the Pacific plate beneath the ...
... accretionary prism at di#erent stages during the Late Cretaceous accretion of Mesozoic melange belts (McHugh Complex and Iceworm melamges) in the Chugach convergent margin, central-south Alaska. The accretionary prism is assumed to be elastic continuum. The subduction of the Pacific plate beneath the ...
Pacific plate shrinking as it cools: Calculations challenge
... at the University of Nevada, Reno, have determined that cooling of the lithosphere—the outermost layer of Earth—makes some sections of the Pacific plate contract horizontally at faster rates than others and cause the plate to deform. Gordon said the effect detailed this month in Geology is most pron ...
... at the University of Nevada, Reno, have determined that cooling of the lithosphere—the outermost layer of Earth—makes some sections of the Pacific plate contract horizontally at faster rates than others and cause the plate to deform. Gordon said the effect detailed this month in Geology is most pron ...
Movement of Tectonic Plates
... – Where two tectonic plates collide – Denser crust eventually goes below less-dense crust in a process called subduction – Causes deep sea trenches to form – Volcanoes and mountains form at these boundaries; earthquakes are common Convergent plate boundary ...
... – Where two tectonic plates collide – Denser crust eventually goes below less-dense crust in a process called subduction – Causes deep sea trenches to form – Volcanoes and mountains form at these boundaries; earthquakes are common Convergent plate boundary ...
Plate Boundaries - WWWeb Course Listings
... What evidence is given here to support the plate tectonic model? ...
... What evidence is given here to support the plate tectonic model? ...
Name Student # Lab Time: 8 am 2 pm (Please
... deep focus earthquakes. Continent-continent collisions are similar to head-on collisions between cars. No plate is subducted, but the impact forces some of the crust deep into the earth in order to maintain isostatic balance with the mountains that are created. The cross-section of the Afghanistan s ...
... deep focus earthquakes. Continent-continent collisions are similar to head-on collisions between cars. No plate is subducted, but the impact forces some of the crust deep into the earth in order to maintain isostatic balance with the mountains that are created. The cross-section of the Afghanistan s ...
Seafloor Spreading
... – Subduction occurs when one of the two converging plates descends beneath the other. – A subduction zone forms when one oceanic plate, which has become denser as a result of cooling, descends below another plate creating a deep-sea trench. – The subducted plate descends into the mantle and melts. – ...
... – Subduction occurs when one of the two converging plates descends beneath the other. – A subduction zone forms when one oceanic plate, which has become denser as a result of cooling, descends below another plate creating a deep-sea trench. – The subducted plate descends into the mantle and melts. – ...
Why is subduction on the Earth one-sided?
... However, in global mantle convection models, where this asymmetry is not prescribed, subduction is symmetrical, or “two-sided” (Figs. 1C and 1D), where downwelling involves materials from both plates (Tackley, 2000). Recent dynamic models of subduction process, operating with realistic viscoelasticp ...
... However, in global mantle convection models, where this asymmetry is not prescribed, subduction is symmetrical, or “two-sided” (Figs. 1C and 1D), where downwelling involves materials from both plates (Tackley, 2000). Recent dynamic models of subduction process, operating with realistic viscoelasticp ...
42The Theory of Plate Tectonics
... n Activity 40, “The Continent Puzzle,” you investigated the movement of continents. Today, geologists know that it’s not just the continents that move—it is the entire surface of the earth! The earth’s surface is broken into large sections called plates. These plates not only include the surface of ...
... n Activity 40, “The Continent Puzzle,” you investigated the movement of continents. Today, geologists know that it’s not just the continents that move—it is the entire surface of the earth! The earth’s surface is broken into large sections called plates. These plates not only include the surface of ...
GEO115 - Ocean Bottom
... Geology 115 – Ocean Bottom Name: ________________________________________________________ Wilson Cycles. Most geologists believe that the Earth’s ocean basins open and close over a periods of several hundred million years. Each of these periods is called what? ...
... Geology 115 – Ocean Bottom Name: ________________________________________________________ Wilson Cycles. Most geologists believe that the Earth’s ocean basins open and close over a periods of several hundred million years. Each of these periods is called what? ...
File
... • Wegener was a meteorologist and his theory was not well accepted. (He died on an expedition in Greenland collecting ice samples) ...
... • Wegener was a meteorologist and his theory was not well accepted. (He died on an expedition in Greenland collecting ice samples) ...
E. Earthquake destruction 1. Factors that determine structural
... a. Thin, rocky outer layer b. Varies in thickness 1. Roughly 7 km (5 miles) in oceanic regions 2. Continental crust averages 35-40 km (25 miles) 3. Exceeds 70 km (40 miles) in some mountainous regions c. Two parts 1. Continental crust a. Upper crust composed of granitic rocks b. Lower crust is more ...
... a. Thin, rocky outer layer b. Varies in thickness 1. Roughly 7 km (5 miles) in oceanic regions 2. Continental crust averages 35-40 km (25 miles) 3. Exceeds 70 km (40 miles) in some mountainous regions c. Two parts 1. Continental crust a. Upper crust composed of granitic rocks b. Lower crust is more ...
sea-floor spreading
... In the mid-1900’s, scientists realized that the ocean floor had many mountain ranges similar to those on the continents. ...
... In the mid-1900’s, scientists realized that the ocean floor had many mountain ranges similar to those on the continents. ...
Plate Tectonics worksheet
... Transform Plate Boundaries are when plates move side by side with each other resulting in frequent earthquakes. Convergent Plate Boundaries are where one plate dives (subducts) under less dense crust to be recycled back into the asthenosphere. There are three types of convergent plate boundaries: • ...
... Transform Plate Boundaries are when plates move side by side with each other resulting in frequent earthquakes. Convergent Plate Boundaries are where one plate dives (subducts) under less dense crust to be recycled back into the asthenosphere. There are three types of convergent plate boundaries: • ...
Plate Tectonics - Warren County Public Schools
... Continental convergence form mountain ranges Example: Himalayan Mountains formed by the convergence of the Indian and Eurasian Plates. ...
... Continental convergence form mountain ranges Example: Himalayan Mountains formed by the convergence of the Indian and Eurasian Plates. ...
The Stability of Tibetan Mantle Lithosphere
... at that time. One explanation for that increase depended on the idea that the mantle lithosphere beneath Tibet had been replaced by asthenosphere, either by some form of convective thinning or by a delamination process akin to retreating subduction acting on the unstable lithospheric mantle layer. S ...
... at that time. One explanation for that increase depended on the idea that the mantle lithosphere beneath Tibet had been replaced by asthenosphere, either by some form of convective thinning or by a delamination process akin to retreating subduction acting on the unstable lithospheric mantle layer. S ...
Pangea Breaks Up!
... ► What happens to the buoyancy of the lithosphere? ► What is the result of this? ...
... ► What happens to the buoyancy of the lithosphere? ► What is the result of this? ...
Oceanic trench
The oceanic trenches are hemispheric-scale long but narrow topographic depressions of the sea floor. They are also the deepest parts of the ocean floor. Oceanic trenches are a distinctive morphological feature of convergent plate boundaries, along which lithospheric plates move towards each other at rates that vary from a few mm to over ten cm per year. A trench marks the position at which the flexed, subducting slab begins to descend beneath another lithospheric slab. Trenches are generally parallel to a volcanic island arc, and about 200 km (120 mi) from a volcanic arc. Oceanic trenches typically extend 3 to 4 km (1.9 to 2.5 mi) below the level of the surrounding oceanic floor. The greatest ocean depth to be sounded is in the Challenger Deep of the Mariana Trench, at a depth of 11,034 m (36,201 ft) below sea level. Oceanic lithosphere moves into trenches at a global rate of about 3 km2/yr.