4 - Theory of Plate Tectonics
... What is a SCIENTIFIC THEORY? A well tested concept that explains a wide range of observations • In 1965, J. Tuzo Wilson, a Canadian scientist proposed the theory of Plate Tectonics – Combined knowledge of sea-floor spreading with continental drift ...
... What is a SCIENTIFIC THEORY? A well tested concept that explains a wide range of observations • In 1965, J. Tuzo Wilson, a Canadian scientist proposed the theory of Plate Tectonics – Combined knowledge of sea-floor spreading with continental drift ...
Exam 1
... 34. Which one of the following is NOT a lithogenic (land derived) sediment? a. silt b. clay c. sand d. calcareous ooze 35. The Mid-Atlantic Ridge system is covered by a thick layer of surface sediment deposited slowly over a long period of time. a. True b. False 36. Which kind of plate movement is r ...
... 34. Which one of the following is NOT a lithogenic (land derived) sediment? a. silt b. clay c. sand d. calcareous ooze 35. The Mid-Atlantic Ridge system is covered by a thick layer of surface sediment deposited slowly over a long period of time. a. True b. False 36. Which kind of plate movement is r ...
Subduction Zone Earthquakes graph lab
... help geologist delineate active plate boundaries and infer locations of ancient plate boundaries. Most earthquakes have shallow focus depths (0 to 70 km below the surface), which makes sense since earthquakes do not occur in the hot, plastic rock of the asthenosphere or deeper in Earth’s interior. I ...
... help geologist delineate active plate boundaries and infer locations of ancient plate boundaries. Most earthquakes have shallow focus depths (0 to 70 km below the surface), which makes sense since earthquakes do not occur in the hot, plastic rock of the asthenosphere or deeper in Earth’s interior. I ...
The Ocean Floor DOC
... • Marking the seaward edge of the continental shelf is the continental slope, a steep gradient that leads to the deep-ocean floor. • Deep, steep-sided valleys known as submarine canyons are cut into the continental slope. • Turbidity currents are occasional movements of dense, sediment-rich water do ...
... • Marking the seaward edge of the continental shelf is the continental slope, a steep gradient that leads to the deep-ocean floor. • Deep, steep-sided valleys known as submarine canyons are cut into the continental slope. • Turbidity currents are occasional movements of dense, sediment-rich water do ...
Plate Tectonics
... The Early Case for Continental Drift • continents can be made to fit together like pieces of a picture puzzle • Alfred Wegener purposed that the continents were originally one giant supercontinent which he called Pangaea. Pangaea then split into two parts Laurasia which is now North America and Eur ...
... The Early Case for Continental Drift • continents can be made to fit together like pieces of a picture puzzle • Alfred Wegener purposed that the continents were originally one giant supercontinent which he called Pangaea. Pangaea then split into two parts Laurasia which is now North America and Eur ...
Plate Tectonics - My Teacher Pages
... liquid by the circulation of currents from one region to another Convection cell is a circular-moving loop of matter (gas or liquid) involved in convection movement ...
... liquid by the circulation of currents from one region to another Convection cell is a circular-moving loop of matter (gas or liquid) involved in convection movement ...
Shake, Rattle, and Roll the Earth
... – occur where plates collide or separate – not random in where they occur • Magnetism - Earth’s N-S poles periodically “switch” - some igneous rock contains iron - a record of these switches occur in the rock - surrounding the Mid-ocean ridges (places where new crust is formed) • Heatflow measuremen ...
... – occur where plates collide or separate – not random in where they occur • Magnetism - Earth’s N-S poles periodically “switch” - some igneous rock contains iron - a record of these switches occur in the rock - surrounding the Mid-ocean ridges (places where new crust is formed) • Heatflow measuremen ...
![Hirn and Laigle [2004]](http://s1.studyres.com/store/data/016241152_1-94ccf91c94bda93b4db1ea9c4d06f8a2-300x300.png)
Hirn and Laigle [2004]
... Kodaira et al. (6). In their simple earthquake-slip model, the block unclamped by pore-fluid pressure under the forearc crust would experience silent earthquakes before the megathrust earthquake. The absence of silent earthquakes on the other segments of Nankai is then consistent with more recent ru ...
... Kodaira et al. (6). In their simple earthquake-slip model, the block unclamped by pore-fluid pressure under the forearc crust would experience silent earthquakes before the megathrust earthquake. The absence of silent earthquakes on the other segments of Nankai is then consistent with more recent ru ...
tectonic plates.
... – The collision of India into Asia 50 million years ago caused the Eurasian Plate to crumple up and override the Indian Plate. After the collision, the slow continuous convergence of the two plates over millions of years pushed up the Himalayas and the Tibetan Plateau to their present heights. – Mos ...
... – The collision of India into Asia 50 million years ago caused the Eurasian Plate to crumple up and override the Indian Plate. After the collision, the slow continuous convergence of the two plates over millions of years pushed up the Himalayas and the Tibetan Plateau to their present heights. – Mos ...
Oceanic Lithosphere
... As you already know, if two plates collide (at a convergent plate margin) one of them may be forced down into the mantle. This process is called subduction. Exercise 7 Using Japan and the Andes in South America as examples, sketch two types of destructive plate boundaries. Japan-type ...
... As you already know, if two plates collide (at a convergent plate margin) one of them may be forced down into the mantle. This process is called subduction. Exercise 7 Using Japan and the Andes in South America as examples, sketch two types of destructive plate boundaries. Japan-type ...
Origin of Magma
... more difficult for melting to happen. If we could push a rock deeper and deeper into the Earth, would it melt? The interior of the Earth is hot and gets hotter the deeper we go; however, pressure is also increasing. S-waves from earthquakes tell us that the upper mantle and lower crust are solid. Th ...
... more difficult for melting to happen. If we could push a rock deeper and deeper into the Earth, would it melt? The interior of the Earth is hot and gets hotter the deeper we go; however, pressure is also increasing. S-waves from earthquakes tell us that the upper mantle and lower crust are solid. Th ...
6.1 Earthquakes and
... The elastic rebound theory says that rocks are stressed and will break at their weakest point and spring back to their original shape. As they break and move they release seismic waves The seismic waves cause other rocks to break and spring back. These are known as aftershocks ...
... The elastic rebound theory says that rocks are stressed and will break at their weakest point and spring back to their original shape. As they break and move they release seismic waves The seismic waves cause other rocks to break and spring back. These are known as aftershocks ...
File
... The nature of the rock at any area in the crust determines the elevation and whether it is covered with water. ...
... The nature of the rock at any area in the crust determines the elevation and whether it is covered with water. ...
Subduction Zones
... two or more plates pull away from each other. Oceans are born and grow wider where plates diverge or pull apart. As seen below, when a diverging boundary occurs on land a 'rift', or separation will arise and over time that mass of land will break apart into distinct land masses and the surrounding w ...
... two or more plates pull away from each other. Oceans are born and grow wider where plates diverge or pull apart. As seen below, when a diverging boundary occurs on land a 'rift', or separation will arise and over time that mass of land will break apart into distinct land masses and the surrounding w ...
MARINE SCIENCE SEMESTER I REVIEW OCEAN EXPLORATION
... 13. Explain why continental drift was not accepted at first. ...
... 13. Explain why continental drift was not accepted at first. ...
Earth Science, 12e (Tarbuck/Lutgens)
... 88) Which one of the following most accurately describes the volcanoes of the Hawaiian Islands? A) stratovolcanoes associated with subduction and a convergent plate boundary B) shield volcanoes fed by a long-lived hot spot below the Pacific lithospheric plate C) shield volcanoes associated with a mi ...
... 88) Which one of the following most accurately describes the volcanoes of the Hawaiian Islands? A) stratovolcanoes associated with subduction and a convergent plate boundary B) shield volcanoes fed by a long-lived hot spot below the Pacific lithospheric plate C) shield volcanoes associated with a mi ...
Mantle_1
... Covers about 70% of the Earth's surface Abyssal plains Flat, deep ocean floor Depth may be 3 - 5 km Sediments bury topography of oceanic crust Deep sea trenches The deepest part of the oceans May exceed 10.000 m deep Mariana trench and Tonga trench in the Pacific Ocean (subduction zones) - more than ...
... Covers about 70% of the Earth's surface Abyssal plains Flat, deep ocean floor Depth may be 3 - 5 km Sediments bury topography of oceanic crust Deep sea trenches The deepest part of the oceans May exceed 10.000 m deep Mariana trench and Tonga trench in the Pacific Ocean (subduction zones) - more than ...
S. Peacock (UBC) - Earth and Space Sciences
... • Pore pressures are likely high (~lithostatic), at least where dehydration reactions are taking place. • H2O production rates are relatively small, 100 mL per m2 column per yr • Very low permeabilities are required for significant volumes of H2O to accumulate beneath the slab interface ...
... • Pore pressures are likely high (~lithostatic), at least where dehydration reactions are taking place. • H2O production rates are relatively small, 100 mL per m2 column per yr • Very low permeabilities are required for significant volumes of H2O to accumulate beneath the slab interface ...
The Theory of Tectonic Plates
... The Theory of Plate Tectonics The Earth’s lithosphere (crust and upper mantle) is divided into tectonic plates. These plates move on top of the asthenosphere (lower mantle). We know that these plates move in different ways. ...
... The Theory of Plate Tectonics The Earth’s lithosphere (crust and upper mantle) is divided into tectonic plates. These plates move on top of the asthenosphere (lower mantle). We know that these plates move in different ways. ...
The Theory of Tectonic Plates
... The Theory of Plate Tectonics The Earth’s lithosphere (crust and upper mantle) is divided into tectonic plates. These plates move on top of the asthenosphere (lower mantle). We know that these plates move in different ways. ...
... The Theory of Plate Tectonics The Earth’s lithosphere (crust and upper mantle) is divided into tectonic plates. These plates move on top of the asthenosphere (lower mantle). We know that these plates move in different ways. ...
The Blue Planet
... Mid-Ocean Ridges A mid-ocean ridge is found near the center of most ocean basins. It is an interconnected system of underwater mountains that have developed on newly formed ocean crust. Seafloor Spreading • Seafloor spreading is the process by which plate tectonics produces new oceanic lithosphe ...
... Mid-Ocean Ridges A mid-ocean ridge is found near the center of most ocean basins. It is an interconnected system of underwater mountains that have developed on newly formed ocean crust. Seafloor Spreading • Seafloor spreading is the process by which plate tectonics produces new oceanic lithosphe ...
PLATE TECHTONICS
... forces that are available to drive the plates include the following: ridge push, trench pull, slab pull, viscous drag at the base of the plate, and the Eötvös force. The graph above indicates that the fastest plates on Earth, like the Juan de Fuca, Pacific, Philippines, and Cocos Plates, are oceanic ...
... forces that are available to drive the plates include the following: ridge push, trench pull, slab pull, viscous drag at the base of the plate, and the Eötvös force. The graph above indicates that the fastest plates on Earth, like the Juan de Fuca, Pacific, Philippines, and Cocos Plates, are oceanic ...
Magma Supply Vs Magma Plumbing
... Subduction zones are important because they are the downwelling branches in Earth’s mantle convection. • Subduction zones are responsible for some of the primary ...
... Subduction zones are important because they are the downwelling branches in Earth’s mantle convection. • Subduction zones are responsible for some of the primary ...