File
... a. Oceanic crust: narrowest, 0-10 km, made mostly of dense basalt, 2/3 of the Earth’s surface, younger than the continental crust b. Continental crust: 35-70 km thick, made mostly of dense granite, covers 1/3 of Earth’s surface ...
... a. Oceanic crust: narrowest, 0-10 km, made mostly of dense basalt, 2/3 of the Earth’s surface, younger than the continental crust b. Continental crust: 35-70 km thick, made mostly of dense granite, covers 1/3 of Earth’s surface ...
Physical Geology
... plate boundaries and Mantle Hot Spots. New basaltic, oceanic crust is generated at divergent plate boundaries. • Sedimentary Rocks are formed along active and passive continental margins from sediments shed from continents • Sedimentary Rocks are formed on continents where a basin forms and sediment ...
... plate boundaries and Mantle Hot Spots. New basaltic, oceanic crust is generated at divergent plate boundaries. • Sedimentary Rocks are formed along active and passive continental margins from sediments shed from continents • Sedimentary Rocks are formed on continents where a basin forms and sediment ...
KEY
... 2. What are the relationships among mantle convection, ocean ridges, and subduction zones? Upward mantle convection is thought to be associated with ridges, while downward mantle convection is associated with subduction zones. 3. Hypothesize what might happen to mantle convection currents beneath a ...
... 2. What are the relationships among mantle convection, ocean ridges, and subduction zones? Upward mantle convection is thought to be associated with ridges, while downward mantle convection is associated with subduction zones. 3. Hypothesize what might happen to mantle convection currents beneath a ...
Volcanism - West Virginia University
... – SiO2 and to a lesser extent Al2O3, control viscosity of magmas, because they form polymers in magma – basalt viscosity at eruption T – 102-104 pascal-sec. – andesite viscosity at eruption T – 104-106 pa-s – rhyolite viscosity at eruption T ~ 1010 pa-s (up to one-hundred million x higher than basal ...
... – SiO2 and to a lesser extent Al2O3, control viscosity of magmas, because they form polymers in magma – basalt viscosity at eruption T – 102-104 pascal-sec. – andesite viscosity at eruption T – 104-106 pa-s – rhyolite viscosity at eruption T ~ 1010 pa-s (up to one-hundred million x higher than basal ...
EGU2012-6051
... Continents slowly drift at the top of the mantle, undergoing episodic events like collision, aggregation or splitting. Continental drift and oceanic plate tectonics are surface expressions of mantle convection and closely linked to the thermal state of the mantle. In the present study we will presen ...
... Continents slowly drift at the top of the mantle, undergoing episodic events like collision, aggregation or splitting. Continental drift and oceanic plate tectonics are surface expressions of mantle convection and closely linked to the thermal state of the mantle. In the present study we will presen ...
Geology Module: Seismic Interior Lecture Outline
... 2. Older are at a distance from the ridge c. Ocean basins are geologically young 4. Hot spots a. Rising plumes of mantle material b. Volcanoes can form over them 1. Example: Hawaiian Island chain 2. Chains of volcanoes mark plate movement F. Measuring plate motion 1. By using hot spot “tracks” like ...
... 2. Older are at a distance from the ridge c. Ocean basins are geologically young 4. Hot spots a. Rising plumes of mantle material b. Volcanoes can form over them 1. Example: Hawaiian Island chain 2. Chains of volcanoes mark plate movement F. Measuring plate motion 1. By using hot spot “tracks” like ...
8.E.1 Vocab - Schoolwires.net
... Divergent Boundary – the location where two tectonic plates pull apart Transform Boundary – the location where two tectonic plates slide past each other Sedimentary rock –formed at the surface of the Earth, either in water or on land. They are layered accumulations of sediments-pieces of rock, miner ...
... Divergent Boundary – the location where two tectonic plates pull apart Transform Boundary – the location where two tectonic plates slide past each other Sedimentary rock –formed at the surface of the Earth, either in water or on land. They are layered accumulations of sediments-pieces of rock, miner ...
Section 19.2
... suggested the concept of continental drift. Continental drift is the idea that the continents move around on Earth’s surface. ...
... suggested the concept of continental drift. Continental drift is the idea that the continents move around on Earth’s surface. ...
Review Questions, Chapter 7, 12th Ed.
... 14. Transform fault boundaries, like the San Andreas fault, represent areas where plates slip past one another. Lithosphere is neither produced (as along divergent boundaries) nor destroyed (as along convergent boundaries) along transform faults. 18. The age of the oldest sediments recovered by deep ...
... 14. Transform fault boundaries, like the San Andreas fault, represent areas where plates slip past one another. Lithosphere is neither produced (as along divergent boundaries) nor destroyed (as along convergent boundaries) along transform faults. 18. The age of the oldest sediments recovered by deep ...
8.3 Causes of Plate Movements
... 8.3 Causes of Plate Movements There is large body of evidence that plate tectonics move around. WHY DOES THIS HAPPEN???? ...
... 8.3 Causes of Plate Movements There is large body of evidence that plate tectonics move around. WHY DOES THIS HAPPEN???? ...
Earth`s interior
... Three main layers of Earth vary greatly in size, composition, temperature and pressure. They are: crust, mantle, and core. ...
... Three main layers of Earth vary greatly in size, composition, temperature and pressure. They are: crust, mantle, and core. ...
chapter 11 -- plate tectonics
... One type of plate boundary is not shown in this figure; Which type is not shown? (Theory of Plate Tectonics Continued) D) General characteristics related to plate tectonics: -- Volcanoes and Earthquakes are concentrated along ________ ______________. An example is the “Ring of _______” in the Pacifi ...
... One type of plate boundary is not shown in this figure; Which type is not shown? (Theory of Plate Tectonics Continued) D) General characteristics related to plate tectonics: -- Volcanoes and Earthquakes are concentrated along ________ ______________. An example is the “Ring of _______” in the Pacifi ...
Plate Tectonics * Guided Notes
... 5. _________________ _______________ type of convergent boundary created where one plate bends and sinks beneath the other. • Old Sea Floor being destroyed 6. The newly formed magma is forced upward along these plate boundaries, forming ___________________. Where Plates Collide 1. A subduction zone ...
... 5. _________________ _______________ type of convergent boundary created where one plate bends and sinks beneath the other. • Old Sea Floor being destroyed 6. The newly formed magma is forced upward along these plate boundaries, forming ___________________. Where Plates Collide 1. A subduction zone ...
The Floods Came Up and The Rains Came Down
... 40-thousand mile long mountain chain was found on the bottom of the ocean extending around the globe like a seam on a baseball. It was apparently formed from hot magma being extruded from the earth’s crust into the ocean, cooling, and hardening into solid rock. Based on this evidence the Plate Tecto ...
... 40-thousand mile long mountain chain was found on the bottom of the ocean extending around the globe like a seam on a baseball. It was apparently formed from hot magma being extruded from the earth’s crust into the ocean, cooling, and hardening into solid rock. Based on this evidence the Plate Tecto ...
Overhead: Continental Drift / Plate Tectonics
... themselves with the earth’s magnetic field. ⑥ Mid-oceanic Ridge – Rocks are younger closer to the ridge and older as you move further away from it. ⑦ Satellite Measurements – Satellites have detected that the plates are moving 1-2 cm per year. ...
... themselves with the earth’s magnetic field. ⑥ Mid-oceanic Ridge – Rocks are younger closer to the ridge and older as you move further away from it. ⑦ Satellite Measurements – Satellites have detected that the plates are moving 1-2 cm per year. ...
PLATE TECTONICS - Los Alamos Public Schools / Home
... • Geyser- water is heated, but let through a small opening which causes pressure and the water sprays out • Can be utilized for geothermal energy ...
... • Geyser- water is heated, but let through a small opening which causes pressure and the water sprays out • Can be utilized for geothermal energy ...
Outer Core
... How do we know for sure what’s under us??? How can we know what each part is made from if we haven’t been there? Scientists use vibrations called Seismic Waves created during earthquakes to determine thickness and composition. Waves move through solid and liquid material at different speeds. ...
... How do we know for sure what’s under us??? How can we know what each part is made from if we haven’t been there? Scientists use vibrations called Seismic Waves created during earthquakes to determine thickness and composition. Waves move through solid and liquid material at different speeds. ...
Notes - Plate Tectonics
... Instead, they found no rock older than 200 million years old and most were much younger. How could the ocean floor be younger than the continents riding on it? ...
... Instead, they found no rock older than 200 million years old and most were much younger. How could the ocean floor be younger than the continents riding on it? ...
answer key - Riverdale Middle School
... The forces can be both constructive and destructive. When the lava flows over the Earth’s surface it kills and destroys things like plants and animals. This is destructive. When the lava hardens and turns into rock adding to the Earth’s surface, this is constructive. Describe what happens when…. a.) ...
... The forces can be both constructive and destructive. When the lava flows over the Earth’s surface it kills and destroys things like plants and animals. This is destructive. When the lava hardens and turns into rock adding to the Earth’s surface, this is constructive. Describe what happens when…. a.) ...
Unit 10 vocabulary
... 1) Crust: Thin, outer layer of the Earth, about 10 km thick under the oceans and up to 50 km thick of the continents. 2) Mantle: Largest layer of the Earth, composed of very hot, dense flowing rock found below the crust and above the core. 3) Inner core: Solid innermost and hottest part of the earth ...
... 1) Crust: Thin, outer layer of the Earth, about 10 km thick under the oceans and up to 50 km thick of the continents. 2) Mantle: Largest layer of the Earth, composed of very hot, dense flowing rock found below the crust and above the core. 3) Inner core: Solid innermost and hottest part of the earth ...
Large igneous province
A large igneous province (LIP) is an extremely large accumulation of igneous rocks, including liquid rock (intrusive) or volcanic rock formations (extrusive), when hot magma extrudes from inside the Earth and flows out. The source of many or all LIPs is variously attributed to mantle plumes or to processes associated with plate tectonics. Types of LIPs can include large volcanic provinces (LVP), created through flood basalt and large plutonic provinces (LPP). Eleven distinct flood basalt episodes occurred in the past 250 million years, creating volcanic provinces, which coincided with mass extinctions in prehistoric times. Formation depends on a range of factors, such as continental configuration, latitude, volume, rate, duration of eruption, style and setting (continental vs. oceanic), the preexisting climate state, and the biota resilience to change.