Plate Tectonics Notes # 2
... that seismic waves decrease in velocity from 100km to 700km below the Earth’s surface. (Seismic waves travel more slowly through liquids than solids). It is a plastic-like portion of the upper mantle that is partly MELTED . SEE ESRT PG 10! The TEMPERATURE of the asthenosphere is above the melting po ...
... that seismic waves decrease in velocity from 100km to 700km below the Earth’s surface. (Seismic waves travel more slowly through liquids than solids). It is a plastic-like portion of the upper mantle that is partly MELTED . SEE ESRT PG 10! The TEMPERATURE of the asthenosphere is above the melting po ...
EGU2016-9120 - CO Meeting Organizer
... plate boundaries form a zone characterized by frequent volcanic eruptions and seismicity. While convergent plate boundaries such as the Peru-Chile trench dominate the Circum-Pacific belt, divergent and transform boundaries are present as well. The eastern section of the Circum-Pacific belt extends f ...
... plate boundaries form a zone characterized by frequent volcanic eruptions and seismicity. While convergent plate boundaries such as the Peru-Chile trench dominate the Circum-Pacific belt, divergent and transform boundaries are present as well. The eastern section of the Circum-Pacific belt extends f ...
Tectonic Plates
... • Sea‐floor spreading is where new oceanic lithosphere forms as magma rises toward the surface and solidifies. ...
... • Sea‐floor spreading is where new oceanic lithosphere forms as magma rises toward the surface and solidifies. ...
Evidence of Plate Tectonics
... plastic asthenosphere. • Lithosphere – is broken into plates that ride on the asthenosphere. (rigid mantle and crust) • Asthenosphere – is the “plastic” mantle. (movement mechanism for lithosphere) ...
... plastic asthenosphere. • Lithosphere – is broken into plates that ride on the asthenosphere. (rigid mantle and crust) • Asthenosphere – is the “plastic” mantle. (movement mechanism for lithosphere) ...
Geochemical cycle of volatiles during plate
... solubility is 16-31 ppm in enstatite, 24-52 ppm in pyrope, and 246-267 ppm in forsterite. The fluid-mineral partition coefficients are 101-103 for fluorine and 103-106 for chlorine. Since the latter values are approximately three orders of magnitude higher than those for hydroxyl partitioning, fluid ...
... solubility is 16-31 ppm in enstatite, 24-52 ppm in pyrope, and 246-267 ppm in forsterite. The fluid-mineral partition coefficients are 101-103 for fluorine and 103-106 for chlorine. Since the latter values are approximately three orders of magnitude higher than those for hydroxyl partitioning, fluid ...
Study Sheet for ESS 202 Plate tectonics Supercontinents and
... by acceleration and shallowing of seismic activity relation to earthquakes: 1) both occur near plate boundaries, most explosive volcanoes and largest earthquakes both associated with convergent boundaries (subduction), 2) volcanic eruptions involve deforming crust and lead to earthquakes, 3) earthqu ...
... by acceleration and shallowing of seismic activity relation to earthquakes: 1) both occur near plate boundaries, most explosive volcanoes and largest earthquakes both associated with convergent boundaries (subduction), 2) volcanic eruptions involve deforming crust and lead to earthquakes, 3) earthqu ...
8.3 Causes of Plate Movements
... There are three main possible causes responsible for the movement of tectonic plates: Convection currents in the upper mantle Ridge push Slab Pull ...
... There are three main possible causes responsible for the movement of tectonic plates: Convection currents in the upper mantle Ridge push Slab Pull ...
Without hot rock, much of North America would be underwater
... American elevations high, most of the continent would be below sea level, except the high Rocky “We found a good explanation for the elevation of Mountains, the Sierra Nevada and the Pacific continents,” Hasterok says. “We now know why Northwest west of the Cascade Range,” says some areas are higher ...
... American elevations high, most of the continent would be below sea level, except the high Rocky “We found a good explanation for the elevation of Mountains, the Sierra Nevada and the Pacific continents,” Hasterok says. “We now know why Northwest west of the Cascade Range,” says some areas are higher ...
AoW: Plate Tectonics - watertown.k12.wi.us
... floor of the Indian Ocean, they triggered large aftershocks on faults the world over, and provided the best evidence yet that the vast Indo-Australian plate is being torn in two. Geologists have spent five months puzzling over the twin quakes of magnitude 8.6 and 8.2 – which took place off the coast ...
... floor of the Indian Ocean, they triggered large aftershocks on faults the world over, and provided the best evidence yet that the vast Indo-Australian plate is being torn in two. Geologists have spent five months puzzling over the twin quakes of magnitude 8.6 and 8.2 – which took place off the coast ...
Seafloor spreading
... crust, which contains the continents and seafloor, is geologically divided into seven large and numerous small plates. The plates move, driven by the heat convection in the Earth’s mantle, at a speed of several millimetres to centimetres per year (plate tectonics). So-called mid-oceanic ridges run t ...
... crust, which contains the continents and seafloor, is geologically divided into seven large and numerous small plates. The plates move, driven by the heat convection in the Earth’s mantle, at a speed of several millimetres to centimetres per year (plate tectonics). So-called mid-oceanic ridges run t ...
Grade 6 Chapter 1 Study Guide
... at a deep-ocean trench and this keeps a balance of new ocean floor being created while older crust is subducted into the mantle. Know that the sea-floor spreads at an average rate of between 2-10 centimeters a year and that the ocean floor is renewed about every 200 million years. ...
... at a deep-ocean trench and this keeps a balance of new ocean floor being created while older crust is subducted into the mantle. Know that the sea-floor spreads at an average rate of between 2-10 centimeters a year and that the ocean floor is renewed about every 200 million years. ...
Earth Science Chapter 9 Section 5 Review
... Slab-pull occurs when cold, dense oceanic lithosphere descends into the mantle, pulling the trailing lithospheric plate with it; ridge-push results when oceanic lithosphere slides down the sides of an ocean ridge under the influence of gravity, pushing the plate in front of it. ...
... Slab-pull occurs when cold, dense oceanic lithosphere descends into the mantle, pulling the trailing lithospheric plate with it; ridge-push results when oceanic lithosphere slides down the sides of an ocean ridge under the influence of gravity, pushing the plate in front of it. ...
normal fault - Madison County Schools
... The flat land on the horizon is the Kaibab Plateau, with forms the North Rim of the Grand Canyon in Arizona. The Kaibab Plateau is part of the Colorado Plateau. This uplift of the crust is what allowed the Colorado River to erode its way down over hundreds of millions of years to its ...
... The flat land on the horizon is the Kaibab Plateau, with forms the North Rim of the Grand Canyon in Arizona. The Kaibab Plateau is part of the Colorado Plateau. This uplift of the crust is what allowed the Colorado River to erode its way down over hundreds of millions of years to its ...
Table of Contents
... England and Associated Companies throughout the world Visit us on the World Wide Web at: www.pearsonglobaleditions.com © Pearson Education Limited 2015 The rights of Frederick K. Lutgens and Edward J. Tarbuck to be identified as the authors of this work have been asserted by them in accordance with ...
... England and Associated Companies throughout the world Visit us on the World Wide Web at: www.pearsonglobaleditions.com © Pearson Education Limited 2015 The rights of Frederick K. Lutgens and Edward J. Tarbuck to be identified as the authors of this work have been asserted by them in accordance with ...
Quiz 2 - Brooklyn College
... 14. The Hawaiian Islands are a result of the Pacific Plate passing over a hot spot. ...
... 14. The Hawaiian Islands are a result of the Pacific Plate passing over a hot spot. ...
What is the crack in the ocean floor through which magma rises
... What occurs at a transform boundary? a. Oceanic lithosphere collides with continental lithosphere. b. Magma rises to the surface and forms a mid-ocean ridge. c. Two plates slide past each other horizontally. d. Two plates collide and crumple. ...
... What occurs at a transform boundary? a. Oceanic lithosphere collides with continental lithosphere. b. Magma rises to the surface and forms a mid-ocean ridge. c. Two plates slide past each other horizontally. d. Two plates collide and crumple. ...
2015 Earth`s Structure
... The composition of the Earth • The Earth is divided into three main layers – the crust, the mantle, and the core- based on the compounds that make up each layer. A compound is a substance composed of two or more elements. The least dense compounds make up the crust and mantle, the densest compounds ...
... The composition of the Earth • The Earth is divided into three main layers – the crust, the mantle, and the core- based on the compounds that make up each layer. A compound is a substance composed of two or more elements. The least dense compounds make up the crust and mantle, the densest compounds ...
3. The Earth system
... aggregate with other asteroids to form planets when the solar system formed. The age of the Solar System (and the Earth) derived from meteorites is 4.6 billion years. During the first billion years, the solar system was not yet cleared of the majority of its asteroids which means there was a higher ...
... aggregate with other asteroids to form planets when the solar system formed. The age of the Solar System (and the Earth) derived from meteorites is 4.6 billion years. During the first billion years, the solar system was not yet cleared of the majority of its asteroids which means there was a higher ...
Plate Tectonics - Choteau Schools
... – The crust and upper mantle (lithosphere) of the earth are broken into sections called plates. – These plates sit on top of the plastic (gooey) part of the mantle (asthenosphere). – These plates can move apart, converge, or slide past one another through time. ...
... – The crust and upper mantle (lithosphere) of the earth are broken into sections called plates. – These plates sit on top of the plastic (gooey) part of the mantle (asthenosphere). – These plates can move apart, converge, or slide past one another through time. ...
Chapter 2
... The continents average about 4.5 km elevation above the ocean floor. They stand notably higher than the ocean basins because the thick continental crust (大陸 地殼) is relatively light (average density 2.7 g/cm3). The thin oceanic crust (海洋地殼) is relatively heavy (average density 3.0g/cm3). The lithosph ...
... The continents average about 4.5 km elevation above the ocean floor. They stand notably higher than the ocean basins because the thick continental crust (大陸 地殼) is relatively light (average density 2.7 g/cm3). The thin oceanic crust (海洋地殼) is relatively heavy (average density 3.0g/cm3). The lithosph ...
Chemical Properties of Glacial and Ground Ice
... HNO3 and some H2SO4 in years with little volcanic activity and H2SO4, HCl, and HF in volcanic fallout. The chemical composition of the volcanic acids is dependent on the eruption, but H2SO4 is often an important or dominant component. The contribution of insoluble species can be estimated from alumi ...
... HNO3 and some H2SO4 in years with little volcanic activity and H2SO4, HCl, and HF in volcanic fallout. The chemical composition of the volcanic acids is dependent on the eruption, but H2SO4 is often an important or dominant component. The contribution of insoluble species can be estimated from alumi ...
Wegener—Continental Drift
... gases, and water from the mantle. C. Theory that pieces of Earth’s lithosphere are in constant motion, driven by convection currents in the mantle. D. Process by which oceanic crust sinks beneath a deep-ocean trench and back into the mantle. ...
... gases, and water from the mantle. C. Theory that pieces of Earth’s lithosphere are in constant motion, driven by convection currents in the mantle. D. Process by which oceanic crust sinks beneath a deep-ocean trench and back into the mantle. ...
Post-glacial rebound
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Post-glacial rebound (sometimes called continental rebound) is the rise of land masses that were depressed by the huge weight of ice sheets during the last glacial period, through a process known as isostatic depression. Post-glacial rebound and isostatic depression are different parts of a process known as either glacial isostasy, glacial isostatic adjustment, or glacioisostasy. Glacioisostasy is the solid Earth deformation associated with changes in ice mass distribution. The most obvious and direct affects of post-glacial rebound are readily apparent in northern Europe (especially Scotland, Estonia, Latvia, Fennoscandia, and northern Denmark), Siberia, Canada, the Great Lakes of Canada and the United States, the coastal region of the US state of Maine, parts of Patagonia, and Antarctica. However, through processes known as ocean siphoning and continental levering, the effects of post-glacial rebound on sea-level are felt globally far from the locations of current and former ice sheets.