File
... ________________ 2. a rigid layer of the Earth's crust that is believed to drift slowly. ________________ 3. The movement, formation, or re-formation of continents described by the theory of plate tectonics. ________________ 4. a theory explaining the structure of the earth's crust and how the inter ...
... ________________ 2. a rigid layer of the Earth's crust that is believed to drift slowly. ________________ 3. The movement, formation, or re-formation of continents described by the theory of plate tectonics. ________________ 4. a theory explaining the structure of the earth's crust and how the inter ...
Name____________________________
... the upper mantle. Plate Boundary: Place where two plates meet. Divergent Boundary: Place where two plates pull apart. Convergent Boundary: Place where two plates come together. Transform Boundary: Place where two plates slide past each other. Oceanic Crust: Dense crust formed by seafloor spreading a ...
... the upper mantle. Plate Boundary: Place where two plates meet. Divergent Boundary: Place where two plates pull apart. Convergent Boundary: Place where two plates come together. Transform Boundary: Place where two plates slide past each other. Oceanic Crust: Dense crust formed by seafloor spreading a ...
The Yellowstone magmatic system from the mantle plume to
... and Victor C. Tsai Abstract The Yellowstone supervolcano is one of the largest active continental silicic volcanic fields in the world. An understanding of its properties is key to enhancing our knowledge of volcanic mechanisms and corresponding risk. Using a joint local and teleseismic earthquake P ...
... and Victor C. Tsai Abstract The Yellowstone supervolcano is one of the largest active continental silicic volcanic fields in the world. An understanding of its properties is key to enhancing our knowledge of volcanic mechanisms and corresponding risk. Using a joint local and teleseismic earthquake P ...
Tectonic Plates - Louis Pasteur MS 67 Science Department Resources
... Literacy Fusion Article: “Earth's tectonic plates have doubled their speed” SO MUCH for slowing down as you age. Earth's tectonic plates are moving faster now than at any point in the last 2 billion years, according to the latest study of plate movements. But the result is controversial, since previ ...
... Literacy Fusion Article: “Earth's tectonic plates have doubled their speed” SO MUCH for slowing down as you age. Earth's tectonic plates are moving faster now than at any point in the last 2 billion years, according to the latest study of plate movements. But the result is controversial, since previ ...
Chapter 1 Study Guide – Plate Tectonics
... a. direct from rock samples b. indirect from seismic waves ...
... a. direct from rock samples b. indirect from seismic waves ...
plate tectonics review - Hicksville Public Schools
... 8. Why was the theory of continental drift rejected at first? ...
... 8. Why was the theory of continental drift rejected at first? ...
OCN 201 - SOEST
... longer keep up with subsidence • When temp. becomes too low for coral to grow efficiently… • Rate of volcanic edifice subsidence becomes greater than (upward) coral growth rate… • In Hawaii this occurs ~ 29oN (i.e., just N. of Kure Atoll) ...
... longer keep up with subsidence • When temp. becomes too low for coral to grow efficiently… • Rate of volcanic edifice subsidence becomes greater than (upward) coral growth rate… • In Hawaii this occurs ~ 29oN (i.e., just N. of Kure Atoll) ...
Handout 2-1.b, c, and d Name: Period
... The diagram below shows the interior layers of Earth. The layers in the diagram are representative of arrangement and are not drawn to scale. Use this diagram to match the layers 13-17. 13. mantle 14. lithosphere ...
... The diagram below shows the interior layers of Earth. The layers in the diagram are representative of arrangement and are not drawn to scale. Use this diagram to match the layers 13-17. 13. mantle 14. lithosphere ...
10.1 Volcanoes and Plate Tectonics Lecture Outline Origin of
... Once the sinking slab reaches a depth of about 100 to 150 kilometer, this water reduces the melting point of hot mantle rock low enough for melting to begin. The magma formed slowly migrates upward, forming volcanoes. Volcanoes from as convergent boundaries where two oceanic plates meet and where t ...
... Once the sinking slab reaches a depth of about 100 to 150 kilometer, this water reduces the melting point of hot mantle rock low enough for melting to begin. The magma formed slowly migrates upward, forming volcanoes. Volcanoes from as convergent boundaries where two oceanic plates meet and where t ...
Plate Tectonics Study Guide
... 3. What was Alfred Wegener’s Theory? That all the continents were once connected in a supercontinent called Pangaea 4. What evidence is there to support Wegener’s theory? List 3 things. 1. Fossils 2. Land Features 3. Climate change 5. Where do we find evidence of sea-floor spreading? At mid-ocean ri ...
... 3. What was Alfred Wegener’s Theory? That all the continents were once connected in a supercontinent called Pangaea 4. What evidence is there to support Wegener’s theory? List 3 things. 1. Fossils 2. Land Features 3. Climate change 5. Where do we find evidence of sea-floor spreading? At mid-ocean ri ...
NOTES Plate Tectonics
... 10. If new ocean floor is added all the time at mid-ocean ridges, why is the Earth not getting larger? Old ocean floor is subducted at continental margins. 11. Subduction - the process that occurs when ocean floor sinks beneath a deep ocean trench and returns to the mantle. ...
... 10. If new ocean floor is added all the time at mid-ocean ridges, why is the Earth not getting larger? Old ocean floor is subducted at continental margins. 11. Subduction - the process that occurs when ocean floor sinks beneath a deep ocean trench and returns to the mantle. ...
Earth System - Plate Tectonics
... Based on the current position of the continents, in what general direction did South America drift away Plate Tectonics Quiz from Name:Pangaea? Date: a. East Class: b. West c. North d. South 2. What evidence did Alfred Wegener use to support his theory of continental drift? a. Fossil discoveries b. ...
... Based on the current position of the continents, in what general direction did South America drift away Plate Tectonics Quiz from Name:Pangaea? Date: a. East Class: b. West c. North d. South 2. What evidence did Alfred Wegener use to support his theory of continental drift? a. Fossil discoveries b. ...
Study Guide: Unit ESS2-1 and ESS2
... 5. Pull-apart rift zones are generally associated with a divergent plate boundary. 6. The temperature below which magnetic material can retain a permanent magnetization is called the currie point. 7. A very long-lived magma source located deep in the mantle is called a hot spot. 8. Linear, magnetic ...
... 5. Pull-apart rift zones are generally associated with a divergent plate boundary. 6. The temperature below which magnetic material can retain a permanent magnetization is called the currie point. 7. A very long-lived magma source located deep in the mantle is called a hot spot. 8. Linear, magnetic ...
sci-10-18-1 - St John Brebeuf
... called slab pull. About 700 km down, the temperature and pressure soften the plate, recycling it into the mantle. ...
... called slab pull. About 700 km down, the temperature and pressure soften the plate, recycling it into the mantle. ...
8.4 Earth`s Layers
... Lithosphere – Earth’s outermost layer that consists of the crust and uppermost mantle. It forms a relatively cool, rigid shell Asthenosphere – located below the lithosphere. Relatively soft, and weaker layer. Warmer than the lithosphere ...
... Lithosphere – Earth’s outermost layer that consists of the crust and uppermost mantle. It forms a relatively cool, rigid shell Asthenosphere – located below the lithosphere. Relatively soft, and weaker layer. Warmer than the lithosphere ...
Plate tectonics, earthquakes, and volcanoes 1. Hypothesis that
... 27. A machine that is used to measure earthquake activity 28. A volcanic depression that forms a result of the collapse of the magma chamber roof 29. A place in the earth’s crust where magma burns through like a blow torch is known as a(example Hawaii): 30. The measure of the total amount energy rel ...
... 27. A machine that is used to measure earthquake activity 28. A volcanic depression that forms a result of the collapse of the magma chamber roof 29. A place in the earth’s crust where magma burns through like a blow torch is known as a(example Hawaii): 30. The measure of the total amount energy rel ...
esss09 - 4J Blog Server
... 9.4 Mechanisms of Plate Motions Convection currents in the mantle provide the basic driving forces for plate motions. • A convection current is the continuous flow that occurs in a fluid because of differences in density. • The hot, but solid rock of the mantle behaves in a plastic way—that is, it c ...
... 9.4 Mechanisms of Plate Motions Convection currents in the mantle provide the basic driving forces for plate motions. • A convection current is the continuous flow that occurs in a fluid because of differences in density. • The hot, but solid rock of the mantle behaves in a plastic way—that is, it c ...
Earth`s 3 Layers 2 Types of Crust 2 Mantle Regions 2 Core Regions
... 1. The main source of downward convection flow in the mantle is called ____. a. ridge-pull c. slab-push b. slab-pull d. ridge-push 2. The downward sliding characteristic of ridge-push is the result of ____. a. gravity c. paleomagnetism b. uneven heat distribution d. continental rifting 3. The therma ...
... 1. The main source of downward convection flow in the mantle is called ____. a. ridge-pull c. slab-push b. slab-pull d. ridge-push 2. The downward sliding characteristic of ridge-push is the result of ____. a. gravity c. paleomagnetism b. uneven heat distribution d. continental rifting 3. The therma ...
GEOL 2312 IGNEOUS AND METAMORPHIC PETROLOGY Lecture
... of a 2-layer dynamic mantle model in which the 660 km transition is a sufficient density barrier to separate lower mantle convection (arrows represent flow patterns) from upper mantle flow, largely a response to plate separation. The only significant things that can penetrate this barrier are vigoro ...
... of a 2-layer dynamic mantle model in which the 660 km transition is a sufficient density barrier to separate lower mantle convection (arrows represent flow patterns) from upper mantle flow, largely a response to plate separation. The only significant things that can penetrate this barrier are vigoro ...
Symposium in celebration of the work of Tony Watts University
... 9:15-10:45 Marcia McNutt, US National Academy of Sciences Plate flexure and mantle rheology Paul Wessel, University of Hawai`i at Manoa ...
... 9:15-10:45 Marcia McNutt, US National Academy of Sciences Plate flexure and mantle rheology Paul Wessel, University of Hawai`i at Manoa ...
Plate Tectonics Vocabulary Word Search
... ______________ current - The driving force of plate tectonics in which hot, plastic like material from the mantle rises to the lithosphere, moves horizontally, cools and sinks back to the mantle. ...
... ______________ current - The driving force of plate tectonics in which hot, plastic like material from the mantle rises to the lithosphere, moves horizontally, cools and sinks back to the mantle. ...
Mantle plume
A mantle plume is a mechanism proposed in 1971 to explain volcanic regions of the earth that were not thought to be explicable by the then-new theory of plate tectonics. Some such volcanic regions lie far from tectonic plate boundaries, for example, Hawaii. Others represent unusually large-volume volcanism, whether on plate boundaries, e.g. Iceland, or basalt floods such as the Deccan or Siberian traps.A mantle plume is posited to exist where hot rock nucleates at the core-mantle boundary and rises through the Earth's mantle becoming a diapir in the Earth's crust. The currently active volcanic centers are known as ""hot spots"". In particular, the concept that mantle plumes are fixed relative to one another, and anchored at the core-mantle boundary, was thought to provide a natural explanation for the time-progressive chains of older volcanoes seen extending out from some such hot spots, such as the Hawaiian–Emperor seamount chain.The hypothesis of mantle plumes from depth is not universally accepted as explaining all such volcanism. It has required progressive hypothesis-elaboration leading to variant propositions such as mini-plumes and pulsing plumes. Another hypothesis for unusual volcanic regions is the ""Plate model"". This proposes shallower, passive leakage of magma from the mantle onto the Earth's surface where extension of the lithosphere permits it, attributing most volcanism to plate tectonic processes, with volcanoes far from plate boundaries resulting from intraplate extension.