Plate Tectonics PPT 13-14
... • There are three types of convergent boundaries: 1) Oceanic-to-Continental 2) Oceanic-to-Oceanic 3) Continental-to-Continental ...
... • There are three types of convergent boundaries: 1) Oceanic-to-Continental 2) Oceanic-to-Oceanic 3) Continental-to-Continental ...
Melting of the mantle
... Altered oceanic crust begins to dehydrate at depths ~ 50 km or less, as chlorite, phengite, and other hydrous phyllosilicates decompose. Further dehydration takes place at greater depths as other hydrous phases become unstable, including amphibole at about 3 GPa. The slab crust is successively co ...
... Altered oceanic crust begins to dehydrate at depths ~ 50 km or less, as chlorite, phengite, and other hydrous phyllosilicates decompose. Further dehydration takes place at greater depths as other hydrous phases become unstable, including amphibole at about 3 GPa. The slab crust is successively co ...
Inside the Earth
... • Chunks of material collided and stayed together, (Heat from these collisions can be on the order of 10,000 kelvins about 18,000 degrees Fahrenheit). • Friction, when denser core material sinks • Decay of radioactive elements, mostly uranium and thorium according to physicists. ...
... • Chunks of material collided and stayed together, (Heat from these collisions can be on the order of 10,000 kelvins about 18,000 degrees Fahrenheit). • Friction, when denser core material sinks • Decay of radioactive elements, mostly uranium and thorium according to physicists. ...
Hawaii Hotspot (Crustal Plate Movement)
... Movement of the Pacific plate over the Hawaiian Hot Spot: The idea behind plate tectonics is that the crustal plates are moving with respect to one another over geologic time. The rates of movement of crustal plates can be determined by using data from the plate margins along the mid-ocean ridges, o ...
... Movement of the Pacific plate over the Hawaiian Hot Spot: The idea behind plate tectonics is that the crustal plates are moving with respect to one another over geologic time. The rates of movement of crustal plates can be determined by using data from the plate margins along the mid-ocean ridges, o ...
Seismic anisotropy measured at the scale of a continent: Australia
... surface wave tomographic studies, the average time span of recording did not exceed 6 months, which is rather limited for shear wave splitting analyses. The data set however provides a full continental scale survey, data being recorded at 190 sites spread out all over the continent. The complexity o ...
... surface wave tomographic studies, the average time span of recording did not exceed 6 months, which is rather limited for shear wave splitting analyses. The data set however provides a full continental scale survey, data being recorded at 190 sites spread out all over the continent. The complexity o ...
Self-consistent generation of continental crust in global mantle
... ETH Zurich, Institute of Geophysics, Department of Earth Sciences, Zurich, Switzerland ([email protected]) ...
... ETH Zurich, Institute of Geophysics, Department of Earth Sciences, Zurich, Switzerland ([email protected]) ...
Oreo Cookies and Plate Tectonics
... a builder or architect. Plate tectonics suggests that large features on Earth’s surface, such as continents, ocean basins, and mountain ranges, result from interactions along the edges of large plates of Earth’s outer shell. This outer shell is called the lithosphere from the Greek “lithos,” meaning ...
... a builder or architect. Plate tectonics suggests that large features on Earth’s surface, such as continents, ocean basins, and mountain ranges, result from interactions along the edges of large plates of Earth’s outer shell. This outer shell is called the lithosphere from the Greek “lithos,” meaning ...
Earth Layers Foldable
... different layers. The crust is the layer that you live on, and it is the most widely studied and understood. The mantle is much hotter and has the ability to flow. The outer core and inner core are even hotter with pressures so great you would be squeezed into a ball smaller than a marble if you wer ...
... different layers. The crust is the layer that you live on, and it is the most widely studied and understood. The mantle is much hotter and has the ability to flow. The outer core and inner core are even hotter with pressures so great you would be squeezed into a ball smaller than a marble if you wer ...
boldly going deeper into earth
... Indian (cold) and Eurasian (hot) plates as markers, these exciting new images of the crust and mantle underlying this region show that the Indian Plate may be sliding under Eurasia so rapidly that its leading edge is folding back on itself, pushing deeper into the mantle — a process scientists would ...
... Indian (cold) and Eurasian (hot) plates as markers, these exciting new images of the crust and mantle underlying this region show that the Indian Plate may be sliding under Eurasia so rapidly that its leading edge is folding back on itself, pushing deeper into the mantle — a process scientists would ...
Unlocking the Secrets of the Rocky Planets
... This plate-like character appears when a zone of low viscosity (blue) is specified just below the top thermal boundary layer. In the Earth such a zone of reduced viscosity exists in this region almost certainly because of the presence of water. The contorted red isosurface in the deeper portion of t ...
... This plate-like character appears when a zone of low viscosity (blue) is specified just below the top thermal boundary layer. In the Earth such a zone of reduced viscosity exists in this region almost certainly because of the presence of water. The contorted red isosurface in the deeper portion of t ...
Plate Tectonics - East Hanover Township School District
... Earth’s Layers The Earth's rocky outer crust solidified billions of years ago, soon after the Earth formed. This crust is not a solid shell; it is broken up into huge, thick plates that drift atop the soft, underlying mantle. ...
... Earth’s Layers The Earth's rocky outer crust solidified billions of years ago, soon after the Earth formed. This crust is not a solid shell; it is broken up into huge, thick plates that drift atop the soft, underlying mantle. ...
tectonics, volcanism and seismicity: issues of paragenetic relation
... eruptive products spanning compositions from basalt to rhyolite. Andesite volcanism dominated whereas basic volcanism from mantle recharge and acid volcanism associated with crustal magmatic chambers were coexistent. The KCS abyssal structure is a system of magmatic chambers of different depths, act ...
... eruptive products spanning compositions from basalt to rhyolite. Andesite volcanism dominated whereas basic volcanism from mantle recharge and acid volcanism associated with crustal magmatic chambers were coexistent. The KCS abyssal structure is a system of magmatic chambers of different depths, act ...
The Structure of the Earth and Plate Tectonics
... • The Earth’s crust is divided into 12 major plates which are moved in various directions. • This plate motion causes them to collide, pull apart, or scrape against each other. • Each type of interaction causes a characteristic set of Earth structures or “tectonic” features. • The word, tectonic, re ...
... • The Earth’s crust is divided into 12 major plates which are moved in various directions. • This plate motion causes them to collide, pull apart, or scrape against each other. • Each type of interaction causes a characteristic set of Earth structures or “tectonic” features. • The word, tectonic, re ...
Powerpoint template for scientific poster
... deflected further by the thick margin of North America. A further difficulty lies in the fact that it is hard to explain why the same mantle plume that is causing rhyolitic activity at today’s Yellowstone National Park, spit out a tremendous amount of basalt across the Columbia Plateau. Apparently, ...
... deflected further by the thick margin of North America. A further difficulty lies in the fact that it is hard to explain why the same mantle plume that is causing rhyolitic activity at today’s Yellowstone National Park, spit out a tremendous amount of basalt across the Columbia Plateau. Apparently, ...
Click here for notes to put into foldable.
... the layer that you live on, and it is the most widely studied and understood. The mantle is much hotter and has the ability to flow. The outer core and inner core are even hotter with pressures so great you would be squeezed into a ball smaller than a marble if you were able to go to the center of t ...
... the layer that you live on, and it is the most widely studied and understood. The mantle is much hotter and has the ability to flow. The outer core and inner core are even hotter with pressures so great you would be squeezed into a ball smaller than a marble if you were able to go to the center of t ...
Plate Tectonic, Earthquakes, and Volcanoes Test Review
... Asthenosphere Mesosphere 4. Who discovered the theory of continental drift? When did he do this? Alfred Wegener (early 1900’s) 5. What are the three pieces of evidence that he used to support his theory? Give examples. 1. Landforms from other continents fit well together like puzzle pieces (South Am ...
... Asthenosphere Mesosphere 4. Who discovered the theory of continental drift? When did he do this? Alfred Wegener (early 1900’s) 5. What are the three pieces of evidence that he used to support his theory? Give examples. 1. Landforms from other continents fit well together like puzzle pieces (South Am ...
mantle - National Geographic
... Lithosphere. The thin outermost shell of the upper mantle is similar to the crust, though cooler and more rigid. Together with the crust, this layer is called the Earth’s lithosphere. Asthenosphere. The lithosphere is actually broken up into several large pieces, or plates. They “float” on a softer ...
... Lithosphere. The thin outermost shell of the upper mantle is similar to the crust, though cooler and more rigid. Together with the crust, this layer is called the Earth’s lithosphere. Asthenosphere. The lithosphere is actually broken up into several large pieces, or plates. They “float” on a softer ...
Unit VI: Solid Earth Circulation
... Earthquakes are the result of plate motion: The plates move relative to each other at average speeds of a few centimeters per year. As a result of friction between the plates, there are alternating periods of stasis (during which stresses build) and periods of movement (when they are released) both ...
... Earthquakes are the result of plate motion: The plates move relative to each other at average speeds of a few centimeters per year. As a result of friction between the plates, there are alternating periods of stasis (during which stresses build) and periods of movement (when they are released) both ...
Quiz 4: Transform faults and Polar Wander (Ch. 4
... 1. Typical magnetic stripes on the seafloor may be about 10-20 km wide. What factors control this width? spreading rate, duration of magnetic field stability or frequency of reversals ...
... 1. Typical magnetic stripes on the seafloor may be about 10-20 km wide. What factors control this width? spreading rate, duration of magnetic field stability or frequency of reversals ...
File - Hoblitzell`s Science Spot
... TYPES OF ERUPTIONS 1.FISSURE ERUPTIONS Occur at long, narrow fractures in crust. Most occur on ocean floor EX: along MORs – lava cools away from the fissure forming pillow basalts ...
... TYPES OF ERUPTIONS 1.FISSURE ERUPTIONS Occur at long, narrow fractures in crust. Most occur on ocean floor EX: along MORs – lava cools away from the fissure forming pillow basalts ...
Earth Science, 12e (Tarbuck/Lutgens)
... A) Earth's magnetic field originates in the outer core. B) Earth's diameter has been essentially constant over time. C) Radioactive decay slows down at the extreme pressures of the inner core. D) Earth's ocean basins are very old and stable features. 95) The modern-day Red Sea is explained by plate ...
... A) Earth's magnetic field originates in the outer core. B) Earth's diameter has been essentially constant over time. C) Radioactive decay slows down at the extreme pressures of the inner core. D) Earth's ocean basins are very old and stable features. 95) The modern-day Red Sea is explained by plate ...
the dynamic crust - Discover Earth Science
... 7. Sea Floor Spreading explains several other features of the ocean floor: a. island arc systems - crescent shaped series of volcanic islands located near zones of subduction 1) molten material from melting ocean plates rises back to the surface 2) Japan and the Aleutian Islands are good examples of ...
... 7. Sea Floor Spreading explains several other features of the ocean floor: a. island arc systems - crescent shaped series of volcanic islands located near zones of subduction 1) molten material from melting ocean plates rises back to the surface 2) Japan and the Aleutian Islands are good examples of ...
Mantle Origin for Stress Concentration in the New Madrid Seismic
... mantle. Our images span several Proterozoic and early Cambrian rift zones (MidContinent Rift, Rough Creek Graben – Rome trough, Birmingham trough, Southern Oklahoma Aulacogen, and Reelfoot Rift). While ancient rifts are generally associated with low crustal velocity because of the presence of thick ...
... mantle. Our images span several Proterozoic and early Cambrian rift zones (MidContinent Rift, Rough Creek Graben – Rome trough, Birmingham trough, Southern Oklahoma Aulacogen, and Reelfoot Rift). While ancient rifts are generally associated with low crustal velocity because of the presence of thick ...
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.