Document
... • Lithosphere composed of the crust and upper mantle forms the Earth’s tectonic plates ...
... • Lithosphere composed of the crust and upper mantle forms the Earth’s tectonic plates ...
Continental drift and plate tectonics
... • Zone of the Earth’s mantle lying beneath the lithosphere, believed to be much hotter and more fluid than the lithosphere. ...
... • Zone of the Earth’s mantle lying beneath the lithosphere, believed to be much hotter and more fluid than the lithosphere. ...
Class notes ()
... What do we know about the shape of magmatic bodies? Are they sheets? Blobs? Spheres? ...
... What do we know about the shape of magmatic bodies? Are they sheets? Blobs? Spheres? ...
EPSC 240 – Fall 2016 C. Rowe – McGill University Volcanic Rocks
... Texture of volcanic/extrusive rocks Volcanic rocks have some distinctive textural characteristics that distinguish them from their intrusive counterparts. The matrix (often called groundmass) of the rocks is usually very fine-grained, to the point of grains being invisible even with a hand lens (aph ...
... Texture of volcanic/extrusive rocks Volcanic rocks have some distinctive textural characteristics that distinguish them from their intrusive counterparts. The matrix (often called groundmass) of the rocks is usually very fine-grained, to the point of grains being invisible even with a hand lens (aph ...
Evidence of Plate Tectonics
... from the Aleutian trench to Hawaii – age of features increase as you move away from Hawaii ◦ Therefore: The plates are moving over the hot spot and forming new volcanic features. ...
... from the Aleutian trench to Hawaii – age of features increase as you move away from Hawaii ◦ Therefore: The plates are moving over the hot spot and forming new volcanic features. ...
SEA-FLOOR SPREADING
... In the 1950’s and early 1960’s detailed study of the oceans revealed the following surprising information: Detailed bathymetric (depth) studies showed that there was an extensive submarine ridge system that extended around the globe. These became known as MID-OCEAN RIDGES. Sampling by dredging sh ...
... In the 1950’s and early 1960’s detailed study of the oceans revealed the following surprising information: Detailed bathymetric (depth) studies showed that there was an extensive submarine ridge system that extended around the globe. These became known as MID-OCEAN RIDGES. Sampling by dredging sh ...
Plate Tectonic Vocabulary
... Mid-ocean ridge: A chain of mountains on the ocean floor. New ocean floor forms at the midocean ridge where the sea floor is spreading. Pangaea: A supercontinent that existed about 200 million years ago. Pangaea broke apart into several continents. Rifting: The process by which magma rises to fill t ...
... Mid-ocean ridge: A chain of mountains on the ocean floor. New ocean floor forms at the midocean ridge where the sea floor is spreading. Pangaea: A supercontinent that existed about 200 million years ago. Pangaea broke apart into several continents. Rifting: The process by which magma rises to fill t ...
Volcanoes and Other Igneous Activity
... sufficient to melt rock in the lower crust and upper mantle • Additional heat is generated by - friction in subduction zones - crustal rocks heated during subduction - rising, hot mantle rocks ...
... sufficient to melt rock in the lower crust and upper mantle • Additional heat is generated by - friction in subduction zones - crustal rocks heated during subduction - rising, hot mantle rocks ...
Study Guide: Earth has Several Layers: (Test on Tuesday 20, 2011)
... Study Guide: Earth has Several Layers: (Test on Tuesday 20, 2011) 8. Define all of the following vocabulary words: inner core, outer core, mantle, crust, lithosphere, anthenosphere, and tectonic plate. 9. Be able to draw the earth and its many layers along with labeling them. 10. Know the characteri ...
... Study Guide: Earth has Several Layers: (Test on Tuesday 20, 2011) 8. Define all of the following vocabulary words: inner core, outer core, mantle, crust, lithosphere, anthenosphere, and tectonic plate. 9. Be able to draw the earth and its many layers along with labeling them. 10. Know the characteri ...
WATERS Mini Lesson
... Learning Outcomes: Knowledge: Know that plates move, describe what Pangaea was and the theory of continental drift. Be able to explain the evidence that geologist have found that supports continental drift. Skill: Identify the tectonic plates. Be able to explain that the plates do not just include t ...
... Learning Outcomes: Knowledge: Know that plates move, describe what Pangaea was and the theory of continental drift. Be able to explain the evidence that geologist have found that supports continental drift. Skill: Identify the tectonic plates. Be able to explain that the plates do not just include t ...
Plate Tectonics Review Key
... 25. What is the ‘conveyor belt’ for the lithospheric plates? Convection currents which are located in the upper mantle. 26. What is the asthenosphere? It is the ‘plastic-like’ layer in the upper mantle. The lithospheric plates ride atop the asthenosphere. 27. Refer to your plate tectonics map. Which ...
... 25. What is the ‘conveyor belt’ for the lithospheric plates? Convection currents which are located in the upper mantle. 26. What is the asthenosphere? It is the ‘plastic-like’ layer in the upper mantle. The lithospheric plates ride atop the asthenosphere. 27. Refer to your plate tectonics map. Which ...
Sea-Floor Spreading
... The theory of plate tectonics says that the lithosphere is broken into pieces called tectonic plates. The plates have a thin layer of crust above a layer of cool hard rocks. Most of them have both continental and oceanic crust. These tectonic plates fit together like joints made by a carpenter. Ther ...
... The theory of plate tectonics says that the lithosphere is broken into pieces called tectonic plates. The plates have a thin layer of crust above a layer of cool hard rocks. Most of them have both continental and oceanic crust. These tectonic plates fit together like joints made by a carpenter. Ther ...
Using 2D-Axisymmetric Finite Element Models to understand the
... the Intrusion ● Hot zone model shows intrusion bodies at various levels in the lithosphere. ● Density contrast hence buoyancy force will vary based on where the bodies are emplaced. ...
... the Intrusion ● Hot zone model shows intrusion bodies at various levels in the lithosphere. ● Density contrast hence buoyancy force will vary based on where the bodies are emplaced. ...
Plate Tectonics
... – Earth’s magnetic field changes! Reverses! Every so often. . . – As new igneous rock forms, magnetic minerals will line up with Earth’s magnetic field. ...
... – Earth’s magnetic field changes! Reverses! Every so often. . . – As new igneous rock forms, magnetic minerals will line up with Earth’s magnetic field. ...
Plate Tectonics PowerPoint
... Pieces of Earth’s Lithosphere are in slow, constant motion, driven by convection currents in the mantle. ...
... Pieces of Earth’s Lithosphere are in slow, constant motion, driven by convection currents in the mantle. ...
Essay- choose ONE
... ___The theory that states all continents were once a part of one giant landmass, split apart and slowly moved to there present positions. ___The theory that Earth’s crust and upper mantle is broken up into sections. ___The process that explains how continents move and where new crust is made. ...
... ___The theory that states all continents were once a part of one giant landmass, split apart and slowly moved to there present positions. ___The theory that Earth’s crust and upper mantle is broken up into sections. ___The process that explains how continents move and where new crust is made. ...
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.