File
... [Task Two] Copy the following paragraph into your jotter and fill in the blanks: The earth was formed _____________ million years ago. Since then it has been slowly cooling down and a thin ________________ has formed all round the outside. The crust is not one piece; instead it is broken into severa ...
... [Task Two] Copy the following paragraph into your jotter and fill in the blanks: The earth was formed _____________ million years ago. Since then it has been slowly cooling down and a thin ________________ has formed all round the outside. The crust is not one piece; instead it is broken into severa ...
October 10, 2011
... a. The Theory of PT explains the formation, movement, and subduction of Earth’s plates. 2. Gravity helps pull a subducting plate down into the mantle. 3. As plates move they collide, pull apart, and grind past each other creating changes in Earth’s surface including volcanoes, mountain ranges, and d ...
... a. The Theory of PT explains the formation, movement, and subduction of Earth’s plates. 2. Gravity helps pull a subducting plate down into the mantle. 3. As plates move they collide, pull apart, and grind past each other creating changes in Earth’s surface including volcanoes, mountain ranges, and d ...
PlateTectonics03
... Examples found on Earth: Himalayas, Ring of Fire, Andes Mountains, Marianas Trench ...
... Examples found on Earth: Himalayas, Ring of Fire, Andes Mountains, Marianas Trench ...
Plate Tectonic Theory
... • Subduction of higher density (mafic) oceanic lithosphere beneath lower density (felsic) continental lithosphere – Formation of magma in the mantle wedge – Formation of a continental margin volcanic arc on the overriding continental lithosphere • Examples: Cascade Range, Andean Range ...
... • Subduction of higher density (mafic) oceanic lithosphere beneath lower density (felsic) continental lithosphere – Formation of magma in the mantle wedge – Formation of a continental margin volcanic arc on the overriding continental lithosphere • Examples: Cascade Range, Andean Range ...
Composition of Earth – Encarta
... plates. These are constantly in movement, driven by the flow of heat from the interior. The plates move like conveyor belts, being drawn downward into the crust at some margins and being replaced with rising molten rock at others. Continents are carried on the plates, at rates of movement measured i ...
... plates. These are constantly in movement, driven by the flow of heat from the interior. The plates move like conveyor belts, being drawn downward into the crust at some margins and being replaced with rising molten rock at others. Continents are carried on the plates, at rates of movement measured i ...
Studyguide_PTtest
... ~ The theory Harry Hess put forth – What did he find? What other evidence added to the idea that the seafloor was spreading? (new crust formed at mid-ocean ridge – younger closer to ridge, older farther away; trenches & subduction zones; magnetic striping of seafloor) ~ The 4 basic layers of the Ear ...
... ~ The theory Harry Hess put forth – What did he find? What other evidence added to the idea that the seafloor was spreading? (new crust formed at mid-ocean ridge – younger closer to ridge, older farther away; trenches & subduction zones; magnetic striping of seafloor) ~ The 4 basic layers of the Ear ...
Igneous Rock Questions
... mineral grains (crystals) in the rock is known as _____________________. The _____________________ of cooling of the magma determines the size of the mineral grains. If the cooling of magma is slow, the chemical compounds within the magma had sufficient time to develop into _____________________ and ...
... mineral grains (crystals) in the rock is known as _____________________. The _____________________ of cooling of the magma determines the size of the mineral grains. If the cooling of magma is slow, the chemical compounds within the magma had sufficient time to develop into _____________________ and ...
Earth Science Study Guide
... 1. _______________________________________________ are natural non-living substances that make up rocks. 2. There are over 3,000 minerals found on earth, yet only about 30 minerals are common in rocks. They are called the ______________________________________________________________________________ ...
... 1. _______________________________________________ are natural non-living substances that make up rocks. 2. There are over 3,000 minerals found on earth, yet only about 30 minerals are common in rocks. They are called the ______________________________________________________________________________ ...
Classification of Igneous Rocks
... XXX indicates those rocks that do not actually occur. Ultramafic rocks are always phaneritic because they cool at too high a temperature to escape the crust as liquid. Glassy rocks only occur with felsic content because all the other magmas are too hot, and therefore too thin, to preclude crystalliz ...
... XXX indicates those rocks that do not actually occur. Ultramafic rocks are always phaneritic because they cool at too high a temperature to escape the crust as liquid. Glassy rocks only occur with felsic content because all the other magmas are too hot, and therefore too thin, to preclude crystalliz ...
learning targets for
... Rock Cycle through any form that you wish. It can be a diorama, a project display board, a power point, or anything else that works for you. The display should be a teaching tool, easily to understand and a quality piece of work. ...
... Rock Cycle through any form that you wish. It can be a diorama, a project display board, a power point, or anything else that works for you. The display should be a teaching tool, easily to understand and a quality piece of work. ...
Study Guide (6.E.2.2)
... E. this is the steep-sided canyon in the bottom of the ocean F. this occurs at mid-ocean ridges where new oceanic crust is formed and then slowly moves away from the ridge G. this is an area on Earth where the lithospheric plates are moving away from each other, forming an extensive system of fractu ...
... E. this is the steep-sided canyon in the bottom of the ocean F. this occurs at mid-ocean ridges where new oceanic crust is formed and then slowly moves away from the ridge G. this is an area on Earth where the lithospheric plates are moving away from each other, forming an extensive system of fractu ...
Volcanoes and Other Igneous Activities Chapter 6
... – Less pressure on underlying rocks – Results in partial melting of mantle – Large quantities of basaltic magma are produced ...
... – Less pressure on underlying rocks – Results in partial melting of mantle – Large quantities of basaltic magma are produced ...
The Plate Tectonics Theory
... ____________________ are in constant, slow motion, driven by ___________________________________ in the mantle. The lithosphere is broken into large, continent sized sections called __________________________. There are about 30 tectonic plates on the Earth’s surface The plates of the lithosphere fl ...
... ____________________ are in constant, slow motion, driven by ___________________________________ in the mantle. The lithosphere is broken into large, continent sized sections called __________________________. There are about 30 tectonic plates on the Earth’s surface The plates of the lithosphere fl ...
Earthquakes, Volcanoes & The Ring of Fire
... Ring of Fire- the same belt in which many of Earth’s volcanoes form. Focus, Epicenter Animation ...
... Ring of Fire- the same belt in which many of Earth’s volcanoes form. Focus, Epicenter Animation ...
Dynamic Earth Interactive: Plate Tectonics Grade 8 Earth Science
... 10. What evidence did Wegner find that supports the hypothesis that the Earth’s continents were once joined in a single large landmass? ...
... 10. What evidence did Wegner find that supports the hypothesis that the Earth’s continents were once joined in a single large landmass? ...
Plate Boundaries Notes - Coventry Local Schools
... Plate tectonics – the theory that the Earth’s lithosphere is divided into ______________________________ _________________________________________________________ around on top of the asthenosphere. ...
... Plate tectonics – the theory that the Earth’s lithosphere is divided into ______________________________ _________________________________________________________ around on top of the asthenosphere. ...
Plate Tectonics PPT 13-14
... Oceanic-to-Continental Convergent Boundaries • The more dense __oceanic_____ crust subducts under the less dense ____continental_______ crust. • Characteristics include: - Trench at subduction zone ...
... Oceanic-to-Continental Convergent Boundaries • The more dense __oceanic_____ crust subducts under the less dense ____continental_______ crust. • Characteristics include: - Trench at subduction zone ...
Chapter 14 Resource: Plate Tectonics
... 1. The hypothesis that continents move slowly is called continental ______. 2. All continents once might have been connected in a large landmass called ______. 3. The cycle of heating, rising, cooling, and sinking is a ______ current. 4. Just below Earth’s crust is the ______. 5. The crust and part ...
... 1. The hypothesis that continents move slowly is called continental ______. 2. All continents once might have been connected in a large landmass called ______. 3. The cycle of heating, rising, cooling, and sinking is a ______ current. 4. Just below Earth’s crust is the ______. 5. The crust and part ...
![The structure of the earth and plate tectonics powerpoint[1].](http://s1.studyres.com/store/data/000675818_1-0c942579df7b5fb5f3e05388b631188c-300x300.png)
The structure of the earth and plate tectonics powerpoint[1].
... plates that make up the crust move In the mantle, temperatures range between 500 to 900 °C A convection current is made when the cold magma and hot magma move along each other, the warmer magma can move up, and the cold down, this is how the current is made Why is the mantle hotter than the crust? W ...
... plates that make up the crust move In the mantle, temperatures range between 500 to 900 °C A convection current is made when the cold magma and hot magma move along each other, the warmer magma can move up, and the cold down, this is how the current is made Why is the mantle hotter than the crust? W ...
plate tectonics notes File
... composed of several rigid, large plates that move relative to one another by sliding on a weak layer, the asthenosphere in the upper mantle; continents and ocean basins are passive riders on these plates. This is a unifying concept of geology developed after WWII and only accepted during the 1960s! ...
... composed of several rigid, large plates that move relative to one another by sliding on a weak layer, the asthenosphere in the upper mantle; continents and ocean basins are passive riders on these plates. This is a unifying concept of geology developed after WWII and only accepted during the 1960s! ...
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.