Oceanic crust
... Basalt is much denser than the granite. Because of this the less dense continents ride on the denser oceanic plates. The Basalt is formed when hot material in the upper mantle is decompressed, allowing it to melt and form liquid magma, which cools off quickly. ...
... Basalt is much denser than the granite. Because of this the less dense continents ride on the denser oceanic plates. The Basalt is formed when hot material in the upper mantle is decompressed, allowing it to melt and form liquid magma, which cools off quickly. ...
Isostatic Adjustments
... in the rocks along a break it is called fracture. • When rocks do move at a break it is called a fault. ...
... in the rocks along a break it is called fracture. • When rocks do move at a break it is called a fault. ...
Anorthosite and the lower crust
... barrier. Re-Os isotope data brilliantly support a mafic lower crust origin, particularly in Rogaland where high Os isotopic ratios can only be accounted for by a mafic source, because there is no significantly older crust in SW Scandinavia (Stein et al., 1998; Schiellerup et al., ...
... barrier. Re-Os isotope data brilliantly support a mafic lower crust origin, particularly in Rogaland where high Os isotopic ratios can only be accounted for by a mafic source, because there is no significantly older crust in SW Scandinavia (Stein et al., 1998; Schiellerup et al., ...
Erosion with Bill Nye the Science Guy
... Erosion – the movement of sediment by wind, water, gravity, ice, and organisms. It often happens along with weathering. ...
... Erosion – the movement of sediment by wind, water, gravity, ice, and organisms. It often happens along with weathering. ...
Convergent Boundaries
... 1. List the geologic event(s) that can occur at each plate boundary. (What happens or is formed here?) • ____ & ____ @ Divergent Boundaries • ____ & ____ @ Convergent Boundaries • __________ @ Transform Boundaries ...
... 1. List the geologic event(s) that can occur at each plate boundary. (What happens or is formed here?) • ____ & ____ @ Divergent Boundaries • ____ & ____ @ Convergent Boundaries • __________ @ Transform Boundaries ...
Chapter 5
... changes in the earth’s crust occur because of changes in weight of some part of the crust. When parts of the crust become thicker and heavier, they will sink. If they become lighter and thinner, it will rise. ...
... changes in the earth’s crust occur because of changes in weight of some part of the crust. When parts of the crust become thicker and heavier, they will sink. If they become lighter and thinner, it will rise. ...
Earth Revealed Plate Dynamics Video Exercise
... 13. What mountain range is the volcanic rock type "Andesite" named after? Where is it located. 14. True or False: volcanism occurs at both divergent and convergent plate boundaries. 15. What type of plate boundary has caused uplift of the Himalayan Mountain range between India and China? 16. True or ...
... 13. What mountain range is the volcanic rock type "Andesite" named after? Where is it located. 14. True or False: volcanism occurs at both divergent and convergent plate boundaries. 15. What type of plate boundary has caused uplift of the Himalayan Mountain range between India and China? 16. True or ...
Earthquakes - SLC Geog A Level Blog
... (continental) Also the Philippines The oceanic plate is forced downwards as it is denser than the continental plate This results in a subduction zone An ocean trench forms too – (where the sea water is deeper here) Friction occurs and the force of the compression as the plates meet causes stresses i ...
... (continental) Also the Philippines The oceanic plate is forced downwards as it is denser than the continental plate This results in a subduction zone An ocean trench forms too – (where the sea water is deeper here) Friction occurs and the force of the compression as the plates meet causes stresses i ...
Answers - MrTubb
... 15. Earth's surface is constantly changing. Volcanoes erupt and form new crust. Lithospheric plate motions bend and crack old crust and cause earthquakes. Where do most of Earth's earthquakes and volcanoes occur? A. at the center of continental plates B. at the equator C. along hot spots in oceanic ...
... 15. Earth's surface is constantly changing. Volcanoes erupt and form new crust. Lithospheric plate motions bend and crack old crust and cause earthquakes. Where do most of Earth's earthquakes and volcanoes occur? A. at the center of continental plates B. at the equator C. along hot spots in oceanic ...
MST DQ Week 3 Name: 3/31/2014 1. During which season does
... A. Two continental plates moving away from each other, forming a rift valley B. Two oceanic plates rubbing against each other, forming a mid-ocean ridge C. Two continental plates colliding, forming a mountain range D. Two oceanic plates colliding, forming a volcanic arc Justification---_____________ ...
... A. Two continental plates moving away from each other, forming a rift valley B. Two oceanic plates rubbing against each other, forming a mid-ocean ridge C. Two continental plates colliding, forming a mountain range D. Two oceanic plates colliding, forming a volcanic arc Justification---_____________ ...
Rock Cycle homework
... Igneous rock is any rock that forms from magma or lava. The name “igneous” comes from the Latin word ignis, meaning “fire.” Igneous rocks are classified according to their origin, texture, and mineral composition. Extrusive rock is igneous rock formed from lava that erupted onto Earth’s surface. Bas ...
... Igneous rock is any rock that forms from magma or lava. The name “igneous” comes from the Latin word ignis, meaning “fire.” Igneous rocks are classified according to their origin, texture, and mineral composition. Extrusive rock is igneous rock formed from lava that erupted onto Earth’s surface. Bas ...
Regents Earth Science Curriculum Map
... classroom and laboratory. Safely and accurately use the following measurement tools: metric ruler and ...
... classroom and laboratory. Safely and accurately use the following measurement tools: metric ruler and ...
![Microsoft PowerPoint - file.in [jen pro \350ten\355]](http://s1.studyres.com/store/data/014313797_1-3833d9ab9e4bd89db59588751ef215f9-300x300.png)
Microsoft PowerPoint - file.in [jen pro \350ten\355]
... contain clear evidence of production by impact, including mineral grains showing evidence of shock metamorphism. In the mineral quartz the passage of a strong shock wave can cause dislocation of the grain's crystal ...
... contain clear evidence of production by impact, including mineral grains showing evidence of shock metamorphism. In the mineral quartz the passage of a strong shock wave can cause dislocation of the grain's crystal ...
N.HW101
... tens of kilometers. After that, the temperature increases more slowly, but steadily. Near the top of the crust, temperatures average around 20°C. At the bottom of the crust temperatures can be as high as 870°C. At the bottom of the mantle, temperatures can be 2,200°C. The temperature of the outer co ...
... tens of kilometers. After that, the temperature increases more slowly, but steadily. Near the top of the crust, temperatures average around 20°C. At the bottom of the crust temperatures can be as high as 870°C. At the bottom of the mantle, temperatures can be 2,200°C. The temperature of the outer co ...
4.3 PPT_EQ & Waves
... earthquakes by describing their effects on people, buildings, and the land surface in a given location. ...
... earthquakes by describing their effects on people, buildings, and the land surface in a given location. ...
Earth!!! - CanScience
... - Fossils of the same plants and animals have been found on continents that are oceans apart. - The same types of rocks and minerals have been found on continents that are oceans apart. - Magnetic orientation of rocks on the ocean floor …more on this later! ...
... - Fossils of the same plants and animals have been found on continents that are oceans apart. - The same types of rocks and minerals have been found on continents that are oceans apart. - Magnetic orientation of rocks on the ocean floor …more on this later! ...
Calcium in magmatic processes
... Ca-content of the bulk Earth is variously estimated to be 16.2-19.3 mg/g. Mid-ocean ridge basalts typically contain about 81 mg/g Ca. Calcium becomes a compatible element during crystallization of magmas once plagioclase and/or clinopyroxenes begin to crystallize, and during crustal melting. The Ca ...
... Ca-content of the bulk Earth is variously estimated to be 16.2-19.3 mg/g. Mid-ocean ridge basalts typically contain about 81 mg/g Ca. Calcium becomes a compatible element during crystallization of magmas once plagioclase and/or clinopyroxenes begin to crystallize, and during crustal melting. The Ca ...
First Hour Exam, Fall, 2006
... c. iron and magnesium silicate minerals at the top, and oxides at the bottom 5. The continental crust of the Earth is about how thick? a. 5-8 km c. 100-200 km b. 40-70 km d. 2900 km 6. The two most abundant elements, by weight, in the Earth's crust are a. iron and nickel c. oxygen and silicon b. iro ...
... c. iron and magnesium silicate minerals at the top, and oxides at the bottom 5. The continental crust of the Earth is about how thick? a. 5-8 km c. 100-200 km b. 40-70 km d. 2900 km 6. The two most abundant elements, by weight, in the Earth's crust are a. iron and nickel c. oxygen and silicon b. iro ...
Intrusive felsic-mafic net-veined complexes in north
... Mount ErIe Complex near Duchess, only very small amounts of intermediate hybrid rocks are present. The likelihood of voluminous andesitic and dacitic volcanic rocks resulting from assimilation of crystalline rocks or even glassy rocks, as suggested by Eichelberger (1974), by mafic magma in the upper ...
... Mount ErIe Complex near Duchess, only very small amounts of intermediate hybrid rocks are present. The likelihood of voluminous andesitic and dacitic volcanic rocks resulting from assimilation of crystalline rocks or even glassy rocks, as suggested by Eichelberger (1974), by mafic magma in the upper ...
Tectonic–climatic interaction
Tectonic–climatic interaction is the interrelationship between tectonic processes and the climate system. The tectonic processes in question include orogenesis, volcanism, and erosion, while relevant climatic processes include atmospheric circulation, orographic lift, monsoon circulation and the rain shadow effect. As the geological record of past climate changes over millions of years is sparse and poorly resolved, many questions remain unresolved regarding the nature of tectonic-climate interaction, although it is an area of active research by geologists and palaeoclimatologists.