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What type of rock forms the ocean floor?
wallpapercave.com
wallpapercave.com
What type of rock forms the ocean floor?
x
Metamorphic rocks make up a large part of the Earth's crust. They may be formed simply by being deep beneath the Earth's surface, subjected to high temperatures or pressure from the ocean, and/or the great pressure of the rock layers above them.
wallpapercave.com
Metamorphic rocks make up a large part of the Earth's crust. They may be formed simply by being deep beneath the Earth's surface, subjected to high temperatures or pressure from the ocean, and/or the great pressure of the rock layers above them.
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Where do all igneous rocks come from?
upload.wikimedia.org
upload.wikimedia.org
Where do all igneous rocks come from?
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Igneous rock is formed through the cooling and solidification of magma or lava. The magma can be derived from partial melts of existing rocks in either a planet's mantle or crust.
upload.wikimedia.org
Igneous rock is formed through the cooling and solidification of magma or lava. The magma can be derived from partial melts of existing rocks in either a planet's mantle or crust.
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What is the thickest layer of the Earth called?
i.ytimg.com
i.ytimg.com
What is the thickest layer of the Earth called?
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The mantle comprises about 83% of the Earth’s volume. It is divided into several layers, based on different seismological characteristics. In the mantle, temperatures range between 500 to 900 °C (932 to 1,652 °F) at the upper boundary with the crust; to over 4,000 °C (7,230 °F) at the boundary with the core.
i.ytimg.com
The mantle comprises about 83% of the Earth’s volume. It is divided into several layers, based on different seismological characteristics. In the mantle, temperatures range between 500 to 900 °C (932 to 1,652 °F) at the upper boundary with the crust; to over 4,000 °C (7,230 °F) at the boundary with the core.
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Which of these is the densest layer of the Earth?
ichef.bbci.co.uk
ichef.bbci.co.uk
Which of these is the densest layer of the Earth?
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The temperature in the inner core is about 5000 – 6000 °C (9032 – 10832 °F). It is made from iron and nickel metals, and because of the high pressure, the inner core is solid. This high pressure and the dense metals at the core make its density about 13 g/cm3.
ichef.bbci.co.uk
The temperature in the inner core is about 5000 – 6000 °C (9032 – 10832 °F). It is made from iron and nickel metals, and because of the high pressure, the inner core is solid. This high pressure and the dense metals at the core make its density about 13 g/cm3.
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Minerals are not...
2.bp.blogspot.com
2.bp.blogspot.com
Minerals are not...
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To be a mineral, a substance must meet five requirements: naturally occurring, inorganic, solid, and have a definite chemical composition and ordered internal structure.
2.bp.blogspot.com
To be a mineral, a substance must meet five requirements: naturally occurring, inorganic, solid, and have a definite chemical composition and ordered internal structure.
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Which of these is a "mafic" rock?
www.warrenphotographic.co.uk
www.warrenphotographic.co.uk
Which of these is a "mafic" rock?
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Mafic rocks are silicate minerals or igneous rocks that are rich in magnesium and iron, and carriers of magnesium and ferric.
www.warrenphotographic.co.uk
Mafic rocks are silicate minerals or igneous rocks that are rich in magnesium and iron, and carriers of magnesium and ferric.
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Which of these is a metamorphic rock?
opentextbc.ca
opentextbc.ca
Which of these is a metamorphic rock?
x
A metamorphic rock is a result of a transformation of a pre-existing rock. The original rock is subjected to very high heat and pressure, which cause obvious physical and/or chemical changes. Marble forms through the metamorphism of limestone.
opentextbc.ca
A metamorphic rock is a result of a transformation of a pre-existing rock. The original rock is subjected to very high heat and pressure, which cause obvious physical and/or chemical changes. Marble forms through the metamorphism of limestone.
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Where do mid-ocean ridges form?
i.ytimg.com
i.ytimg.com
Where do mid-ocean ridges form?
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In plate tectonics, a divergent boundary is a linear feature that exists between two tectonic plates that are moving away from each other. Divergent boundaries within continents initially produce rifts which eventually become rift valleys. Most active divergent plate boundaries occur between oceanic plates and exist as mid-oceanic ridges.
i.ytimg.com
In plate tectonics, a divergent boundary is a linear feature that exists between two tectonic plates that are moving away from each other. Divergent boundaries within continents initially produce rifts which eventually become rift valleys. Most active divergent plate boundaries occur between oceanic plates and exist as mid-oceanic ridges.
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When two tectonic plates collide, what may form?
i.huffpost.com
i.huffpost.com
When two tectonic plates collide, what may form?
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Many mountains were formed as a result of Earth's tectonic plates smashing together. The Earth's crust is made up of multiple tectonic plates that still move today as a result of geologic activity below the surface.
i.huffpost.com
Many mountains were formed as a result of Earth's tectonic plates smashing together. The Earth's crust is made up of multiple tectonic plates that still move today as a result of geologic activity below the surface.
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What is the temperature below which iron minerals remains magnetic and above which they do not remain magnetic?
haf9jn6not-flywheel.netdna-ssl.com
haf9jn6not-flywheel.netdna-ssl.com
What is the temperature below which iron minerals remains magnetic and above which they do not remain magnetic?
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Curie point, is the temperature at which certain materials lose their permanent magnetic properties, to be replaced by induced magnetism. The Curie temperature is named after Pierre Curie, who showed that magnetism was lost at a critical temperature.
haf9jn6not-flywheel.netdna-ssl.com
Curie point, is the temperature at which certain materials lose their permanent magnetic properties, to be replaced by induced magnetism. The Curie temperature is named after Pierre Curie, who showed that magnetism was lost at a critical temperature.
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What are the most common rock-forming minerals?
www.lolwot.com
www.lolwot.com
What are the most common rock-forming minerals?
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Silicates are the largest and most important class of rock-forming minerals and make up approximately 90 percent of the Earth's crust.
www.lolwot.com
Silicates are the largest and most important class of rock-forming minerals and make up approximately 90 percent of the Earth's crust.
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The San Francisco Earthquake was caused by activity on what fault line?
www.archives.gov
www.archives.gov
The San Francisco Earthquake was caused by activity on what fault line?
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The San Andreas Fault System is estimated to be at least 1300 km long and is a large fault line that affects most of California. The fault system is named after the San Andreas Lake which can be found in the middle of two moving plates.
www.archives.gov
The San Andreas Fault System is estimated to be at least 1300 km long and is a large fault line that affects most of California. The fault system is named after the San Andreas Lake which can be found in the middle of two moving plates.
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