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Rock (geology)
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Wikipedia.org
Rock (geology) (Wikipedia.org)

In geology, rock is a naturally occurring aggregate of minerals and/or mineraloids. The Earth's lithosphere is made of rock. In general rocks are of three types, namely, igneous, sedimentary, and metamorphic. Petrology is the scientific study of rocks.

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Dianne Newman is exploring the deep connection between bacteria and rocks -- specifically, the possibility that some varieties of ancient microorganisms gave rise over millennia to vast mineral ...
42m 52s |
2 years ago
MIT World
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This program is divided into two major parts. In the first, viewers will discover why fossils are important to geology and how igneous, sedimentary and metamorphic rocks are formed. The second part ...
23m 19s |
a year ago
HowStuffWorks
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discovery
Find out what types of rocks can be found inside the earth. Igneous, sedimentary and metamorphic rocks all make their way to the surface. Learn more about rocks on Discovery Channel's "Assignment ...
2m 50s |
a year ago
HowStuffWorks
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Lecture Series on Engineering Geology by Prof.Debasis Roy , Department of Civil Engineering IIT Kharagpur. For more details on NPTEL visit http://nptel.iitm.ac.in
59m 53s |
a year ago
YouTube
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970
National Geographic
At "The Hellhole of Creation", scientists hope to uncover clues that will reveal how the Earth formed billions of years ago.
4 months ago
MySpace
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When magma or lava cools and solidifies, igneous rocks are formed. Several factors determine the type of igneous rock that is formed.
2m 10s |
a year ago
HowStuffWorks
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230
Exterior wouldn't fit.
9m 49s |
a year ago
YouTube
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4384
Discover what evolutionary geologists and geophysicists call "a tiny mystery"... microscopic scientific evidence that appears to undenyingly support the instantaneous creation of the earth's ...
33m 31s |
2 years ago
YouTube
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