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Geology (from Greek γη- (ge-, "the earth") and λογος (logos, "word", "reason")) is the science and study of the solid matter of a celestial body, its composition, structure, physical properties, history and the processes that shape it. It is one of the Earth sciences. Geologists have helped establish the age of the Earth at about 4.6 billion (4.6x109) years, and have determined that the Earth's lithosphere, which includes the crust, is fragmented into tectonic plates that move over a rheic upper mantle (asthenosphere) via processes that are collectively referred to as plate tectonics. Geologists help locate and manage the earth's natural resources, such as petroleum and coal, as well as metals such as iron, copper, and uranium. Additional economic interests include gemstones and many minerals such as asbestos, perlite, mica, phosphates, zeolites, clay, pumice, quartz, and silica, as well as elements such as sulphur, chlorine, and helium.
Astrogeology refers to the application of geologic principles to other bodies of the solar system. However, specialised terms such as selenology (studies of the Moon), areology (of Mars), etc., are also in use.
The word "geology" was first used by Jean-André Deluc in the year 1778 and introduced as a fixed term by Horace-Bénédict de Saussure in the year 1779. An older meaning of the word was first used by Richard de Bury. He used it to distinguish between earthly and theological jurisprudence.
More on [ Geology ]
@heartbursts oh yeah. I forgot GEOLOGY ROCKS! :D
JavaJunky (JavaJunky) Sat, 02 Jan 2010 08:02:19 -0000
@heartbursts oh yeah. I forgot GEOLOGY ROCKS! :D
@heartbursts blah blah blah wallstreet blah blah blahhh geology blahhhhh
JavaJunky (JavaJunky) Sat, 02 Jan 2010 07:56:05 -0000
@heartbursts blah blah blah wallstreet blah blah blahhh geology blahhhhh
Caltech, you suck. Your geology faculty pages are 5 or more years out of date.
liquidtrees (Jen Hamon) Sat, 02 Jan 2010 06:53:44 -0000
Caltech, you suck. Your geology faculty pages are 5 or more years out of date.
http://geology.com/nasa/universe-pictures/spiral-galaxy.jpg
uschles (Udi Schlessinger) Sat, 02 Jan 2010 04:57:10 -0000
http://geology.com/nasa/universe-pictures/spiral-galaxy.jpg
Petroleum Geology - by Knut Bjorlykke - Springer. http://bit.ly/6j7AUo
geology_book (New Geology Books) Sat, 02 Jan 2010 04:43:23 -0000
Petroleum Geology - by Knut Bjorlykke - Springer. http://bit.ly/6j7AUo
A summary of photos posted on flickr today, tagged with âgeology.â Displayed below are 16 geology-r.. http://bit.ly/4UCIK8
inengineering (In Engineering) Sat, 02 Jan 2010 04:21:50 -0000
A summary of photos posted on flickr today, tagged with “geology.” Displayed below are 16 geology-r.. http://bit.ly/4UCIK8
Dictionary of Petroleum and Oilfield Terminology - Glossary of terms. The list is searchable and also contains links to further information.
Meta Description: [ The most complete index of oilfield and petroleum terms available. The oilfield index is the encyclopedia of oil, brought to you in association with Anson. ]
Earthquake Image Glossary - Heavily illustrated glossary of common terms in seismology.
Meta Description: [ USGS Earthquake Hazards Program, responsible for monitoring, reporting, and researching earthquakes and earthquake hazards ]
Geological and Gem Terminology - Jillian Banfield's glossary of geological and gem-related vocabulary.
Geology Dictionary - Geology.com - Definitions of terms, written at a level appropriate for students in introductory courses.
Meta Description: [ A geology dictionary from A to Z from Geology.com ]
GeologyLink Glossary - Indexed glossary of geology terms.
Glacier Glossary - An A-to-Z glossary of glacier terms written by the professor and students of an NEIU glaciology class.
Glossary of Selected Geologic Terms - Glossary of selected geological terms from the University of Nebraska-Lincoln.
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Illustrated Glossary of Geologic Terms - Based on the glossary in Earth: An Introduction to Geologic Change, by S.Judson and S.M.Richardson. Includes related terms.
Schlumberger Oilfield Glossary - Defines many terms related to oil and gas exploration and production. Includes illustrations.
USGS Photo Glossary of Volcanic Terms - Illustrates and describes commonly used volcano-related terms.
Meta Description: [ Illustrates and describes commonly
used volcano-related terms. ]
Volcanic and Geologic Terms Glossary - Common terms defined.
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