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Chalk is formed from lime mud, which accumulates on the sea floor in the right conditions. This is then transformed into rock by geological processes: as more sediment builds up on top, and as the sea floor subsides, the lime mud is subject...
http://answers.yahoo.com/question/index?qid=20090429125...
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Chalk - Wikipedia, the free encyclopedia
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Chalk (pronounced /tʃɔːk/ ) is a soft, white, porous sedimentary rock, a form of limestone composed of the mineral calcite. It forms under relatively deep marine conditions from the gradual acc...
en.wikipedia.org/wiki/Chalk
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Chalk forms from the deep marine accumulation of the plates of organisms called coccolithophores. The plates are composed of the mineral calcite.
http://wiki.answers.com/Q/How_is_chalk_formed
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Red Chalk with belemnite ... Chalk with chert ... Both the English and French shores are mainly formed by chalk cliffs i.e. 'White Cliffs of Dover'. This is perhaps THE classic location of chalk.
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www.kabrna.com/cpgs/rocks/sedimentary/chalk.htm
www.kabrna.com/cpgs/rocks/sedimentary/chalk.htm
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How is chalk formed? Coursework by GCSE and A level students ... Home > GCSE > Maths > Data Handling > Height and Weight of Pupils and other Mayfield High School investigations > How is chalk formed?
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www.studentcentral.co.uk/is_chalk_formed_4845/
www.studentcentral.co.uk/is_chalk_formed_4845/
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Both the English and French shores are mainly formed by chalk cliffs, with what many consider to be classic location of the 'White Cliffs of Dover' occurring between Dover and the South Foreland (St. Margaret's Bay).
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www.geologyshop.co.uk/chalk.htm
www.geologyshop.co.uk/chalk.htm
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Igneous - Igneous Rocks are formed from cooled magma. Magma is melted rock deep inside the earth. Magma on the crust is called molten lava. ... Chalk - Formed from the skeletons of time sea animals that are too small to see with the naked eye.
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www.fi.edu/fellows/fellow4/nov98/projects/formed.html
www.fi.edu/fellows/fellow4/nov98/projects/formed.html
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Nevertheless, it is via this slow accumulation of calcareous ooze on the deep ocean floor that geologists believe chalk beds originally formed...
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www.answersingenesis.org/tj/v8/i1/chalk.asp
www.answersingenesis.org/tj/v8/i1/chalk.asp
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It so happens that calcareous skeletons, exactly similar to the Globigerinæ of the chalk, are being formed, at the present moment, by minute living creatures, which flourish in multitudes, literally more numerous than the sands of the sea-shore, over a large extent of that part of the earth's surface which is covered...
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aleph0.clarku.edu/huxley/CE8/Chalk.html
aleph0.clarku.edu/huxley/CE8/Chalk.html
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