
Catastrophism is the theory that the Earth has been affected in the past by sudden, short-lived, violent events, possibly worldwide in scope. This was in contrast to uniformitarianism (sometimes described as gradualism), in which slow incremental changes, such as erosion, created all the Earth`s geological features. Uniformitarianism held that th....
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http://en.wikipedia.org/wiki/Catastrophism

belief in rapid geological and biological change
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http://phrontistery.info/c.html

• (n.) The doctrine that the geological changes in the earth`s crust have been caused by the sudden action of violent physical causes; -- opposed to the doctrine of uniformism.
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http://thinkexist.com/dictionary/meaning/catastrophism/

(from the article `Miosz, Czesaw`) ...which belonged to Poland between the two world wars. His first book of verse, Poemat o czasie zastygym (1933; `Poem of Frozen Time`), expressed ...
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http://www.britannica.com/eb/a-z/c/36

doctrine that explains the differences in fossil forms encountered in successive stratigraphic levels as being the product of repeated cataclysmic ... [5 related articles]
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http://www.britannica.com/eb/a-z/c/36

The hypothesis that a series of immense, brief, worldwide upheavals changed the Earth's crust greatly and can account for the development of mountains, valleys, and other features of the Earth. See also uniformitarianism.
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http://www.encyclo.co.uk/local/22291
Ca·tas'tro·phism noun (Geol.) The doctrine that the geological changes in the earth's crust have been caused by the sudden action of violent physical causes; -- opposed to the doctrine of
uniformism .
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http://www.encyclo.co.uk/webster/C/35

The belief that geologic history consists of major catastrophic events involving processes that were far more intense than any we observe now. Contrast with uniformitarianism.
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http://www.evcforum.net/WebPages/Glossary_Geology.html
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