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Geologic Column |
Also found in: Wikipedia | 0.01 sec. |
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geologic column [¦jē·ə¦läj·ik ′käl·əm]
(geology) The vertical sequence of strata of various ages found in an area or region. Also known as column. The geologic time scale as represented by rocks. Geologic Column (or stratigraphic column), a diagram that uses special symbols to represent in a certain scale the sequence of strata in a standard geologic section and the nature of the contacts between adjacent stratigraphic units. A geologic column usually gives the names or index numbers of the stratigraphic units, the geologic ages of the units, the thicknesses of the units, and the units’ lithologic and paleontological characteristics. A geologic column that has been constructed by comparing two or more local geologic sections is called a composite geologic column. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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