Cambrian (geology): Difference between revisions
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The Cambrian is both a system of strata and a period of time. The name refers to a [[Geologic ages of earth history|chronostatrigraphic]] or a [[Geologic ages of earth history|geochronological]] units of geological measure. The Cambrian is roughly the period between 543 to 490 million years ago in the Paleozoic Era of the Phanerozoic Eon. It encompasses four chronostatrigraphic series and ten epochs and correspondingly, four geochronological stages and ten ages. | The Cambrian is both a system of strata and a period of time. The name refers to a [[Geologic ages of earth history|chronostatrigraphic]] or a [[Geologic ages of earth history|geochronological]] units of geological measure. The Cambrian is roughly the period between 543 to 490 million years ago in the Paleozoic Era of the Phanerozoic Eon. It encompasses four chronostatrigraphic series and ten epochs and correspondingly, four geochronological stages and ten ages. | ||
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The name is derived from ''Cambria'', the Roman word for ''Wales'', the area where the rocks of the Cambrian was first studied.<ref>[http://www.isgs.uiuc.edu/glossary.htm Glossary] Illinois State Geological Survey</ref> | The name is derived from ''Cambria'', the Roman word for ''Wales'', the area where the rocks of the Cambrian was first studied.<ref>[http://www.isgs.uiuc.edu/glossary.htm Glossary] Illinois State Geological Survey</ref> | ||
==Sources== | |||
[http://wwwalt.uni-wuerzburg.de/palaeontologie/ISCS/casu-Paibi.htm Proposed Global Standard Stratotype-Section and Point for the Paibian Stage and Furongian Series (Upper Cambrian)] International Subcommission on Cambrian Stratigraphy, International Commission on Stratigraphy (ICS), International Union of Geological Sciences (IUGS). | |||
==References == | ==References == | ||
Revision as of 17:59, 22 April 2007
The Cambrian is both a system of strata and a period of time. The name refers to a chronostatrigraphic or a geochronological units of geological measure. The Cambrian is roughly the period between 543 to 490 million years ago in the Paleozoic Era of the Phanerozoic Eon. It encompasses four chronostatrigraphic series and ten epochs and correspondingly, four geochronological stages and ten ages.
| Erathem/Era | System/Period | Series/Epoch | Stage/Age |
|---|---|---|---|
| Paleozoic | Cambrian | Furongian | Unnamed |
| Unnamed | |||
| Paibian | |||
| Unnamed | Unnamed | ||
| Drumian | |||
| Unnamed | |||
| Unnamed | Unnamed | ||
| Unnamed | |||
| Unnamed | Unnamed | ||
| Unnamed |
The name is derived from Cambria, the Roman word for Wales, the area where the rocks of the Cambrian was first studied.[1]
Sources
Proposed Global Standard Stratotype-Section and Point for the Paibian Stage and Furongian Series (Upper Cambrian) International Subcommission on Cambrian Stratigraphy, International Commission on Stratigraphy (ICS), International Union of Geological Sciences (IUGS).