Earth:Mazarn Shale
From HandWiki
| Mazarn Shale Stratigraphic range: Ordovician | |
|---|---|
| Type | Formation |
| Unit of | none |
| Sub-units | none |
| Underlies | Blakely Sandstone |
| Overlies | Crystal Mountain Sandstone |
| Thickness | 1000 to 2500+ feet[1] |
| Lithology | |
| Primary | Shale |
| Location | |
| Region | Arkansas, Oklahoma |
| Country | United States |
| Type section | |
| Named for | Mazarn Creek, Montgomery County, Arkansas |
| Named by | Hugh Dinsmore Miser[2] |
The Mazarn Shale is an Early Ordovician geologic formation in the Ouachita Mountains of Arkansas and Oklahoma. This interval was first described in 1892,[3] but remained unnamed until 1918 as part of a study by U.S. Geological Survey geologist Hugh Dinsmore Miser.[2]
Paleofauna
- Caryocaris
- C. wrighti[4]
- Cryptograptus
- C. antennarius[4]
- Diplograptus[4]
- Glossograptus
- G. hystrix[4]
- Mesograptus[4]
- Phyllograptus
- P. typus[4]
- Retiograptus[4]
- Tetragraptus [5]
See also
- List of fossiliferous stratigraphic units in Arkansas
- Paleontology in Arkansas
References
- ↑ McFarland, John David (2004). "Stratigraphic summary of Arkansas". Arkansas Geological Commission Information Circular 36: 18. http://geology.ar.gov/pdf/IC-36_v.pdf. Retrieved 2018-01-08.
- ↑ 2.0 2.1 Miser, H.D. (1918). "Manganese deposits of the Caddo Gap and De Queen quadrangles, Arkansas". U.S. Geological Survey Bulletin 660-C: 68.
- ↑ Griswold, I.S. (1892). "Whetstones and the novaculites". Annual Report of the Geological Survey of Arkansas for 1890 3.
- ↑ 4.00 4.01 4.02 4.03 4.04 4.05 4.06 4.07 4.08 4.09 4.10 4.11 4.12 4.13 4.14 4.15 4.16 4.17 4.18 Miser, Hugh D.; Purdue, A.H. (1929). "Geology of the De Queen and Caddo Gap quadrangles, Arkansas". U.S. Geological Survey Bulletin 808: 27–28.
- ↑ 5.0 5.1 Pitt, William D.; Cohoon, Richard R.; Lee, Harry C.; Robb, Marion G; Watson, John (January 1961). "Ouachita Mountain core area, Montgomery County, Arkansas". Bulletin of the American Association of Petroleum Geologists 45 (1): 79–80. http://archives.datapages.com/data/bulletns/1961-64/data/pg/0045/0001/0050/0072.htm?doi=10.1306%2F0BDA6281-16BD-11D7-8645000102C1865D. Retrieved 8 January 2018.
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