Earth:Victorio Peak Formation
| Victorio Peak Formation Stratigraphic range: Kungurian | |
|---|---|
| Type | Formation |
| Underlies | Cutoff Shale |
| Thickness | 1,000 m (3,300 ft) |
| Lithology | |
| Primary | Limestone |
| Other | Dolomite |
| Location | |
| Coordinates | [ ⚑ ] 31°19′31″N 104°52′47″W / 31.3254°N 104.8798°W |
| Region | Texas New Mexico |
| Country | United States |
| Type section | |
| Named for | Victorio Peak (Texas) |
| Named by | King and King |
| Year defined | 1929 |
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The Victorio Peak Formation is a geologic formation found in the Delaware Basin in Texas and New Mexico. It preserves fossils dating back to the Leonardian Age of the Permian Period.[1]
Description
The formation consists of light gray limestone and dolomite[1] The total thickness over 1,000 meters (3,300 ft).[2] The base of the formation is largely concealed in the subsurface, and the formation is overlain by the Cutoff Shale.[1] The formation grades laterally to the southeast into the Bone Spring Formation, representing the change from shallow shelf carbonate deposition to deep marine carbonate deposition. To the northwest, the Victorio Peak Formation grades into the Yeso Group and the lower part of the San Andres Formation.[3][4]
Fossils
The formation contains fossil brachiopods, include Productus ivesii,[5] Dichtyoclostus, and Neospirifer, fusulinids such as Parafusilina, crinoids, corals, and euomphalid gastropods[6] characteristic of the Leonardian.
History of investigation
The formation was first designated the Victorio Peak Member of the (now-abandoned) Leonard Formation by King and King in 1929.[5] It was reassigned as the Victorio Peak Member of the Bone Spring Formation by King in 1942,[2] and finally removed as its own formation by Hay-Roe in 1957.[7]
Economic geology
See also
- List of fossiliferous stratigraphic units in New Mexico
- List of fossiliferous stratigraphic units in Texas
Footnotes
References
- Boyd, Donald Wilkin (1958). "Permian sedimentary facies, central Guadalupe Mountains, New Mexico.". New Mexico Bureau of Geology and Mineral Resources Bulletin 49. https://geoinfo.nmt.edu/publications/monographs/bulletins/downloads/49/Bulletin49.pdf. Retrieved 22 September 2020.
- Hay-Roe, Hugh (1957). "Geologic map of Wylie Mountains and vicinity, Culberson and Jeff Davis Counties, Texas". University of Texas-Austin, Bureau of Economic Geology Geologic Quadrangle Map GQ-0021. https://ngmdb.usgs.gov/Prodesc/proddesc_41605.htm. Retrieved 22 September 2020.
- Kerans, Charles H.; Fitchen, W. M.; Gardner, M. H.; Wardlaw, B. R. (1993). "A contribution to the evolving stratigraphic framework of middle Permian strata of the Delaware Basin, Texas and New Mexico". New Mexico Geological Society Field Conference Series 44: 175–184. https://nmgs.nmt.edu/publications/guidebooks/downloads/44/44_p0175_p0184.pdf. Retrieved 22 September 2020.
- King, P.B. (1942). "Permian of West Texas and Southeastern New Mexico: PART 1". AAPG Bulletin 26. doi:10.1306/3D933466-16B1-11D7-8645000102C1865D.
- King, Philip B.; King, Robert E. (1929). "Stratigraphy of Outcropping Carboniferous and Permian Rocks of Trans-Pecos Texas". AAPG Bulletin 13. doi:10.1306/3D93286B-16B1-11D7-8645000102C1865D.
- Kues, B.S.; Giles, K.A. (2004). "The late Paleozoic Ancestral Rocky Mountain system in New Mexico". in Mack, G.H.; Giles, K.A.. The geology of New Mexico. A geologic history: New Mexico Geological Society Special Volume 11. pp. 95–136. ISBN 9781585460106.
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