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Colorado Formation, Argentina
Topic: Earth
From HandWiki - Reading time: 2 min
Short description: Geologic formation in Argentina
| Colorado Formation Stratigraphic range: Campanian-Maastrichtian | |
|---|---|
| Type | Geological formation |
| Overlies | Paleozoic basement |
| Thickness | 30 m (98 ft) |
| Lithology | |
| Primary | Sandstone |
| Other | Conglomerate |
| Location | |
| Coordinates | [ ⚑ ] : 38°12′S 64°30′W / 38.2°S 64.5°W |
| Paleocoordinates | [ ⚑ ] 41°18′S 49°48′W / 41.3°S 49.8°W |
| Region | La Pampa Province |
| Country | Argentina |
| Extent | Colorado Basin |
| Type section | |
| Named for | Colorado River |
  Colorado Formation, Argentina (Argentina) | |
The Colorado Formation is a Late Cretaceous (Campanian to Maastrichtian geologic formation that is exposed within the Colorado Basin in the southeastern part of La Pampa Province, Argentina . Fossil dinosaur eggs of Sphaerovum erbeni have been reported from the nonmarine, fluvial strata of this formation.[1][2]
Description
The formation overlies the Paleozoic basement and has an estimated thickness of 30 metres (98 ft).[3] The Colorado Formation comprises medium-grained sandstones with intercalated conglomerates with pebbly beds that can be interpreted as fluvial to alluvial deposits.[3][4]
See also
- List of dinosaur-bearing rock formations
- List of stratigraphic units with dinosaur trace fossils#Eggs or nests
References
- ↑ Casadio, S., T. Manera, A. Parras, C. L. Montalvo (2002) Huevos de dinosaurios (Faveoloolithidae) del Cretácico superior de la Cuenca del Colorado, Provincia de La Pampa, Argentina. Ameghiniana. 39(3):285–293.
- ↑ Weishampel (2004). "Dinosaur distribution". in Weishampel, David B.; Dodson, Peter; Osmólska, Halszka. The dinosauria (2nd ed.). Berkeley: Univ. of California Press. pp. 604. ISBN 978-0-520-24209-8. https://archive.org/details/dinosauriandedit00weis.
- ↑ 3.0 3.1 López, 2017, p.19
- ↑ Hucal eggsite locality A at Fossilworks.org
Bibliography
- López, Gisela Romina. 2017. Sedimentología e inferencias ambientales de los depósitos de la Formación Colorado (Campaniano-Maastrichtiano), Departamento Hucal, Provincia de La Pampa (BSc. thesis), 1–95. Universidad Nacional de La Pampa. Accessed 2018-09-07.
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Licensed under CC BY-SA 3.0 | Source: https://handwiki.org/wiki/Earth:Colorado_Formation,_Argentina24 views | ↧ Download this article as ZWI file
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