Английская Википедия:Diligencia Formation
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Шаблон:Infobox rockunit The Diligencia Formation (Td) is a geologic formation cropping out in the Orocopia Mountains in southern California. It preserves mammal fossils dating to the Late Oligocene to Early Miocene (Arikareean in the NALMA classification).[1]
Description
The non-marine Diligencia Formation, defined by Crowell in 1975, is composed of alluvial, fluvial, and lacustrine conglomerates, sandstones, siltstones and limestones. It contains interbedded basalt and andesite flows, dated by whole-rock and plagioclase K-Ar methods as ca. 24–21 Ma), and andesitic sills and dikes.[2][3]
Fossil content
The formation has provided the following fossils:[1]
- Mammals
See also
- List of fossiliferous stratigraphic units in California
- Paleontology in California
- Plush Ranch Formation
- Tick Canyon Formation
References
Bibliography
- ↑ Перейти обратно: 1,0 1,1 Diligencia Formation at Fossilworks.org
- ↑ Coffey et al., 2019, p.481
- ↑ Canyon Spring at Fossilworks.org
- ↑ Woodburne & Whistler, 1973
Категории:
- Английская Википедия
- Geologic formations of California
- Miocene Series of North America
- Oligocene Series of North America
- Miocene California
- Paleogene California
- Chattian Stage
- Aquitanian (stage)
- Sandstone formations of the United States
- Conglomerate formations
- Shale formations of the United States
- Siltstone formations
- Oligocene volcanism
- Alluvial deposits
- Fluvial deposits
- Lacustrine deposits
- Paleontology in California
- Andesite formations
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- Страницы с телепортом
- Википедия
- Статья из Википедии
- Статья из Английской Википедии
