Ware Formation
| Ware Formation | |
|---|---|
| Stratigraphic range: Late Miocene-Early Pleistocene, typically Pliocene ~ | |
| Type | Geological formation |
| Unit of | Cocinetas Basin |
| Underlies | Alluvium |
| Overlies | Castilletes Formation |
| Thickness | up to 25 m (82 ft) |
| Lithology | |
| Primary | Sandstone, mudstone |
| Other | Conglomerate |
| Location | |
| Coordinates | Lua error in Module:Coordinates at line 489: attempt to index field 'wikibase' (a nil value). |
| Approximate paleocoordinates | Lua error: callParserFunction: function "#coordinates" was not found. |
| Region | La Guajira Caribbean region |
| Country | Colombia |
| Type section | |
| Named for | Wayuunaiki: "friend" |
| Named by | Moreno et al. |
| Location | Uribia |
| Year defined | 2015 |
| Coordinates | Lua error: callParserFunction: function "#coordinates" was not found. |
| Region | La Guajira |
| Country | Colombia |
  Type locality of the formation in La Guajira | |
The Ware Formation (Spanish: Formación Ware) is a fossiliferous geological formation of the Cocinetas Basin in the northernmost department of La Guajira. The formation consists of fine lithic to quartzitic sandstones, mudstones, pebbly conglomerates with sedimentary and metamorphic rock fragments, fossiliferous packstones and sandy to conglomeratic beds with high fossil content. The Ware Formation dates to the Neogene and Quaternary periods; Late Miocene to Early Pleistocene epochs, typically Pliocene (3.5 to 2.8 Ma), Uquian, Chapadmalalan and Montehermosan in the SALMA classification, and has a maximum thickness of 25 metres (82 ft).
Etymology
[edit | edit source]The formation was defined in 2015 by Moreno et al., and given the name Ware, meaning "friend" in Wayuunaiki, the language of the local indigenous Wayuu, meaning "friend". The name has been given to pay tribute to the friendship between Colombia and Venezuela.[1]
Description
[edit | edit source]Lithologies
[edit | edit source]The Ware Formation consists of fine lithic to quartzitic sandstones, mudstones, pebbly conglomerates with sedimentary and metamorphic rock fragments, fossiliferous packstones and sandy to conglomeratic beds with high fossil content.[2]
Stratigraphy and depositional environment
[edit | edit source]The Ware Formation overlies the Castilletes Formation and is overlain by Quaternary alluvium. The age has been estimated to be Late Miocene to Early Pleistocene (5.2 to 1.22 Ma), Uquian, Chapadmalalan and Montehermosan in the SALMA classification, with a narrow definition in the Pliocene (3.5 to 2.8 Ma). The marine invertebrate fauna of the Ware Formation shows a greater similarity with modern assemblages offshore of the Guajira Peninsula than with those of the underlying units.[3] The base of the Ware Formation was deposited in a fluvio-deltaic environment, whereas the marine invertebrate assemblage at the top of the unit contains taxa typical of exposed open-ocean shoreface and nearshore settings, but with proximity to coral reef habitats. The Ware Formation correlates with the San Gregorio Formation in the Venezuelan Falcón Basin.[4]
Fossil content
[edit | edit source]See also
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Geology of the Eastern Hills
Cesar-Ranchería Basin- Honda Group
Chorrera, Pisco, Tilatá, Tunjuelo Formations- Urumaco
References
[edit | edit source]- ^ Moreno et al., 2015, p.32
- ^ Moreno et al., 2015, pp.32-34
- ^ a b Moreno et al., 2015, p.33
- ^ Moreno et al., 2015, p.34
- ^ a b c Moreno et al., 2015, p.35
- ^ a b Amson et al., 2016, p.3
- ^ Amson et al., 2016, p.4
- ^ Amson et al., 2016, p.7
- ^ Amson et al., 2016, p.8
- ^ Amson et al., 2016, p.9
- ^ Amson et al., 2016, p.12
- ^ Amson et al., 2016, p.15
- ^ Pérez et al., 2017
- ^ Police Station 470062 at Fossilworks.org
Bibliography
[edit | edit source]Local geology
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Paleontology
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Maps
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- Geologic formations of Colombia
- Neogene Colombia
- Pleistocene Colombia
- Miocene Series of South America
- Pliocene Series of South America
- Uquian
- Chapadmalalan
- Montehermosan
- Sandstone formations
- Mudstone formations
- Conglomerate formations
- Deltaic deposits
- Fluvial deposits
- Fossiliferous stratigraphic units of South America
- Paleontology in Colombia
- Geography of La Guajira Department
- Wayuu language