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).
| 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 | 11°51′4.32″N 71°19′26.4″W / 11.8512000°N 71.324000°W |
| Approximate paleocoordinates | 11°42′N 70°48′W / 11.7°N 70.8°W |
| Region | La Guajira Caribbean region |
| Country |  Colombia |
| Type section | |
| Named for | Wayuunaiki: "friend" |
| Named by | Moreno et al. |
| Location | Uribia |
| Year defined | 2015 |
| Coordinates | 11°51′4.32″N 71°19′26.4″W / 11.8512000°N 71.324000°W |
| Region | La Guajira |
| Country | Colombia |
  Type locality of the formation in La Guajira | |
Etymology
editThe 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
editLithologies
editThe 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
editThe 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
editSee also
edit
References
edit- ^ 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
editLocal geology
edit- Moreno, F.; Hendy, A.J.W.; Quiroz, L.; Hoyos, N.; Jones, D.S.; Zapata, V.; Zapata, S.; Ballen, G.A.; Cadena, A.L. Cárdenas, J.D. Carrillo Briceño, J.D. Carrillo, D. Delgado Sierra, J. Escobar, J.I. Martínez, C. Martínez, C. Montes, J. Moreno, N. Pérez, R. Sánchez, C. Suárez, M.C. Vallejo Pareja, C. Jaramillo, Edwin (2015), "Revised stratigraphy of Neogene strata in the Cocinetas Basin, La Guajira, Colombia" (PDF), Swiss Journal of Palaeontology, 134 (1): 5–43, Bibcode:2015SwJP..134....5M, doi:10.1007/s13358-015-0071-4, retrieved 2017-08-08
{{citation}}: CS1 maint: multiple names: authors list (link) - Rodríguez, Gabriel; Londoño, Ana Cristina (2002), Mapa geológico del Departamento de La Guajira - 1:250,000, INGEOMINAS, pp. 1–259, retrieved 2017-08-08
Paleontology
edit- Amson, Eli; Carrillo, Juan D.; Jaramillo, Carlos (2016), "Neogene sloth assemblages (Mammalia, Pilosa) of the Cocinetas Basin (La Guajira, Colombia): Implications for the Great American Biotic Interchange" (PDF), Palaeontology, 59 (4): 563–582, Bibcode:2016Palgy..59..563A, doi:10.1111/pala.12244, retrieved 2017-03-31
- Hendy, Austin J.W.; Jones, Douglas S.; Moreno, Federico; Zapata, Vladimir; Jaramillo, Carlos (2015), "Neogene molluscs, shallow marine paleoenvironments, and chronostratigraphy of the Guajira Peninsula, Colombia" (PDF), Swiss Journal of Palaeontology, 134 (1): 45–75, Bibcode:2015SwJP..134...45H, doi:10.1007/s13358-015-0074-1, retrieved 2017-08-08
- Pérez, María E.; Vallejo Pareja, María C.; Carrillo, Juan D.; Jaramillo, Carlos (2017), "A New Pliocene Capybara (Rodentia, Caviidae) from Northern South America (Guajira, Colombia), and its Implications for the Great American Biotic Interchange" (PDF), Journal of Mammalian Evolution, 24: 111–125, doi:10.1007/s10914-016-9356-7, retrieved 2017-04-04
Maps
edit- Zuluaga, Carlos A.; Ochoa, Alberto; Muñoz, Carlos A.; Dorado, Camilo E.; Guerrero, Nathalia M.; Martínez, Ana M.; Medina, Paula A.; Ocampo, Edgar F.; Pinilla and Paula A. Ríos, Bibiana P. Rodríguez, Edward A. Salazar, Vladimir L. Zapata, Alejandro (2008), Plancha 3 - Puerto Estrella - 1:100,000, INGEOMINAS, p. 1, retrieved 2017-06-06
{{citation}}: CS1 maint: multiple names: authors list (link) - Zuluaga, Carlos A.; Ochoa, Alberto; Muñoz, Carlos A.; Dorado, Camilo E.; Guerrero, Nathalia M.; Martínez, Ana M.; Medina, Paula A.; Ocampo, Edgar F.; Pinilla and Paula A. Ríos, Bibiana P. Rodríguez, Edward A. Salazar, Vladimir L. Zapata, Alejandro (2008), Plancha 5 - Bahía Portete - 1:100,000, INGEOMINAS, p. 1, retrieved 2017-06-06
{{citation}}: CS1 maint: multiple names: authors list (link) - Zuluaga, Carlos A.; Ochoa, Alberto; Muñoz, Carlos A.; Dorado, Camilo E.; Guerrero, Nathalia M.; Martínez, Ana M.; Medina, Paula A.; Ocampo, Edgar F.; Pinilla and Paula A. Ríos, Bibiana P. Rodríguez, Edward A. Salazar, Vladimir L. Zapata, Alejandro (2008), Plancha 10 - Rancho Grande - 1:100,000, INGEOMINAS, p. 1, retrieved 2017-06-06
{{citation}}: CS1 maint: multiple names: authors list (link) - Zuluaga, Carlos A.; Ochoa, Alberto; Muñoz, Carlos A.; Dorado, Camilo E.; Guerrero, Nathalia M.; Martínez, Ana M.; Medina, Paula A.; Ocampo, Edgar F.; Pinilla and Paula A. Ríos, Bibiana P. Rodríguez, Edward A. Salazar, Vladimir L. Zapata, Alejandro (2008), Plancha 10bis - Rancho Grande - 1:100,000, INGEOMINAS, p. 1, retrieved 2017-06-06
{{citation}}: CS1 maint: multiple names: authors list (link)