Uitpa Formation

Uitpa Formation
Uitpa Formation
Stratigraphic range: Aquitanian-Burdigalian; ~23–17.9 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Type	Geological formation
Unit of	Cocinetas Basin
Underlies	Jimol Formation
Overlies	Siamaná Formation
Thickness	up to 230 m (750 ft)
Lithology
Primary	Mudstone
Other	Sandstone
Location
Coordinates	11°58′00″N 71°22′43″W / 11.96667°N 71.37861°W
Region	La Guajira; Caribbean region
Country	Colombia
Type section
Named for	Uitpa
Named by	Renz
Location	Uribia
Year defined	1960
Coordinates	11°58′00″N 71°22′43″W / 11.96667°N 71.37861°W
Region	La Guajira
Country	Colombia
	; Type locality of the formation in La Guajira

The Uitpa Formation (Spanish: Formación Uitpa, E3u) is a fossiliferous geological formation of the Cocinetas Basin in the northernmost department of La Guajira. The formation consists of calcareous mudstones interbedded with lithic sandstones. The Uitpa Formation dates to the Neogene period; Aquitanian to Burdigalian stages, corresponding to the Colhuehuapian in the SALMA classification, and has a maximum thickness of 230 metres (750 ft).

Etymology edit

The formation was defined by Renz in 1960 and named after Uitpa.^[1]

The Uitpa Formation consists of calcareous mudstones interbedded with lithic sandstones.^[2]^[3]

The Uitpa Formation overlies the Siamaná Formation and is overlain by the Jimol Formation. The age has been estimated to be Early Miocene, corresponding to the Colhuehuapian in the SALMA classification. The formation has been deposited in an open to deep marine environment.^[4]

The Uitpa Formation is a reservoir and seal rock formation in the Guajira Basin.^[5]

Group	Fossils	Notes
Fishes	Heptranchias cf. howellii, Centrophorus sp., Dalatias cf. licha, Pristiophorus sp., Isurus cf. oxyrinchus, Carcharocles sp., Alopias cf. superciliosus, Hemipristis serra, Carcharhinus gibbesii, Sphyrna laevissima, Mobula sp., Lamniformes indet., Teleostei indet.	^[6]
Invertebrates	Turritella sp., Xenophora sp., Architectonica nobilis, Glossaulax sp., Orthaulax sp., Gorgasina sp., Adrana sp., Saccella sp., Limopsis sp., Mimachlamys canalis, Cyclopecten sp., Propeamussium sp., Ostrea sp., Pteria sp., Lucinoma sp., Psammacoma sp., Chionopsis sp., Antalis sp., Fissidentalium sp., Turridae indet.	^[7]

ANH, .. 2010. Guajira Basin - Colombia Open Round 2010, 1. ANH. Accessed 2017-08-30.
Moreno, F.; A.J.W. Hendy; L. Quiroz; N. Hoyos; D.S. Jones; V. Zapata; S. Zapata; G.A. Ballen, and Edwin 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. 2015. Revised stratigraphy of Neogene strata in the Cocinetas Basin, La Guajira, Colombia. Swiss Journal of Palaeontology 134. 5–43. Accessed 2017-08-08.
Rodríguez, Gabriel, and Ana Cristina Londoño. 2002. Mapa geológico del Departamento de La Guajira - 1:250,000, 1–259. INGEOMINAS. Accessed 2017-08-08.

Carrillo Briceño, Jorge D.; Thodoris Argyriou; Vladimir Zapata; René Kindlimann, and Carlos Jaramillo. 2016. A New Early Miocene (Aquitanian) Elasmobranchii Assemblage from the la Guajira Peninsula, Colombia. Ameghiniana 53. 77–99. Accessed 2017-08-08.
Hendy, Austin J.W.; Douglas S. Jones; Federico Moreno; Vladimir Zapata, and Carlos Jaramillo. 2015. Neogene molluscs, shallow marine paleoenvironments, and chronostratigraphy of the Guajira Peninsula, Colombia. Swiss Journal of Palaeontology 134. 45–75. Accessed 2017-08-08.

Zuluaga, Carlos A.; Alberto Ochoa; Carlos A. Muñoz; Camilo E. Dorado; Nathalia M. Guerrero; Ana M. Martínez; Paula A. Medina; Edgar F. Ocampo, and Alejandro Pinilla and Paula A. Ríos, Bibiana P. Rodríguez, Edward A. Salazar, Vladimir L. Zapata. 2008. Plancha 3 - Puerto Estrella - 1:100,000, 1. INGEOMINAS. Accessed 2017-06-06.
Zuluaga, Carlos A.; Alberto Ochoa; Carlos A. Muñoz; Camilo E. Dorado; Nathalia M. Guerrero; Ana M. Martínez; Paula A. Medina; Edgar F. Ocampo, and Alejandro Pinilla and Paula A. Ríos, Bibiana P. Rodríguez, Edward A. Salazar, Vladimir L. Zapata. 2008. Plancha 5 - Bahía Portete - 1:100,000, 1. INGEOMINAS. Accessed 2017-06-06.
Zuluaga, Carlos A.; Alberto Ochoa; Carlos A. Muñoz; Camilo E. Dorado; Nathalia M. Guerrero; Ana M. Martínez; Paula A. Medina; Edgar F. Ocampo, and Alejandro Pinilla and Paula A. Ríos, Bibiana P. Rodríguez, Edward A. Salazar, Vladimir L. Zapata. 2008. Plancha 10 - Rancho Grande - 1:100,000, 1. INGEOMINAS. Accessed 2017-06-06.
Zuluaga, Carlos A.; Alberto Ochoa; Carlos A. Muñoz; Camilo E. Dorado; Nathalia M. Guerrero; Ana M. Martínez; Paula A. Medina; Edgar F. Ocampo, and Alejandro Pinilla and Paula A. Ríos, Bibiana P. Rodríguez, Edward A. Salazar, Vladimir L. Zapata. 2008. Plancha 10bis - Rancho Grande - 1:100,000, 1. INGEOMINAS. Accessed 2017-06-06.