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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

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

Description

Lithologies

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

Stratigraphy and depositional environment

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]

Petroleum geology

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

Fossil content

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]

References

^ Moreno et al., 2015, p.7
^ Carrillo Briceño et al., 2016, p.78
^ Hendy et al., 2015, p.47
^ Rodríguez & Londoño, 2002, p.135
^ ANH, 2010
^ Carrillo Briceño et al., 2016, p.91
^ Hendy et al., 2015, p.50

Bibliography

Local geology

ANH (2010), Guajira Basin - Colombia Open Round 2010 (PDF), ANH, p. 1, retrieved 2017-08-30
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

Carrillo Briceño, Jorge D.; Argyriou, Thodoris; Zapata, Vladimir; Kindlimann, René; Jaramillo, Carlos (2016), "A New Early Miocene (Aquitanian) Elasmobranchii Assemblage from the la Guajira Peninsula, Colombia" (PDF), Ameghiniana, 53 (2): 77–99, doi:10.5710/AMGH.26.10.2015.2931, retrieved 2017-08-08
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

Maps

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)