Jimol Formation

Jimol Formation
Jimol Formation
Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Type	Geological formation
Unit of	Cocinetas Basin
Underlies	Castilletes Formation
Overlies	Uitpa Formation
Thickness	up to 203 m (666 ft)
Lithology
Primary	Sandstone
Other	Siltstone, mudstone
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	Cerro Jimol
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 Jimol Formation (

SALMA

classification, and has a maximum thickness of 203 metres (666 ft).

Etymology

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

Description

Lithologies

The Jimol Formation consists of calcareous lithic and fossiliferous sandstones, siltstones and mudstones.^[2]

Stratigraphy and depositional environment

The Jimol Formation overlies the

shallow marine environment,^[4] inner shelf depth (less than 50 metres' [160 ft] water depth). This unit is correlated with the upper Agua Clara and lower Cerro Pelao Formations of the Venezuelan Falcón Basin.^[5]

Petroleum geology

The Jimol Formation is a

seal rock formation in the Guajira Basin.^[6]

Fossil content

Group	Fossils	Notes
Reptiles	Crocodylidae, Gavialidae	^[7]
Fishes	Chilomycterus sp.	^[8]
Fishes	Carcharhinidae	^[7]
Invertebrates	Glycymeris sp., Amusium aguaclarense, Conus sp. cf. chipolanus, Conus sp. cf. molis, Conus talis, Strioterebrum ulloa, Terebra (Paraterebra) sulcifera, Clathrodrillia sp., Cruziturricula sp., Hindsiclava henekeni, Knefastia sp., Polystira sp., Adrana sp., Politoleda forcati, Anadara (Cunearca) zuliana, Anadara (Grandiarca) chiriquiensis, Anadara (Potiarca) inutilis, Anadara (Rasia) sp. cf. cornellana, Anadara (Tosarca) sp. cf. veatchi, Tucetona sp. cf. democraciana, Mytilus sp. cf. canoasensis, Paraleptopecten quirosensis, Hyotissa sp., Spondylus sp., Pseudochama quirosana, Trachycardium sp., Leopecten sp., Lindapecten buchivacoanus, Crassostrea sp., Dendostrea democraciana, Plicatula sp., Anodontia sp., Lucina sp. cf. pensylvanica, Phacoides sp. cf. pectinatus, Glyptoactis paraguanensis, Arcinella yaquensis, Chama berjadinensis, Dallocardia sp. cf. sanctidavidis, Apiocardia n. sp. aff. aminensis, Crassinella sp., Eucrassatella (Hybolophus) venezuelana, Micromactra maracaibensis, Eurytellina paraguanensis, Psammacoma falconensis, Psammotreta hadra, Donax sp., Tagelus (Mesopleura) n. sp. aff. divisus, Solecurtus sp., Solena sp., Abra sp., Anomalocardia sp., Globivenus palmeri, Semele sp., Chione sp., Chionopsis paraguanensis, Clementia dariena, Cyclinella venezuelana, Dosinia sp., Lamelliconcha labreana, Lirophora quirosensis, Macrocallista n. sp. aff. maculata, Panchione n. sp. aff. macrtropsis, Caryocorbula fortis, Caryocorbula quirosana, Hexacorbula cruziana, Dentalium sp., Balanidae indet., Callianassidae indet., Cidaroida indet., Echinoida indet., Turridae indet., Veneridae indet.	^[3]^[9] ^[10]^[11]

References

^ Moreno et al., 2015, p.7
^ Moreno et al., 2015, pp.18-27
^ ^a ^b Moreno et al., 2015, p.23
^ Rodríguez & Londoño, 2002, p.137
^ Moreno et al., 2015, p.27
^ ANH, 2010
^ ^a ^b Moreno et al., 2015, p.35
^ Aguilera et al., 2017, p.15
^ Hendy et al., 2015, p.52
^ Hendy et al., 2015, p.53
^ Hendy et al., 2015, p.54

Bibliography

Local geology

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.

Paleontology

Aguilera, Órangel; Guilherme Oliveira Andrade Silva; Ricardo Tadeu Lopes; Alessandra Silveira Machado; Thaís Maria Dos Santos; Gabriela Marques; Thayse Bertucci; Thayanne Aguiar, and Jorge Carrillo Briceño and Felix Rodríguez,
PLoS ONE
12(7). 1–26. Accessed 2019-02-09.
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.

Maps

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.

[Morenoetal_p7-1] Moreno et al., 2015, p.7

[Morenoetal_2015_pp18_27-2] Moreno et al., 2015, pp.18-27

[Morenoetal_2015_p23-3] Moreno et al., 2015, p.23

[Rodriguez_p137-4] Rodríguez & Londoño, 2002, p.137

[Morenoetal_2015_p27-5] Moreno et al., 2015, p.27

[ANH2010-6] ANH, 2010

[Morenoetal_p35-7] Moreno et al., 2015, p.35

[Aguilera2017_p15-8] Aguilera et al., 2017, p.15

[Hendy_p52-9] Hendy et al., 2015, p.52

[Hendy_p53-10] Hendy et al., 2015, p.53

[Hendy_p54-11] Hendy et al., 2015, p.54

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