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Jimol Formation

{{Short description|Geological formation in Colombia}}

{{Infobox rockunit

| name = Jimol Formation

| period = Burdigalian

| age = Burdigalian (Santacrucian)
~{{fossil range|17.9|16.7}}

| image =

| imagesize =

| caption =

| type = Geological formation

| prilithology = Sandstone

| otherlithology = Siltstone, mudstone

| unitof = Cocinetas Basin

| subunits =

| underlies = Castilletes Formation

| overlies = Uitpa Formation

| thickness = up to {{cvt|203|m}}

| area =

| map = {{Location map | Colombia La Guajira Department

| relief = 1

| width = 250

| lat_deg = 11.946800

| lon_deg = -71.3321833

| float = center

| mark = Yellow pog.svg

| marksize = 12

| caption =

}}

| map_caption = Type locality of the formation in La Guajira

| location =

| coordinates = {{coord|11|58|00|N|71|22|43|W|display=inline,title}}

| region = La Guajira
 Caribbean region

| country = Colombia

| extent =

| namedfor = Cerro Jimol

| namedby = Renz

| year_ts = 1960

| location_ts = Uribia

| coordinates_ts = {{coord|11|58|00|N|71|22|43|W|display=inline}}

| paleocoordinates_ts =

| region_ts = La Guajira

| country_ts = Colombia

| thickness_ts =

}}

The Jimol Formation ({{langx|es|Formación Jimol}}, N1j) is a fossiliferous geological formation of the Cocinetas Basin in the northernmost department of La Guajira. The formation consists of calcareous lithic and fossiliferous sandstones, siltstones and mudstones. The Jimol Formation dates to the Neogene period; Burdigalian stage, Santacrucian in the SALMA classification, and has a maximum thickness of {{convert|203|m}}.

Etymology

The formation was defined by Renz in 1960 and named after Cerro Jimol.Moreno et al., 2015, p.7

Description

= Lithologies =

The Jimol Formation consists of calcareous lithic and fossiliferous sandstones, siltstones and mudstones.Moreno et al., 2015, pp.18-27

= Stratigraphy and depositional environment =

The Jimol Formation overlies the Uitpa Formation and is overlain by the Castilletes Formation. The age has been estimated to be Early Miocene (17.9 to 16.7 Ma), corresponding to the Santacrucian in the SALMA classification. The invertebrate fauna of the Jimol Formation is similar to the fauna found in the latest Early Miocene Cantaure Formation of Venezuela and the Culebra Formation of Panama.Moreno et al., 2015, p.23 The Jimol Formation was deposited in a beach to shallow marine environment,Rodríguez & Londoño, 2002, p.137 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.Moreno et al., 2015, p.27

= Petroleum geology =

The Jimol Formation is a reservoir and seal rock formation in the Guajira Basin.ANH, 2010

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= Fossil content =

class="wikitable sortable mw-collapsible" width=100%

! Group

! Fossils

! Notes

style="background-color: {{period color|burdigalian}};" | ReptilesCrocodylidae, Gavialidae{{center|Moreno et al., 2015, p.35}}
style="background-color: {{period color|burdigalian}};" rowspan=2 | FishesChilomycterus sp.{{center|Aguilera et al., 2017, p.15}}
Dalatiidae, Myliobatidae, Lamnidae, Hemigaleidae, Carcharhinidae{{center|}}
style="background-color: {{period color|burdigalian}};" | InvertebratesCalliostoma sp., Turbo sp., Modulus tamanensis, Turritella (Bactrospira) sp. cf. altilira, Turritella (Turritella) cocoditana, Turritella (Turritella) machapoorensis, Turritella (Turritella) matarucana, Architectonica (Architectonica) nobilis, Rhinoclavis (Ochetoclava) venada, Potamides suprasulcatus, Terebralia dentilabris, Petaloconchus sculpturatus, Cirsotrema undulatum, Crepidula cantaurana, Crepidula insculpta, Crepidula plana, Calyptraea sp. cf. centralis, Crucibulum (Dispotaea) sp. cf. springvaleense, Trochita trochiformis, Charadreon n. sp., Natica sp., Naticarius sp., Glossaulax paraguanensis, Polinices sp. cf. nelsoni, Sinum gabbi, Stigmaulax sp., Pachycrommium sp., Orthaulax sp., Strombus sp., Ficus sp. cf. carbasea, Luria sp., Muracypraea sp. cf. hyaena, Calotrophon sp. cf. gatunensis, Cymia cocoditana, Eupleura kugleri, Siphonochelus (Laevityphis) cf. sawkinsi, Siratus cf. denegatus, Vokesimurex sp. cf. gilli, Antillophos sp. cf. gatunensis, Cymatophos cocoditana, Cymatophos paraguanensis, Vasum quirosense, Solenosteira sp., Latirus sp., Turbinella falconensis, Melongena consors, Anachis sp., Strombina sp., Persicula venezuelana, Prunum quirosense, Conomitra sp., Eburna sp., Oliva sp., Olivella sp., Bivetiella sp. cf. gabbiana, Euclia werenfelsi, Saccella gracillima, 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.{{center|Hendy et al., 2015, p.52
Hendy et al., 2015, p.53Hendy et al., 2015, p.54}}

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See also

{{Portal|Colombia|Geology|Paleontology}}

:{{icon|FAC}} Geology of the Eastern Hills

:{{icon|GAN}} Cesar-Ranchería Basin

:{{icon|GAN}} Honda Group

:{{icon|Start}} Abanico Formation

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References

{{reflist|20em}}

= Bibliography =

== Local geology ==

  • {{citation |last=ANH |year=2010 |title=Guajira Basin - Colombia Open Round 2010 |url=http://www.anh.gov.co/Informacion-Geologica-y-Geofisica/Estudios-Integrados-y-Modelamientos/Presentaciones%20y%20Poster%20Tcnicos/Guajira%20(pdf)-Ronda%20Colombia%202010.pdf |publisher=ANH |pages=1 |accessdate=2017-08-30 |archive-date=2017-08-31 |archive-url=https://web.archive.org/web/20170831001817/http://www.anh.gov.co/Informacion-Geologica-y-Geofisica/Estudios-Integrados-y-Modelamientos/Presentaciones%20y%20Poster%20Tcnicos/Guajira%20(pdf)-Ronda%20Colombia%202010.pdf |url-status=dead }}
  • {{citation |last1=Moreno |first1=F. |last2=Hendy |first2=A.J.W. |last3=Quiroz |first3=L. |last4=Hoyos |first4=N. |last5=Jones |first5=D.S. |last6=Zapata |first6=V. |last7=Zapata |first7=S. |last8=Ballen |first8=G.A. |last9=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 |first9=Edwin |year=2015 |title=Revised stratigraphy of Neogene strata in the Cocinetas Basin, La Guajira, Colombia |url=http://wwwprof.uniandes.edu.co/~cmontes/CamiloMontes/Publications_files/moreno_etal_2015_Guajira__stratigraphy.pdf |journal=Swiss Journal of Palaeontology |volume=134 |issue=1 |pages=5–43 |doi=10.1007/s13358-015-0071-4 |bibcode=2015SwJP..134....5M |accessdate=2017-08-08}}
  • {{citation |last1=Rodríguez |first1=Gabriel |last2=Londoño |first2=Ana Cristina |year=2002 |title=Mapa geológico del Departamento de La Guajira - 1:250,000 |url=https://www.researchgate.net/publication/270882602 |publisher=INGEOMINAS |pages=1–259 |accessdate=2017-08-08}}

== Paleontology ==

  • {{citation |last1=Aguilera |first1=Órangel |last2=Andrade Silva |first2=Guilherme Oliveira |last3=Tadeu Lopes |first3=Ricardo |last4=Silveira Machado |first4=Alessandra |last5=Dos Santos |first5=Thaís Maria |last6=Marques |first6=Gabriela |last7=Bertucci |first7=Thayse |last8=Aguiar |first8=Thayanne |last9=Carrillo Briceño and Felix Rodríguez, Carlos Jaramillo |first9=Jorge |year=2017 |title=Neogene Proto-Caribbean porcupinefishes (Diodontidae) |url=https://www.zora.uzh.ch/id/eprint/138671/1/journal.pone.0181670-1.pdf |journal=PLoS ONE |volume=12 |issue=7 |pages=1–26 |doi=10.1371/journal.pone.0181670 |doi-access=free |pmid=28746370 |pmc=5528887 |bibcode=2017PLoSO..1281670A |accessdate=2019-02-09}}
  • {{citation |last1=Hendy |first1=Austin J.W. |last2=Jones |first2=Douglas S. |last3=Moreno |first3=Federico |last4=Zapata |first4=Vladimir |author5-link=Carlos Jaramillo (geologist) |last5=Jaramillo |first5=Carlos |year=2015 |title=Neogene molluscs, shallow marine paleoenvironments, and chronostratigraphy of the Guajira Peninsula, Colombia |url=https://www.stri.si.edu/sites/publications/PDFs/Hendy_2015_Castilletes_molluscs.pdf |journal=Swiss Journal of Palaeontology |volume=134 |issue=1 |pages=45–75 |doi=10.1007/s13358-015-0074-1 |bibcode=2015SwJP..134...45H |accessdate=2017-08-08}}

== Maps ==

  • {{citation |last1=Zuluaga |first1=Carlos A. |last2=Ochoa |first2=Alberto |last3=Muñoz |first3=Carlos A. |last4=Dorado |first4=Camilo E. |last5=Guerrero |first5=Nathalia M. |last6=Martínez |first6=Ana M. |last7=Medina |first7=Paula A. |last8=Ocampo |first8=Edgar F. |last9=Pinilla and Paula A. Ríos, Bibiana P. Rodríguez, Edward A. Salazar, Vladimir L. Zapata |first9=Alejandro |year=2008 |title=Plancha 3 - Puerto Estrella - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QVk94Yi03VkJxQm8 |publisher=INGEOMINAS |pages=1 |accessdate=2017-06-06}}
  • {{citation |last1=Zuluaga |first1=Carlos A. |last2=Ochoa |first2=Alberto |last3=Muñoz |first3=Carlos A. |last4=Dorado |first4=Camilo E. |last5=Guerrero |first5=Nathalia M. |last6=Martínez |first6=Ana M. |last7=Medina |first7=Paula A. |last8=Ocampo |first8=Edgar F. |last9=Pinilla and Paula A. Ríos, Bibiana P. Rodríguez, Edward A. Salazar, Vladimir L. Zapata |first9=Alejandro |year=2008 |title=Plancha 5 - Bahía Portete - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QbzhZdFA2eXcxdjQ |publisher=INGEOMINAS |pages=1 |accessdate=2017-06-06}}
  • {{citation |last1=Zuluaga |first1=Carlos A. |last2=Ochoa |first2=Alberto |last3=Muñoz |first3=Carlos A. |last4=Dorado |first4=Camilo E. |last5=Guerrero |first5=Nathalia M. |last6=Martínez |first6=Ana M. |last7=Medina |first7=Paula A. |last8=Ocampo |first8=Edgar F. |last9=Pinilla and Paula A. Ríos, Bibiana P. Rodríguez, Edward A. Salazar, Vladimir L. Zapata |first9=Alejandro |year=2008 |title=Plancha 10 - Rancho Grande - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QekhPeU95UXluWmM |publisher=INGEOMINAS |pages=1 |accessdate=2017-06-06}}
  • {{citation |last1=Zuluaga |first1=Carlos A. |last2=Ochoa |first2=Alberto |last3=Muñoz |first3=Carlos A. |last4=Dorado |first4=Camilo E. |last5=Guerrero |first5=Nathalia M. |last6=Martínez |first6=Ana M. |last7=Medina |first7=Paula A. |last8=Ocampo |first8=Edgar F. |last9=Pinilla and Paula A. Ríos, Bibiana P. Rodríguez, Edward A. Salazar, Vladimir L. Zapata |first9=Alejandro |year=2008 |title=Plancha 10bis - Rancho Grande - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QbjBhTUNNYXRpbzQ |publisher=INGEOMINAS |pages=1 |accessdate=2017-06-06}}

{{Paleontology in Colombia|state=collapsed}}

Category:Geologic formations of Colombia

Category:Neogene Colombia

Category:Miocene Series of South America

Category:Burdigalian

Category:Santacrucian

Category:Sandstone formations

Category:Siltstone formations

Category:Mudstone formations

Category:Beach deposits

Category:Shallow marine deposits

Category:Reservoir rock formations

Category:Seal rock formations

Category:Fossiliferous stratigraphic units of South America

Category:Paleontology in Colombia

Category:Geography of La Guajira Department