Capotes Formation
{{Short description|Geological formation in Colombia}}
{{Infobox rockunit
| name = Capotes Formation
| period = Albian
| age = Early Albian
~{{fossil range|112|108}}
| image =
| imagesize =
| caption =
| type = Geological formation
| prilithology = Calcareous black shale
| otherlithology = Gypsum
| unitof = Villeta Group
| subunits =
| underlies = Hiló Formation
| overlies = El Peñón Fm., Socotá Fm.
| thickness = {{convert|550|m|ft|abbr=on}}
| area =
| map = Blakey 105Ma - COL.jpg
| map_caption = Paleogeography of Northern South America
105 Ma, {{small|by Ron Blakey}}
| location =
| coordinates = {{coord|5|15|13|N|74|20|28|W|display=inline,title}}
| region = Eastern Ranges, Andes
| country = Colombia
| extent =
| namedfor = Hacienda Capotes, Viotá
| namedby = Cáceres & Etayo
| year_ts = 1969
| location_ts = Bituima-Guayabal
| coordinates_ts = {{coord|5|15|13|N|74|20|28|W|display=inline}}
| paleocoordinates_ts =
| region_ts = Cundinamarca
| country_ts = Colombia
| thickness_ts = {{convert|550|m|ft|abbr=on}}
}}
The Capotes Formation ({{langx|es|Formación Capotes}}, Kic) is a geological formation of the Altiplano Cundiboyacense, Eastern Ranges of the Colombian Andes. The formation consists of calcareous black shales containing gypsum and ammonites and dates to the Early Cretaceous period; Early Albian epoch and has an approximate thickness at its type section of {{convert|550|m|ft}}.
Etymology
Description
= Lithologies =
The Capotes Formation has a thickness at its type section of approximately {{convert|550|m|ft}}, and is characterised by a sequence of organic rich calcareous shales with gypsum. Fossils of Douvilleiceras solitae, Neodeshayesites columbianus and Paracrioceras sp. have been found in the Capotes Formation.Acosta & Ulloa, 2002, p.42Moreno Bedmar et al., 2015
= Stratigraphy and depositional environment =
The Capotes Formation, part of the Villeta Group, overlies the Socotá and El Peñón Formations, and is overlain by the Hiló Formation. The age has been estimated to be Early Albian. Stratigraphically, the formation is time equivalent with the Simití Formation.Acosta & Ulloa, 2001, p.91 The formation has been deposited in a quiet enclosed shallow marine environment. In terms of sequence stratigraphy, the Albian of current central Colombia experienced a transgressive to highstand sequence.Villamil, 2012, p.169
Outcrops
{{Location map | Altiplano Cundiboyacense
| width = 250
| lat_deg = 5.253664
| lon_deg = -74.341091
| label =
| float = left
| position = right
| mark = Green pog.svg
| marksize = 12
| caption = Type locality of the Capotes Formation to the west of the Altiplano Cundiboyacense
}}
The Capotes Formation is apart from its type locality along the road between Bituima and Guayabal, also found north and southeast of Viotá,Plancha 246, 1998 and north and east of La Mesa.Plancha 227, 1998
{{clear left}}
See also
{{Portal|Colombia|Geology}}
:{{icon|FAC}} Geology of the Eastern Hills
:{{icon|B}} Geology of the Ocetá Páramo
:{{icon|C}} Geology of the Altiplano Cundiboyacense
{{clear}}
References
{{reflist|30em}}
= Bibliography =
- {{citation |last1=Acosta Garay |first1=Jorge E. |last2=Ulloa Melo |first2=Carlos E. |year=2002 |title=Mapa Geológico del Departamento de Cundinamarca - 1:250,000 - Memoria explicativa |url=http://nebula.wsimg.com/ca3411dab87400d504f8461f0256772a?AccessKeyId=75F883B260454DDA3D4B&disposition=0&alloworigin=1 |publisher=INGEOMINAS |pages=1–108 |accessdate=2017-06-05}}
- {{citation |last1=Acosta Garay |first1=Jorge |last2=Ulloa Melo |first2=Carlos E |year=2001 |title=Geología de la Plancha 208 Villeta - 1:100,000 |url=http://aplicaciones1.sgc.gov.co/Bodega/i_vector/130/10/0100/20136/documento/pdf/0101201361101000.pdf |publisher=INGEOMINAS |pages=1–84 |accessdate=2017-06-05 |archive-date=2017-03-24 |archive-url=https://web.archive.org/web/20170324084417/http://aplicaciones1.sgc.gov.co/Bodega/i_vector/130/10/0100/20136/documento/pdf/0101201361101000.pdf |url-status=dead }} {{Webarchive|url=https://web.archive.org/web/20170324084417/http://aplicaciones1.sgc.gov.co/Bodega/i_vector/130/10/0100/20136/documento/pdf/0101201361101000.pdf |date=2017-03-24 }}
- {{citation |last1=Moreno Bedmar |first1=J.A |last2=Martínez |first2=R. |last3=Rodríguez |first3=J.V. |last4=Bermúdez |first4=Hermann Durán |year=2015 |title=Algunos ammonites del Cretácico de la Cordillera Oriental de Colombia |url=https://www.researchgate.net/publication/280317360 |publisher=XV Congreso Colombiano de Geología, 2015 |pages=_ |accessdate=2017-06-05}}
- {{citation |last1=Vargas Quintero |first1=Jhonn |last2=Barrantas |first2=Daniel Mauricio |year=2013 |title=Efectos del tránsito en la estabilidad de taludes |publisher=Universidad La Javeriana |pages=1–185}}
- {{citation |last=Villamil |first=Tomas |year=2012 |title=Chronology Relative Sea Level History and a New Sequence Stratigraphic Model for Basinal Cretaceous Facies of Colombia |publisher=Society for Sedimentary Geology (SEPM) |pages=161–216}}
== Maps ==
- {{citation |last1=Ulloa |first1=Carlos |last2=Acosta |first2=Jorge |year=1998 |title=Plancha 208 - Villeta - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QMjhLeWJ0aU1Za1U |publisher=INGEOMINAS |pages=1 |accessdate=2017-06-06}}
- {{citation |last1=Ulloa |first1=Carlos E |last2=Rodríguez |first2=Erasmo |last3=Acosta |first3=Jorge E. |year=1998 |title=Plancha 227 - La Mesa - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QR0k3cWk2aTlwbEk |publisher=INGEOMINAS |pages=1 |accessdate=2017-06-06}}
- {{citation |last1=Acosta |first1=Jorge E. |last2=Ulloa |first2=Carlos E. |year=1998 |title=Plancha 246 - Fusagasugá - 1:100,000 |url=https://drive.google.com/open?id=0BwFQPMJEi17QNkY5UEloZU9pdEk |publisher=INGEOMINAS |pages=1 |accessdate=2017-06-06}}
External links
- {{citation |last1=Gómez |first1=J. |last2=Montes |first2=N.E. |last3=Nivia |first3=Á. |last4=Diederix |first4=H. |year=2015 |title=Plancha 5-09 del Atlas Geológico de Colombia 2015 – escala 1:500,000 |url=https://www.researchgate.net/publication/309533589 |publisher=Servicio Geológico Colombiano |pages=1 |accessdate=2017-06-05}}
Category:Geologic formations of Colombia
Category:Lower Cretaceous Series of South America