The Seca Formation is a

Late Eocene The Priabonian is, in the International Commission on Stratigraphy, ICS's geologic timescale, the latest age (geology), age or the upper stage (stratigraphy), stage of the Eocene epoch (geology), Epoch or series (stratigraphy), Series. It spans ...

(

Divisaderan The Divisaderan age is a South American land mammal age, covering a period of geologic time (42.0–36.0 Mya (unit), Ma) within the Middle Eocene, Middle and Late Eocene epochs of the Paleogene. It follows the Mustersan age and is followed by the T ...

Tinguirirican The Tinguirirican () age is a period of geologic time (36.0–29.0 Mya (unit), Ma) within the Eocene, Late Eocene and Oligocene, Early Oligocene epochs of the Paleogene, used more specifically within the South American land mammal age, SALMA classi ...

in the SALMA classification) geologic formation of the

Progreso Basin Progreso or Progresso (Spanish, Portuguese and Italian for "Progress") may refer to: Places Angola * Progresso, Belas, Luanda, Angola Argentina * Progreso, Argentina Belize * Progresso, Belize, village in the Corozal District Bolivia * ...

in southwestern

Ecuador Ecuador, officially the Republic of Ecuador, is a country in northwestern South America, bordered by Colombia on the north, Peru on the east and south, and the Pacific Ocean on the west. It also includes the Galápagos Province which contain ...

. The

shale Shale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of Clay mineral, clay minerals (hydrous aluminium phyllosilicates, e.g., Kaolinite, kaolin, aluminium, Al2Silicon, Si2Oxygen, O5(hydroxide, OH)4) and tiny f ...

s of the formation have provided fossils of the marine snake '' Pterosphenus sheppardi''.Ancón
at

Fossilworks Fossilworks was a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database, a large relational database assembled by hundreds of paleontologists from around the world. History Fossilworks was cr ...

.org

Description

The Seca Formation, part of the

Ancón Group Ancón may refer to: Places Antiquity * Ancon (Picenum), town of ancient Picenum, now in Italy * Ancon (Pontus), town of ancient Pontus, now in Turkey Ecuador * Ancón, Ecuador, a city in Guayas, Ecuador Panama * Ancón, Panama, a city in central ...

, conformably overlies the Socorro Formation and is overlain by the

Punta Ancón Formation Punta is an Afro-Indigenous dance and cultural music deeply rooted in the cultural traditions of the Garifuna of Honduras. It heavily incorporates West African/Central African drumming, the dance primarily of Angola and Congo origins. The musi ...

. The Seca Formation comprises grey to greenish

s deposited in a marine platform with submarine fans environment.Lorenzo et al., 2018, p.34 The formation is a

reservoir rock A petroleum reservoir or oil and gas reservoir is a subsurface accumulation of hydrocarbons contained in porous or fractured rock formations. Such reservoirs form when kerogen (ancient plant matter) is created in surrounding rock by the presenc ...

,Lorenzo et al., 2018, p.32 and potential

source rock In petroleum geology, source rock is a sedimentary rock which has generated hydrocarbons or which has the potential to generate hydrocarbons. Source rocks are one of the necessary elements of a working petroleum system. They are organic-rich sedim ...

,Lorenzo et al., 2018, p.31 in the oil-rich Progreso Basin.

References

Bibliography

* {{citation , last=Lorenzo , first=Erica , year=2018 , title=Correlación geoquímica entre crudos y rocas del sistema petrolero de la península de Santa Elena y el golfo de Guayaquil , url=http://www.scielo.org.co/pdf/boge/v40n1/0120-0283-boge-40-01-00031.pdf , journal= Boletín de Geología , volume=40 , pages=31–42 , doi=10.18273/revbol.v40n1-2018002 , accessdate=2018-09-11

Description

See also

References

Bibliography

Further reading