Petrography and geochemistry of dolomite-rich condensed sections: fluid characterisation and evolution (Hecho Group, South Central Pyrenean Basin, Spain)

Autor: Caja, Miguel Ángel, Marfil, Rafaela, Garcia, Daniel, Remacha, Eduard, Sadoon Morad, Howri Mansurbeg, Amorosi, Alessandro
Rok vydání: 2016
DOI: 10.6084/m9.figshare.3180301
Popis: The Eocene turbidite systems of the South-Central Pyrenees (Hecho Group) provide exceptional outcrops of overbank deposits related to major channel complexes. These deposits often bear distinctive “yellowish beds” (YB) within the monotonous bluish-grey sandstones and claystones. These beds are small, variably dolomitic, and they get a yellowish staining upon exposure. Petrographical and geochemical data support their origin as condensed surfaces, and their interest as time markers and potential seals.
Databáze: OpenAIRE