Sedimentology and sequence stratigraphy of a Tithonian–Valanginian carbonate ramp (Vaca Muerta Formation): a misunderstood exceptional source rock in the Southern Mendoza area of the Neuquén Basin, Argentina

The Vaca Muerta Formation (early Tithonian–early Valanginian) is a rhythmic succession of marls and limestones, cropping out in the Neuquén Basin, west-central Argentina. This lithostratigraphic unit was traditionally interpreted as basinal to slope deposits. Detailed facies analysis allows to diffe...

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Autores principales: Kietzmann, Diego A., Palma, Ricardo M., Riccardi, Alberto Carlos, Martín Chivelet, Javier, López Gómez, José
Formato: Articulo
Lenguaje:Inglés
Publicado: 2014
Materias:
Geología
Carbonate ramp
Source rock
Shale-gas systems
Depositional sequences
Jurassic-Cretaceous boundary
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/127854
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-127854
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Geología
Carbonate ramp
Source rock
Shale-gas systems
Depositional sequences
Jurassic-Cretaceous boundary
spellingShingle Geología
Carbonate ramp
Source rock
Shale-gas systems
Depositional sequences
Jurassic-Cretaceous boundary
Kietzmann, Diego A.
Palma, Ricardo M.
Riccardi, Alberto Carlos
Martín Chivelet, Javier
López Gómez, José
Sedimentology and sequence stratigraphy of a Tithonian–Valanginian carbonate ramp (Vaca Muerta Formation): a misunderstood exceptional source rock in the Southern Mendoza area of the Neuquén Basin, Argentina
topic_facet Geología
Carbonate ramp
Source rock
Shale-gas systems
Depositional sequences
Jurassic-Cretaceous boundary
description The Vaca Muerta Formation (early Tithonian–early Valanginian) is a rhythmic succession of marls and limestones, cropping out in the Neuquén Basin, west-central Argentina. This lithostratigraphic unit was traditionally interpreted as basinal to slope deposits. Detailed facies analysis allows to differentiate seven facies associations, representing basinal to middle ramp facies of a homoclinal ramp system prograding westward from the eastern margin, and slope facies attributed to a distally steepened ramp system that progrades eastward from the Andean volcanic arc in the west. Two sequence hierarchies are recognized: five third order depositional sequences, and fifteen fourth order high-frequency sequences. Fluctuations in organic matter content within the Vaca Muerta Formation suggest relationship with depositional sequences, finding the highest values associated with transgressive system tracts. This work represents an important advance in the understanding of the sedimentary and stratigraphic evolution of this exceptional unconventional reservoir. Our sequence stratigraphic approach contributes to the understanding of the relationship between organic matter, facies, and sea-level changes.
format Articulo
Articulo
author Kietzmann, Diego A.
Palma, Ricardo M.
Riccardi, Alberto Carlos
Martín Chivelet, Javier
López Gómez, José
author_facet Kietzmann, Diego A.
Palma, Ricardo M.
Riccardi, Alberto Carlos
Martín Chivelet, Javier
López Gómez, José
author_sort Kietzmann, Diego A.
title Sedimentology and sequence stratigraphy of a Tithonian–Valanginian carbonate ramp (Vaca Muerta Formation): a misunderstood exceptional source rock in the Southern Mendoza area of the Neuquén Basin, Argentina
title_short Sedimentology and sequence stratigraphy of a Tithonian–Valanginian carbonate ramp (Vaca Muerta Formation): a misunderstood exceptional source rock in the Southern Mendoza area of the Neuquén Basin, Argentina
title_full Sedimentology and sequence stratigraphy of a Tithonian–Valanginian carbonate ramp (Vaca Muerta Formation): a misunderstood exceptional source rock in the Southern Mendoza area of the Neuquén Basin, Argentina
title_fullStr Sedimentology and sequence stratigraphy of a Tithonian–Valanginian carbonate ramp (Vaca Muerta Formation): a misunderstood exceptional source rock in the Southern Mendoza area of the Neuquén Basin, Argentina
title_full_unstemmed Sedimentology and sequence stratigraphy of a Tithonian–Valanginian carbonate ramp (Vaca Muerta Formation): a misunderstood exceptional source rock in the Southern Mendoza area of the Neuquén Basin, Argentina
title_sort sedimentology and sequence stratigraphy of a tithonian–valanginian carbonate ramp (vaca muerta formation): a misunderstood exceptional source rock in the southern mendoza area of the neuquén basin, argentina
publishDate 2014
url http://sedici.unlp.edu.ar/handle/10915/127854
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