Carbonate ramp facies at the Calabozo Formation (Middle Jurassic), Mendoza, Argentina

The limestones of the Calabozo Formation of early Callovian age, crop out in the Neuquén Basin, southwestern Mendoza Province, Argentina. Facies/microfacies analysis at Arroyo El Plomo, west of Malargüe, shows that the limestones of the Calabozo Formation originated during a transgressive /regressiv...

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Detalles Bibliográficos
Publicado: 2003
Materias:
Argentina
Callovian
Lmestones
Neuquén Basin
Palaeoenvironmental analysis
carbonate ramp
Jurassic
Mendoza
South America
Western Hemisphere
World
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07160208_v30_n2_p205_Cabaleri
http://hdl.handle.net/20.500.12110/paper_07160208_v30_n2_p205_Cabaleri
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_07160208_v30_n2_p205_Cabaleri
record_format dspace
spelling paper:paper_07160208_v30_n2_p205_Cabaleri2023-06-08T15:42:51Z Carbonate ramp facies at the Calabozo Formation (Middle Jurassic), Mendoza, Argentina Argentina Callovian Lmestones Neuquén Basin Palaeoenvironmental analysis carbonate ramp Jurassic Argentina Mendoza South America Western Hemisphere World The limestones of the Calabozo Formation of early Callovian age, crop out in the Neuquén Basin, southwestern Mendoza Province, Argentina. Facies/microfacies analysis at Arroyo El Plomo, west of Malargüe, shows that the limestones of the Calabozo Formation originated during a transgressive /regressive episode over the delta-margin facies of the Lajas Formation (late Bajocian-Callovian), with a change from siliciclastic to carbonate sedimentation. An extensive layer of floatstone marks the beginning of this stage. Within a ramp environment, a well represented mid-ramp subenvironment can be distinguished, consisting of a subtidal facies arrangement (wackestones, packstones, packstones with channels and floatstones) and an inner ramp subenvironment, characterized by a system of ooidal bars (grainstones) with tidal channels (floatstones) and predominantly intertidal facies passing into peritidal, and supratidal facies; (boundstones). Three shallowing-upward cycles were recognized, the lower and middle ones being characteristic of the mid- ramp. The upper cycle is the best developed and consists of a middle ramp lower hemicycle and an inner ramp upper hemicycle. The Calabozo, Formation is capped by deposits corresponding to a supratidal environment with restricted circulation, on top of which the evaporitic succession of the early Callovian Tábanos Formation is developed. 2003 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07160208_v30_n2_p205_Cabaleri http://hdl.handle.net/20.500.12110/paper_07160208_v30_n2_p205_Cabaleri
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Argentina
Callovian
Lmestones
Neuquén Basin
Palaeoenvironmental analysis
carbonate ramp
Jurassic
Argentina
Mendoza
South America
Western Hemisphere
World
spellingShingle Argentina
Callovian
Lmestones
Neuquén Basin
Palaeoenvironmental analysis
carbonate ramp
Jurassic
Argentina
Mendoza
South America
Western Hemisphere
World
Carbonate ramp facies at the Calabozo Formation (Middle Jurassic), Mendoza, Argentina
topic_facet Argentina
Callovian
Lmestones
Neuquén Basin
Palaeoenvironmental analysis
carbonate ramp
Jurassic
Argentina
Mendoza
South America
Western Hemisphere
World
description The limestones of the Calabozo Formation of early Callovian age, crop out in the Neuquén Basin, southwestern Mendoza Province, Argentina. Facies/microfacies analysis at Arroyo El Plomo, west of Malargüe, shows that the limestones of the Calabozo Formation originated during a transgressive /regressive episode over the delta-margin facies of the Lajas Formation (late Bajocian-Callovian), with a change from siliciclastic to carbonate sedimentation. An extensive layer of floatstone marks the beginning of this stage. Within a ramp environment, a well represented mid-ramp subenvironment can be distinguished, consisting of a subtidal facies arrangement (wackestones, packstones, packstones with channels and floatstones) and an inner ramp subenvironment, characterized by a system of ooidal bars (grainstones) with tidal channels (floatstones) and predominantly intertidal facies passing into peritidal, and supratidal facies; (boundstones). Three shallowing-upward cycles were recognized, the lower and middle ones being characteristic of the mid- ramp. The upper cycle is the best developed and consists of a middle ramp lower hemicycle and an inner ramp upper hemicycle. The Calabozo, Formation is capped by deposits corresponding to a supratidal environment with restricted circulation, on top of which the evaporitic succession of the early Callovian Tábanos Formation is developed.
title Carbonate ramp facies at the Calabozo Formation (Middle Jurassic), Mendoza, Argentina
title_short Carbonate ramp facies at the Calabozo Formation (Middle Jurassic), Mendoza, Argentina
title_full Carbonate ramp facies at the Calabozo Formation (Middle Jurassic), Mendoza, Argentina
title_fullStr Carbonate ramp facies at the Calabozo Formation (Middle Jurassic), Mendoza, Argentina
title_full_unstemmed Carbonate ramp facies at the Calabozo Formation (Middle Jurassic), Mendoza, Argentina
title_sort carbonate ramp facies at the calabozo formation (middle jurassic), mendoza, argentina
publishDate 2003
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07160208_v30_n2_p205_Cabaleri
http://hdl.handle.net/20.500.12110/paper_07160208_v30_n2_p205_Cabaleri
_version_ 1768546726830931968

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