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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Autores principales:	Cabaleri,Nora G., Armella,Claudia, Cagnoni,Mariana, Ramos,Adriana, Valencio,Susana A.
Lenguaje:	English
Publicado:	Servicio Nacional de Geología y Minería (SERNAGEOMIN) 2003
Materias:	Lmestones Palaeoenvironmental analysis Callovian Neuquina Basin Argentina
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-02082003000200004
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spelling	oai:scielo:S0716-020820030002000042004-04-22Carbonate ramp facies at the Calabozo Formation (Middle Jurassic), Mendoza, ArgentinaCabaleri,Nora G.Armella,ClaudiaCagnoni,MarianaRamos,AdrianaValencio,Susana A. Lmestones Palaeoenvironmental analysis Callovian Neuquina Basin 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 /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 developedinfo:eu-repo/semantics/openAccessServicio Nacional de Geología y Minería (SERNAGEOMIN)Revista geológica de Chile v.30 n.2 20032003-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-02082003000200004en10.4067/S0716-02082003000200004
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Lmestones Palaeoenvironmental analysis Callovian Neuquina Basin Argentina
spellingShingle	Lmestones Palaeoenvironmental analysis Callovian Neuquina Basin Argentina Cabaleri,Nora G. Armella,Claudia Cagnoni,Mariana Ramos,Adriana Valencio,Susana A. Carbonate ramp facies at the Calabozo Formation (Middle Jurassic), Mendoza, Argentina
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
author	Cabaleri,Nora G. Armella,Claudia Cagnoni,Mariana Ramos,Adriana Valencio,Susana A.
author_facet	Cabaleri,Nora G. Armella,Claudia Cagnoni,Mariana Ramos,Adriana Valencio,Susana A.
author_sort	Cabaleri,Nora G.
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
publisher	Servicio Nacional de Geología y Minería (SERNAGEOMIN)
publishDate	2003
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-02082003000200004
work_keys_str_mv	AT cabalerinorag carbonaterampfaciesatthecalabozoformationmiddlejurassicmendozaargentina AT armellaclaudia carbonaterampfaciesatthecalabozoformationmiddlejurassicmendozaargentina AT cagnonimariana carbonaterampfaciesatthecalabozoformationmiddlejurassicmendozaargentina AT ramosadriana carbonaterampfaciesatthecalabozoformationmiddlejurassicmendozaargentina AT valenciosusanaa carbonaterampfaciesatthecalabozoformationmiddlejurassicmendozaargentina
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Carbonate ramp facies at the Calabozo Formation (Middle Jurassic), Mendoza, Argentina

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