Abultamiento biodetrítico en la Formación Chachao (Valanginiano): Características y evolución ambiental, Malargüe, Mendoza

The China Echada mud mound is a small dome-shaped structure that reaches a diameter of 5,40 m and is up to 2,5 m high. The mound consists of a non-framework net mainly composed of a large amount of micrite and fragments of infaunal pelecypods, as well as sponges, echinoderms, gastropods, serpulids a...

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Detalles Bibliográficos
Autores: Palma, R.M., Meléndez, M.N., Calvo Sorando, José Pedro, Lanés, S.G., Meléndez Hevia, María Nieves
Tipo de recurso: artículo
Fecha de publicación:2000
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:español
OAI Identifier:oai:docta.ucm.es:20.500.14352/102928
Acceso en línea:https://hdl.handle.net/20.500.14352/102928
Access Level:acceso abierto
Palabra clave:552.5(82)
Calcareous rocks
Chachao formation
Cretaceous
Microfacies
Mud mounds
Neuquén basin
Rocas carbonáticas
Montículos biodetríticos
Cuenca Neuquina
Cretácico
Formación Chachao
Petrología
Geología
2506 Geología
2506.14 Petrología Sedimentaria
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oai_identifier_str oai:docta.ucm.es:20.500.14352/102928
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network_name_str España
repository_id_str
spelling Abultamiento biodetrítico en la Formación Chachao (Valanginiano): Características y evolución ambiental, Malargüe, MendozaBiodetrital mud mounds of chachao Formation (Valanginian): Features and environmental evolution, Malargüe, MendozaPalma, R.M.Meléndez, M.N.Calvo Sorando, José PedroLanés, S.G.Meléndez Hevia, María Nieves552.5(82)Calcareous rocksChachao formationCretaceousMicrofaciesMud moundsNeuquén basinRocas carbonáticasMontículos biodetríticosCuenca NeuquinaCretácicoFormación ChachaoPetrologíaGeología2506 Geología2506.14 Petrología SedimentariaThe China Echada mud mound is a small dome-shaped structure that reaches a diameter of 5,40 m and is up to 2,5 m high. The mound consists of a non-framework net mainly composed of a large amount of micrite and fragments of infaunal pelecypods, as well as sponges, echinoderms, gastropods, serpulids and microbial crusts. Scattered remains of oysters, forams, ostracods and bryozoans are also present. The core of the mud mound is massive and homogeneous, and it is flanked by microbial crusts and pelecypods, echinoderm-rich skeletal packstone to wackestone. The small mound is embedded in a monotonous succession of well-bedded bioclastic packstone to -wackestone. The presence of homogeneous micrite and peloidal micrite suggests that the in situ accumulation and early stabilization of micrite sediments may have been favoured by microbial activity, followed by rapid marine cementation. Thallasinoides isp. on both the top and flanks of the mound provide evidence that the sedimentation was interrupted and also would indicate a low rate of sedimentation. The high amount of matrix and spicules in wackestone facies also suggests quiet and deep water conditions just below the fair weather wave base. The mound occupied the external section of a homoclinal ramp. The maximum development of its growth is related to sea level rise (transgression and early highstand), as evidenced by continuous vertical accretion and a lack of allocthonous sedimentation.Asociación Geológica ArgentinaUniversidad Complutense de Madrid20002000-12-3020002000-12-30journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/102928reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Españolspaopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial 4.0 Internationalhttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/1029282026-06-02T12:44:21Z
dc.title.none.fl_str_mv Abultamiento biodetrítico en la Formación Chachao (Valanginiano): Características y evolución ambiental, Malargüe, Mendoza
Biodetrital mud mounds of chachao Formation (Valanginian): Features and environmental evolution, Malargüe, Mendoza
title Abultamiento biodetrítico en la Formación Chachao (Valanginiano): Características y evolución ambiental, Malargüe, Mendoza
spellingShingle Abultamiento biodetrítico en la Formación Chachao (Valanginiano): Características y evolución ambiental, Malargüe, Mendoza
Palma, R.M.
552.5(82)
Calcareous rocks
Chachao formation
Cretaceous
Microfacies
Mud mounds
Neuquén basin
Rocas carbonáticas
Montículos biodetríticos
Cuenca Neuquina
Cretácico
Formación Chachao
Petrología
Geología
2506 Geología
2506.14 Petrología Sedimentaria
title_short Abultamiento biodetrítico en la Formación Chachao (Valanginiano): Características y evolución ambiental, Malargüe, Mendoza
title_full Abultamiento biodetrítico en la Formación Chachao (Valanginiano): Características y evolución ambiental, Malargüe, Mendoza
title_fullStr Abultamiento biodetrítico en la Formación Chachao (Valanginiano): Características y evolución ambiental, Malargüe, Mendoza
title_full_unstemmed Abultamiento biodetrítico en la Formación Chachao (Valanginiano): Características y evolución ambiental, Malargüe, Mendoza
title_sort Abultamiento biodetrítico en la Formación Chachao (Valanginiano): Características y evolución ambiental, Malargüe, Mendoza
dc.creator.none.fl_str_mv Palma, R.M.
Meléndez, M.N.
Calvo Sorando, José Pedro
Lanés, S.G.
Meléndez Hevia, María Nieves
author Palma, R.M.
author_facet Palma, R.M.
Meléndez, M.N.
Calvo Sorando, José Pedro
Lanés, S.G.
Meléndez Hevia, María Nieves
author_role author
author2 Meléndez, M.N.
Calvo Sorando, José Pedro
Lanés, S.G.
Meléndez Hevia, María Nieves
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 552.5(82)
Calcareous rocks
Chachao formation
Cretaceous
Microfacies
Mud mounds
Neuquén basin
Rocas carbonáticas
Montículos biodetríticos
Cuenca Neuquina
Cretácico
Formación Chachao
Petrología
Geología
2506 Geología
2506.14 Petrología Sedimentaria
topic 552.5(82)
Calcareous rocks
Chachao formation
Cretaceous
Microfacies
Mud mounds
Neuquén basin
Rocas carbonáticas
Montículos biodetríticos
Cuenca Neuquina
Cretácico
Formación Chachao
Petrología
Geología
2506 Geología
2506.14 Petrología Sedimentaria
description The China Echada mud mound is a small dome-shaped structure that reaches a diameter of 5,40 m and is up to 2,5 m high. The mound consists of a non-framework net mainly composed of a large amount of micrite and fragments of infaunal pelecypods, as well as sponges, echinoderms, gastropods, serpulids and microbial crusts. Scattered remains of oysters, forams, ostracods and bryozoans are also present. The core of the mud mound is massive and homogeneous, and it is flanked by microbial crusts and pelecypods, echinoderm-rich skeletal packstone to wackestone. The small mound is embedded in a monotonous succession of well-bedded bioclastic packstone to -wackestone. The presence of homogeneous micrite and peloidal micrite suggests that the in situ accumulation and early stabilization of micrite sediments may have been favoured by microbial activity, followed by rapid marine cementation. Thallasinoides isp. on both the top and flanks of the mound provide evidence that the sedimentation was interrupted and also would indicate a low rate of sedimentation. The high amount of matrix and spicules in wackestone facies also suggests quiet and deep water conditions just below the fair weather wave base. The mound occupied the external section of a homoclinal ramp. The maximum development of its growth is related to sea level rise (transgression and early highstand), as evidenced by continuous vertical accretion and a lack of allocthonous sedimentation.
publishDate 2000
dc.date.none.fl_str_mv 2000
2000-12-30
2000
2000-12-30
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/102928
url https://hdl.handle.net/20.500.14352/102928
dc.language.none.fl_str_mv Español
spa
language_invalid_str_mv Español
language spa
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial 4.0 International
http://creativecommons.org/licenses/by-nc/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial 4.0 International
http://creativecommons.org/licenses/by-nc/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Asociación Geológica Argentina
publisher.none.fl_str_mv Asociación Geológica Argentina
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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