Exhumation of the Neuquén Basin in the southern Central Andes (Malargüe fold and thrust belt) from field data and low-temperature thermochronology
Apatite fission-track analysis performed on eighteen Mesozoic sediment samples of the Neuquén Basin from the Southern Central Andes orogenic front between 35°30' and 37°S has revealed Campanian-Paleocene (75-55 Ma), late Eocene-early Oligocene (35-30 Ma) and middle Miocene (15-10 Ma) cooling ep...
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2015
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08959811_v64_n_p381_Folguera http://hdl.handle.net/20.500.12110/paper_08959811_v64_n_p381_Folguera |
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paper:paper_08959811_v64_n_p381_Folguera2023-06-08T15:48:50Z Exhumation of the Neuquén Basin in the southern Central Andes (Malargüe fold and thrust belt) from field data and low-temperature thermochronology AFTA apatite fission track analysis Exhumation Magmatic activity Neuquén Basin Southern Central Andes exhumation fission track dating fold and thrust belt low temperature magmatism Mesozoic thermochronology Andes Argentina Malargue Mendoza Neuquen Basin Apatite fission-track analysis performed on eighteen Mesozoic sediment samples of the Neuquén Basin from the Southern Central Andes orogenic front between 35°30' and 37°S has revealed Campanian-Paleocene (75-55 Ma), late Eocene-early Oligocene (35-30 Ma) and middle Miocene (15-10 Ma) cooling episodes. Each cooling episode corresponds closely with major unconformities observed in the preserved sedimentary sequences, and is associated with kilometer-scale additional burial and subsequent exhumation. A similar degree of cooling is inferred from associated vitrinite reflectance data. Late Eocene-early Oligocene exhumation is recognized only near the eastern orogenic front adjacent to the foreland in the southernmost part of the study area and may be related partly to within-plate magmatism and associated extension in the Palaoco Basin. The Campanian-Paleocene and middle Miocene cooling episodes are recognized more widely in the fold and thrust belt and appear to coincide with periods of eastward arc expansion and mountain building processes. © 2015 Elsevier Ltd. 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08959811_v64_n_p381_Folguera http://hdl.handle.net/20.500.12110/paper_08959811_v64_n_p381_Folguera |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
AFTA apatite fission track analysis Exhumation Magmatic activity Neuquén Basin Southern Central Andes exhumation fission track dating fold and thrust belt low temperature magmatism Mesozoic thermochronology Andes Argentina Malargue Mendoza Neuquen Basin |
| spellingShingle |
AFTA apatite fission track analysis Exhumation Magmatic activity Neuquén Basin Southern Central Andes exhumation fission track dating fold and thrust belt low temperature magmatism Mesozoic thermochronology Andes Argentina Malargue Mendoza Neuquen Basin Exhumation of the Neuquén Basin in the southern Central Andes (Malargüe fold and thrust belt) from field data and low-temperature thermochronology |
| topic_facet |
AFTA apatite fission track analysis Exhumation Magmatic activity Neuquén Basin Southern Central Andes exhumation fission track dating fold and thrust belt low temperature magmatism Mesozoic thermochronology Andes Argentina Malargue Mendoza Neuquen Basin |
| description |
Apatite fission-track analysis performed on eighteen Mesozoic sediment samples of the Neuquén Basin from the Southern Central Andes orogenic front between 35°30' and 37°S has revealed Campanian-Paleocene (75-55 Ma), late Eocene-early Oligocene (35-30 Ma) and middle Miocene (15-10 Ma) cooling episodes. Each cooling episode corresponds closely with major unconformities observed in the preserved sedimentary sequences, and is associated with kilometer-scale additional burial and subsequent exhumation. A similar degree of cooling is inferred from associated vitrinite reflectance data. Late Eocene-early Oligocene exhumation is recognized only near the eastern orogenic front adjacent to the foreland in the southernmost part of the study area and may be related partly to within-plate magmatism and associated extension in the Palaoco Basin. The Campanian-Paleocene and middle Miocene cooling episodes are recognized more widely in the fold and thrust belt and appear to coincide with periods of eastward arc expansion and mountain building processes. © 2015 Elsevier Ltd. |
| title |
Exhumation of the Neuquén Basin in the southern Central Andes (Malargüe fold and thrust belt) from field data and low-temperature thermochronology |
| title_short |
Exhumation of the Neuquén Basin in the southern Central Andes (Malargüe fold and thrust belt) from field data and low-temperature thermochronology |
| title_full |
Exhumation of the Neuquén Basin in the southern Central Andes (Malargüe fold and thrust belt) from field data and low-temperature thermochronology |
| title_fullStr |
Exhumation of the Neuquén Basin in the southern Central Andes (Malargüe fold and thrust belt) from field data and low-temperature thermochronology |
| title_full_unstemmed |
Exhumation of the Neuquén Basin in the southern Central Andes (Malargüe fold and thrust belt) from field data and low-temperature thermochronology |
| title_sort |
exhumation of the neuquén basin in the southern central andes (malargüe fold and thrust belt) from field data and low-temperature thermochronology |
| publishDate |
2015 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08959811_v64_n_p381_Folguera http://hdl.handle.net/20.500.12110/paper_08959811_v64_n_p381_Folguera |
| _version_ |
1768546728568422400 |