3-D crustal-scale gravity model of the San Rafael Block and Payenia volcanic province in Mendoza, Argentina
The San Rafael Block (SRB) is part of one of the main retroarc volcanic provinces in southern Central Andes in Mendoza, Argentina. This block is located in the Andean foothills between the orogenic front and foreland basement uplifts of late Miocene age. In order to analyze the geochronological evol...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2018-01-01
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| Series: | Geoscience Frontiers |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1674987117300518 |
| _version_ | 1797706734118109184 |
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| author | Daniel Richarte Marianela Lupari Agustina Pesce Silvina Nacif Mario Gimenez |
| author_facet | Daniel Richarte Marianela Lupari Agustina Pesce Silvina Nacif Mario Gimenez |
| author_sort | Daniel Richarte |
| collection | DOAJ |
| description | The San Rafael Block (SRB) is part of one of the main retroarc volcanic provinces in southern Central Andes in Mendoza, Argentina. This block is located in the Andean foothills between the orogenic front and foreland basement uplifts of late Miocene age. In order to analyze the geochronological evolution of the Quaternary volcanism in the region, several geologic and geophysical studies have been conducted. Nevertheless, the crust, where the SRB is located, has not been well characterized yet.
Based on gravimetric and magnetic data, together with isostatic and elastic thickness analyses, we modeled the crustal structure of the area. Information obtained has allowed us to understand the crust where the SRB and the Payenia volcanic province are located. Bouguer anomalies indicate that the SRB presents higher densities to the North of Cerro Nevado and Moho calculations suggest depths for this block between 40 and 50 km. Determinations of elastic thickness would indicate that the crust supporting the San Rafael Block presents values of approximately 10 km, being enough to support the block loading. However, in the Payenia region, elastic thickness values are close to zero due to the regional temperature increase. |
| first_indexed | 2024-03-12T05:56:42Z |
| format | Article |
| id | doaj.art-a37485ce67614850ac2e207afb2ad109 |
| institution | Directory Open Access Journal |
| issn | 1674-9871 |
| language | English |
| last_indexed | 2024-03-12T05:56:42Z |
| publishDate | 2018-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Geoscience Frontiers |
| spelling | doaj.art-a37485ce67614850ac2e207afb2ad1092023-09-03T04:33:03ZengElsevierGeoscience Frontiers1674-98712018-01-019123924810.1016/j.gsf.2017.03.0043-D crustal-scale gravity model of the San Rafael Block and Payenia volcanic province in Mendoza, ArgentinaDaniel Richarte0Marianela Lupari1Agustina Pesce2Silvina Nacif3Mario Gimenez4Instituto Geofísico-Sismológico Volponi, Universidad Nacional de San Juan, ArgentinaInstituto Geofísico-Sismológico Volponi, Universidad Nacional de San Juan, ArgentinaInstituto Geofísico-Sismológico Volponi, Universidad Nacional de San Juan, ArgentinaInstituto Geofísico-Sismológico Volponi, Universidad Nacional de San Juan, ArgentinaInstituto Geofísico-Sismológico Volponi, Universidad Nacional de San Juan, ArgentinaThe San Rafael Block (SRB) is part of one of the main retroarc volcanic provinces in southern Central Andes in Mendoza, Argentina. This block is located in the Andean foothills between the orogenic front and foreland basement uplifts of late Miocene age. In order to analyze the geochronological evolution of the Quaternary volcanism in the region, several geologic and geophysical studies have been conducted. Nevertheless, the crust, where the SRB is located, has not been well characterized yet. Based on gravimetric and magnetic data, together with isostatic and elastic thickness analyses, we modeled the crustal structure of the area. Information obtained has allowed us to understand the crust where the SRB and the Payenia volcanic province are located. Bouguer anomalies indicate that the SRB presents higher densities to the North of Cerro Nevado and Moho calculations suggest depths for this block between 40 and 50 km. Determinations of elastic thickness would indicate that the crust supporting the San Rafael Block presents values of approximately 10 km, being enough to support the block loading. However, in the Payenia region, elastic thickness values are close to zero due to the regional temperature increase.http://www.sciencedirect.com/science/article/pii/S1674987117300518San Rafael BlockPayenia3-D crustal modelAsthenospheric wedge |
| spellingShingle | Daniel Richarte Marianela Lupari Agustina Pesce Silvina Nacif Mario Gimenez 3-D crustal-scale gravity model of the San Rafael Block and Payenia volcanic province in Mendoza, Argentina Geoscience Frontiers San Rafael Block Payenia 3-D crustal model Asthenospheric wedge |
| title | 3-D crustal-scale gravity model of the San Rafael Block and Payenia volcanic province in Mendoza, Argentina |
| title_full | 3-D crustal-scale gravity model of the San Rafael Block and Payenia volcanic province in Mendoza, Argentina |
| title_fullStr | 3-D crustal-scale gravity model of the San Rafael Block and Payenia volcanic province in Mendoza, Argentina |
| title_full_unstemmed | 3-D crustal-scale gravity model of the San Rafael Block and Payenia volcanic province in Mendoza, Argentina |
| title_short | 3-D crustal-scale gravity model of the San Rafael Block and Payenia volcanic province in Mendoza, Argentina |
| title_sort | 3 d crustal scale gravity model of the san rafael block and payenia volcanic province in mendoza argentina |
| topic | San Rafael Block Payenia 3-D crustal model Asthenospheric wedge |
| url | http://www.sciencedirect.com/science/article/pii/S1674987117300518 |
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