Gravity model northeast edge North Patagonian massif
We present a gravimetric study on the northeast edge of the North Patagonian massif in the province of Rio Negro, to ascertain the depth distribution of the different outcrop units in the study area, as well as the geometry of the Navarrete Plutonic Complex. The negative anomalies in the Bouguer res...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_0102261X_v28_n3_p463_Klinger |
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todo:paper_0102261X_v28_n3_p463_Klinger2023-10-03T14:57:24Z Gravity model northeast edge North Patagonian massif Klinger, F.L. Martinez, P. Rapalini, A.E. Gimenez, M.E. López de Luchi, M.G. Croce, F.A. Ruiz, F. Gravimetry Navarrete Pluton Through Yaminué Complex bedrock Cambrian gravimetry gravity anomaly gravity field lithology Mesozoic numerical model outcrop vertical distribution Patagonia Rio Negro [South America] We present a gravimetric study on the northeast edge of the North Patagonian massif in the province of Rio Negro, to ascertain the depth distribution of the different outcrop units in the study area, as well as the geometry of the Navarrete Plutonic Complex. The negative anomalies in the Bouguer residual map reproduce the lateral density contrast between what would be the bedrock of Cambrian age and the lithologic units of the Mesozoic age. The solutions of the analytical signal along with variations in the curve of the horizontal gradient of gravity, obtained along a profile across the outcrops of the Navarrete Plutonic Complex, show contacts between the intrusive body and the bedrock with different densities. Over this profile we obtained a 2D (dimensional) gravimetric forward model adjusted with the density data of the surface rocks. Above the outcrop of the Yaminué Complex there exists a gravimetric high which does not correspond to the density in this area. This is a new evidence that proves that it is a series of intrusions and thin subhorizontal tectonic slices and that its thickness is probably thin. On the other hand the Navarrete Pluton shows the greatest development in size and depth to the east of Treneta stream. © 2010 Sociedade Brasileira de Geofísica. Fil:Rapalini, A.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0102261X_v28_n3_p463_Klinger |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Gravimetry Navarrete Pluton Through Yaminué Complex bedrock Cambrian gravimetry gravity anomaly gravity field lithology Mesozoic numerical model outcrop vertical distribution Patagonia Rio Negro [South America] |
| spellingShingle |
Gravimetry Navarrete Pluton Through Yaminué Complex bedrock Cambrian gravimetry gravity anomaly gravity field lithology Mesozoic numerical model outcrop vertical distribution Patagonia Rio Negro [South America] Klinger, F.L. Martinez, P. Rapalini, A.E. Gimenez, M.E. López de Luchi, M.G. Croce, F.A. Ruiz, F. Gravity model northeast edge North Patagonian massif |
| topic_facet |
Gravimetry Navarrete Pluton Through Yaminué Complex bedrock Cambrian gravimetry gravity anomaly gravity field lithology Mesozoic numerical model outcrop vertical distribution Patagonia Rio Negro [South America] |
| description |
We present a gravimetric study on the northeast edge of the North Patagonian massif in the province of Rio Negro, to ascertain the depth distribution of the different outcrop units in the study area, as well as the geometry of the Navarrete Plutonic Complex. The negative anomalies in the Bouguer residual map reproduce the lateral density contrast between what would be the bedrock of Cambrian age and the lithologic units of the Mesozoic age. The solutions of the analytical signal along with variations in the curve of the horizontal gradient of gravity, obtained along a profile across the outcrops of the Navarrete Plutonic Complex, show contacts between the intrusive body and the bedrock with different densities. Over this profile we obtained a 2D (dimensional) gravimetric forward model adjusted with the density data of the surface rocks. Above the outcrop of the Yaminué Complex there exists a gravimetric high which does not correspond to the density in this area. This is a new evidence that proves that it is a series of intrusions and thin subhorizontal tectonic slices and that its thickness is probably thin. On the other hand the Navarrete Pluton shows the greatest development in size and depth to the east of Treneta stream. © 2010 Sociedade Brasileira de Geofísica. |
| format |
JOUR |
| author |
Klinger, F.L. Martinez, P. Rapalini, A.E. Gimenez, M.E. López de Luchi, M.G. Croce, F.A. Ruiz, F. |
| author_facet |
Klinger, F.L. Martinez, P. Rapalini, A.E. Gimenez, M.E. López de Luchi, M.G. Croce, F.A. Ruiz, F. |
| author_sort |
Klinger, F.L. |
| title |
Gravity model northeast edge North Patagonian massif |
| title_short |
Gravity model northeast edge North Patagonian massif |
| title_full |
Gravity model northeast edge North Patagonian massif |
| title_fullStr |
Gravity model northeast edge North Patagonian massif |
| title_full_unstemmed |
Gravity model northeast edge North Patagonian massif |
| title_sort |
gravity model northeast edge north patagonian massif |
| url |
http://hdl.handle.net/20.500.12110/paper_0102261X_v28_n3_p463_Klinger |
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AT klingerfl gravitymodelnortheastedgenorthpatagonianmassif AT martinezp gravitymodelnortheastedgenorthpatagonianmassif AT rapaliniae gravitymodelnortheastedgenorthpatagonianmassif AT gimenezme gravitymodelnortheastedgenorthpatagonianmassif AT lopezdeluchimg gravitymodelnortheastedgenorthpatagonianmassif AT crocefa gravitymodelnortheastedgenorthpatagonianmassif AT ruizf gravitymodelnortheastedgenorthpatagonianmassif |
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1807318181612617728 |