Circular structures of Bajada del Diablo (Argentina): Geophysical signatures
Bajada del Diablo is located in the Northern Patagonian Massif, Chubut, Argentina. The study area includes several circular structures found in Miocene olivine basalts of the Quiñelaf Eruptive Complex and in the Late Pliocene/Early Pleistocene Pampa Sastre conglomerates. An impact origin has been pr...
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todo:paper_0956540X_v205_n2_p876_Prezzi2023-10-03T15:52:07Z Circular structures of Bajada del Diablo (Argentina): Geophysical signatures Prezzi, C.B. Orgeira, M.J. Martinez, O. Acevedo, R.D. Ponce, F. Goldmann, G. Magneres, I. Rabassa, J. Gravity anomalies and Earth structure Magnetic anomalies: modelling and interpretation Palaeomagnetism applied to geological processes South america Basalt Geomagnetism Geophysics Silicate minerals Circular structures Electromagnetic surveys Geological process Gravity anomalies and Earth structures Late Pliocene Magnetic anomalies: modelling and interpretations Olivine basalts South America Structural geology basalt conglomerate data interpretation Earth structure geophysical survey gravity anomaly magnetic anomaly meteorite olivine paleomagnetism shock metamorphism Argentina Atlantic Ocean Chubut Patagonian Shelf Bajada del Diablo is located in the Northern Patagonian Massif, Chubut, Argentina. The study area includes several circular structures found in Miocene olivine basalts of the Quiñelaf Eruptive Complex and in the Late Pliocene/Early Pleistocene Pampa Sastre conglomerates. An impact origin has been proposed for these circular structures.With the aim of further investigate the proposed impact origin, topographic, gravimetric, magnetic, resistivity, palaeomagnetic and electromagnetic surveys in two circular structures ('8' and 'G') located in Pampa Sastre conglomerates and in basalts of the Quiñelaf Eruptive Complex were carried out. The new geophysical results support the hypothesis of an impact origin. However, the confirmation of such an origin through the findings of shock metamorphism evidences and/or the recovery of meteorites remains elusive. © The Authors 2016. Fil:Prezzi, C.B. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Orgeira, M.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Acevedo, R.D. 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_0956540X_v205_n2_p876_Prezzi |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Gravity anomalies and Earth structure Magnetic anomalies: modelling and interpretation Palaeomagnetism applied to geological processes South america Basalt Geomagnetism Geophysics Silicate minerals Circular structures Electromagnetic surveys Geological process Gravity anomalies and Earth structures Late Pliocene Magnetic anomalies: modelling and interpretations Olivine basalts South America Structural geology basalt conglomerate data interpretation Earth structure geophysical survey gravity anomaly magnetic anomaly meteorite olivine paleomagnetism shock metamorphism Argentina Atlantic Ocean Chubut Patagonian Shelf |
| spellingShingle |
Gravity anomalies and Earth structure Magnetic anomalies: modelling and interpretation Palaeomagnetism applied to geological processes South america Basalt Geomagnetism Geophysics Silicate minerals Circular structures Electromagnetic surveys Geological process Gravity anomalies and Earth structures Late Pliocene Magnetic anomalies: modelling and interpretations Olivine basalts South America Structural geology basalt conglomerate data interpretation Earth structure geophysical survey gravity anomaly magnetic anomaly meteorite olivine paleomagnetism shock metamorphism Argentina Atlantic Ocean Chubut Patagonian Shelf Prezzi, C.B. Orgeira, M.J. Martinez, O. Acevedo, R.D. Ponce, F. Goldmann, G. Magneres, I. Rabassa, J. Circular structures of Bajada del Diablo (Argentina): Geophysical signatures |
| topic_facet |
Gravity anomalies and Earth structure Magnetic anomalies: modelling and interpretation Palaeomagnetism applied to geological processes South america Basalt Geomagnetism Geophysics Silicate minerals Circular structures Electromagnetic surveys Geological process Gravity anomalies and Earth structures Late Pliocene Magnetic anomalies: modelling and interpretations Olivine basalts South America Structural geology basalt conglomerate data interpretation Earth structure geophysical survey gravity anomaly magnetic anomaly meteorite olivine paleomagnetism shock metamorphism Argentina Atlantic Ocean Chubut Patagonian Shelf |
| description |
Bajada del Diablo is located in the Northern Patagonian Massif, Chubut, Argentina. The study area includes several circular structures found in Miocene olivine basalts of the Quiñelaf Eruptive Complex and in the Late Pliocene/Early Pleistocene Pampa Sastre conglomerates. An impact origin has been proposed for these circular structures.With the aim of further investigate the proposed impact origin, topographic, gravimetric, magnetic, resistivity, palaeomagnetic and electromagnetic surveys in two circular structures ('8' and 'G') located in Pampa Sastre conglomerates and in basalts of the Quiñelaf Eruptive Complex were carried out. The new geophysical results support the hypothesis of an impact origin. However, the confirmation of such an origin through the findings of shock metamorphism evidences and/or the recovery of meteorites remains elusive. © The Authors 2016. |
| format |
JOUR |
| author |
Prezzi, C.B. Orgeira, M.J. Martinez, O. Acevedo, R.D. Ponce, F. Goldmann, G. Magneres, I. Rabassa, J. |
| author_facet |
Prezzi, C.B. Orgeira, M.J. Martinez, O. Acevedo, R.D. Ponce, F. Goldmann, G. Magneres, I. Rabassa, J. |
| author_sort |
Prezzi, C.B. |
| title |
Circular structures of Bajada del Diablo (Argentina): Geophysical signatures |
| title_short |
Circular structures of Bajada del Diablo (Argentina): Geophysical signatures |
| title_full |
Circular structures of Bajada del Diablo (Argentina): Geophysical signatures |
| title_fullStr |
Circular structures of Bajada del Diablo (Argentina): Geophysical signatures |
| title_full_unstemmed |
Circular structures of Bajada del Diablo (Argentina): Geophysical signatures |
| title_sort |
circular structures of bajada del diablo (argentina): geophysical signatures |
| url |
http://hdl.handle.net/20.500.12110/paper_0956540X_v205_n2_p876_Prezzi |
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