Counterclockwise tectonic rotation of the Del Salto Formation (Lower Permian), San Juan Province

A palaeomagnetic study was made on the Early Permian Del Salto Formation, exposed in the Western Precordillera (31.3°S, 69.2°W). Eleven sites were sampled for siltstone and fine-grained sandstone in the middle-upper part of the succession exposed in the creek at kilometre 114, San Juan. Standard dem...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Rapalini, Augusto Ernesto, Mena, Mabel
Publicado:	2001
Materias:	Andes Palaeomagnetism Precordillera Rotation Tectonics Upper Palaeozoic paleomagnetism Paleozoic tectonic rotation Argentina
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v56_n4_p494_Rapalini http://hdl.handle.net/20.500.12110/paper_00044822_v56_n4_p494_Rapalini
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00044822_v56_n4_p494_Rapalini
record_format	dspace
spelling	paper:paper_00044822_v56_n4_p494_Rapalini2023-06-08T14:25:33Z Counterclockwise tectonic rotation of the Del Salto Formation (Lower Permian), San Juan Province Rapalini, Augusto Ernesto Mena, Mabel Andes Palaeomagnetism Precordillera Rotation Tectonics Upper Palaeozoic paleomagnetism Paleozoic tectonic rotation Argentina A palaeomagnetic study was made on the Early Permian Del Salto Formation, exposed in the Western Precordillera (31.3°S, 69.2°W). Eleven sites were sampled for siltstone and fine-grained sandstone in the middle-upper part of the succession exposed in the creek at kilometre 114, San Juan. Standard demagnetization techniques permitted the identification of a characteristic remanence that showed good within-site consistency of direction at eight sites. Application of a tectonic correction showed that the characteristic remanence is pre-tectonic. A palaeomagnetic pole for the Del Salto Formation was computed, SC: 26.8°S, 357.0°E.δp = 4.4°, δm = 6.4°, N = 8. The position of SC indicates that the sampling locality underwent a counterclockwise rotation of about 40° around a vertical axis. The age of the rotation cannot be determined from the available data but it is most likely to have happened in either Permian or Late Cenozoic times. Fil:Rapalini, A.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Mena, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2001 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v56_n4_p494_Rapalini http://hdl.handle.net/20.500.12110/paper_00044822_v56_n4_p494_Rapalini
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Andes Palaeomagnetism Precordillera Rotation Tectonics Upper Palaeozoic paleomagnetism Paleozoic tectonic rotation Argentina
spellingShingle	Andes Palaeomagnetism Precordillera Rotation Tectonics Upper Palaeozoic paleomagnetism Paleozoic tectonic rotation Argentina Rapalini, Augusto Ernesto Mena, Mabel Counterclockwise tectonic rotation of the Del Salto Formation (Lower Permian), San Juan Province
topic_facet	Andes Palaeomagnetism Precordillera Rotation Tectonics Upper Palaeozoic paleomagnetism Paleozoic tectonic rotation Argentina
description	A palaeomagnetic study was made on the Early Permian Del Salto Formation, exposed in the Western Precordillera (31.3°S, 69.2°W). Eleven sites were sampled for siltstone and fine-grained sandstone in the middle-upper part of the succession exposed in the creek at kilometre 114, San Juan. Standard demagnetization techniques permitted the identification of a characteristic remanence that showed good within-site consistency of direction at eight sites. Application of a tectonic correction showed that the characteristic remanence is pre-tectonic. A palaeomagnetic pole for the Del Salto Formation was computed, SC: 26.8°S, 357.0°E.δp = 4.4°, δm = 6.4°, N = 8. The position of SC indicates that the sampling locality underwent a counterclockwise rotation of about 40° around a vertical axis. The age of the rotation cannot be determined from the available data but it is most likely to have happened in either Permian or Late Cenozoic times.
author	Rapalini, Augusto Ernesto Mena, Mabel
author_facet	Rapalini, Augusto Ernesto Mena, Mabel
author_sort	Rapalini, Augusto Ernesto
title	Counterclockwise tectonic rotation of the Del Salto Formation (Lower Permian), San Juan Province
title_short	Counterclockwise tectonic rotation of the Del Salto Formation (Lower Permian), San Juan Province
title_full	Counterclockwise tectonic rotation of the Del Salto Formation (Lower Permian), San Juan Province
title_fullStr	Counterclockwise tectonic rotation of the Del Salto Formation (Lower Permian), San Juan Province
title_full_unstemmed	Counterclockwise tectonic rotation of the Del Salto Formation (Lower Permian), San Juan Province
title_sort	counterclockwise tectonic rotation of the del salto formation (lower permian), san juan province
publishDate	2001
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v56_n4_p494_Rapalini http://hdl.handle.net/20.500.12110/paper_00044822_v56_n4_p494_Rapalini
work_keys_str_mv	AT rapaliniaugustoernesto counterclockwisetectonicrotationofthedelsaltoformationlowerpermiansanjuanprovince AT menamabel counterclockwisetectonicrotationofthedelsaltoformationlowerpermiansanjuanprovince
_version_	1768543012820877312

Counterclockwise tectonic rotation of the Del Salto Formation (Lower Permian), San Juan Province

Ejemplares similares