Horizontal stress Field evolution from Eocene to present in Neuquen Basin

Continuity and evolution in time of the horizontal stress direction in the Neuquen Basin area, derived from the analysis of recent borehole data and orientation of volcanic dykes measured in outcrop in the Cara Cura and Reyes Ranges is presented. The bitumen dykes along the Neuquén Basin were formed...

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Autores principales:	Guzmán, Cecilia Griselda, Cristallini, Ernesto Osvaldo, García, Víctor Hugo, Yagupsky, Daniel Leonardo, Bechis, Florencia
Publicado:	2011
Materias:	Breakout Central andes Dikes Retroarc Stress basin evolution bitumen borehole dike Eocene Paleocene stress field structural geology uncertainty analysis Argentina Neuquen Basin Cura
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v68_n4_p542_Guzman http://hdl.handle.net/20.500.12110/paper_00044822_v68_n4_p542_Guzman
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00044822_v68_n4_p542_Guzman
record_format	dspace
spelling	paper:paper_00044822_v68_n4_p542_Guzman2023-06-08T14:26:35Z Horizontal stress Field evolution from Eocene to present in Neuquen Basin Guzmán, Cecilia Griselda Cristallini, Ernesto Osvaldo García, Víctor Hugo Yagupsky, Daniel Leonardo Bechis, Florencia Breakout Central andes Dikes Retroarc Stress basin evolution bitumen borehole dike Eocene Paleocene stress field structural geology uncertainty analysis Argentina Neuquen Basin Cura Continuity and evolution in time of the horizontal stress direction in the Neuquen Basin area, derived from the analysis of recent borehole data and orientation of volcanic dykes measured in outcrop in the Cara Cura and Reyes Ranges is presented. The bitumen dykes along the Neuquén Basin were formed during Paleocene - Eocene in a context where the maximum stress was horizontal and had a NE. Within the analyzed volcanic dykes two major groups have been recognized, group i (NE orientation) and group ii (NNE orientation) and a secondary group iii (NW orientation). The age of these dykes is still not well established, but they were related to a Late Oligocene - Miocene magmatic event. Both for the volcanic and bitumen dykes a type i group (ENE-NE orientation) has been recognized, evidencing the maximum stress direction at the time they were formed. Beyond the uncertainties in the volcanic and bitumen dykes age, it is interpreted that during great part of Tertiary, the orientation of the horizontal maximum stress was NE. However, the breakout data shows that the actual horizontal maximum stress is a little different with a ENE mean direction. This change in the direction of stress is consistent with the change in the subduction vector produced between the Eocene and today. Fil:Guzmán, C.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Cristallini, E.O. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:García, V.H. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Yagupsky, D.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Bechis, F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2011 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v68_n4_p542_Guzman http://hdl.handle.net/20.500.12110/paper_00044822_v68_n4_p542_Guzman
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Breakout Central andes Dikes Retroarc Stress basin evolution bitumen borehole dike Eocene Paleocene stress field structural geology uncertainty analysis Argentina Neuquen Basin Cura
spellingShingle	Breakout Central andes Dikes Retroarc Stress basin evolution bitumen borehole dike Eocene Paleocene stress field structural geology uncertainty analysis Argentina Neuquen Basin Cura Guzmán, Cecilia Griselda Cristallini, Ernesto Osvaldo García, Víctor Hugo Yagupsky, Daniel Leonardo Bechis, Florencia Horizontal stress Field evolution from Eocene to present in Neuquen Basin
topic_facet	Breakout Central andes Dikes Retroarc Stress basin evolution bitumen borehole dike Eocene Paleocene stress field structural geology uncertainty analysis Argentina Neuquen Basin Cura
description	Continuity and evolution in time of the horizontal stress direction in the Neuquen Basin area, derived from the analysis of recent borehole data and orientation of volcanic dykes measured in outcrop in the Cara Cura and Reyes Ranges is presented. The bitumen dykes along the Neuquén Basin were formed during Paleocene - Eocene in a context where the maximum stress was horizontal and had a NE. Within the analyzed volcanic dykes two major groups have been recognized, group i (NE orientation) and group ii (NNE orientation) and a secondary group iii (NW orientation). The age of these dykes is still not well established, but they were related to a Late Oligocene - Miocene magmatic event. Both for the volcanic and bitumen dykes a type i group (ENE-NE orientation) has been recognized, evidencing the maximum stress direction at the time they were formed. Beyond the uncertainties in the volcanic and bitumen dykes age, it is interpreted that during great part of Tertiary, the orientation of the horizontal maximum stress was NE. However, the breakout data shows that the actual horizontal maximum stress is a little different with a ENE mean direction. This change in the direction of stress is consistent with the change in the subduction vector produced between the Eocene and today.
author	Guzmán, Cecilia Griselda Cristallini, Ernesto Osvaldo García, Víctor Hugo Yagupsky, Daniel Leonardo Bechis, Florencia
author_facet	Guzmán, Cecilia Griselda Cristallini, Ernesto Osvaldo García, Víctor Hugo Yagupsky, Daniel Leonardo Bechis, Florencia
author_sort	Guzmán, Cecilia Griselda
title	Horizontal stress Field evolution from Eocene to present in Neuquen Basin
title_short	Horizontal stress Field evolution from Eocene to present in Neuquen Basin
title_full	Horizontal stress Field evolution from Eocene to present in Neuquen Basin
title_fullStr	Horizontal stress Field evolution from Eocene to present in Neuquen Basin
title_full_unstemmed	Horizontal stress Field evolution from Eocene to present in Neuquen Basin
title_sort	horizontal stress field evolution from eocene to present in neuquen basin
publishDate	2011
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v68_n4_p542_Guzman http://hdl.handle.net/20.500.12110/paper_00044822_v68_n4_p542_Guzman
work_keys_str_mv	AT guzmanceciliagriselda horizontalstressfieldevolutionfromeocenetopresentinneuquenbasin AT cristalliniernestoosvaldo horizontalstressfieldevolutionfromeocenetopresentinneuquenbasin AT garciavictorhugo horizontalstressfieldevolutionfromeocenetopresentinneuquenbasin AT yagupskydanielleonardo horizontalstressfieldevolutionfromeocenetopresentinneuquenbasin AT bechisflorencia horizontalstressfieldevolutionfromeocenetopresentinneuquenbasin
_version_	1768545306882867200

Horizontal stress Field evolution from Eocene to present in Neuquen Basin

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