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Seismogenic basin and range and intra-arc normal faulting in the central Mexican Volcanic Belt, Querétaro, México

2005; Wiley; Volume: 40; Issue: 2 Linguagem: Inglês

10.1002/gj.1004

1099-1034

Gerardo J. Aguírre‐Diaz, Jorge Nieto-Obregón, F. Ramón Zúñiga,

Geological and Geochemical Analysis

Geological JournalVolume 40, Issue 2 p. 215-243 Research Article Seismogenic basin and range and intra-arc normal faulting in the central Mexican Volcanic Belt, Querétaro, México Gerardo J. Aguirre-Díaz, Corresponding Author Gerardo J. Aguirre-Díaz ger@geociencias.unam.mx Centro de Geociencias, Universidad Nacional Autónoma de México, Campus Juriquilla, Querétaro, MéxicoCentro de Geociencias, UNAM, Campus Juriquilla, Apdo. Postal 1-742, Querétaro, Querétaro, 76001, México.Search for more papers by this authorJorge Nieto-Obregón, Jorge Nieto-Obregón Centro de Geociencias, Universidad Nacional Autónoma de México, Campus Juriquilla, Querétaro, MéxicoSearch for more papers by this authorF. Ramón Zúñiga, F. Ramón Zúñiga Centro de Geociencias, Universidad Nacional Autónoma de México, Campus Juriquilla, Querétaro, MéxicoSearch for more papers by this author Gerardo J. Aguirre-Díaz, Corresponding Author Gerardo J. Aguirre-Díaz ger@geociencias.unam.mx Centro de Geociencias, Universidad Nacional Autónoma de México, Campus Juriquilla, Querétaro, MéxicoCentro de Geociencias, UNAM, Campus Juriquilla, Apdo. Postal 1-742, Querétaro, Querétaro, 76001, México.Search for more papers by this authorJorge Nieto-Obregón, Jorge Nieto-Obregón Centro de Geociencias, Universidad Nacional Autónoma de México, Campus Juriquilla, Querétaro, MéxicoSearch for more papers by this authorF. Ramón Zúñiga, F. Ramón Zúñiga Centro de Geociencias, Universidad Nacional Autónoma de México, Campus Juriquilla, Querétaro, MéxicoSearch for more papers by this author First published: 15 April 2005 https://doi.org/10.1002/gj.1004Citations: 17AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract North-northwest normal faults intersect ENE normal faults in the vicinity of Querétaro City, in central México, affecting the Miocene–Pliocene northern-central sector of the Mexican Volcanic Belt province. This intersection produced an orthogonal arrangement of grabens, half-grabens and horsts that include the Querétaro graben. The NNW faults are part of the Taxco–San Miguel de Allende fault system, which is proposed here as part of the southernmost Basin and Range province in México. The ENE to E–W faults are part of the E–W oriented Chapala–Tula fault zone, which has been interpreted as an active intra-arc fault system of the Mexican Volcanic Belt. Seventy-four normal faults were mapped, of which the NNW faults are the largest and have the best morphological expression in the region. More numerous, although shorter, are the ENE faults. Total length of the ENE faults is greater than the total length of the NNW faults. Both sets are dominantly normal faults, indicating ENE extension for the NNW set and NNW extension for the ENE set. Field data indicate that displacement on the two fault sets has overlapped in time, as some NNW faults are younger than some ENE faults, which are supposed to be the younger ones. Seismicity in 1998 on a NNW fault indicates ENE active extension on the NNW faults. These observations support our interpretation that the northern Mexican Volcanic Belt lies on the boundary between the Basin and Range province, which is undergoing ENE extension, and the central Mexican Volcanic Belt province, which is undergoing northerly extension. The apparent overlap in space and time of displacements on the two fault sets reflects the difference in stress regime between the two provinces. Copyright © 2005 John Wiley & Sons, Ltd. Citing Literature Volume40, Issue2April 2005Pages 215-243 RelatedInformation