Geology and emplacement history of the Nuevo Rosario plutonic suite in the southern Peninsular Rangers batholith, Baja California, México
The Cretaceous Nuevo Rosarito plutonic suite is located in the southern part of the Peninsular Ranges batholith (~28.7 °N). It is hosted by a suite of Jurassic granitoid rocks dated at 151.6 Ma (U-Pb single zircon ages) and by Late Jurassic - Early Cretaceous volcanic and volcaniclastic rocks. Host...
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| Formato: | Artículo |
| Lenguaje: | inglés |
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Sociedad Geológica Mexicana
2012
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| Materias: | |
| Acceso en línea: | http://eprints.uanl.mx/11857/1/v29n1a1.pdf |
| _version_ | 1824413468742123520 |
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| author | Peña Alonso, Tomás Alejandro Delgado Argote, Luis Alberto Weber, Bodo Velasco Tapia, Fernando Valencia, Víctor |
| author_facet | Peña Alonso, Tomás Alejandro Delgado Argote, Luis Alberto Weber, Bodo Velasco Tapia, Fernando Valencia, Víctor |
| author_sort | Peña Alonso, Tomás Alejandro |
| collection | Repositorio Institucional |
| description | The Cretaceous Nuevo Rosarito plutonic suite is located in the southern part of the Peninsular Ranges batholith (~28.7 °N). It is hosted by a suite of Jurassic granitoid rocks dated at 151.6 Ma (U-Pb single zircon ages) and by Late Jurassic - Early Cretaceous volcanic and volcaniclastic rocks. Host rocks display solid-state fabrics related to a deformational event that occurred before the emplacement of the Nuevo Rosarito plutonic suite. The composition of the suite ranges from gabbro to granite. The suite is sub-alkaline and it is divided into three mafic and four felsic units. The geochemical composition of the felsic units varies from metaluminous to peraluminous, and shows arc-related geochemical signatures. Structural and geochemical data suggest that the emplacement of the plutonic suite took place in two episodes. The first one is defined by the intrusion of mafic units in which dioritic bodies were emplaced within a gabbroic body along NNE-SSW oriented extensional fractures. The second episode is defined by the intrusion of three felsic units during a NE-side up, syn-emplacement movement that occurred around 108.4 Ma. |
| format | Article |
| id | eprints-11857 |
| institution | UANL |
| language | English |
| publishDate | 2012 |
| publisher | Sociedad Geológica Mexicana |
| record_format | eprints |
| spelling | eprints-118572017-01-19T21:42:35Z http://eprints.uanl.mx/11857/ Geology and emplacement history of the Nuevo Rosario plutonic suite in the southern Peninsular Rangers batholith, Baja California, México Peña Alonso, Tomás Alejandro Delgado Argote, Luis Alberto Weber, Bodo Velasco Tapia, Fernando Valencia, Víctor QE Geología The Cretaceous Nuevo Rosarito plutonic suite is located in the southern part of the Peninsular Ranges batholith (~28.7 °N). It is hosted by a suite of Jurassic granitoid rocks dated at 151.6 Ma (U-Pb single zircon ages) and by Late Jurassic - Early Cretaceous volcanic and volcaniclastic rocks. Host rocks display solid-state fabrics related to a deformational event that occurred before the emplacement of the Nuevo Rosarito plutonic suite. The composition of the suite ranges from gabbro to granite. The suite is sub-alkaline and it is divided into three mafic and four felsic units. The geochemical composition of the felsic units varies from metaluminous to peraluminous, and shows arc-related geochemical signatures. Structural and geochemical data suggest that the emplacement of the plutonic suite took place in two episodes. The first one is defined by the intrusion of mafic units in which dioritic bodies were emplaced within a gabbroic body along NNE-SSW oriented extensional fractures. The second episode is defined by the intrusion of three felsic units during a NE-side up, syn-emplacement movement that occurred around 108.4 Ma. Sociedad Geológica Mexicana 2012 Article PeerReviewed text en cc_by_nc_nd http://eprints.uanl.mx/11857/1/v29n1a1.pdf http://eprints.uanl.mx/11857/1.haspreviewThumbnailVersion/v29n1a1.pdf Peña Alonso, Tomás Alejandro y Delgado Argote, Luis Alberto y Weber, Bodo y Velasco Tapia, Fernando y Valencia, Víctor (2012) Geology and emplacement history of the Nuevo Rosario plutonic suite in the southern Peninsular Rangers batholith, Baja California, México. Boletín de la sociedad geológica mexicana, 29 (1). pp. 1-23. ISSN 1405-3322 |
| spellingShingle | QE Geología Peña Alonso, Tomás Alejandro Delgado Argote, Luis Alberto Weber, Bodo Velasco Tapia, Fernando Valencia, Víctor Geology and emplacement history of the Nuevo Rosario plutonic suite in the southern Peninsular Rangers batholith, Baja California, México |
| thumbnail | https://rediab.uanl.mx/themes/sandal5/images/online.png |
| title | Geology and emplacement history of the Nuevo Rosario plutonic suite in the southern Peninsular Rangers batholith, Baja California, México |
| title_full | Geology and emplacement history of the Nuevo Rosario plutonic suite in the southern Peninsular Rangers batholith, Baja California, México |
| title_fullStr | Geology and emplacement history of the Nuevo Rosario plutonic suite in the southern Peninsular Rangers batholith, Baja California, México |
| title_full_unstemmed | Geology and emplacement history of the Nuevo Rosario plutonic suite in the southern Peninsular Rangers batholith, Baja California, México |
| title_short | Geology and emplacement history of the Nuevo Rosario plutonic suite in the southern Peninsular Rangers batholith, Baja California, México |
| title_sort | geology and emplacement history of the nuevo rosario plutonic suite in the southern peninsular rangers batholith baja california mexico |
| topic | QE Geología |
| url | http://eprints.uanl.mx/11857/1/v29n1a1.pdf |
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