Thesis Collection
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Browsing by Author "Pankhurst, R. J."
Now showing items 1-4 of 4
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Datación Sm-Nd del metamorfismo en ía Sierra de las Imanas (Sierras Pampeanas Occidentales, Argentina)
(Sociedad Geológica de España, 2003)Sm-Nd garnet geochronology of a migmatite gneiss from the Sierra de las Imanas (Western Sierras Pampeanas) has provided a peak metamorphic age of 464.6 ± 4.5 Ma, i.e., Middle Ordovician, corresponding to the Famatinian ... -
Datación U-Pb SHRIMP de circones detríticos en paranfibolitas neoproterozoicas de las secuencia Difunta Correa (Sierras Pampeanas Occidentales, Argentina)
(Sociedad Geológica de España, 2005)The Neoproterozoic Difunta Correa meta-sedimentary sequence (DCSS) of Western Sierras Pampeanas is a cover to a rejuvenated Grenvillian basement. The Western Sierras Pampeanas are allegedly part of the exotic Precordillera ... -
Edad y origen de la fluorita del yacimiento de La Nueva (Cabalango, Córdoba, Argentina) en base a geoquímica de isótopos radiogénicos (Nd y Sr)
(Sociedad Geológica de España, 1995)The fluorite mineralization from the La Nueva Mine, has a S m-Nd age of 130±19 Ma, and thus must be related to the Lower Cretaceous late -Gondwanic extensional and magmatic event that affected the Sierras Pampeanas Basement ... -
Geocronología por el método Rb-Sr de las episienitas de la Sierra del Guadarrama, S.C.E., España
(Sociedad Geológica de España, 1992)Rb-Sr dating by internal isochrones of the episyenitea (hydrothermally dequartzified and alkalimetasomaticed granites) from the Sierra de Guadarrama gives an age of 274+-6 M.y., i.e.. Early Permian. The epysienites were ...
