LA-ICP-MS zircon U-Pb geochronology to constrain the age of post-Neocomian continental deposits of the Cerrillos Formation, Atacama Region , northern Chile: tectonic and metallogenic implications

LA-ICP-MS zircon U-Pb geochronology to constrain the age of post-Neocomian continental deposits of the Cerrillos Formation, Atacama Region , northern Chile: tectonic and metallogenic implications

New U-Pb zircon dating of volcamc intercalations in the lower conglomeratic part of the Cerrillos Formation shows that its deposition extended in time at least from 110.7±1.7 to 99.7±1.6 Ma. The significantly younger U-Pb zircon age of 69.5±1.0 Ma obtained for the upper volcamc part of the Cerrillos...

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Autores principales: Maksaev,Víctor, Munizaga,Francisco, Valencia,Víctor, Barra,Fernando
Lenguaje:English
Publicado: Servicio Nacional de Geología y Minería (SERNAGEOMIN) 2009
Materias:
Cretaceous
Andes, U-Pb Geochronology
Cerrillos Formation
Porphyry copper
Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-71062009000200005
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