Browsing by Subject "U-PB AGES"

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MAGMATIC RELATIONSHIPS AND AGES OF CARIBBEAN ISLAND ARC THOLEIITES, BONINITES AND RELATED FELSIC ROCKS, DOMINICAN REPUBLIC

Escuder Viruete J.; Díaz de Neira A.; Hernáiz Huerta P.P.; Senz J.G.; Monthel J.; Joubert M.; Lopera E.; Ullrich T.; Friedman R.; Mortensen J.; Pérez-Estaún A. (2006)

Located in the Cordillera Oriental of the Dominican Republic, the Early Cretaceous Los Ranchos Fm (LRF) comprises a > 3-km thick sequence of volcanic and volcaniclastic rocks with variable geochemical characteristics, which ...
NEW EARLY TO MIDDLE TRIASSIC U-PB AGES FROM SOUTH CHINA: CALIBRATION WITH AMMONOID BIOCHRONOZONES AND IMPLICATIONS FOR THE TIMING OF THE TRIASSIC BIOTIC RECOVERY

Ovtcharova M.; Schaltegger U.; Bucher H.; Galfetti T.; Brayard A.; Guex J. (2006)

New zircon U-Pb ages are proposed for late Early and Middle Triassic volcanic ash layers from the Luolou and Baifeng formations (northwestern Guangxi, South China). These ages are based on analyses of single, thermally ...

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