Doklady Earth Sciences · 2010 · 11 citations · 1 references
Natural SciencesEarth SciencesGeologyGeoarchaeologyGeochemistryStratigraphyIsotope GeochemistryPetrographySource Rock GeologyStable Isotope AnalysisStable Isotope GeochemistryStable Isotope PaleoclimatologyGranite GeochemistryGranite PetrologyIsotope-based Age Estimation
Stanniferrous granite-leucogranite massifs in Vietnam to which the bedrock and placer commercial deposits of cassiterite are associated (Timtuc etc.) are of late Cretaceous age (∼85 Ma by Rb-Sr and Ar-Ar isotope dating). These massifs are presented by stocks and fracture intrusions (to 100 km 2 in area) of simple homodromic structure: biotite granites ⇒ two-mica and muscovite leucogranites ⇒ topaz-containing aplites ⇒ rare-metal pegmatites.
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