Samarium neodymium direct dating of fluorite mineralization

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Sr-Nd isotopic data further demonstrate that the Malaysian granitoids, especially those of the Main Range, were hybridized melts derived from two “end-member” source regions, one of which is isotopically similar to the Kontum orthoamphibolites and the other akin to the Kontum paragneisses of the Indochina block.However, there are differences in the source rocks for the two provinces, and it is suggested in this paper that these are related to differing proportions of igneous and sedimentary protoliths.The mineralogy and geochemistry of the Eastern province granitoids, and their relationship with contemporaneous volcanics, confirm their I-type nature.The bulk liquid lines of descent of both granitic provinces largely overlap with one another.Daniele: No plans, as of now we are doing really well, my family is all very stubborn, including myself.

but there are offers flying around & meetings in the works so, who knows……We believe that the (U–Th)/He method, which has been applied before to thermochronological studies of apatite, zircon, titanite and hematite, can be used as a tool for direct dating of fluorite with microgram per gram levels of uranium and thorium.This paper benefited from the critical comments of Bernard Lehman, Finlay Stuart and Igor Villa. Martiny for improvement of the English and some useful comments on the manuscript. This age is also in concordance with the very few published ages of epithermal deposits in southern Mexico.The dating of fluorite by other methods, particularly for young samples, is a difficult task.This page is based on a Wikipedia article written by contributors (read/edit).