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- W2358898145 abstract "The Qinling is a complex continental collisional orogenic belt resulting from long-continued, multi-stage development. This paper reports the results of isotopic analyses of the SHRIMP zircon U-Pb ages and whole-rock Sm-Nd ages for the Foping metamorphic crystalline complex in the central part of the orogenic belt. The SHRIMP zircon U-Pb ages are very complex; except for small amount of Archean zircon, there are also significant amounts of Proterozoic to Phanerozoic zircon.The metamorphic peaks occurred at -1 200, 800, 400 and 200 Ma. Gneiss has a Nd model age tDM of 1 372-208 Ma. The main part of the Foping metamorphic crystalline rock series possibly formed in the Paleoproterozoic, with an age of -2 000 Ma. In the subsequent strong geological processes, a small amount of mantle material was introduced. The view of the formation of the rock series in the Neo-archean has not been verified by the authors. Archean crystalline basement rocks may occur or may have occurred in the central part of the Qinling orogenic belt." @default.
- W2358898145 created "2016-06-24" @default.
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- W2358898145 date "2004-01-01" @default.
- W2358898145 modified "2023-09-23" @default.
- W2358898145 title "Age and material composition of the Foping metamorphic crystalline complex in the Qinling Mountains : SHRIMP zircon U-Pb and whole-rock Sm-Nd geochronology" @default.
- W2358898145 hasPublicationYear "2004" @default.
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