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- W2387346540 abstract "The Sehe monzonitic granite crops out in the Devonian,and is of fault contact to the late Devonian. The granite is composed mainly of potassium feldspars,plagioclases and quartzs. Its high SiO2(71%~77%) and alkali content (K2O+Na2O=7.43%~8.50%) and low CaO content (0.25%~2.81%) suggests that it belongs to weakly peraluminous (A/CNK1.05). A high LREE and HREE fractionation [(La/Yb)N=4.23],distinct Eu negative anomaly (δEu=0.511),enrichment in large ion lithophile elements Rb,Th,K,La and Cs,and depletion in Ba,Nb,Sr,P and Ti,all indicate the feature of post-collisional granite. The geochemical signature of granite gravel in Late Devonian is similar to that of the Sehe granite. The SHRIMP dating results of granite and granite gravels are similar (709±5Ma and 700±11Ma). The discovery of Neoproterozoic post-collision granite in East Qinling indicates a post-orogenic extensional setting in the East Qinling area,thus providing evidence for the tectonic system transition from protozoic to paleozoic in the East Qinling orogenic belt." @default.
- W2387346540 created "2016-06-24" @default.
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- W2387346540 date "2009-01-01" @default.
- W2387346540 modified "2023-09-24" @default.
- W2387346540 title "Geochemical Charactericstic and Zircon SHRIMP U-Pb Dating of Sehe Granite in Shanyang County,Shanxi Province and Its Geological Significance" @default.
- W2387346540 hasPublicationYear "2009" @default.
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