Title: Zircon U-Pb dating of gneiss from Shizhuhe in North Dabie and its geologic implications.
Abstract: The zircon U Pb age of a monzogneiss from Shizhuhe in North Dabie was dated. The results indicate that the protolith of the gneiss was formed at 707±42Ma, and the rock underwent metamorphism at 229±18Ma. The ages suggest that the Indosinian metamorphism of the Dabie orogen affected not only the metamorphic rocks in South Dabie, and also some rocks in North Dabie. The gneiss with Indosinian metamorphic age, the occurrence of eclogites and eclogite facies relics in North Dabie suggest that North Dabie was a part of the subducted block as the South Dabie. The suture line between North China Block and Yangtze Block may be in the north of Dabie orogen.
Publication Year: 2001
Publication Date: 2001-01-01
Language: en
Type: article
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Cited By Count: 18
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