U-Pb zircon ages of intermediate granulites and deformed granites in Dabie Mountains, Central China

• 作 者: 陈能松 游振东 索书田 杨勇 李惠民
• 机 构: Faculty of Geological Sciences, China University of Geosciences, Wuhan 430074, China,Faculty of Geol
• 出 处: Chinese Science Bulletin
• 发表日期: 1996年22期
• 关键词: zircon metamorphic deformed dating granite garnet quartz facies systematically m

In the Dabie area,the coesite- and microdiamond-bearing eclogites are wellexposed,and metamorphic rocks of granulite and amphibolite facies are much morewidespread.In recent years a number of methods are systematically applied to thedating of eclogite rocks.However,the age of granulitic rocks are scarcely reported.Thenewly obtained results of U-Pb dating of minor amount zircon single crystals extractedfrom the intermediate granulites and the deformed granites are reported.1 Geological aspects of sample

In the Dabie area, the coesite- and microdiamond-bearing eclogites are wellexposed, and metamorphic rocks of granulite and amphibolite facies are much morewidespread.In recent years a number of methods are systematically applied to thedating of eclogite rocks.However, the age of granulitic rocks are scarcely reported. newly obtained results of U-Pb dating of minor amount of zircon single crystals extracted from the intermediate granulites and the deformed granites are reported.1 Geological aspects of sample