秦岭岩群
- 网络qinling group
秦岭岩群
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东秦岭秦岭岩群是一套中深变质结晶岩系,主要由片麻岩、斜长角闪岩、变粒岩和大理岩组成。
The Qinling Group is lithologically composed of four closely related but different rock sequences , gneiss , amphibolite , metadolerite and marble .
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报道了北秦岭地块中秦岭岩群夕线黑云石英片岩61个碎屑锆石测点的207Pb/206Pb年龄测试结果,其中15个测点在SHRIMPⅡ上进行,46个测点来自LA-ICPMS的测定结果。
U-Pb isotopic ages of 61 detrital zircon grains from the sillimanite-biotite-quartz schist of the Qinling Group in the North Qinling metamorphic terrane are reported in this paper . Of the 61 zircon grains , 15 were measured by SHRIMP ⅱ, and 46 by LA-ICPMS .
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秦岭岩群的组成、主变质期和变形期的时代及性质;
The composition , age of main metamorphism and defomation event and its tectonic setting ;