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四川大水沟碲矿是世界唯一独立大型碲矿床 .对其含矿围岩 (斜长角闪岩 )的形成年龄进行了研究 .单颗粒锆石的U Pb上交点年龄为 (936± 10 7)Ma ,它代表了斜长角闪岩的原岩———拉斑玄武岩喷发时间 .下交点年龄为 (135.5± 6 .9)Ma则可解释为与区域上已知的动热事件一致的低角闪岩相变质作用时间 .根据锆石U Pb定年结果对包括大水沟碲矿含矿斜长角闪岩在内的溜沙坡群的时代进行了讨论 .
The Dashuigou tellurium in Sichuan Province is the only independent large Tellurium deposit in the world, and the formation ages of its ore-bearing wall rocks (amphibolite) have been studied.The U Pb dating point of single grain zircon is (936 ± 10 7) ) Ma, which represents the protolith - tholeigenic basalt eruption time of the amphibolite, and the lower cricket age of (135.5 ± 6.9) Ma can be interpreted as consistent with known thermal events on the area Low-amphibole facies metamorphic time.According to the U-Pb dating of zircons, the age of the silt-hosting group including the amphibolites of the Dansigou tellurium ore is discussed.