【摘 要】
：
河南八庙与陕西青山金红石矿床同处于秦岭构造带、西峡-南湾地向斜褶皱束,其赋矿层位龟山组与牛耳川组层位相当,时代归属曾存在争议。近年来,对其化石研究资料将二者均划归为
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河南八庙与陕西青山金红石矿床同处于秦岭构造带、西峡-南湾地向斜褶皱束,其赋矿层位龟山组与牛耳川组层位相当,时代归属曾存在争议。近年来,对其化石研究资料将二者均划归为中泥盆统。现测试含矿岩石中角闪石的40Ar-39Ar年龄为371.3±9.3Ma,为其时代归属提供了新的佐证。综合分析认为,八庙-青山金红石矿赋矿地层为中泥盆统信阳群龟山组(牛耳川组),其变质时代为晚泥盆世,是华力西运动的产物。
The Eight Temples in Henan Province and the Qingshan Rutile Deposit in Shaanxi Province are all located in the Qinling structural zone and the Xixia-Nanwan synclines fold belt. The Tuishan Formation and the Niu Er Chuan Formation in the ore-hosting layers are quite similar. In recent years, both of its fossil research data will be classified as the Middle Devonian. The 40Ar-39Ar age of amphibole in ore-bearing rocks is now 371.3 ± 9.3Ma, which provides new evidence for its age. According to a comprehensive analysis, the Baomiao-Qingshan rutile ore-hosting stratum is the Tuifeng Formation (Niu Er-chuan Formation) of the Xinyang Formation in the Middle Devonian. Its metamorphic age was Late Devonian and is a product of the Variscan movement.
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