鄂东南地区何锡铺岩体锆石U-Pb定年、岩浆源区及其地质意义OA北大核心CSCDCSTPCD
Zircon U-Pb Dating and Magma Source of the Hexipu Pluton in Southeast Hubei Province and Its Geological Implications
鄂东南地区存在大量中酸性小岩体,部分小岩体与斑岩型铜钼金矿床关系密切.对位于鄂东南东区南部的何锡铺花岗闪长斑岩体进行了锆石U-Pb定年和Hf同位素组成测定.定年结果显示:花岗闪长斑岩样品的岩浆结晶年龄为(142±1)Ma,属早白垩世.这与鄂东南地区和九江—瑞昌地区含矿小岩体形成年代基本一致.何锡铺岩体锆石176 Hf/177 Hf比值为0.282 372～0.282 656,在t=142 Ma时,对应的εHf(t)值为-11.1～-1.1,平均值…查看全部>>
The Hexipu pluton is located in southern Hubei Province where the granodiorite porphyries and associated ore deposits are widely spread.This paper presents the integrated study of U-Pb age and Lu-Hf isotope composition in zircons from the Hexipu pluton.Zircon U-Pb age for Hexipu pluton is (142 ± 1) Ma,which suggests an Early Cretaceous emplacement,which is consistent with other ore-bearing granodiorite porphyries of southeast Hubei Province and Jiujiang-Ruic…查看全部>>
夏金龙;黄圭成;丁丽雪
中国地质调查局武汉地质调查中心,武汉430205中国地质调查局花岗岩成岩成矿地质研究中心,武汉430205中国地质调查局武汉地质调查中心,武汉430205
地质学
锆石U-Pb年龄Hf同位素岩浆源区花岗闪长斑岩鄂东南
zircon U-Pb ageHf isotopemagma sourcegranodiorite porphyrysoutheast Hubei Province
《地质科技情报》 2017 (6)
104-112,9
中国地质调查局地质调查项目(121201112086312120114039401121201009000150002)
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