The relationship of mantle-derived fluids to gold metallogenesis in the Jiaodong Peninsula: Evidence from D–O–C–S isotope systematics
The relationship of mantle-derived fluids to gold metallogenesis in the Jiaodong Peninsula: Evidence from D–O–C–S isotope systematics
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胶东半岛幔源流体与金矿成矿的关系——来自D−O−C−S同位素系统学的证据
DOI：
10.1016/j.oregeorev.2007.01.003
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发表时间：
2008-06
影响因子：
3.3
通讯作者：
中科院分区：
文献类型：
--
作者：
胶东半岛是中国最大的金矿产区，发现了三种类型的金矿床：石英脉型、断裂蚀变岩型和角砾岩型。前两者沿一组NE向断裂发育，赋存于160~150 Ma(黑云花岗岩)和130~126 Ma(花岗闪长岩)的花岗岩侵入岩和前寒武纪结晶基底的变质岩中。角砾岩型金矿系统主要分布在胶莱白垩纪盆地北缘，其矿化受拆离断裂和NE向断裂共同控制。对玲珑、焦家、三山岛、仓上、王儿山、大各庄、邓各庄、彭家矿、法云矿、大庄子等10个金矿床，以及玲珑侏罗纪黑云母花岗岩、郭家岭白垩纪花岗闪长岩和太古代片麻岩进行了稳定同位素测定。稳定同位素体系既反映了三种类型金矿床的类型，又表明它们属于同一成矿系统，热液来自地幔流体储集层，并与地壳流体混合。成矿年龄晚于侏罗纪黑云母花岗岩和白垩纪花岗闪长岩，但与煌斑岩和辉绿岩的121~114 Ma年龄重叠。导致金矿化和辉绿岩和煌斑岩岩脉逆行蚀变的热液流体相似，代表了一个富CO2和富钾的系统。该流体系统是中国东部白垩纪岩石圈减薄、软流圈上涌和地幔脱气的结果。
The largest gold district in China is the Jiaodong Peninsula, where three types of gold deposits are recognized: quartz vein, fracture-altered and breccia types. The first two developed along a group of NE-trending faults and are hosted by granitic intrusions, dated at 160 to 150 Ma (biotite granite) and 130 to 126 Ma (granodiorite), and by metamorphic rocks of the Precambrian crystalline basement. The breccia-type gold system is mainly located around the northern margin of the Jiaolai Cretaceous basin, where mineralisation is controlled by both detachment fractures and NE-trending faults. This study is based on stable isotope determinations from ten gold deposits, including Linglong, Jiaojia, Sanshandao, Cangshang, Wang'ershan, Dayigezhuang, Denggezhuang, Pengjiakuang, Fayunkuang and Dazhuangzi, as well as the Linglong Jurassic biotite granite, Guojialing Cretaceous granodiorite and Archean gneiss. The stable isotope systematics reflect the style of the three types of gold deposits, but also show that they belong to the same metallogenic system, in which the hydrothermal fluids were derived from a mantle fluid reservoir and mixed with crustal fluids. The ore-forming age is later than both the Jurassic biotite granite and Cretaceous granodiotite, but overlaps with the 121 to 114 Ma ages of lamprophyre and diabase dykes. The hydrothermal fluids that were responsible for both gold mineralisation and the retrograde alteration of the diabase and lamprophyre dykes are similar, and represent a CO2and potassium-rich system. This fluid system is interpreted to be the consequence of Cretaceous lithospheric thinning, asthenospheric upwelling and mantle degassing in Eastern China.
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DOI：
10.1111/j.1755-6724.2005.tb00915.x
发表时间：
2005-08
期刊：
Acta Geologica Sinica ‐ English Edition
影响因子：
--
作者：
Huang Huabin;Mao Jingwen;L. Dun-yi;Niu Shu-yin;Wang Yanbin;Li Yongfeng;Shi Ruruo
通讯作者：
Huang Huabin;Mao Jingwen;L. Dun-yi;Niu Shu-yin;Wang Yanbin;Li Yongfeng;Shi Ruruo
DOI：
10.1007/978-3-319-78527-1
发表时间：
1973
期刊：
Stable Isotope Geochemistry
影响因子：
--
作者：
J. Hoefs
通讯作者：
J. Hoefs
影响因子：
4.8
作者：
D. Groves
通讯作者：
D. Groves
DOI：
10.1086/378486
发表时间：
2003-11
期刊：
The Journal of Geology
影响因子：
--
作者：
Jian-wei Li;P. Vasconcelos;Jun Zhang;Mei‐Fu Zhou;Xiaojun Zhang;Feng-Hua Yang
通讯作者：
Jian-wei Li;P. Vasconcelos;Jun Zhang;Mei‐Fu Zhou;Xiaojun Zhang;Feng-Hua Yang
影响因子：
4.8
作者：
J. Lowenstern
通讯作者：
J. Lowenstern