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首页> 外文期刊>Ore Geology Reviews: Journal for Comprehensive Studies of Ore Genesis and Ore Exploration >The Ordovician igneous rocks with high Sr/Y at the Tongshan porphyry copper deposit, satellite of the Duobaoshan deposit, and their metallogenic role
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The Ordovician igneous rocks with high Sr/Y at the Tongshan porphyry copper deposit, satellite of the Duobaoshan deposit, and their metallogenic role

机译：奥陶诺维安在铜山斑岩铜矿，卫星卫星的铜山矿床，Duobaoshan沉积物的卫星和它们的成矿作用中发泡岩石。

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摘要

A strong link between high Sr/Y arc magmas and porphyry Cu-Mo-Au deposits has been recognized in recent years. The Tongshan and Duobaoshan deposits are representative large Cu-Mo-Au deposits in NE China. We report LA-ICP-MS zircon U-Pb crystallization age of 471.5 +/- 1.3 Ma for Tongshan ore related granitoid. Re-Os isotopic analyses of the two chalcopyrite samples from Tongshan deposit show a model age range of 470.2-477.1 Ma. The Duobaoshan and Tongshan ore-related granitoids show higher Sr/Y and La/Yb ratios. The delta S-34 values of sulphides from the Duobaoshan and Tongshan deposits vary from 2.3%. to 0.0%0, belonging to a magmatic-hydrothermal system. The Pb isotopic ratios of the sulphides from the Duobaoshan and Tongshan deposit range from 17.201 to 18.453 for Pb-206/Pb-204, 15.445 to 15.551 for Pb-207/Pb-204, and 36.974 to 37.999 for Pb-208/Pb-204, indicating the addition of lower crustal material. The Duobaoshan and Tongshan granitoids were formed in a subduction-related continental arc setting, produced by partial melting of juvenile hydrous basalts underplating the deep continental crust during the Ordovician. (C) 2017 Elsevier B.V. All rights reserved.
机译：近年来，高级SR / Y弧磁带和斑岩Cu-Mo-Au沉积物之间的一个强大的联系。铜山和Duobaoshan矿床是NE中国的代表性大型铜MO-AU矿床。我们向铜山矿石相关的花岗素报告着471.5 +/- 1.3 mA的La-ICP-MS锆石U-PB结晶年龄。来自铜山矿床的两种黄铜矿样品的重新锻炼分析显示，模型年龄范围为470.2-477.1 mA。 Duobaoshan和铜山矿石相关的花岗糖显示出更高的Sr / Y和La / Yb比率。来自duobaoshan和铜山矿床的硫化物的δs-34值可计为2.3％。达到0.0％0，属于岩浆水热系统。对于PB-207 / PB-204，PB-206 / PB-204,15.445至15.551，PB-207 / PB-204，36.974至37.999的PB-207 / PB-204，铜床和铜山的Pb同位素比率为17.201至18.453。 204，表明添加较低的地壳材料。 Duobaoshan和铜山花岗岩形成在俯冲相关的大陆弧环境中，通过在奥陶语期间覆盖的少年泥质地壳的少年泥质沼气的部分熔化产生。 （c）2017 Elsevier B.v.保留所有权利。

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