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- W2361484004 abstract "Kalaxianger porphyry copper ore belt lies on the southeastern margin of the Altay mountains, which is located southeast to the junction of the NNW Keketuohai-Ertai fault and the NW Erqis-Mayinebo fault. It is composed of Kalaxianger Ⅰ, Ⅱ, Ⅲ and Yuleken ore areas. Granodiorite porphyry and quartz diorite porphyrite are the main ore-bearing porphyries. Besides, basalts in the Middle Devonian Beitashan Formation are the main wall rocks, which are partly mineralized. Ore minerals consist of disseminated chalcopyrite, molybdenite, bornite and veinlet chalcopyrite. Zircons LA-ICP-MS U-Pb dating shows that the zircon ages of ore-bearing porphyries in Kalaxianger Ⅱ and Ⅲ ore areas is 390.2±4.9Ma and 393.3±9.8Ma, respectively. This result suggests that the intrusion epoch of ore-bearing porphyries is in Middle-Late Devonian. Combining regional tectonic setting, volcanic and intrusive rocks with some geochemical data, comprehensive analysis indicates that the ore-forming tectonic setting of the copper deposits is island arc in Middle-Late Devonian." @default.
- W2361484004 created "2016-06-24" @default.
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- W2361484004 date "2009-01-01" @default.
- W2361484004 modified "2023-09-28" @default.
- W2361484004 title "Ages of the zircons from ore-bearing porphyries in II-III ore area of Kalaxianger porphyry copper ore belt in Qinghe, Xinjiang and its geological significance" @default.
- W2361484004 hasPublicationYear "2009" @default.
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