CAJ | 학술논문

提跃进山铜金矿床是完达山活动带的典型矿床，位于密山—敦化深断裂北侧。本文对含矿花岗斑岩开展了锆石LA-ICP-MS U-Pb测年、主量和微量元素的研究，厘定岩体的形成时代，探讨了成矿构造背景。结果表明与成矿密切相关的花岗斑岩的年龄为（109.17±0.91）Ma。它们为过铝质钙碱性系列岩石，富集Rb、Ba、La、Nd、Hf等元素，亏损Nb、Sr、P、Ti等元素，具俯冲带岩浆岩的基本特征，这些暗示它们形成于岛弧或活动大陆边缘环境。结合岩体的地球化学特征和完达山成矿带的构造岩浆演化，认为该矿床形成于岛弧构造背景，其形成与中生代太平洋的俯冲及早白垩世晚期东亚东部岩浆活动陆缘迁移、构造单元转化有关。
제약진산동금광상시완체산활동대적전형광상，위우밀산—돈화심단렬북측。본문대함광화강반암개전료고석LA-ICP-MS U-Pb측년、주량화미량원소적연구，전정암체적형성시대，탐토료성광구조배경。결과표명여성광밀절상관적화강반암적년령위（109.17±0.91）Ma。타문위과려질개감성계렬암석，부집Rb、Ba、La、Nd、Hf등원소，우손Nb、Sr、P、Ti등원소，구부충대암장암적기본특정，저사암시타문형성우도호혹활동대륙변연배경。결합암체적지구화학특정화완체산성광대적구조암장연화，인위해광상형성우도호구조배경，기형성여중생대태평양적부충급조백성세만기동아동부암장활동륙연천이、구조단원전화유관。
The Yuejinshan Cu-Au deposit, located in southeast Heilongjiang Province, is a typical deposit which occurs in the north of Mishan-Dunhua Deep fracture of the Wandashan metallogenic belt. The authors carried out LA-ICP-MS zircon U-Pb dating of main and trace elements in the granite porphyry, and discussed the chronology of the rock mass and the tectonic setting. The results indicate that the ore-related Yuejinshan granite porphyry has a concordia LA-ICP-MS zircon U-Pb age of (109.17 ± 0.91) Ma, which is basically in good consistency with the weighted average age. The Yuejinshan granite porphyry has a geochemical affinity with subduction magmas, characterized by peraluminous nature, enrichment of LILIs (Rb, Ba, La, Nd and Hf), and depletion of <br> HFSE (Nb, Sr, P and Ti). The geochronologic and geochemical characteristics of the Yuejinshan granite porphyry, combined with tectonic evolution of the Wandashan metallogenic belt, suggest that the deposit was formed in a island arc or active continental margin setting and that its formation was probably related to the subduction of the Paleo-Pacific Ocean during the Mesozoic.