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| 新疆双亚幔柱模式及其控矿机制 |
| XIA Dong1,NIU Shuyin2, PENG Yuxuan1,WANG Lei 1,YANG Wan-zhi1 , YANG Zai-feng1,XU Yong-bo1 |
| 投稿时间：2014-02-19 修订日期：2014-02-19 |
| DOI： |
| 中文关键词: “8” 字型成矿 双亚幔柱模式 幔枝构造 盆地内找矿 石油、煤炭地质资料整合 |
| 英文关键词:"8" shaped mineralization Double-secondary mantle plume Mantle branch structure Basin prospecting Petroleum geology data integration |
| 基金项目:我国典型金属矿科学基地研究项目(编号：200911007)和国家自然科学(编号：40872137)联合资助。 |
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| 中文摘要: |
| 本文主要探讨新疆金属矿产成矿机制问题。通过分析、总结新疆地质理论研究成果,结合地质、矿产特征及准噶尔、塔里木盆地、天山造山带岩浆岩、断裂构造、地球物理、地球化学、石油和煤炭地质、地震学等综合信息,提出准噶尔、塔里木双亚幔柱是新疆金属矿产“8”字型分布的主要控制因素。二者主体形成时期分别为石炭纪与二叠纪。准噶尔亚幔柱斜向天山造山带,塔里木亚幔柱近垂直,前者作用强烈、短暂,后者温和而漫长。两盆地周缘薄弱带与内部构造体制为地幔深源岩浆及后碰撞造山岩浆的上侵提供了必要通道。天山造山带形成于晚石炭,它受双亚幔柱挤压隆起作用有限,成矿局部叠加。二叠纪以来,以相对南北向挤压为主,为能源矿产主要形成时期,阿尔金、昆仑等山脉在新近纪快速隆升。基于幔枝构造启示,建设性提出：金属矿产地质找矿领域与石油、煤炭及铀矿地质勘查领域展开合作,共享基础地质资料,于准噶尔、塔里木两盆地内进行金属矿产综合找矿的观点。填补“8” 字型中的空白,为金属矿产找矿指明方向,预测巨大前景。 |
| 英文摘要: |
| This paper mainly discusses the issue of metal mineral mineralization mechanism in Xinjiang.According to analyzing and summarizing geology theoretical research achievements,in combination with characteristics of geology and mineral in Xinjiang,in addtion Junggar,Tarim Basin,Tianshan orogenic magmatic rocks,tectonic,geophysics,geochemistry,petroleum and coal geology,seismology and other comprehensive information,it is found that Junggar and Tarim secondary mantle plumes are the predominant factors of metal minerals "8"-shaped distribution.Main formative period of Junggar secondary mantle plume is the Permian and Tarim`s is the Carboniferous.Junggar secondary mantle plume obliques Tianshan orogenic belt and Tarim secondary mantle plume is near upright.The former is more intense and brief,the latter calm and long.The eripheral weak zone and internal structural system in two basins provide the necessary channels for the deep mantle magma and post-collisional orogenic intrusion magma.Tianshan orogenic belt is formed in the late Carboniferous.Despite uplift and squeeze role of the double-secondary mantle plume is limited to Tianshan mountains,it is an influence to mineralize again.Main tectonic movements in relative north-south squeeze since the Permian,Altun, Kunlun Mountains uplift rapidly in Neogene.Based on the mantle branch theory inspiration,the perspective is proposed innovatively:metal geological prospecting field cooperates with petroleum,uranium field,sharing base geological datas,achievements, prospecting metallic minerals within Junggar ,Tarim Basin in the comprehensive geological way,to fill the "8" shape in the blank.The perspective can guide metal mineral prospecting directions generally and Enormous prospects can be forecasted to metal mineral prospecting resources. |
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