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地质矿产部及联合国亚太经社会(ESCAP)联合发起、资助,由中国地质科学院/南京地质矿产研究所和亚太经社会/区域矿产资源发展计划组织共同召开的《环太平洋火山作用及成矿作用国际讨论会》,正按计划进行各项筹备工作。 会议所确定的主题包括两部份: 第二部份:中—新生代火山作用、构造背景、火山构造和火山岩岩石学 1、区域火山作用,与不同构造背景有关的岩石系列和岩石组合; 2、火山构造—破火山口,火山—构造洼地等的演化,中生代古火山构造的重建; 3、火山—侵入杂岩的地球化学和岩浆演化; 4、熔结凝灰岩及其它类似的岩石,其成因模式和相模式; 5、次火山岩,爆发角砾岩和火山构造与金属成矿作用的关系。 第二部份:与中—新生代火山作用有关的金属矿床(Fe、Cu、Pb、Zn、Au、Ag、U等)勘查方法。这部分是本次讨论会的重点,有如下专题: 1、构造—岩浆带的成矿规律及成矿系列; 2、与一定火山构造和火山—侵入杂岩有关的成矿作用;
Ministry of Geology and Mines and ESCAP co-sponsored and sponsored by the Chinese Academy of Geological Sciences / Nanjing Institute of Geology and Mineral Resources and the Asia Pacific Economic Commission / Regional Mineral Resources Development Plan jointly organized by the “Pacific Rim volcano and mineralization International Seminar ”, the preparatory work is being carried out as planned. The theme identified in the conference consists of two parts: Part II: Meso-Cenozoic volcanism, tectonic setting, volcanic tectonics and volcanic petrology 1, regional volcanism, rock series and rock assemblages related to different tectonic settings; 2 , Volcanic structures - the evolution of caldera, volcano-tectonic depressions and the reconstruction of Mesozoic volcanoes; 3) the geochemistry and magmatic evolution of volcanic-intrusive complexes; 4) the formation of tuffs and other similar rocks Modes and facies patterns; 5. Relationship between secondary volcanic rocks, breccia and volcanic tectonics and metallogenesis. Part 2: Exploration Methods for Metallic Deposits (Fe, Cu, Pb, Zn, Au, Ag, U, etc.) Related to Meso-Cenozoic Volcanisms. This part is the focus of this symposium and has the following special topics: 1. Structure-mineralization regulation of magmatic belt and metallogenic series; 2. Metallogenesis related to certain volcanic structures and volcano-intrusive complexes;