投稿时间：2013-06-08
修订日期：2013-06-23
中文摘要:成矿系列是矿床地质学科中研究区域成矿规律的一种学术思想,主张用系统论、活动论的观点研究在地质历史发展的各阶段、各特定地质构造环境中,成矿作用的过程及形成的矿床组合自然体。文章基于对内蒙古大地构造演化的新认识和新理解,结合周边省、自治区以及境外地质和矿产研究新进展,尤其是大批成矿年龄精测数据和对成岩成矿物质来源的新认识,将内蒙古矿产资源划分为11个主要矿床成矿系列:① 太古代鞍山式沉积变质型铁矿成矿系列(包括中太古代和新太古代2个系列);② 中元古代海底喷流型铅锌铜硫矿成矿系列;③ 中元古代白云鄂博稀土元素-铁-铌矿床成矿系列;④ 奥陶纪—志留纪岛弧环境斑岩铜(金,钼)矿成矿系列;⑤ 泥盆纪与蛇绿岩有关的铬铁矿矿床成矿系列;⑥ 晚二叠纪—三叠纪与花岗岩有关的钼金多金属成矿系列;⑦ 三叠纪—中侏罗世斑岩铜矿床成矿系列;⑧ 得尔布干地区晚侏罗世—早白垩世与花岗岩有关的浅成低温热液型铅锌多金属矿床成矿系列;⑨ 大兴安岭及邻区晚侏罗世—早白垩世与花岗岩有关的铅锌锡钼金多金属矿床成矿系列;⑩ 新生代与湖相沉积-蒸发作用有关的盐类矿床成矿系列。在成矿系列划分的基础上,编制了各成矿系列主要矿床分布图,并简要论述了各个成矿系列的成矿地质背景、成矿特征、矿床组合及时空分布规律等。本次成矿系列的划分,强调以重大构造事件作为背景,突出以重大构造事件与大规模成矿的耦合关系作为出发点,力求从更大尺度上认识当时的地质背景,如将多宝山与白乃庙2个同时代矿床作为一个矿床成矿系列(尽管目前尚不清楚它们属于同一个断续的岛弧链,还是被后来构造运动所分裂)。值得指出的是,内蒙古幅员辽阔,不少矿床的成矿系列具有明显空间递变性,如与古亚洲洋闭合和碰撞有关的成矿事件横跨晚石炭世、二叠纪和三叠纪,与蒙古-鄂霍茨克洋俯冲有关的成矿事件横跨三叠纪—中侏罗世。
Abstract:In the discipline of ore deposits, minerogenetic series is a kind of academic thought of studying regional metallogeny. It advocates using system theory and activity theory to study ore-forming process and ore deposit association that have been developed in various stages of geological history and in specific tectonic environment. In this study, based on the new understanding of tectonic evolution of Inner Mongolia, the new progresses in geosciences of its adjacent areas, especially a large number of precise mineralization ages data, and the new understanding of the sources of rock-forming and ore-forming materials, the authors divided the ore deposits in Inner Mongolia into 11 metallogenic series: ① the Archaean Anshan type metamorphic sedimentary iron deposit metallogenic series (consisting of the Middle Archaean and the Late Archaean series); ② the Middle Proterozoic submarine exhalative type lead-zinc-copper-sulfur deposit metallogenic series; ③ the Mesoproterozoic Bayan Obo REE-Fe-Nb deposit metallogenic series; ④ the Ordovician-Silurian porphyry copper deposit metallogenic series; ⑤ the Devonian ophiolite related chromite deposit metallogenic series; ⑥ the Late Permian-Triassic granite related molybdenum-gold polymetallic deposit metallogenic series; ⑦ the Triassic-Middle Jurassic porphyry copper deposit metallogenic series; ⑧ the late Jurassic-Early Cretaceous granite related epithermal type lead-zinc polymetallic deposit metallogenic series in De'erbugan area; ⑨ The late Jurassic-Early Cretaceous granite related lead-zinc-tin-molybdenum-gold polymetallic deposit metallogenic series in the Da Hinggan Mountains and adjacent areas;⑩ the Cenozoic lacustrine sedimentary-evaporation related salt deposit metallogenic series. Furthermore, On the basis of such division, the ore deposit metallogenic series distribution map was drawn up, with a brief discussion on their ore-forming geological background, mineralization characteristics, ore deposits association and spatial-temporal distribution patterns. The metallogenic series division in this study emphasizes the importance of tectonic events and highlights the coupling between the major tectonic events and the large scale mi-neralization, with the purpose of recognizing the geological background of the mineralization episode on a larger scale. For example, the authors set the two coeval deposits of Duobaoshan and Bainaimiao as a metallogenic series, though it is not clear whether they belonged to the same intermittent arc chain or whether they were split by later tectonic movement. It is worth noting that a lot of minerogenetic series in Inner Mongolia show significant diachronism. For example, the metallogenic events related to the closure of Paleo-Pacifc Ocean lasted from Late Carboniferous through Permian to Triassic, and those related to the subduction of Mongol-Okhotsk Ocean lasted from Triassic to Middle Jurassic.
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中图分类号：P612
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基金项目:本文得到内蒙古重要矿产资源潜力评价及区域成矿规律研究项目(编号:2006-02-YS01);中国地质调查项目(编号:12120113093600和编号:1212011085260)的联合资助
引用文本：
毛景文,周振华,武广,江思宏,刘成林,李厚民,欧阳荷根,刘军.2013.内蒙古及邻区矿床成矿规律与成矿系列[J].矿床地质,32(4):715~729MAO JingWen,ZHOU ZhenHua,WU Guang,JIANG SiHong,LIU ChengLin,LI HouMin,OUYANG HeGen,LIU Jun.2013.Metallogenic regularity and minerogenetic series of ore deposits in Inner Mongolia and adjacent areas[J].Mineral Deposits32(4):715~729
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