矿床地质2013，Vol.32Issue(4)：715-729,15.
内蒙古及邻区矿床成矿规律与成矿系列
Metallogenic regularity and minerogenetic series of ore deposits in Inner Mongolia and adjacent areas
摘要
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:①the 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 epitherrnal 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 mineralization,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.关键词
地质学/矿床成矿系列/成矿规律/成矿历史演化/内蒙古Key words
geology, minerogenetic series, metallogenic regularity, metallogenic evolution, Inner Mongolia分类
天文与地球科学引用本文复制引用
毛景文,周振华,武广,江思宏,刘成林,李厚民,欧阳荷根,刘军..内蒙古及邻区矿床成矿规律与成矿系列[J].矿床地质,2013,32(4):715-729,15.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)和中国地质调查项目(编号:12120113093600和编号:1212011085260)的联合资助 （编号:2006-02-YS01）
