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引用本文:刘善宝1 陈毓川2 范世祥4 许建祥3 屈文俊5 应立娟1. 南岭成矿带中、东段的第二找矿空间——来自同位素年代学的证据[J]. 中国地质, 2010, 37(4): 1034-1049.
LIU Shan-bao1, CHEN Yu-chuan2, FAN Shi-xiang4, XU Jian-xiang3, QU Wen-jun5, YING Li-juan1. The second ore-prospecting space in the eastern and central parts of the Nanling metallogenic belt: evidence from isotopic chronology[J]. Geology in China, 2010, 37(4): 1034-1049(in Chinese with English abstract).
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南岭成矿带中、东段的第二找矿空间——来自同位素年代学的证据
刘善宝1 陈毓川2 范世祥4 许建祥3 屈文俊5 应立娟11,2,3,4,5
1.中国地质科学院矿产资源研究所,北京 100037;2.中国地质科学院,北京 100037;3.江西省国土资源厅,江西 南昌330001;4.江西省赣南地质调查大队,江西 赣州 341000;5.国家地质测试中心,北京 100037
摘要:
提要:辉钼矿的Re-Os同位素年代学研究表明,南岭东段赣南地区的庵家滩钨矿床的成矿年龄为156 Ma,园岭寨钼矿床的成矿年龄为160 Ma。已有同位素年代学数据的统计显示,南岭成矿带的中、东段中生代的成矿作用可划分为3期7个阶段:即印支期的~225 Ma左右和~195 Ma左右,燕山早期的170~160 Ma、160~150 Ma和150~145 Ma,燕山晚期的~135 Ma和~100 Ma。在3期成矿作用中,燕山早期的成矿作用最为强烈,也是南岭成矿带中、东段的钨锡矿床主要成矿期,矿床类型丰富多样,既有独立的钨锡多金属矿床,也有独立的锡矿床;既有铜、铅、锌多金属矿床,也有独立的钼矿床、金矿床等。同位素年代学及其新的找矿进展表明,从横向上,该区域可能存在的未被发现或重视的矿产种类;在纵向上,讨论了已知矿床深部的成矿潜力,为开展南岭中、东段地区的第二空间的地质找矿提供了理论证据。
关键词:  南岭  同位素  年代学  第二找矿空间
DOI:
分类号:
基金项目:中国地质科学院矿产资源研究所基本业务费专项资金(K0906)及中国地质调查局地质大调查项目(1212010633903)资助。
The second ore-prospecting space in the eastern and central parts of the Nanling metallogenic belt: evidence from isotopic chronology
LIU Shan-bao1, CHEN Yu-chuan2, FAN Shi-xiang4, XU Jian-xiang3, QU Wen-jun5, YING Li-juan11,2,3,4,5
1. Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China;2. Chinese Academy of Geological Sciences, Beijing 100037, China;3. Land Office of Jiangxi Province, Nanchang 330000, Jiangxi, China;4. South Jiangxi Geological Survey Party, Ganzhou 341000, Jiangxi, China;5. National Research Center of Geoanalysis, Beijing 100037, China
Abstract:
Abstract:A study of Re-Os isotopic chronology of molybdenite suggests that the metallogenic age of the Anqiantan tungsten ore deposit in south Jiangxi area within eastern Nanling region is about 156 Ma and that of the Yuanlingzhai molybdenum ore deposit is about 160Ma. Statistics indicate that there occurred 3 epochs comprising 6 stages of mineralization during Mesozoic in the eastern and central parts of the Nanling metallogenic belt. These stages are about 225 Ma and 195 Ma of Indo-Chinese period, 170-160 Ma, 160-150 Ma and 150-145Ma of Early Yanshanian period, and about 135 Ma and 100 Ma of Late Yanshanian period. The mineralization during Early Yanshanian period is the strongest one, so that Early Yanshanian is the major metallogenic period for tungsten and tin ore deposits in the eastern and central parts of the Nanling metallogenic belt. There exist independent W-Sn polymetallic ore deposits, Sn ore deposits, Cu-Pb-Zn polymetallic ore deposits and Mo ore deposits. Combined with an analysis of metallogenic chronology, the authors hold that there might exist undiscovered or neglected mineral resources in the horizontal direction as well as metallogenic potential at the depth of the known ore deposits in the vertical direction. This study has provided theoretic basis for geological prospecting in the second space of the eastern and central parts of the Nanling metallogenic belt.
Key words:  Nanling  isotope  chronology  second ore-prospecting space