地质学报2011，Vol.85Issue(9)：1493-1506,14.DOI:11-1951/P.20110907.1101.002
冀东-辽西主要金矿矿集区地质特征的差异性与成矿作用的统一性探析
Geological Differences and Mineralization Unity of the Key Gold Ore Concentrated Regions in Eastern Hebei and Western Liaoning Provinces
摘要
Abstract
Based on the basic geological setting and geochemical data of gold deposits in the eastern section of the Yanliao metallgenic belt, in combination with regional tectonic evolution, and metallogenic time and mineral sptial distribution, the study indicates that ore-forming materials of the gold deposits in two regions have the same deep origin. Due to the different deposit types and spatial distribution differences, both of which resulted from various tectonic backgrounds, our study suggests that the Yan-Liao rifting trough was a leading factor for spatial distribution of the gold deposits in eastern Hebei and western Liaoning Provinces. The conclusive recognition has been made on its metallogenic evolution, which includes five phases: ① continent-contient collisional collage period at 4. 5~1. 85Ga;② intracontinental rifting sedimentary period at 1. 85~0. 6Ga; ③lifting period of intraplate orogenic extrusion at 200 ~ 145Ma; ④ the transformation period of tectonic regime at 145 ~ l00Ma, and ⑤ post-mineralization modification period ranging from 100 Ma up to now.关键词
冀东-辽西/金矿床/燕辽裂陷槽/矿集区/成矿作用Key words
Jidong-Liaoxi/gold deposits/Yanliao aulacogen/ore concentrated area/metallogenesis引用本文复制引用
贾三石,王恩德,付建飞,宋建潮,席晓凤..冀东-辽西主要金矿矿集区地质特征的差异性与成矿作用的统一性探析[J].地质学报,2011,85(9):1493-1506,14.基金项目
本文为中央高校基本科研业务费专项资金(编号N090601002)和中央高校基本科研业务费专项资金(编号N100401006)资助的成果. （编号N090601002）
