| 李照义,李中明,张宇,李肖龙,彭翼,梁涛,沈建海,罗雪.河南省金矿成矿规律及成矿系列[J].矿产勘查,2026,17(1):135-150 |
| 河南省金矿成矿规律及成矿系列 |
| The metallogenic regularity and metallogenic series of gold deposits in Henan Province |
| 投稿时间:2024-12-22 |
| DOI:10.20008/j.kckc.202601011 |
| 中文关键词: 金矿 矿床类型 成矿规律 成矿时代 成矿系列 河南省 |
| 英文关键词: gold deposit type of deposit metallogenic regularity metallogenic age metallogenic series Henan Province |
| 基金项目:本文受中国矿产地质志项目(DD20221695、DD20190379、DD20160346)和河南省地质研究院2024年度地质科技攻关项目(2024-903-XM05、2024-903-XM08)联合资助。 |
| 作者 | 单位 | | 李照义 | 河南省地质研究院,河南郑州 450016 河南省金属矿产成矿地质过程与资源利用省级重点实验室,河南郑州 450016 | | 李中明 | 河南省地质研究院,河南郑州 450016 河南省金属矿产成矿地质过程与资源利用省级重点实验室,河南郑州 450016 河南省有色金属深部找矿工程技术研究中心,河南郑州 450016 | | 张宇 | 河南省地质研究院,河南郑州 450016 河南省金属矿产成矿地质过程与资源利用省级重点实验室,河南郑州 450016 河南省有色金属深部找矿工程技术研究中心,河南郑州 450016 | | 李肖龙 | 河南省地质研究院,河南郑州 450016 河南省金属矿产成矿地质过程与资源利用省级重点实验室,河南郑州 450016 | | 彭翼 | 河南省地质研究院,河南郑州 450016 | | 梁涛 | 河南省地质研究院,河南郑州 450016 | | 沈建海 | 河南省地质研究院,河南郑州 450016 | | 罗雪 | 河南省地质研究院,河南郑州 450016 |
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| 中文摘要: |
| 河南省地处华北陆块和东秦岭造山带的特殊地理位置,是中国重要的多金属矿产区,其中金矿是省内的优势矿种之一。本文通过系统总结河南省金矿资源特征、金矿类型、区域成矿规律(包括地质条件和成矿时代)以及金矿的空间分布与成矿系列,为下一步找矿方向提供了重要参考。结合河南省境内的盆山地貌,金矿矿集区划分为小秦岭地区、崤山地区、熊耳山—外方山地区、方城北部地区、卢氏南部地区、伏牛山南坡、西峡南部地区、桐柏山北部地区、大别山北麓 9个区块。金矿类型主要划分为岩浆热液型矿床(包括石英脉型、蚀变岩型、斑岩型和爆破角砾岩型)和沉积作用相关的砂金矿床。其中岩浆热液型是河南省最主要的金矿类型,其成矿流体为中—高温、富 CO2、低盐度的 H2O-CO2-NaCl体系,成矿物质来源于岩浆。对河南省金矿区域成矿规律的总结表明,金矿对地层缺乏明显的选择性,而是受到多期深大断裂的影响。河南省金矿的主要成矿时代为晚泥盆世、三叠纪和早白垩世,其中早白垩世是最主要的金矿形成时代,与板内岩浆活动密切相关。按照全国统一划分方案,河南省成矿带划分出 5个与金矿相关的Ⅳ级成矿区带和成矿系列,显示出良好的成矿条件和找矿前景。 |
| 英文摘要: |
| Henan Province, located at the intersection of the North China Craton and the East Qinling Oro-genic Belt, is a significant polymetallic mineral area in China, with gold being one of its predominant mineral re-sources. This paper systematically summarizes the characteristics of gold resources in Henan Province, types of golddeposits, regional metallogenic regularity (including geological conditions and metallogenic epochs), as well as thespatial distribution and metallogenic series of gold deposits, providing crucial references for future prospecting. Inconsideration of the geomorphic feature within Henan Province, the principal gold ore-concentrated areas are subdi-vided into nine areas: Xiaoqinling area, Xiaoshan area, Xiong’ershan-Waifangshan area, northern Fangcheng area,southern Lushi area, southern slope of Funiushan, southern Xixia area, northern Tongbaishan area, and northernfoot of Dabieshan area. Gold deposit types are primarily divided into magmatic-hydrothermal deposits (includingquartz vein type, altered rock type, porphyry type, and explosion breccia type) and sedimentary-related placer golddeposits. Within this classification, the magmatic-hydrothermal type is the most prominent gold deposit type inHenan Province, with ore-forming fluids characterized by medium-high temperatures, CO2-rich, and low-salinity H2O-CO2-NaCl systems, and ore-forming materials derived from magma. A review of the regional metallogenicregularity of gold deposits in Henan Province reveals that gold deposits demonstrate a lack of significant selectivityto strata, instead being influenced by multiple phases of deep-seated faulting. The primary metallogenic epochs forgold deposits in Henan Province are the Late Devonian, Triassic, and Early Cretaceous, with the Early Cretaceousepoch being the primary epoch of gold formation, closely related to intraplate magmatic activity. In accordance withthe national unified classification scheme, Henan Province′s metallogenic belts are divided into five fourth-levelmetallogenic zones and metallogenic series related to gold, thereby demonstrating favorable metallogenic conditionsand prospecting potential. |
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