| 豫西熊耳山地区重磁场特征与深部成矿预测 |
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| 引用本文： | 王俊鹤,李璨,王安,王耀升,秦学业,陈树民.豫西熊耳山地区重磁场特征与深部成矿预测[J].地质通报,2020(5):735-745. |
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| 作者姓名： | 王俊鹤 李璨 王安 王耀升 秦学业 陈树民 |
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| 作者单位： | 河南省有色金属矿产探测工程技术研究中心;河南省有色金属地质矿产局第五地质大队;河南省有色金属地质矿产局第一地质大队 |
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| 基金项目： | 河南省国土资源科技项目《斑岩型钼矿床综合地球物理找矿模型研究———以东秦岭地区钼矿找矿预测研究为例》(编号:2011-072)。 |
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| 摘 要： | 熊耳山地区是河南省重要的金银铅锌钼多金属矿产地,现已查明各类矿床(点)121个。通过研究发现,该区多金属矿产的形成与中生代中酸性岩浆的侵入活动关系密切,现有矿床分布比较集中的区域,深部都有隐伏岩体赋存。通过对熊耳山地区重磁场特征的分析,建立了熊耳山地区隐伏岩体侵入模型。熊耳山西段主要是寨凹隐伏岩体,赋存面积约310 km2,分3个阶梯深度:0~0.8 km、0.8~2 km、2~4 km;熊耳山中段铁炉坪-花山隐伏岩体位于寨凹隐伏岩体和花山岩体之间,赋存面积约184 km2,深度3~5 km;熊耳山东段旧县-花山隐伏岩体,赋存面积约338 km2,北部深度0~1.5km,向南逐步加深至1.5~3 km。根据区域矿产分布分带特征,结合隐伏岩体侵入模型,预测了深部成矿模型。研究表明,在熊耳山西段有寻找大型斑岩型钼钨铜矿和大型金矿的潜力;中段隐伏岩体深度较大,以寻找中低温矿产为主;东段地质勘查程度相对较高,深部仍有寻找斑岩型钼金铜矿的潜力。
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| 关 键 词： | 金银铅锌钼 成矿规律 重磁场特征 隐伏岩体侵入模型 成矿预测 豫西熊耳山 |
Characteristics of gravity and magnetic fields and deep metallogenic prediction in Xiongershan area,western Henan Province |
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| WANG Junhe,LI Can,WANG An,WANG Yaosheng,QIN Xueye,CHEN Shumin.Characteristics of gravity and magnetic fields and deep metallogenic prediction in Xiongershan area,western Henan Province[J].Geologcal Bulletin OF China,2020(5):735-745. |
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| Authors: | WANG Junhe LI Can WANG An WANG Yaosheng QIN Xueye CHEN Shumin |
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| Institution: | (Nonferrous Metal Mineral Exploration Engineering Technology Research Center of Henan Province,Zhengzhou 450016,Henan,China;No.5 Geological Party of Henan Bureau of Nonferrous Metals Geology and Mineral Resources,Zhengzhou 450016,Henan,China;No.1 Geological Party of Henan Bureau of Nonferrous Metals Geology and Mineral Resources,Zhengzhou 450016,Henan,China) |
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| Abstract: | Xionger Mountain area is an important gold,silver,lead,zinc and molybdenum polymetallic mineral deposit area in Henan Province.121 deposits have been identified.It is found that the formation of polymetallic minerals in this area is closely related to the intrusion of Mesozoic intermediate-acid magma.There are concealed rock bodies in the deep part of the area where the existing ore deposits are concentrated.Based on the analysis of the characteristics of gravity and magnetic fields in Xionger mountain area,the intrusion model of concealed rock mass in Xionger Mountain area is established.There are mainly Zhaiwa concealed rock mass in Xionger Mountain Western section,with an area of about 310 km2 and three stepped depths:0~0.8 km,0.8~2 km,2~4 km;Tieluping-Huashan concealed rock mass in the middle part of Xionger Mountain is located between Zhaiwa concealed rock mass and Huashan rock mass,with an area of 184 km2 and a depth of 3~5 km;The Jiuxian-Huashan concealed rock mass in the east part of Xionger Mountain has an area of 338 km2,a depth of 0~1.5 km in the north,and gradually deepening to 1.5~3 km in the south.According to the distribution and zoning characteristics of regional minerals and the intrusion model of concealed rock mass,the deep metallogenic model is predicted.Research shows:there is potential to search for large porphyry molybdenum tungsten copper deposits and large gold deposits in the western Xionger Mountain;The concealed rock mass in the middle section is deep and Mainly searches for low-and medium-temperature minerals;The geological exploration in the eastern section is relatively high,and porphyry-type molybdenum-gold-copper deposits still have potential in the deep part of the deposit. |
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| Keywords: | Au Ag Pb Zn Mo metallogenic regularity characteristics of gravity and magnetic fields intrusion model of concealed rock mass metallogenic prediction Xionger Mountain western Henan |
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