首页|东秦岭黄龙铺矿田碳酸岩脉型铼钼矿床成矿特征及找矿预测

东秦岭黄龙铺矿田碳酸岩脉型铼钼矿床成矿特征及找矿预测

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作为世界上唯一一处碳酸岩型钼矿床集中区,黄龙铺钼矿田位于华北地块南缘东秦岭成矿带西段,空间上受卢氏-马超营断裂控制.笔者在前期研究成果的基础上,通过对黄龙铺矿田的区域地质背景、成矿特征、典型矿床等进行系统梳理与综合分析表明,碳酸岩脉型钼成矿主要与印支期岩浆活动关系密切,构造为其提供了有利的赋矿空间,围岩提供了少量成矿物质,总体形成了NW向垣头-碾子坪铼钼多金属矿(化)带与NE向西坪-秦岭沟铜钼矿(化)带,涉及两个Ⅲ级成矿区带和两个Ⅳ级成矿区带,Re、Mo含量总体表现为正相关.成矿流体主要为中高温硅酸盐-碳酸盐-硫酸盐体系的岩浆水,成矿物质主要来源于幔源火成岩浆,属印支晚期成矿,大致经历了 3个主要成矿期.本研究从多角度进行找矿预测认为,在矿田东北端向河南延伸方向及西南端的卢氏-马超营断裂两侧,有好的钼找矿前景,在华阳川-太子坪矿化带及矿田西北部的岩体下部,可能存在大中型钼多金属矿床.
Metallogenic Characteristics and Prospecting Prediction of Carbonatite Vein-Type Re-Mo Deposits in Huanglongpu Ore Field,East Qinling
The Huanglongpu molybdenum ore field,situated in the western region of the East Qinling metallo-genic belt on the southern margin of the North China block,represents the only concentration area of carbonatite-type molybdenum deposits worldwide,and spatially controlled by the Lushi-Machaoying fault.On the basis of previous research results,This study presents a systematic sorting and comprehensive analysis of the regional geological setting,metallogenic characteristics and typical deposits of the Huanglongpu ore field.The formation of carbonate vein-type molybdenum deposits is closely related to the magmatic activities during the Indosinian period,with the favorable structural framework providing ore-bearing spaces and the surrounding rocks con-tributing trace ore-forming materials.The study delineates two primary ore-forming belts,namely the NW-ori-ented Yuantou-Nianziping rhenium-molybdenum polymetallic ore(mineralization)belt and the NE-oriented Xiping-Qinlinggou molybdenum-copper ore(mineralization)belt,comprising two third-level ore-forming zones and two fourth-level ore-forming zones.The Re and Mo contents generally exhibit a positive correlation.The ore-forming fluid is mainly characterized as magmatic water from the medium-high temperature silicate-carbon-ate-sulfate system,with ore-forming materials predominantly derived from mantle-derived igneous magma dur-ing the late Indosinian period,and it has roughly gone through three main mineralization stages.This study con-ducts prospecting predictions from multiple perspectives,there are promising prospects for molybdenum prospecting in the northeastern end of the ore field extending toward Henan and on both sides of the Lushi-MaChaoying fault at the southwest end.Additionally,the Huayangchuan-Taiziping mineralization belt and the lower part of the rock mass in the northwest of the ore field hold potential for large and medium-sized molybde-num polymetallic deposits.

Re-Mo depositmetallogenic characteristicsprospecting predictioncarbonatite veinHuang-longpu ore fieldEast Qinling

段湘益、李维成、王海元、黄凡、高海峰、杨涛、杨帅、宋公社、姚富升

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自然资源陕西省卫星应用技术中心,陕西 西安 710082

陕西省地质调查院,陕西 西安 710000

陕西省矿产地质调查中心,陕西 西安 710068

西安华地矿业管理有限公司,陕西 西安 710000

中国地质科学院矿产资源研究所,北京 100037

自然资源部成矿作用与资源评价重点实验室,北京 100037

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铼钼矿床 成矿特征 找矿预测 碳酸岩脉 黄龙铺矿田 东秦岭

中国地质调查局项目中国地质调查局项目中国地质调查局项目&&陕西省公益性地质调查项目&&&&陕西省地质灾害综合防治体系建设项目陕西省秦岭生态环境保护专项项目

DD20160346DD20190379DD20221695DD20190379-212017030220180301202412

2024

10.12401/j.nwg.2024045

西北地质
中国地质学会 西安地质矿产研究所

西北地质

CSTPCD北大核心
影响因子：0.759
ISSN：1009-6248
年,卷(期)：2024.57(5)
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