| 高明,李香资,权知心,谢国兴,丁军召,郜朋飞.河南省南召北沟地区土壤地球化学特征及找矿前景分析[J].矿产勘查,2025,16(6):1451-1462 |
| 河南省南召北沟地区土壤地球化学特征及找矿前景分析 |
| Analysis of soil geochemical characteristics and prospecting prospects in Nanzhao Beigou area, Henan Province |
| 投稿时间：2024-12-26 |
| DOI：10.20008/j.kckc.202506014 |
| 中文关键词: 南召北沟地区 地球化学特征 找矿前景 河南省 |
| 英文关键词: Beigou area in Nanzhao geological and geochemical characteristics prospecting prospects Henan Province |
| 基金项目:本文受河南省财政项目(豫自然资发[2019]22号)与河南省地质矿产勘查开发局(豫地矿科研[2021]Z-17号)联合资助。 |
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| 中文摘要: |
| 南召北沟位于华北板块南缘与秦岭造山带东段接壤部位，构造、岩浆岩十分发育，分布着丰富的金属和非金属矿产。本文为了解该区土壤中成矿元素富集情况及元素分带特征，圈定矿化异常区，在研究区内开展了 1∶1万土壤测量，根据测量结果，圈定了化探综合异常并进行了异常查证。异常查证工作新发现 18条金多金属矿(化)带，其中 P4矿(化)带规模最大，对其施工槽探进行地表揭露，施工钻探验证深部矿化情况，根据基本分析样结果圈定 4个铅锌钨工业矿体，若继续投入钻探工程控制，预测资源量可能达到中—大型。区内金多金属矿化赋存在次级断裂构造带内，成矿物源来自于深部岩浆热液，深大断裂为导矿构造，进一步勘查在南召北沟寻找热液脉型及斑岩型金多金属矿产会有大的突破。 |
| 英文摘要: |
| Nanzhao Beigou is located at the junction of the southern margin of the North China Plate and theeastern section of the Qinling Orogenic Belt. Its structure and magmatic rocks are highly developed, and it is rich inmetallic and non-metallic minerals. In order to understand the enrichment of ore-forming elements and the zonalcharacteristics of elements in the soil of this area, and to delineate the mineralization anomaly zone, a 1∶10000 soil measurement was carried out in the study area. Based on the measurement results, the geochemical exploration com.prehensive anomaly was delineated and anomaly verification was conducted. The anomaly verification work hasnewly discovered 18 gold polymetallic mineralization (mineralization) zones, among which the P4 ore (mineraliza.tion) zone is the largest in scale. Trench exploration was carried out on it for surface exposure, and drilling was con.ducted to verify the deep mineralization situation. Based on the results of the basic analysis samples, four lead-zinc-tungsten industrial ore bodies were delineated. If further drilling engineering control is implemented, it is predictedthat the resource volume may reach medium to large. Gold polymetallic mineralization in the area is located withinthe secondary fault structural zone. The mineral sources come from deep magmatic hydrothermal vents. Deep andlarge faults are ore-conducting structures. Further exploration in the Nanzhao Beigou area to search for hydrother.mal vein type and porphyry type gold polymetallic minerals will have significant breakthroughs. |
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