沉积与特提斯地质2025，Vol.45Issue(4)：788-805,18.DOI:10.19826/j.cnki.1009-3850.2025.11013
黔西南"界面型"深部隐伏金矿床的勘查模式研究:以纳板穹窿地区为例
Exploration model of interface-type deep concealed gold deposits in Southwest Guizhou:A case study of Naban dome area
摘要
Abstract
The shallow gold resources around the Naban dome in southwestern Guizhou are facing depletion,and the interface-type deep concealed gold deposits have become a key target for replacement resources.This paper adopts a multidisciplinary exploration method of geology,geophysics,geochemistry,and remote sensing to systematically summarize the characteristics of the Naban dome and comprehensively compare and summarize them with the characteristics of the metallogenic system.Research has shown that geochemical anomalies of Au-As-Sb-Hg elements are consistent with the iron-stained hydroxyl remote sensing anomalies and with known surface gold occurrences,collectively serving as strong indicators of mineralization.Regional gravity and broadband magnetotelluric profiles show the presence of"intrusive"low-density,medium–high resistivity,and high-magnetic anomalies in the subsurface,inferring the existence of concealed rock masses related to the source of ore-forming materials.Moreover,the Si/Ca interface(P/T interface)between Permian carbonate rocks and Triassic clastic strata at the periphery of the Naban dome exhibits an obvious resistivity gradient zone,acting as the main metallogenic interface for gold enrichment.Based on these findings,this paper summarizes the regional metallogenic model of the area and constructs a comprehensive exploration framework based on the combination of geochemical exploration,remote sensing shallow surface anomalies to reveal regional metallogenic geological processes,regional gravity,and electrical profiling to detect deep metallogenic geological structures.关键词
界面型金矿/深部找矿/勘查模式/板其金矿/黔西南Key words
interface-type gold deposit/deep prospecting/exploration mode/Banqi gold deposit/Southwest Guizhou分类
天文与地球科学引用本文复制引用
张伟,廖国忠,黄勇,陆建宝,高慧,夏时斌,王平,赵军博,郝梓源..黔西南"界面型"深部隐伏金矿床的勘查模式研究:以纳板穹窿地区为例[J].沉积与特提斯地质,2025,45(4):788-805,18.基金项目
攀西地区铜铁多金属典型矿床勘查技术研究与增储示范(2024ZRBSHZ143) （2024ZRBSHZ143）
中国地质调查局地质调查项目(DD20160020-6) （DD20160020-6）
深地国家科技重大专项(2025ZD100950204,2024ZD100020202) （2025ZD100950204,2024ZD100020202）
