西北地质2024，Vol.57Issue(6)：318-325,8.DOI:10.12401/j.nwg.2024024
岩性分区异常下限衬值法圈定化探异常的优劣:以江苏金山地区为例
Advantages and Disadvantages in Delineating Geochemical Anomalies by Lithologic Zoning Anoma-ly Based on Lower Limit Contrast Method:A Case Study in Jinshan,Jiangsu Province
摘要
Abstract
Based on the data of geochemical soil surveys at the scale of 1∶10 000 in Jinshan,geochemical anomalies were delineated by lower limit on lithological zone in the study.Compared to traditional methods,it can effectively avoid the control of lithology on the anomaly and eliminate the influence of geological back-ground.Moreover,geochemical anomalies,delineated by lower limit,can provide more effective information in prospecting.Through field exploration and anomaly verification,as well as trenching and drilling verification of key anomalies with prospecting significance,industrial valuable tungsten ore bodies and lead-zinc ore veins were discovered.It suggest that lithology zoning anomaly lower limit contrast method is viable in areas with complex lithology,and therefore can be widely used.关键词
化探异常圈定/异常下限衬值法/岩性分区/MAPGIS异常图绘制/江苏金山Key words
delineating geochemical anomaly/anomaly lower limit contrast value/lithological zone/MAPGIS anomaly mapping/Jinshan in Jiangsu Province分类
天文与地球科学引用本文复制引用
杨用彪,曹积飞,王丽娟,黄顺生..岩性分区异常下限衬值法圈定化探异常的优劣:以江苏金山地区为例[J].西北地质,2024,57(6):318-325,8.基金项目
中国地质调查局项目(1212011120855、DD20190379-11),江苏省自然资源发展专项资金项目(苏财资环[2021]46号)和陕西省重点研发计划项目(2022KW-19)联合资助. （1212011120855、DD20190379-11）
