摘要
物探是成矿带矿产资源评价的重要方法之一,但激发极化法测量限于技术和经济条件等原因在成矿带资源评价中未大面积开展。本文在初步分析磁法、重力法、激发极化法等在成矿带应用成果的基础上,结合中国多金属矿床矿石构造多以浸染状为主的基本特点,提出了成矿带物探存在的主要问题,并提出开展激发极化法普查的技术思路。通过总结土屋斑岩铜矿成矿带、百灵山花岗岩岩体北接触带铅锌多金属成矿带1∶5万激发极化法的试验、示范成果,认为该方法技术上可行、经济上合理,找矿成果明显,并提出在重要铜、多金属成矿带开展以1∶5万激发极化法为主要方法的综合物探普查的建议。
Geophysical exploration is one of the important methods of mineral resources evaluation in a metallogenic belt. Because of technical and economic limitation, the induced polarization (IP) method has not been widely applied in mineral resources evaluation in a metallogenic belt. On the basis of an analysis of the results obtained by magnetic, gravity and IP surveys in a metallogenic belt, combined with the basic characteristic that the ore of China′s polymetallic ore deposits mainly has a disseminated structure, the chief problems in geophysical exploration in a metallogenic belt are pointed and a technical concept of IP survey in a metallogenic belt is put forward. By analyzing 1∶50000 IP trial survey and demonstration results in the Tuwu porphyry copper metallogenic belt and Pb-Zn polymetallic metallogenic belt of the contact zone north of the Bailingshan granite body, the authors think that this method is technically feasible and economically reasonable and can yield pronounced results in search for mineral deposits. Therefore the proposal of carrying out 1∶50000 comprehensive geophysical surveys by mainly using the IP method.
出处
《地质通报》
CAS
CSCD
北大核心
2004年第7期707-713,共7页
Geological Bulletin of China
基金
中国地质调查局<新疆东天山铜矿带1:5万电法快速普查示范>项目(编号:200120120070)部分成果。
关键词
1:5万激发极化法测量
成矿带
铜多金属矿床
普查
天山
1:50000IP survey
metallogenic belt
copper polymetallic deposit
reconnaissance
Tianshan trial survey a
