加拿大地球化学家伊安·汤普森在该国第49届勘探者与开发者年会上,评述了八十年代加拿大在地球化学找矿领域所面临的挑战. 汤普森指出,在五十至八十年代地球化学发展的同期,加拿大大部分地区的找矿勘探工作进入了第三和第四阶段. 第一阶段可谓发现露头矿阶段,肖得伯里、科勃特和提敏斯等矿均为这一时期发现的. 第二阶段是发现部分出露的矿体时期,这一阶段不长. 第三阶段是发现有覆盖层覆盖的矿化.自第一阶段以来,这类矿体一直有所发现;随着物探技术的进 Ian Thompson, a Canadian geochemist, commented on Canada’s challenges in the field of geochemical prospecting in the 1980s at the 49th Prospectors and Developers’ Annual Meeting in the country.50 Thompson pointed out that in the 1950s and 1980s In the same period of geochemical development, the prospecting work in most parts of Canada entered the third and fourth stages, the first stage was the discovery of the outcropping stage, and the Xiaodebury, Cobb and Timmins mines are all this A period of discovery.The second stage is the discovery of the part of the exposed ore body period, this stage is not long.The third stage is the discovery of cover mineralization.From the first stage, this type of ore body has been Discovery; With the progress of geophysical technology