第7届国际地球化学勘探讨论会将于1978年4月19—20日在美国科罗拉多州丹佛举行。这次会议的时间比在温哥华举行的加拿大采矿治金会议早一个星期。因此,北美以外的与会者可以一次参加这两个会议。勘探地球化学方面的论文请用英文,这对国际读者是有益的。会议期间丹佛地区的几个地球化学实验室将同时开放。此外,还安排几次一天 The 7th International Symposium on Geochemical Exploration will be held April 19-20, 1978 in Denver, Colorado, USA. The meeting took place a week earlier than the Canadian mining and metallurgical conference in Vancouver. Therefore, participants outside North America can attend both meetings at a time. Please use English for exploration geochemistry, which is good for international readers. Several geochemical laboratories in the Denver area will be open at the same time. In addition, several days are arranged