1981年,美国地球化学代表团来我国访问。1983年10月19—11月11日,中国科学院地球化学代表团一行7人在中国科学院地学部主任、地球化学研究所所长涂光炽教授团长的率领下,对美国进行了为期三周的回访。代表团从西海岸的旧金山到东海岸的纽约,途经九个州,参观访问了所到各州的主要大学及研究所。 In 1981, the American geochemical delegation came to visit China. From October 19 to November 11, 1983, a delegation of 7 geochemists from the Chinese Academy of Sciences led a 7-week visit to the United States under the leadership of Professor Tu Guangchi, director of the Institute of Geosciences, Chinese Academy of Sciences, and director of the Institute of Geochemistry. . From San Francisco on the west coast to New York on the east coast, the delegation traveled to nine major states and visited major universities and research institutes in the states it visited.