由加拿大地调局主持召开的第四届国际地学信息会议将于1990年7月24～29日在加拿大渥太华召开。会议的宗旨是促进从事收集、管理、传播地球科学信息的地质学家和其他人员之间交流思想、经验和资料。会议的主要五项议题是:1.讨论信息的重要性;2.利用数学和模拟系统进行信息处理;3.数据库的建立和管理;4.信息收集和储存:储存和保管;5.改进信息流通战略:地区性、全国性、国际性。 The Fourth International Conference on Geosciences, chaired by the Canadian Bureau of Seismology, will be held in Ottawa, Canada, from July 24 to 29, 1990. The purpose of the conference is to promote the exchange of ideas, experiences and information among geologists and others engaged in the collection, management and dissemination of Earth science information. The five main topics for the conference are: 1. The importance of discussing information; 2. The use of mathematical and simulation systems for information processing; 3. The establishment and management of databases; 4. Information gathering and storage: storage and storage; 5. Improvement of information Circulation strategy: regional, national, international.