这是一篇评论性文章。内容是自从1903年以来在海上所应用或试验的各种重力测量仪器的类型;影响海上测量各种外来加速度;以及应用某种仪器在几次重力调查中所获得的结果。空间重力异常图包括:(1)墨西哥湾,(2)从加利福尼亚北部海岸到阿拉斯加南端海岸以西一带,(3)夏威夷北部。对于所选区域,包括有与重力异常和地震折射资料相应的推断地壳及地壳以下的断面图。 This is a commentary. The types of gravimetric instruments that have been applied or tested at sea since 1903; the effects of various foreign accelerations on the sea; and the results obtained from using several instruments in several gravity surveys. The spatial gravity anomaly maps include: (1) the Gulf of Mexico, (2) from the northern coast of California to the west of the southern coast of Alaska, and (3) northern Hawaii. For selected areas, cross-sectional views below the extrapolated crust and crust corresponding to gravity anomalies and seismic refraction data are included.