| 摘要 |
A capsule for obtaining samples of sea bottom material contains a molten sample gathering material. A ballast member at the lower end of the capsule causes the capsule to sink freely when dropped into the sea. An explosive device, preferably located in the ballast member, is detonated when the capsule reaches the sea bottom and ruptures the capsule. A piston within the capsule above the sample gathering material is driven downwardly by gas pressure to force the sample gathering material from the capsule into contact with the sea bottom. The sample gathering material has a density lower than the density of sea water and a freezing point higher than the temperature of the sea water whereby the sample gathering material freezes, occludes sea bottom material, and floats to the surface of the water.
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