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Observation of High 3He/4He Ratio in Ocean Sediments — Evidence for Extraterrestrial Material Contamination
Published online by Cambridge University Press: 12 April 2016
Abstract
Occurrence of anomalously high 3He/4He ratio (> 5 × 10−5) is rather common in the Pacific deep sea sediment. The 3He/4He ratio correlates well with the 3He content, whereas the 3He content shows approximate inverse relation with the sedimentation rate. Input of stratospheric dust of about 1 ppm or less which corresponds to about 2000 ton/y fallout rate can explain the above observation.
- Type
- III. Interplanetary Dust: Laboratory Studies
- Information
- International Astronomical Union Colloquium , Volume 85: Properties and Interactions of Interplanetary Dust , 1985 , pp. 185 - 189
- Copyright
- Copyright © Reidel 1985