Other
Scientific paper
Apr 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981e%26psl..53..175n&link_type=abstract
Earth and Planetary Science Letters, Volume 53, Issue 2, p. 175-188.
Other
26
Scientific paper
Isotopic and elemental compositions of rare gases in various types of gas samples collected in the Japanese Islands were investigated. Excess 3He was found in most samples. Many samples showed a regionally uniform high 3He/4He ratio of about 7 times the atmospheric ratio. The He concentrations varied from 0.6 to 1800 ppm, and they were low in CO2-rich gases and high in N2-rich gases. Ne isotopic deviations from the atmospheric Ne were detected in most volcanic gases. The deviations and the elemental abundance patterns in volcanic gases can be explained by a mixing between two components, one is mass fractionated rare gases and the other is isotopically atmospheric and is enriched in heavy rare gas elements. Ar was a mixture of mass fractionated Ar, atmospheric Ar and radiogenic Ar, and the contribution of radiogenic 40Ar was small in all samples. Except for He, elemental abundance patterns were progressively enriched in the heavier rare gases relative to the atmosphere. Several samples were highly enriched in Kr and Xe relative to the abundance pattern of dissolution equilibrium of atmospheric rare gases in water. The component which is highly enriched in heavy rare gases may be released from sedimentary materials in the crust.
Matsubayashi Osamu
Nagao Keisuke
Takaoka Nobuo
No associations
LandOfFree
Rare gas isotopic compositions in natural gases of Japan does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Rare gas isotopic compositions in natural gases of Japan, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rare gas isotopic compositions in natural gases of Japan will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-782107