Physics
Scientific paper
Oct 1973
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1973e%26psl..20..286k&link_type=abstract
Earth and Planetary Science Letters, Volume 20, Issue 2, p. 286-294.
Physics
2
Scientific paper
Kr and Xe were measured by a stepwise heating technique in three samples of a drill core in the ``Minnesota'' fragment of the Estherville mesosiderite. The cosmogenic 78Kr/83Kr decreased from the ``top'' sample to the ``bottom'' sample (``top'' = 0.163 +/- 0.005, ``bottom'' = 0.151 +/- 0.005) while the cosmogenic 131Xe/126Xe ratio increased (``top'' = 5.58 +/- 0.35, ``bottom'' = 6.92 +/- 0.17). Cosmic-ray track studies have shown that the ``top'' sample was indeed closer to the preatmospheric surface than the ``bottom'' sample by ~ 10 cm. This is the first direct evidence, in a sample of known geometry, that the cosmogenic 131Xe/126Xe ratio increases as a function of depth, and as such, confirms the hypothesis that the lunar 131Xe anomaly is a bona fide depth effect due to resonance neutron capture in 130Ba.
Kaiser Wulf A.
Rajan Sundar R.
No associations
LandOfFree
The variation of cosmogenic Kr and Xe in a core from Estherville mesosiderite: direct evidence that the lunar 131Xe anomaly is a depth effect 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 The variation of cosmogenic Kr and Xe in a core from Estherville mesosiderite: direct evidence that the lunar 131Xe anomaly is a depth effect, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The variation of cosmogenic Kr and Xe in a core from Estherville mesosiderite: direct evidence that the lunar 131Xe anomaly is a depth effect will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1510151