RARE GASES IN THE CHONDRITE PANTAR

Journal Article · Tue May 01 04:00:00 EDT 1962 · J. Geophys. Research

DOI:https://doi.org/10.1029/JZ067i005p02017· OSTI ID:4830389

Merrihue, C M; Pepin, R O; Reynolds, J H

Ne and He stadies for the chondrite Pantar were confirmed, and measurements were extended to include Ar and Xe. The light phase of this meteorite is typical of most chondrites in its content of radiogenic He/sup 4/ and Ar/sup 40/ and cosmogenic He/sup 3/, neon, and argon. The dark phase, in which opaque minerals outiine the chondrules, is rich in primordial rare gases. Primordial xenon, exhibiting general isotopic anomalies identical to those found in carbonaceous chondrites, occurs in both phases but is 12 times more abundant in the dark phase. Radiogenic Xe/sup 129/ from I/sup 129/ decay occurs in both phases but is 53 times more abundant in the dark phase. The primordial gas spectrum resembles other meteorites in its He/Ne and Xe/Ar ratios. In its Ar/Ne and Ne/sup 20/Ne/sup 22/ ratios it resembles Pesyanoe and belongs to what can be loosely described as a cosmic group of gas-rich stones. (auth)

• Research Organization: Univ. of California, Berkeley
• NSA Number: NSA-16-019167
• OSTI ID: 4830389
• Journal Information: J. Geophys. Research, Journal Name: J. Geophys. Research Vol. Vol: 67
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ARGON
ARGON 40
COLOR
COSMIC RADIATION
DECAY
DISTRIBUTION
GEOLOGY, MINERALOGY, AND METEOROLOGY
HELIUM
HELIUM 3
HELIUM 4
INTERACTIONS
IODINE 129
METEORITES
NEON
NEON 20
NEON 22
QUANTITY RATIO
RARE GASES
VARIATIONS
XENON
XENON 129
XENON ISOTOPES