๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Light elements and their isotopes in SNC meteorites and the Martian atmosphere

โœ Scribed by C. T. Pillinger; M. M. Grady; I. P. Wright


Publisher
Springer Netherlands
Year
1991
Tongue
English
Weight
285 KB
Volume
56
Category
Article
ISSN
0038-6308

No coin nor oath required. For personal study only.

โœฆ Synopsis


Nitrogen isotopes have played an important part in the acceptance of the hypothesis that SNC meteorites derive from Mars. As a result, these meteorites can be investigated for their carbon, sulphur, and hydrogen systematics with a view to learning something about the environmental conditions on the planet. Important aspects of the role of carbon, present in the forna of carbon dioxide as an atmospheric gas and leading to the formation of carbonates by weathering or hydrothermal activity, can be established. The presence of indigenous organics is an intriguing possibility. A variety of new or emerging techniques which could improve our understanding of SNC meteorites and might be applied to a returned Martian sample are discussed.


๐Ÿ“œ SIMILAR VOLUMES


Neutron Capture Isotopes in the Martian
โœ M.N. Rao; D.D. Bogard; L.E. Nyquist; D.S. McKay; J. Masarik ๐Ÿ“‚ Article ๐Ÿ“… 2002 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 258 KB

Impact-produced glasses in some martian meteorites have trapped significant amounts of the recent martian atmosphere. From literature data, we estimate that โˆผ9% of the trapped 80 Kr in these meteorites was produced from neutron capture on 79 Br. Estimates of neutron fluences made from 80 Kr and 149

Antiparticles and light element isotope
โœ G.I. Pugacheva; A.A. Gusev; U. Jayanthi; I.M. Martin; W.N. Spjeldvik ๐Ÿ“‚ Article ๐Ÿ“… 2002 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 171 KB

The ratio of positron=electron uxes originating in nuclear reactions in the Earth's Magnetosphere is considered. It is supposed that positrons as well as electrons are mainly produced in the decay of charged pions ยฑ โ†’ ยฑ โ†’ e ยฑ born in nuclear collisions of trapped relativistic inner zone protons and