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Record of solar and galactic radiations in the ancient lunar regolith and their implications for the early history of the sun and moon

Abstract

A variety of techniques are available for studying past variations of solar wind, solar flares, galactic cosmic rays, and micrometeorites. Lunar rock results which average over the recent past (approximately 10 Ma) indicate no major changes in any of these components. At longer times, recent data suggest secular changes in the /sup 15/N//sup 14/N ratio in the solar wind, possibly due to enhanced solar flare activity. With the deployment of new techniques, it now appears possible to measure solar wind, solar flare, and micro-meteorite records in individual grains removed from different layers of lunar cores. Such grains have been exposed for brief intervals of time (10/sup 3/ to 10/sup 4/ a) for times extending at least 10/sup 9/ a in the past. Lunar and meteoritic breccias are promising candidates for extending the record back still further, perhaps close to the beginning of the solar system.
Authors:
Crozaz, G; Poupeau, G; Walker, R M; Zinner, E; Morrison, D A [1] 
  1. Washington Univ., St. Louis, Mo. (USA)
Publication Date:
Mar 31, 1977
Product Type:
Conference
Reference Number:
AIX-08-311836; EDB-77-102515
Resource Relation:
Journal Name: Philos. Trans. R. Soc. London, Ser. A; (United Kingdom); Journal Volume: 285:1327; Conference: The moon - a new appraisal from space missions and laboratory analyses, arranged by the British National Committee on Space Research, London, UK, 9 - 12 Jun 1975
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COSMIC RADIATION; VARIATIONS; MOON; KINETICS; SOLAR RADIATION; SOLAR SYSTEM EVOLUTION; SUN; DEPTH; ISOTOPE RATIO; LUNAR MATERIALS; METEORITES; NITROGEN 14; NITROGEN 15; PHYSICAL RADIATION EFFECTS; ROCKS; SOLAR FLARES; SOLAR WIND; SPATIAL DISTRIBUTION; TIME DEPENDENCE; DIMENSIONS; DISTRIBUTION; IONIZING RADIATIONS; ISOTOPES; LIGHT NUCLEI; NITROGEN ISOTOPES; NUCLEI; ODD-EVEN NUCLEI; ODD-ODD NUCLEI; RADIATION EFFECTS; RADIATIONS; SATELLITES; SOLAR ACTIVITY; STABLE ISOTOPES; STARS; 640104* - Astrophysics & Cosmology- Solar Phenomena; 640107 - Astrophysics & Cosmology- Planetary Phenomena
OSTI ID:
7215208
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: PTRMA
Submitting Site:
INIS
Size:
Pages: 587-592
Announcement Date:
May 13, 2001

Citation Formats

Crozaz, G, Poupeau, G, Walker, R M, Zinner, E, and Morrison, D A. Record of solar and galactic radiations in the ancient lunar regolith and their implications for the early history of the sun and moon. United Kingdom: N. p., 1977. Web.
Crozaz, G, Poupeau, G, Walker, R M, Zinner, E, & Morrison, D A. Record of solar and galactic radiations in the ancient lunar regolith and their implications for the early history of the sun and moon. United Kingdom.
Crozaz, G, Poupeau, G, Walker, R M, Zinner, E, and Morrison, D A. 1977. "Record of solar and galactic radiations in the ancient lunar regolith and their implications for the early history of the sun and moon." United Kingdom.
@misc{etde_7215208,
title = {Record of solar and galactic radiations in the ancient lunar regolith and their implications for the early history of the sun and moon}
author = {Crozaz, G, Poupeau, G, Walker, R M, Zinner, E, and Morrison, D A}
abstractNote = {A variety of techniques are available for studying past variations of solar wind, solar flares, galactic cosmic rays, and micrometeorites. Lunar rock results which average over the recent past (approximately 10 Ma) indicate no major changes in any of these components. At longer times, recent data suggest secular changes in the /sup 15/N//sup 14/N ratio in the solar wind, possibly due to enhanced solar flare activity. With the deployment of new techniques, it now appears possible to measure solar wind, solar flare, and micro-meteorite records in individual grains removed from different layers of lunar cores. Such grains have been exposed for brief intervals of time (10/sup 3/ to 10/sup 4/ a) for times extending at least 10/sup 9/ a in the past. Lunar and meteoritic breccias are promising candidates for extending the record back still further, perhaps close to the beginning of the solar system.}
journal = []
volume = {285:1327}
place = {United Kingdom}
year = {1977}
month = {Mar}
}