Thermoluminescence and the terrestrial age of meteorites - Some recent results

Details Thermoluminescence and the terrestrial age of meteorites - Some recent results Thermoluminescence and the terrestrial age of meteorites - Some recent results

Jan 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980e%26psl..46..159s&link_type=abstract

Earth and Planetary Science Letters, vol. 46, no. 2, Jan. 1980, p. 159-166. Research supported by the Science Research Council

Computer Science

5

Geochronology, Meteorites, Terrain Analysis, Thermoluminescence, Planetary Evolution, Space Exploration, Statistical Analysis, Meteorites, Thermoluminescence, Terrestrial Ages, Carbon 14, Dating Techniques, Statistical Analysis, Ratios, Intensity, Temperatures, Plainview Meteorite, Comparisons, Procedure, Allan Hills Meteorites, Techniques, Data, Glow Curve, Kinetics, Antarctic Meteorites, Alha77003, Alha77272, Alha77214, Catalog, Calliham Meteorite, Wellmen Meteorite, Etter Meteorite, Shields Meteorite, Cl

Scientific paper

This paper reports the results of an examination of the thermoluminescence (TL) of 23 meteorites which were observed to fall, and 17 meteorite finds which have had their terrestrial age determined by the C-14 method. The terrestrial ages of the observed falls range from 1 to 205 years, while the C-14 terrestrial ages range from 1,200 plus or minus 2,000 to greater than 20,000 years. A statistically significant correlation has been observed between the natural TL, as expressed as the ratio of the intensity of the low-temperature TL peak to that of the high-temperature peak, and the terrestrial age of the 40 meteorites. Furthermore, peak height ratios in excess of 3.0 are only observed in falls which fell within the last 250 years, suggesting that finds with peak height ratios as large as this, such as Allan Hills A77003 and Plainview (1917), fell within the last few hundred years

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