Techniques for geological dating of minerals by chemical etching of fission fragment tracks

Details Techniques for geological dating of minerals by chemical etching of fission fragment tracks Techniques for geological dating of minerals by chemical etching of fission fragment tracks

Oct 1964

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1964gecoa..28.1705f&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 28, Issue 10-11, pp.1705-1712

Mathematics

Logic

22

Scientific paper

Recent experiments on mica and natural glasses have shown that the number of irradiation damage tracks created by spontaneous fission of uranium atoms in these materials is a useful measure of geological time. In order to be able to extend this technique to other minerals it is necessary to be able to observe and identify fission tracks. Suitable chemical etching treatments are described for revealing such tracks in a variety of minerals, and rules are given for distinguishing fission tracks from dislocation and other defects. Dating results are given for two hornblendes and an apatite as examples of the procedures. Track studies also give a sensitive measure of the present and past distribution of uranium atoms in minerals.

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