Reevaluation of cosmogenic 36Cl production rates in terrestrial rocks

Fred M. Phillips, Marek G Zreda, Montgomery R. Flinsch, David Elmore, Pankaj Sharma

Research output: Contribution to journalArticle

105 Citations (Scopus)

Abstract

We have measured 36Cl in a suite of 33 rock samples having well-constrained exposure histories and ages. The 36Cl production parameters were estimated by minimizing the squared deviations between the 36Cl and independent ages, yielding the following production parameters: spallation and muon production from Ca 2940±200 atoms 36Cl (mole Ca)-1 yr-1, spallation from K 6020±400 atoms 36Cl (mole K)-1 yr-1, and neutron production in air 586±40 fast neutrons (g air)-1 yr-1. The new production constants for spallation on Ca and thermal neutron activation are in good agreement with previous results, but that for spallation on K is about 50% larger.

Original languageEnglish (US)
JournalGeophysical Research Letters
Volume23
Issue number9
StatePublished - May 1 1996

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spallation
rocks
air
rock
neutrons
history
fast neutrons
thermal neutrons
atoms
muons
rate
parameter
histories
activation
deviation
exposure

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)

Cite this

Phillips, F. M., Zreda, M. G., Flinsch, M. R., Elmore, D., & Sharma, P. (1996). Reevaluation of cosmogenic 36Cl production rates in terrestrial rocks. Geophysical Research Letters, 23(9).

Reevaluation of cosmogenic 36Cl production rates in terrestrial rocks. / Phillips, Fred M.; Zreda, Marek G; Flinsch, Montgomery R.; Elmore, David; Sharma, Pankaj.

In: Geophysical Research Letters, Vol. 23, No. 9, 01.05.1996.

Research output: Contribution to journalArticle

Phillips, FM, Zreda, MG, Flinsch, MR, Elmore, D & Sharma, P 1996, 'Reevaluation of cosmogenic 36Cl production rates in terrestrial rocks', Geophysical Research Letters, vol. 23, no. 9.
Phillips, Fred M. ; Zreda, Marek G ; Flinsch, Montgomery R. ; Elmore, David ; Sharma, Pankaj. / Reevaluation of cosmogenic 36Cl production rates in terrestrial rocks. In: Geophysical Research Letters. 1996 ; Vol. 23, No. 9.
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