A reevaluation of cosmogenic Cl-36 production rates in terrestrial rocks

被引：96

作者：

Phillips, FM ^{[1
]}

Zreda, MG ^{[1
]}

Flinsch, MR ^{[1
]}

Elmore, D ^{[1
]}

Sharma, P ^{[1
]}

机构：

[1] PURDUE UNIV,DEPT PHYS,PRIME LAB,W LAFAYETTE,IN 47907

来源：

GEOPHYSICAL RESEARCH LETTERS | 1996年 / 23卷 / 09期

关键词：

D O I：

10.1029/96GL00960

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

We have measured Cl-36 in a suite of 33 rock samples having well-constrained exposure histories and ages. The Cl-36 production parameters were estimated by minimizing the squared deviations between the Cl-36 and independent ages, yielding the following production parameters: spallation and muon production from Ca 2940+/-200 atoms Cl-36 (mole Ca)(-1) yr(-1), spallation from K 6020+/-400 atoms Cl-36 (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.

引用

页码：949 / 952

页数：4