HIGH-PRECISION MEASUREMENT OF CHLORINE STABLE-ISOTOPE RATIOS

被引：118

作者：

LONG, A

EASTOE, CJ

KAUFMANN, RS

MARTIN, JG

WIRT, L

FINLEY, JB

机构：

[1] NO ILLINOIS UNIV,DEPT GEOL,DE KALB,IL 60115

[2] US GEOL SURVEY,TUCSON,AZ 85719

[3] UNIV WYOMING,DEPT GEOL & GEOPHYS,LARAMIE,WY 82071

来源：

GEOCHIMICA ET COSMOCHIMICA ACTA | 1993年 / 57卷 / 12期

关键词：

D O I：

10.1016/0016-7037(93)90398-G

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

We present an analysis procedure that allows stable isotopes of chlorine to be analyzed with precision sufficient for geological and hydrological studies. The total analytical precision is less-than-or-equal-to +/- 0.09 parts per thousand, and the present known range of chloride in the surface and near-surface environment is 3.5 parts per thousand. As Cl- is essentially nonreactive in natural aquatic environments, it is a conservative tracer, and its deltaCl-37 is also conservative. Thus, the deltaCl-37 parameter is valuable for quantitative evaluation of mixing of different sources of chloride in brines and aquifers.

引用

页码：2907 / 2912

页数：6