GEOCHEMISTRY AND ISOTOPE SYSTEMATICS OF SULFUR IN THE MIXING ZONE OF BAHAMIAN BLUE HOLES

被引：66

作者：

BOTTRELL, SH

SMART, PL

WHITAKER, F

RAISWELL, R

机构：

[1] Department of Earth Sciences, Leeds University, Leeds

[2] Department of Geography, Bristol University, Bristol

[3] Department of Earth Sciences, Leeds University, Leeds

来源：

APPLIED GEOCHEMISTRY | 1991年 / 6卷 / 01期

关键词：

D O I：

10.1016/0883-2927(91)90066-X

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：

A profile of aqueous S species concentrations and stable isotope compositions is presented for the mixing zone of Cousteau's Blue Hole, North Andros, Bahamas, together with similar, but less detailed results from two other blue holes. These data show that S-0 and S-2- are produced by bacterially mediated sulphate reduction near the base of the mixing zone and that these species are reoxidized at shallower levels. Acidity generated by oxidation can contribute to corrosion of limestone wall-rock. Estimated rates of such corrosion range up to 1200 mm wall-rock recession per 10 ka at Cousteau's Blue Hole (equivalent to 16% porosity generation per 10 ka) and are comparable with rates of dissolution caused by inorganic mixing corrosion.

引用

页码：97 / 103

页数：7

共 20 条

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