SOURCE OF SULFUR IN THE EBRO BASIN (NORTHERN SPAIN) TERTIARY NON-MARINE EVAPORITE DEPOSITS AS EVIDENCED BY SULFUR ISOTOPES

被引：27

作者：

BIRNBAUM, SJ ^{[1
]}

COLEMAN, M ^{[1
]}

机构：

[1] INST GEOL SCI,INST GEOL SCI,LONDON WC1X 8NG,ENGLAND

来源：

CHEMICAL GEOLOGY | 1979年 / 25卷 / 1-2期

关键词：

D O I：

10.1016/0009-2541(79)90091-3

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：

The Ebro Basin is an intermontane basin, located in northern Spain, filled with Tertiary (largely Oligocene and Miocene) clastic and chemical deposits. Sulphur isotopes are utilized to determine the source of sulphur in the sulphate deposits (predominantly gypsum with accessory thenardite, mirabolite and epsomite). Data obtained from Tertiary gypsum rocks produce a range of δ 34S values from +9.16‰ to +14.02‰, with a mean of +13.61‰. Data obtained from Triassic gypsum rocks (in source area) produce a range from +13.73‰ to +15.14‰, with a mean of +14.66‰. Values for Tertiary marine water range from +18‰ to +24‰. These data indicate a nonmarine origin for sulphur within the Tertiary sulphate rocks. The contribution of Triassic sulphur to the groundwater system, plus varying degrees of dilution by isotopically lighter (atmospheric and sulphide) sulphur, best explains the isotopic ratios observed in the Tertiary Ebro Basin deposits. © 1979.

引用

页码：163 / 168

页数：6

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