Sulfur and strontium isotopic study of epithermal mineralization: A case study from the SE Afar Rift, Djibouti

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• 作者：N. Moussa^a ; ^c ; ^d ; ^{nmoussae@gmail.com} ; O. Rouxel^b ; N.V. Grassineau^e ; E. Ponzevera^c ; P. Nonnotte^d ; Y. Fouquet^c ; B. Le Gall^d
• 关键词：Hydrothermal system ; Sulfur isotopes ; Strontium isotopes ; SE Afar rift ; Epithermal
• 刊名：Ore Geology Reviews
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：81
• 期：part_P1
• 页码：358-368
• 全文大小：1695 K
• 卷排序：81

文摘

Sulfur and strontium isotopic compositions of sulfides and sulfates of hydrothermal veins from the SE Afar Rift (Djibouti). Sulfur isotopic compositions of sulfides (mainly pyrite) vary from − 9.2 to + 6.6‰. Strontium compositions of mineralized veins fall between 0.7039 and 0.7079. The δ34S values of the sulfate (gypsum) range from − 0.8 to + 14.3‰. The 87Sr/86Sr values of the sulfate fall in the range of 0.70389 to 0.70639. Magmatic and saline fluids contributed to the hydrothermal system in the SE Afar Rift.