Sulphur isotopic study on barite mineralization of the Tons valley, Lesser Himalaya, India: Implication for source and formation process

Rajesh Sharma; Priti Verma; Randall W. Law

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Sulphur isotopic study on barite mineralization of the Tons valley, Lesser Himalaya, India: Implication for source and formation process

机译：印度小喜马拉雅山Tons山谷重晶石矿化的硫同位素研究：对来源和形成过程的影响

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Sulphur isotopic study on barite (BaSO_4) mineralization, located about 65 km NW of Dehra Dun in the Tons valley, Lesser Himalaya, has shown that d d 34 S values of barite vary from +26.5 to +29.5‰. The data, coupled with earlier published abnormallyhigh value of 87 Sr/86 Sr in barite (0.720448 to 0.728637), have demonstra-ted that sulphur was derived from Proterozoic sea water and Ba was obtained from the radiogenic crustal source. These isotopic signatures suggest mixing of sea water sulphate with Ba-carrying crustal fluid for barite formation, with its initial deposition linked to diagene-sis of the host rocks.

机译：位于小喜马拉雅山通斯谷德赫拉敦西北约65公里处的重晶石（BaSO_4）矿化的硫同位素研究表明，重晶石的d d 34 S值在+26.5至+ 29.5‰之间变化。该数据，再加上较早发表的重晶石中异常高的87 Sr / 86 Sr值（0.720448至0.728637），证明了硫来自元古代海水，而Ba则来自放射地壳来源。这些同位素特征表明，将海水硫酸盐与携带Ba的地壳流体混合以形成重晶石，其初始沉积与基质岩的成岩作用有关。

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《Current Science: A Fortnightly Journal of Research》 |2006年第3期|共4页
作者
Rajesh Sharma; Priti Verma; Randall W. Law;
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正文语种 eng
中图分类自然科学现状及发展;
关键词
Barite; fluid mixing; Lesser Himalaya; sul-phur isotope;

机译：重晶石;流体混合;小喜马拉雅山;南北半干旱同位素;

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1. Sulphur isotopic study on barite mineralization of the Tons valley, Lesser Himalaya, India: Implication for source and formation process [J] . Rajesh Sharma, Priti Verma, Randall W. Law Current Science: A Fortnightly Journal of Research . 2006,第3期

机译：印度小喜马拉雅山Tons山谷重晶石矿化的硫同位素研究：对来源和形成过程的影响
2. Primary to re-equilibrated fluids and geochemical signatures for the evolution of the Nagthat siliciclastics in the Tons valley, Lesser Himalaya, India [J] . Priti Verma, Rajesh Sharma Journal of Asian earth sciences . 2007,第2a3期

机译：印度小喜马拉雅山通斯谷Nagthat硅质碎屑岩演化的主要至重新平衡的流体和地球化学特征
3. Chemical and strontium, oxygen, and carbon isotopic compositions of carbonates from the Lesser Himalaya: Implications to the strontium isotope composition of the source waters of the Ganga, Ghaghara, and the Indus rivers [J] . Sunil K. Singh, J. R. Trivedi, K. Pande, Geochimica et Cosmochimica Acta: Journal of the Geochemical Society and the Meteoritical Society . 1998,第5期

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4. Isotopic investigations for lakes: A case study of Lake Nainital in Kumaun Lesser Himalaya, India [C] . Bhishm Kumar, Rm.P. Nachiappan International conference on water resources management in arid regions . 2003

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5. Comparative neodymium, lead, and strontium isotopic study of alkalic complexes from East Africa and India: Implications for mantle source regions, melt dynamics and fluid processes [D] . Simonetti, Antonio. 1994

机译：来自东非和印度碱综合体的比较钕，铅和锶同位素研究：对地幔源区，熔体动力学和流体过程的影响
6. Evaluation of different digital elevation models for analyzing drainage morphometric parameters in a mountainous terrain: a case study of the Supin–Upper Tons Basin Indian Himalayas [O] . Sayantan Das, Priyank Pravin Patel, Somasis Sengupta -1

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7. Lesser Himalayan sequences in Eastern Himalaya and their deformation: Implications for Paleoproterozoic tectonic activity along the northern margin of India [O] . Dilip Saha 2013

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Sulphur isotopic study on barite mineralization of the Tons valley, Lesser Himalaya, India: Implication for source and formation process

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