Sulphur geodynamic cycle.

Sulphur geodynamic cycle.
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DOI:
10.1038/srep08330
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发表时间:
2015-02-09
期刊:
影响因子:
4.6
通讯作者:
Hattori K
Hattori K
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Kagoshima T;Sano Y;Takahata N;Maruoka T;Fischer TP;Hattori K

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估算火山和热液对表层环境的通量对于阐明硫的地球化学循环和海洋化学演化具有重要意义。本文介绍了海洋中脊玄武岩玻璃中的S/3 He比值以及高温热液流体的比值,以计算莫尔100 Gmol/y的硫通量。 高温火山气体的S/3 He比值表明,弧火山(ARC)的硫通量为720 Gmol/y,其中地幔的贡献为2.9%,计算为21 Gmol/y。  莫尔和ARC的C/S通量比为12,与地表清单中的C/S比值相当,表明地表环境中的这些元素来源于上地幔。
Evaluation of volcanic and hydrothermal fluxes to the surface environments is important to elucidate the geochemical cycle of sulphur and the evolution of ocean chemistry. This paper presents S/3He ratios of vesicles in mid-ocean ridge (MOR) basalt glass together with the ratios of high-temperature hydrothermal fluids to calculate the sulphur flux of 100 Gmol/y at MOR. The S/3He ratios of high-temperature volcanic gases show sulphur flux of 720 Gmol/y at arc volcanoes (ARC) with a contribution from the mantle of 2.9%, which is calculated as 21 Gmol/y. The C/S flux ratio of 12 from the mantle at MOR and ARC is comparable to the C/S ratio in the surface inventory, which suggests that these elements in the surface environments originated from the upper mantle.
DOI: 10.1016/0012-821x(75)90079-5
发表时间: 1975-01-01
影响因子: 5.3
作者:
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