Br/Cl,I/Cl and chlorine isotopic compositions of pore water in shallow sediments：implications for the fluid sources in the Dongsha area,northern South China Sea-中国期刊网

摘要 Dongsha区域是为在华南海(SCS)的煤气的水合物探索的最有希望的目标区域之一。毛孔水地球化学的学习在中国煤气的水合物探索起了一个关键作用。Br/Cl，I/Cl和37毛孔水里的Cl在在低温度沉积环境跟踪煤气的水合物出现，毛孔液体的化学进化和水/岩石相互作用这里被使用。样品在2004在Dongsha区域从地点HD255PC和HD309PC被收集。在地点HD255PC，我们发现了提高的Br/Cl，I/Cl并且那么减少了在4-5m的深度的4/Cl，可能从煤气的水合物出现产生的旁边地移植的液体暗示。37Clis-0.54到+0.96，和积极37在4-5m间隔的Cl应该与在35Cl和37Cl。在地点HD309PC，旁边地移植的液体也在3-4m的深度被发现，与Br/Cltwotimes到，显示海水和减少的I/Cl，液体没有与煤气的水合物的关系。在这个地点，氯同位素的作文改变from-0.7到+1.9。额外的高Br/Cl可能与深产生的液体联系。在更高的温度和压力，液体的Br/Cl在含水的硅酸盐形成期间被提高，当时积极37Cl也与一样的机制被联系。

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Br/Cl,I/Cl and chlorine isotopic compositions of pore water in shallow sediments：implications for the fluid sources in the Dongsha area,northern South China Sea

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Br/Cl,I/Cl and chlorine isotopic compositions of pore water in shallow sediments：implications for the fluid sources in the Dongsha area,northern South China Sea

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