Different isotopic evolutionary trends of δ34S and δ18O compositions of dissolved sulfate in an anaerobic deltaic aquifer system
作者： Takahiro Hosono , Oranuj Lorphensriand , Shin-ichi Onodera , Hirokazu Okawa , Takanori Nakano
DOI: 10.1016/J.APGEOCHEM.2014.04.012
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摘要: Abstract Concentration and isotope ratios (δ34SSO4 δ18OSO4) of dissolved sulfate groundwater were analyzed in a very large anaerobic aquifer system under the Lower Central Plain (LCP) (25,000 km2) Thailand. Groundwater samples collected two different kinds aquifers; type 1 with saline water contribution 2 lateritic aquifers no contribution. Two isotopic compositional trends observed: range from low values (+2.2‰ for δ34SSO4 +8.0‰ to high (+49.9‰ +17.9‰ δ18OSO4); (−0.1‰ +12.2‰ δ18OSO4 (+18.4‰) but (
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