Geochemistry of carbonate precipitation from the groundwater in a coastal region
作者： N. Subba Rao , K. V. Srinivasa Rao , P. Surya Rao , Ch. Venkat Rao , K. Arjunudu
DOI: 10.1007/S12594-009-0050-8
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摘要: Groundwater samples were collected from a coastal region of Andhra Pradesh to assess the possible conditions formation carbonates. The area experiences semi-arid climate and is underlain by khondalites, over which Quaternary sediments occur. study geochemistry groundwater indicates that mostly fresh, with alkaline nature. further suggest breakdown feldspars as kaolinite during rock-water interaction, releases Ca2+. Soils/weathered products contribute high CO2 under open system. Ca2+ are added through infiltrating recharge water. They subsequently precipitate fine-grained carbonates in weathering profile due evapotranspiration freshwater environment.
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