Inverse geochemical modeling of groundwater evolution with emphasis on arsenic in the Mississippi River Valley alluvial aquifer, Arkansas (USA)

Inverse geochemical modeling (PHREEQC) was used to identify the evolution of groundwater with emphasis on arsenic (As) release under reducing conditions in the shallow (25–30 m) Mississippi River Valley Alluvial aquifer, Arkansas, USA. The modeling was based on flow paths defined by high-precision (...

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Bibliographic Details
Published in:	Journal of hydrology (Amsterdam) Vol. 350; no. 1; pp. 41 - 55
Main Authors:	Sharif, M.U., Davis, R.K., Steele, K.F., Kim, B., Kresse, T.M., Fazio, J.A.
Format:	Journal Article
Language:	English
Published:	Amsterdam Elsevier B.V 15.02.2008 [Amsterdam; New York]: Elsevier Elsevier Science
Subjects:	aquifers Arkansas Arsenic cation exchange capacity Earth sciences Earth, ocean, space Engineering and environment geology. Geothermics Exact sciences and technology Geochemistry groundwater hydrochemistry Hydrogeochemistry Hydrogeology hydrologic models Hydrology. Hydrogeology inverse geochemical modeling Inverse modeling iron oxyhydroxides manganese oxyhydroxides Mineralogy MINTEQA2 PHREEQC Pollution, environment geology redox potential reducing conditions reduction Saturation indices Silicates Water geochemistry Arkansas Mississippi Valley Jefferson County Arkansas United States Mississippi River USA, Arkansas USA, Mississippi R. Valley Hydrogeochemistry Saturation indices Arsenic MINTEQA2 Inverse modeling PHREEQC siderite oxides fluorides X-ray diffraction ground water inverse modeling calcite sulfates North America saturation aquifers hydrochemistry fluorite contour maps vivianite flow chlorides scanning electron microscopy cations iron oxihydroxides halite dissolution bicarbonate ion hydrodynamics arsenic carbonates halides gypsum water quality geochemical models phosphates organic materials
ISSN:	0022-1694, 1879-2707
Online Access:	Get full text
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