Applied Geochemistry
Papers 5058
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#1Haiyan Zhu (Northwest Normal University)
#2Yongshan LiH-Index: 1
Last.Tong Qin (Ontario Ministry of Natural Resources)
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Abstract We analysed precipitation and river water samples from the Lijiang River basin with the aim of understanding the important role of acid rain components, especially NH4, in chemical weathering of karst areas. First, analysis of the hydrochemical characteristics revealed the following: In the precipitation samples, the volume-weighted mean pH was 4.91, and the acid rain rate was 65%. The major ion composition was characterized by a dominance of NH4, Ca, SO4 and NO3, accounting for 40%, 35...
#1Frédéric Rees (U of A: University of Alberta)H-Index: 1
#2Sylvie A. Quideau (U of A: University of Alberta)H-Index: 29
Last.Marty Yarmuch (Syncrude)H-Index: 1
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Abstract Post-mining land reclamation of Athabasca Oil Sands (AB, Canada) involves the reconstruction of soil profiles able to support a mosaic of boreal forest communities. However, the use of coarse-textured reclamation materials to recreate forest ecosystems represents a challenge in terms of soil water and nutrient availability. This work aimed to quantify nutrient leaching in reclaimed coarse-textured soils constructed with two coversoils (peat mineral mix and forest floor mineral mix) unde...
#1Raphaël Bondu (UQAT: Université du Québec en Abitibi-Témiscamingue)H-Index: 3
#2Vincent Cloutier (UQAT: Université du Québec en Abitibi-Témiscamingue)H-Index: 9
Last.Magalie Roy (UQAT: Université du Québec en Abitibi-Témiscamingue)H-Index: 2
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Abstract The presence of naturally occurring contaminants in groundwater is a public health concern in rural areas of northeastern North America, where public and private wells are important sources of drinking water. In southern Quebec (Canada), inorganic groundwater chemistry data have been recently collected following standard procedures in several regional hydrogeological projects implemented by the government of Quebec. In this study, a groundwater chemistry database was compiled from 16 re...
Abstract Within the framework of safe disposal of high and intermediate level radioactive waste, it is well known that for both the Boom Clay and overlying Eigenbilzen Sands (early Oligocene; Rupelian), the composition varies with depth. Though, a detailed understanding of how these intrinsic variations may affect the basic transport properties is still missing. Therefore, a small but comprehensive and unique data set, containing transport parameters (hydraulic conductivity and diffusivity) and ...
#1S. Sowmya (Yenepoya University)H-Index: 1
#2P.D. Rekha (Yenepoya University)H-Index: 1
Last.A.B. Arun (Yenepoya University)H-Index: 1
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Abstract Remediation of uranium contamination presents a significant environmental problem worldwide. Bioremediation has gained increasing importance as a feasible and eco-friendly strategy. Uranium tolerant phosphate solubilizing bacteria are considered as important candidates in the development of bioremediation technology. In this context, we have isolated bacteria from a proposed uranium mining site, Gogi in the Bhima river belt of Karnataka (South India) with special reference to phosphate ...
#1Kenneth Swift Bird (Colorado School of Mines)
#2Alexis K. Navarre-Sitchler (Colorado School of Mines)H-Index: 21
Last.Kamini Singha (Colorado School of Mines)H-Index: 30
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This study integrates geochemical modeling, spatial analysis and several statistical methods including principal component analysis, multivariate regression and cluster analysis to investigate hydrogeologic controls of arsenic and uranium contamination within groundwater of the Arikaree aquifer on the Pine Ridge Reservation. Located in southwestern South Dakota, the Pine Ridge Reservation is largely rural and many people rely on domestic supply wells completed in the Arikaree aquifer as their pr...
#1Julie K. Pearce (UQ: University of Queensland)H-Index: 12
#2A.D. La Croix (University of Waikato)
Last.Suzanne D. Golding (UQ: University of Queensland)H-Index: 36
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Abstract An understanding of the long-term reactivity of different rock types to injected CO2 is needed for sequestration site assessment. Relative to saline aquifer studies, the long term reactivity of CO2 in low salinity aquifers has received little attention. Currently in Australia, the Surat Basin is being appraised for its large-scale CO2 storage potential within low salinity aquifers. Sixteen core samples from the Precipice Sandstone and Evergreen Formation – the notional target reservoir ...
#2Adriana Bruggeman (The Cyprus Institute)H-Index: 18
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Abstract Ophiolites often form complex, fractured, multi-lithological and highly compartmentalized aquifers that are difficult to characterize. Groundwater chemistry reflects water-rock interactions and can provide insights to groundwater recharge mechanisms, flow paths and relative residence time. A comprehensive hydrogeochemical modelling approach with PHREEQC has been developed to identify water-rock interactions and simulate groundwater evolution and mixing with connate water in fractured aq...
#1Yudi Rahayudin (Kyoto University)
#2Koki Kashiwaya (Kyoto University)H-Index: 6
Last.Niniek Rina Herdianita (ITB: Bandung Institute of Technology)H-Index: 2
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Abstract Volcano-hosted, vapor-dominated geothermal systems have great potential for power generation, although to date, such systems discovered globally remain limited in number. Understanding of the physical and chemical properties of geothermal fluids (water and gas) in vapor-dominated systems is critical for the sustainable development of geothermal resources. This study aims to clarify the origins, water–rock interactions, and chemical evolution of geothermal fluids during migration from a ...
#1O.A. Ajayi (PSU: Pennsylvania State University)
#2J.D. Kubicki (UTEP: University of Texas at El Paso)
Abstract Interfacial energies between supercritical CO2 (scCO2) and water with a model clay surface under conditions related to hydraulic fracturing have been investigated using density functional theory (DFT) methods. Planewave DFT methods in the program VASP (Kresse and Furthmuller, 1996) were used to perform molecular dynamics (MD) simulations at a temperature of 333.33 K to calculate these interfacial energies and molecular structures. The calculated interfacial energies between scCO2 and wa...
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