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The rare earth element (REE) signature of ground waters from both felsic volcanic rocks on the Nevada Test Site and from the regional Paleozoic carbonate aquifer of southern Nevada resemble the REE s...
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This work analyses the spatial distribution, the origin, and the shale-normalised fractionation patterns of the rare earth elements (REE) in the alluvial aquifer of the Guadiamar River (south ...
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Rare earth elements (REE) including the lanthanide group and yttrium can be separated into three subgroups according to their atomic weight: light REE (LREE, La–Sm), medium REE (MREE, Eu–Tb), and heavy REE (HREE, Dy–Lu). ... application to a karst aquifer using trace metals and rare earth elements as provenance indicators. …
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Rare earth element (REE) adsorption onto sand from a well characterized aquifer, the Carrizo Sand aquifer of Texas, has been investigated in the laboratory using a batch method. The aim was to improve our understanding of REE adsorption behavior across the REE series and to develop a surface complexation model for the REEs, which …
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Rare Earth Element Distributions and Trends in Natural Waters with a Focus on Groundwater Clinton W. Noack †‡ David A. Dzombak ‡ Athanasios K. Karamalidis …
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The rare earth element (REE) is important not only in world industrial demand 1, but also in tracing various geochemical processes 2. REE is widely used for …
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Guo H M, Zhang B, Wang G C, et al. Geochemical controls on arsenic and rare earth elements approximately along a groundwater flow path in the shallow aquifer of the Hetao basin, Inner Mongolia. Chem Geol, 2010, 270: 117–125. Article Google Scholar Ministry of Health of PR China.
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With the aim of elucidating the seasonal behaviour of rare earth elements (REEs), surface and groundwaters were collected under dry and wet conditions…
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Rare earth elements (REEs) are believed to be potential tracers for studying groundwater–aquifer rock interactions because of their generally coherent and predictable behavior (Tang and Johannesson, 2006). ... From the aquifer sampled nearest to the recharge zone to a distance of 3.7 ...
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Tang, J. & Johannesson, K. H. Controls on the geochemistry of rare earth elements along a ground water flow path in the Carrizo Sand aquifer, Texas, USA. Chem. Geol. 225 (1–2), 156–171 (2006).
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Three cubic-meters of CO 2-saturated water was injected into a subsurface fractured aquifer in a post-mined area, using a push-pull test protocol.Groundwater samples were collected before and after CO 2-injection to quantify geochemical changes.CO 2-injection initially reduced the pH of water from 7.3 to 5.7, led to the enrichment of major …
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Rare earth element concentrations generally decrease along the groundwater flow path in the Carrizo sand aquifer, whereas in the Upper Floridan aquifer, the Nd concentrations increase first and then slightly decrease, Gd concentrations are erratic, and Er tends to decrease along the groundwater flow path.
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Rare earth elements (REE) as tracers in groundwater (Johannesson and Lyons, 2001; Zhang et al., 2001;Kimoto et al., 2006) will be used as a special tool to understand the origin of the ...
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The U.S. Geological Survey water-monitoring program in the Black Mesa area began in 1971 and provides information about the long-term effects of groundwater withdrawals from the N aquifer for industrial and municipal uses. The monitoring program includes measuring potential recovery in the N aquifer as a result of the reduction in …
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Request PDF | Behavior of rare earth elements in an aquifer perturbed by CO2 injection: Environmental implications | Three cubic-meters of CO2-saturated water was injected into a subsurface ...
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Introduction. Rare earth elements (REE) are of interest to chemical hydrogeologists because of their potential as sensitive tracers for studying groundwater–aquifer rock interactions and, in some cases, for tracing groundwater flow (Smedley, 1991, Fee et al., 1992, Johannesson et al., 1997a, Johannesson et al., 1997b, …
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Rare earth elements (REEs) comprise 17 chemically similar metallic elements, including the 15 metals of the lanthanide series from La to Lu. ... Distribution of rare earth elements in an alluvial aquifer affected by acid mine drainage: the Guadiamar aquifer (SW Spain) Environ. Pollut., 135 (1) (2005), pp. 53-64, 10.1016/j.envpol.2004.10.014.
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Ligand extraction of rare earth elements from aquifer sediments: Implications for rare earth element complexation with organic matter in natural waters. Geochim Cosmochim Ac 2010; 74(23): 6690-6705. 4. Johannesson KH, Tang J, Daniels JM, Bounds WJ, Burdige DJ. Rare earth element concentrations and speciation in organic-rich …
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Rare Earth Elements in Groundwater Flow Systems Home Book Editors: Karen H. Johannesson First volume of its kind entirely focused on the geochemistry of the lanthanide series elements in groundwater/aquifer …
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Rare earth element (REE) concentrations were measured in 5 well water samples and 3 springs located along a groundwater flow path in a shallow, tuffaceous alluvial aquifer from southern Nevada, USA. The REE concentrations in these groundwaters decrease in the direction of groundwater flow.
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rare-earth elements in an allu vial aquifer affected by acid mine . ... Rare earth element (REE), dissolved organic carbon (DOC) and trace-element (Al, Mn, Fe, Sr, Ba, U and Th) concentrations ...
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About 97% of the global supply of rare earths comes from China, especially from the Fe-REE-Nb mineral deposit at Bayan Obo in Inner Mongolia, it holds 36% of the …
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Rare earth elements (REE) were determined in 39 groundwater samples collected at 14 sites under low- and high-flow conditions. Water samples derived from …
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Fifty-seven shallow groundwater samples were collected from Guiyang karst basin, China, to analyze the aqueous rare-earth elements in low-water seasons and it is shown that the total amount of rare-earth elements (ΣREE) in karst groundwater is exceedingly low compared with that in carbonate rocks or weathering crusts of carbonate …
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The ability of organic matter as well as carbonate ions to extract rare earth elements (REEs) from sandy sediments of a Coastal Plain aquifer was investigated for unpurified organic matter from different sources (i.e., Mississippi River natural organic matter, Aldrich humic acid, Nordic aquatic fulvic acid, Suwannee River fulvic acid, and …
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Aquifer testing was conducted in the Paradox Valley alluvial aquifer in Montrose County, Colorado, including short-term (slug tests) and long-term (pumping tests) stresses on the hydrologic system to determine hydraulic properties of the aquifer. ... and rare earth elements Contamination from acid mine drainage affects ecosystems and usability ...
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Tang, J. & Johannesson, K. H. Ligand extraction of rare earth elements from aquifer sediments: implications for rare earth element complexation with organic matter in natural waters. Geochim ...
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In the Holocene aquifer, nitrogen ranges between 50 and 70 mg/L in the central area. P is less than 0.6 mg/L in both aquifers. In the Holocene aquifer, P is greater than 0.6 mg/L, with a maximum of 1.2 mg/L in the central area. In the Pleistocene aquifer, P ranges from 0.6 to 1.0 mg/L and occurs mainly in the south.
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This work analyses the spatial distribution, the origin, and the shale-normalised fractionation patterns of the rare earth elements (REE) in the alluvial aquifer of the Guadiamar River (south-western Spain). This river received notoriety in April 1998 for a spill that spread a great amount of slurry (mainly pyrites) and acid waters in a narrow …
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Rare earth elements (REEs) are believed to be potential tracers for studying groundwater–aquifer rock interactions because of their generally coherent and predictable behavior (Tang and Johannesson, 2006). ... Since As mobilization is closely related to redox conditions in the aquifer, it is reasonable to expect that the ubiquitous and ...
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