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Showing papers in "Chemical Geology in 2010"


Journal ArticleDOI
TL;DR: In this article, the ages of 43 volcanic rocks from the four recognized formations (Manketouebo, Manitu, Baiyingaolao and Meiletu) in the southern Great Xing'an Range are presented.

398 citations


Journal ArticleDOI
TL;DR: In this paper, trace-element compositions of olivine from 75 mantle rocks of diverse origin, including xenoliths from kimberlites, basaltic lavas and orogenic peridotites, were determined by laser ablation ICP-MS to study systematic variations between mantle lithologies.

340 citations


Journal ArticleDOI
TL;DR: In this paper, in-situ detrital zircon U-Pb and Hf isotopic analyses of sedimentary rocks from the Xigaze fore-arc basin, which developed along the southern margin of the Lhasa terrane.

303 citations


Journal ArticleDOI
TL;DR: In this article, an assemblage of high-precision LA-ICP-MS measurements has been critically compiled in order to provide a window into the chemical composition of these mantle-derived materials and their respective source region(s), commonly referred to as the depleted MORB mantle (DMM).

291 citations


Journal ArticleDOI
TL;DR: In this paper, the Baogutu adakitic rocks were most probably generated by partial melting of a slab edge close to a subducting spreading ridge in the Late Carboniferous.

288 citations


Journal ArticleDOI
TL;DR: In this paper, the authors proposed that the compositional heterogeneity in the Earth's mantle is induced by, and intrinsic to the recycling process and not principally dependent on intra-mantle stirring of a limited number of originally distinct and physically separate mantle reservoirs.

245 citations


Journal ArticleDOI
TL;DR: In this paper, the authors applied detailed multi-step CA-TIMS measurements to a suite of zircon samples selected for apparent perfect concordance except for small deviations that could be explained by errors in the constants used in age calculations.

232 citations


Journal ArticleDOI
TL;DR: In this article, the authors compared the geochemical properties of calc-alkaline and peralkaline granitoids from the two igneous suites in the northernmost part of the Arabian-Nubian Shield.

217 citations


Journal ArticleDOI
TL;DR: In this paper, a pseudosection is presented that is contoured for monazite modal amount, YPO4 composition, garnet amount and YAG composition, and xenotime amount.

192 citations


Journal ArticleDOI
TL;DR: In this paper, the chemical status of major and trace elements and organic carbon in the Severnaya Dvina and Pinega rivers draining granitic moraine, carbonate and sedimentary deposits of the Arkhangelsk region (NW Russia, the White Sea basin of the Arctic Ocean).

191 citations


Journal ArticleDOI
TL;DR: In this paper, the Frio-I Brine Pilot was used to demonstrate the potential for geologic storage of CO 2 in saline aquifers, during which 1600 T CO 2 were injected into a high-permeability sandstone and the resulting subsurface plume of CO2 was monitored using a variety of hydrogeological, geophysical, and geochemical techniques.

Journal ArticleDOI
TL;DR: In this paper, the solubility of H2O and CO2-bearing fluids in tholeiitic basalts has been investigated experimentally at temperature of 1250 °C and pressures of 50, 100, 200, 300, 400 and 500 MPa.

Journal ArticleDOI
TL;DR: In this article, the authors analyzed Cenozoic intra-continental alkaline basalts from Shandong province, North China and found that the strongly alkaline rocks have stronger negative K, Zr, Hf, and Ti anomalies (Hf/Hf* = 0.59-0.71) than do the weakly alkaline ones.

Journal ArticleDOI
TL;DR: The Wailapally granitic aquifer of Nalgonda district, Andhra Pradesh, India has high concentrations of fluoride (up to 7.6 mg/L) as discussed by the authors.

Journal ArticleDOI
TL;DR: The Tso Morari serpentinites in the Ladakh area, northwest Himalaya, originated from the forearc mantle overlying the northward subducting Neo-Tethys lithosphere and the margin of the Indian continent as mentioned in this paper.

Journal ArticleDOI
TL;DR: In this paper, the transition from allanite to monazite-bearing assemblages in typical pelitic bulk compositions have been made using thermodynamic data estimated from oxide sums and inferred from natural parageneses.

Journal ArticleDOI
TL;DR: Titanite from the Tonglushan Cu-Fe-Au skarn deposit, Daye district, eastern China, has been successfully dated by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) as mentioned in this paper.

Journal ArticleDOI
TL;DR: Anaerobic batch and flow-through experiments were performed to confirm the role of pyrite as electron donor in bacterial denitrification and to look into the feasibility of Pyrite-driven denitification of nitrate-contaminated groundwater.

Journal ArticleDOI
TL;DR: In this article, Pb isotopic and trace element analyses were applied to the geochemical characterization of polygenetic zircons in the San Bernardino and Granite Mountains intrusive suites, two contemporaneous but compositionally distinct suites emplaced in the early evolutionary stage of the western U.S. Cordillera magmatic arc.

Journal ArticleDOI
TL;DR: The authors measured rare earth elements and selected trace elements in 48 samples of carbonate and chert from stromatolites and associated facies in the 3.45 billion year old Strelley Pool Formation, Pilbara Craton, Western Australia.

Journal ArticleDOI
TL;DR: In this paper, several hypothesized mechanisms for this "chemostatic behavior" were evaluated, and the potential for those mechanisms to in! uence relations between climate, weathering, and CO2 consumption via mineral weathering was assessed.

Journal ArticleDOI
TL;DR: In this article, the authors investigated sediment total mercury (Hg) concentrations and Hg stable isotopic compositions in the vicinity of two former non-ferrous metal (zinc) refineries in Lommel (Kempen, Belgium) and Viviez (Aveyron, France).

Journal ArticleDOI
TL;DR: In this paper, the authors investigated the origin of dolomite in the sediments of Qinghai Lake, an inland, slightly saline lake (salinity 12.5 g/L) on the Tibetan Plateau, NW China.

Journal ArticleDOI
TL;DR: In this article, the authors used geochemical tracers in stream water to identify changes in thaw depth in an arctic watershed, based on marked differences in geochemistry with depth in soils and permafrost on the Alaskan North Slope.

Journal ArticleDOI
TL;DR: In this paper, a laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) and solution ICP-MS were used to track the changing elemental composition in a paragenetic sequence as well as in individual phases.

Journal ArticleDOI
TL;DR: ICP-QMS has been used to date deep-water corals and stalagmites with high precision of 3.4 and 1.1%, respectively, this paper, using a simplified chemical separation technique for uranium and thorium using UTEVA resin.

Journal ArticleDOI
TL;DR: In this paper, groundwaters and sediments were sampled approximately along a groundwater flow path in the shallow aquifer of the Hetao Basin, Inner Mongolia, where groundwater evolves from Ca-HCO3-SO4 through Mg-Ca-H CO3-Cl to Na-Cl-HO3 from the recharge zone to the discharge.

Journal ArticleDOI
TL;DR: In this article, the authors used the results of 300 1-bar experiments on Ni partitioning between olivine and liquid to calibrate a composition and temperature-dependent equation for D Ni Ol / melt (wt. ratio).

Journal ArticleDOI
Si-Liang Li1, Cong-Qiang Liu1, Jun Li1, Yun-Chao Lang1, Hu Ding1, Longbo Li1 
TL;DR: The Houzhai catchment is a typical karstic catchment in the Changjiang River Basin, Southwest China, and the carbon isotopic compositions ( δ 13 C DIC ) of DIC in the samples collected from the catchment vary from −13.5 to −6.9 as discussed by the authors.

Journal ArticleDOI
TL;DR: In this article, the authors revisited the fundamental question in mineral dissolution kinetics: is the function of dissolution rate versus the distance from equilibrium continuous, or does the switch between two different reaction mechanisms cause a discontinuity, i.e., a kinetic bifurcation?