 | | Journal (article/letter/editorial) | | from MX-80 montmorillonite (Clay Spur bed, Wyoming, USA; N2-BET surface area of 31.3 m2/g (Bradbury and Baeyens...montmorillonite (SWy-2, Newcastle formation, Wyoming, USA, Clay Mineral Society Source Clays; N2-BET surface...formation of HIS. Natural Zn-containing kaolinite (‘‘natural Zn-kaolinite”, 180 mg/kg Zn) from Decazeville,... France and synthetic Zn-kaolinite (‘‘synthetic Zn-kaolinite”) were kindly provided by Farid Juillot...Paris Diderot, Paris, France). The synthetic Zn-kaolinite was prepared as described in Petit et al. (1995) |  | Dávila, Gabriela, Dalton, Laura, Crandall, Dustin M., Garing, Charlotte, Werth, Charles J., Druhan, Jennifer L. (2020) Reactive alteration of a Mt. Simon Sandstone due to CO2-rich brine displacement. Geochimica et Cosmochimica Acta, 271. 227-247 doi:10.1016/j.gca.2019.12.015 | Journal (article/letter/editorial) | | UIUC, Department of Geology, Champaign, IL, 61820, USA. b U.S. Department of Energy’s National Energy...Energy Technology Laboratory, NETL, Morgantown, WV, USA. c d e Oak Ridge Institute for Science and Education... UGA, Department of Geology, Athens, GA, 30602, USA. University of Texas at Austin, UT, Deparment of...and Environmental Engineering, Austin, TX, 78712, USA. *Corresponding author: Gabriela Dávila (gabydo@illinois...calcite K-feldspar clinochlore illite siderite kaolinite dolomite pyrite SiO2(am) gypsum montmorillonite |  | Ceriotti, G., Porta, G.M., Geloni, C., Dalla Rosa, M., Guadagnini, A. (2017) Quantification of CO2 generation in sedimentary basins through carbonate/clays reactions with uncertain thermodynamic parameters. Geochimica et Cosmochimica Acta, 213. 198-215 doi:10.1016/j.gca.2017.06.015 | Journal (article/letter/editorial) | | Sciences, University of Arizona, Tucson, AZ 85721, USA Corresponding author: Giulia Ceriotti, Department...about the assumption of CO 2 PCO 2 in Electronic Annex II. The value of log K R (and therefore PCO 2 )...steps of the model are reported in the Electronic Annex I where a step-by-step illustration of the procedure...implemented in this work can be found in Electronic Annex I. We highlight here that any type of compaction/diagenesis...(1982). Further details can be found in Electronic Annex I. 6. CO2 partial pressure PCO 2 is evaluated upon |  | Wanner, Christoph, Pöthig, Rosemarie, Carrero, Sergio, Fernandez-Martinez, Alejandro, Jäger, Christian, Furrer, Gerhard (2018) Natural occurrence of nanocrystalline Al-hydroxysulfates: Insights on formation, Al solubility control and As retention. Geochimica et Cosmochimica Acta, 238. 252-269 doi:10.1016/j.gca.2018.06.031 | Journal (article/letter/editorial) | | Science, University of California Berkeley, Berkeley, USA. (sergio.carrero@berkeley.edu) d e Department of... 2000). In most acidic systems, gibbsite and kaolinite are the most stable secondary Al phases. However...structural models provided in Fig. S1, Electronic Annex). This is relevant because the latter has a chemical...mountainous stream “Ova Lavirun” (Fig. S2, Electronic Annex). The coatings are observed over a flow distance...surface area of about 100–200 m2 (Fig. S3, Electronic Annex). The pond is characterized by a slightly acidic |  | Lu, Peng, Luo, Pan, Zhang, Guanru, Zhang, Shuo, Zhu, Chen (2020) A mineral-water-gas interaction model of pCO2 as a function of temperature in sedimentary basins. Chemical Geology, 558. 119868pp. doi:10.1016/j.chemgeo.2020.119868 | Journal (article/letter/editorial) | | Sciences, Indiana University, Bloomington, IN 47405, USA c School of Earth Sciences, Chengdu University of...bracketed by albite-smectite-quartz/chalcedony and kaolinite-smectite-quartz/chalcedony equilibria, which impose...and additional species are listed in Electronic Annex I. For all thermodynamic calculations, standard...Quartz K-feldspar Plagioclase Illite Calcite Kaolinite Chlorite Pyrite Dolomite Ankerite Siderite Rock...subsidence, quartz, K-feld spar, albite, calcite, kaolinite, dolomite, and siderite were considered to be |  | | Journal (article/letter/editorial) | | Sciences, University of Georgia, Athens, GA 30602, USA Formerly at Department of Physics, University of...University of California, Santa Barbara, CA 93106, USA d Department of Soil, Water & Environmental Science...Science, University of Arizona, Tucson, AZ 85721, USA b Received 18 May 2010; accepted in revised form 8...shown in Figs. EA-9 and EA-10 of the Electronic Annex.) Soils from the drier two sites were double-bagged...on blue ice, homogenized in a 95%:5% N2:H2 glove box, frozen at 193 K and then freeze-dried before analysis |  | Niu, Danielle, Renock, Devon, Whitehouse, Martin, Leone, James, Rowe, Harry, Landis, Joshua, Hamren, Keith, Symcox, Carl W., Sharma, Mukul (2016) A relict sulfate–methane transition zone in the mid-Devonian Marcellus Shale. Geochimica et Cosmochimica Acta, 182. 73-87 doi:10.1016/j.gca.2016.03.004 | Journal (article/letter/editorial) | | Geosciences, Swedish Museum of Natural History, Box 50007, SE-104 05 Stockholm, Sweden, 3 New York State...University of Texas at Austin, University Station, Box X, Austin, TX 78713. * Corresponding author: Mukul...Oatka Creek Formation) from a core in Chenango County, NY, contains ~100 µm diameter ellipsoidal grains...core from mid-Devonian Marcellus Shale (Greene County, Pennsylvania) has identified most of the section...midDevonian Marcellus Shale from OCF-I in Chenango County, New York (Fig. 1b). The pattern of barium enrichment |  | Tosca, Nicholas J., Johnston, David T., Mushegian, Alexandra, Rothman, Daniel H., Summons, Roger E., Knoll, Andrew H. (2010) Clay mineralogy, organic carbon burial, and redox evolution in Proterozoic oceans. Geochimica et Cosmochimica Acta, 74 (5) 1579-1592 doi:10.1016/j.gca.2009.12.001 | Journal (article/letter/editorial) | | Harvard University, 26 Oxford St., Cambridge MA 02138, USA Department of Earth, Atmospheric, and Planetary Sciences...Massachusetts Institute of Technology, Cambridge MA 02139, USA Received 9 February 2009; accepted in revised form...diagenetic transformation of smectite and/or kaolinite-rich weathering products. This mineralogical signal...of weathering-derived clays (i.e., smectite or kaolinite) across the Precambrian–Cambrian boundary. Compared...of Cambridge, Downing Street, Cambridge CB2 3EQ, USA. Tel.: +44 (0) 1223 764368; fax: +44 (0) 1223 333450 |  | Gaucher, E.C., Tournassat, C., Pearson, F.J., Blanc, P., Crouzet, C., Lerouge, C., Altmann, S. (2009) A robust model for pore-water chemistry of clayrock. Geochimica et Cosmochimica Acta, 73 (21) 6470-6487 doi:10.1016/j.gca.2009.07.021 | Journal (article/letter/editorial) | | b Ground-Water Geochemistry, New Bern, NC 28562, USA c ANDRA, 1-7, rue Jean-Monnet, 92298 Châtenay-Malabry...further crushed in a high purity atmosphere glove box (BraunTM, PO2 <1 ppm), whereas samples preserved...in gas conditioning cells were crushed in a glove box under N2 flux following the standard procedure used...samples preserved in liquid N2 and prepared in a glove box containing <1 ppm O2 with results on samples preserved...of the core Liquid N2 <1 ppm O2 atmosphere glove-box 1.29 ± 0.1 2.14 ± 0.2 EST25687 Middle part Periphery |  | Jin, Lixin, Williams, Erika L., Szramek, Kathryn J., Walter, Lynn M., Hamilton, Stephen K. (2008) Silicate and carbonate mineral weathering in soil profiles developed on Pleistocene glacial drift (Michigan, USA): Mass balances based on soil water geochemistry. Geochimica et Cosmochimica Acta, 72 (4) 1027-1042 doi:10.1016/j.gca.2007.12.007 | Journal (article/letter/editorial) | | developed on Pleistocene glacial drift (Michigan, USA): Mass balances based on soil water geochemistry...Sciences, University of Michigan, Ann Arbor, MI 48104, USA Kellogg Biological Station and Department of Zoology...Michigan State University, Hickory Corners, MI 49060, USA Received 23 February 2007; accepted in revised form...Pennsylvania State University, University Park, PA 16802, USA. E-mail address: ljin@umich.edu (L. Jin). 1 Present...Washington and Lee University, Lexington, VA 24450, USA. 0016-7037/$ - see front matter Ó 2007 Elsevier Ltd |  | Gailhanou, H., Blanc, P., Rogez, J., Mikaelian, G., Kawaji, H., Olives, J., Amouric, M., Denoyel, R., Bourrelly, S., Montouillout, V., Vieillard, P., Fialips, C.I., Michau, N., Gaucher, E.C. (2012) Thermodynamic properties of illite, smectite and beidellite by calorimetric methods: Enthalpies of formation, heat capacities, entropies and Gibbs free energies of formation. Geochimica et Cosmochimica Acta, 89. 279-301 doi:10.1016/j.gca.2012.04.048 | Journal (article/letter/editorial) | | These are illite IMt-2 from Silver Hill (Montana, USA; Hower and Mowatt, 1966; Vogt et al., 2002) and beidellite...purification of a MX-80 bentonite sample from Wyoming (USA; Madsen, 1998; Guillaume et al., 2004). The illite...SBId-1 (Fig. 1), the spectrum was modelled using a kaolinite component (Q3 (0 Al), 92.7 ppm) and a quartz...beidellite SBId-1: modelled with beidellite, kaolinite (KGa-1) and quartz components and (b) smectite...amounts of kaolinite by XRD and 29Si NMR. According to the XRD analysis, the 0 0 1 peak of kaolinite was shifted |  | Mihaljevič, Martin, Baieta, Rafael, Ettler, Vojtěch, Vaněk, Aleš, Kříbek, Bohdan, Penížek, Vít, Drahota, Petr, Trubač, Jakub, Sracek, Ondra, Chrastný, Vladislav, Mapani, Benjamin Siyowi (2019) Tracing the metal dynamics in semi-arid soils near mine tailings using stable Cu and Pb isotopes. Chemical Geology, 515. 61-76 doi:10.1016/j.chemgeo.2019.03.026 | Journal (article/letter/editorial) | | Millipore Academic purifying system (Millipore, USA). D The total concentrations of Pb and Cu in the...deionized (DI) water (MilliQ Academic, Millipore®, USA) and shaken for 8 days on a table shaker at a temperature...filtered through a 0.1-μm membrane filter (Millipore®, USA). The pH, Eh, and electrical conductivity were immediately...soil profiles are given in Table A1 in Electronic Annex). The samples were taken on the basis of the value...Petrocalcic Chernozem (Table A1 in the Electronic Annex) profile P13 was described as Kastanozem, corresponding |  | | Journal (article/letter/editorial) | | CA94720, USA 2 Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA94720, USA Correspondence...California, Berkeley, McCone Hall 307, Berkeley, CA94720, USA. Phone: +1 510-277-5616 Abstract Significant solute... Stream water samples from the adjacent creek, Elder Creek, will be reported separately. We measured...123°38'34''W http://angelo.berkeley.edu), located along Elder Creek, a tributary of the South Fork of the Eel...triple junction. Current channel incision rate at Elder Creek is about 0.2 mmyr-1 but may have been closer |  | | Journal (article/letter/editorial) | | Sciences, University of Georgia, Athens, GA 30602, USA Department of Soil, Water & Environmental Science...85721, USA c Department of Geography, University of California, Santa Barbara, CA 93106, USA Received...Al oxides (goethite, hematite, gibbsite) and kaolinite with adsorbed organic matter at advanced stage...Additional information is provided in the Electronic Annex and in Chorover et al. (2004) and Mikutta et al...hydroxyl-interlayered vermiculite; K = kaolin minerals (kaolinite and/or halloysite); Gi = gibbsite; He = hematite; |  | Grosbois, C., Courtin-Nomade, A., Robin, E., Bril, H., Tamura, N., Schäfer, J., Blanc, G. (2011) Fate of arsenic-bearing phases during the suspended transport in a gold mining district (Isle river Basin, France). Science of The Total Environment, 409 (23). 4986-4999 doi:10.1016/j.scitotenv.2011.07.045 | Journal (article/letter/editorial) | | National Laboratory, Berkeley, California 94720, USA e Université de Bordeaux, UMR 5805 CNRS EPOC, Av...aggregates were formed by chlorite–phlogopite–kaolinite assemblages during the high flow and chlorite-...silicates, Ca-rich particles, As-rich particles (see Annex I.1 for chemical criteria). In a third and last...stoichiometric totals (Totstoichio; calculation in Annex I.2). In addition, the detection limit of As was...stoichiometric total calculated as for SEM/EDS-ACC system (Annex I.2). Averages and ranges of normalized concentrations |  | | Journal (article/letter/editorial) | | 2- John de Later Centre, Curtin University, GPO Box U1987, Perth, WA 6845, Australia. ABSTRACT Jo ur...and neoformation of clay minerals, especially kaolinite (e.g., Tardy and Nahon, 1985; Nahon, 1986; Théveniaut...thick with gibbsite, Al-goethite, hematite and kaolinite as the main minerals, and minor quartz and anatase...duricrust) (Fig. 3 and 5A). Voids are filled by kaolinite and quartz grains. Ferruginous duricrust (sample...fragmental texture; Al-goethite, Al-hematite and kaolinite are main mineral components as indicated by the |  | | Journal (article/letter/editorial) | | organic matter (Kuhn et al., 2012), and natural kaolinite clay samples containing trace Fe (Maurice et al...Na-exchanged montmorillonite (MMT) SWy-2 MMT (Cook County, WY) was obtained from the Source Clays Repository...of feldspar, gypsum, mica and/or illite, and kaolinite and/or chlorite and is approximately 3% Fe by...feldspar, and 1% gypsum, mica and/or illite, kaolinite and/or chlorite, but no Fe oxide phases in quantities...Methods are described in brief in the electronic annex. 2.3. Abiotic experiments 2.3.1. Batch siderophore |  | | Journal (article/letter/editorial) | | Sciences, Indiana University, Bloomington, IN 47405, USA Received 30 September 2008; accepted in revised form...precipitation in the Navajo aquifer at Black Mesa, Arizona, USA. In Water–Rock Interaction (eds. R. B. Wanty and...gibbsite and is undersaturated with respect to kaolinite and muscovite. At point 2, kao- such that on... Muscovite Muscovite 7 7 6 4 2 2 Kaolinite Kaolinite 0 1 -1 1 -2 -8 -8 (b) -7 -6 -7 -6...(c) -4 -5 log (aSiO2-4 (aq)) 1.E-03 -3 -3 Kaolinite -4.21 0 0 0 0 0 -0.12 -0.25 1 -2 -2 Microcline |  | | Journal (article/letter/editorial) | | analyzed elements can be found in the Electronic Annex EA-1. X-ray photoelectron spectroscopy (XPS) was...200 °C vary within 10% uncertainty (Electronic Annex EA-2). Particle size and particle size distribution...released elements can be found in the Electronic Annex EA-3. We measured pH using a glass combination electrode...directly from the grain size distribution (Electronic Annex EA-4). Derived values of the Si release rate (CSiR)...and traces of F and Cl (Table 2 and Electronic Annex EA-5). Ash samples, 1, 6, 7, and 8 were chosen for |  | Siebert, C., Pett-Ridge, J.C., Opfergelt, S., Guicharnaud, R.A., Halliday, A.N., Burton, K.W. (2015) Molybdenum isotope fractionation in soils: Influence of redox conditions, organic matter, and atmospheric inputs. Geochimica et Cosmochimica Acta, 162. 1-24 doi:10.1016/j.gca.2015.04.007 | Journal (article/letter/editorial) | | Science, Oregon State University, Corvallis OR 97331, USA 1 Abstract Molybdenum isotope fractionation accompanying...approximately 50% quartz, 15% altered biotite, 30% kaolinite, ~3% goethite and low organic matter content,... while the saprolite is dominated by kaolinite (~60%) and quartz (~25%), and contains a small amount... Mo and Fe (r2 = 0.95, p=0.0005, Electronic Annex Figure 4), and between Mo and Ti (r2 = 0.97... p=0.03; and HA, r2 = 0.55, p=0.03, Electronic Annex Figure 4). Within the HA profile, Mo and % organic |  | Zdanowicz, Christian, Hall, Gwendy, Vaive, Judy, Amelin, Yuri, Percival, Jeanne, Girard, Isabelle, Biscaye, Pierre, Bory, Aloys (2006) Asian dustfall in the St. Elias Mountains, Yukon, Canada. Geochimica et Cosmochimica Acta, 70 (14) 3493-3507 doi:10.1016/j.gca.2006.05.005 | Journal (article/letter/editorial) | | Columbia University, Rte 9W, P.O. Box 1000, Palisades, NY 10964, USA c British Antarctic Survey, High...Visual Environments (IMPROVE) in the northwestern USA (Jaffe et al., 2003b). Measurements of the aerosol...Relative percentages of chlorite, illite and kaolinite + chlorite were estimated from the area of the...chlorite 14 Å (0 0 1), illite 10 Å (0 0 1) and kaolinite (0 0 1) + chlorite (0 0 2) 7 Å peaks as described...Yukon loess samples. Full results are given in annex EA-3. The measured 87 Sr/86Sr ratios were corrected |  | | Journal (article/letter/editorial) | | Livermore National Laboratory, P.O. Box 808, Livermore, CA 94550, USA b Dept. of Environ. Eng. and Earth...Sciences, Clemson University, Clemson, SC 29625, USA Received 19 November 2010; accepted in revised form...1 Cyclotron Rd., MS 90-1116, Berkeley, CA 94720, USA. Tel.: +1 510 495 8231; fax: +1 510 486 5686. E-mail...to a clay-rich sediment over time using 2- and 3-box multi-reaction models, which include fast (equilibrium)...and Cornell, 1991); for details see Electronic Annex. A XRD pattern confirmed goethite as the major phase |  | | Journal (article/letter/editorial) | | ⁎, Wayne D. Goodfellow b a b GNS Science, P.O. Box 30-368, Lower Hutt, New Zealand Mineral Resources...towards more Naand K-rich compositions (Electronic annex Table EA1, Fig. EA1). The trend to more Na- and...basalts and basaltic andesites (see Electronic Annex Table EA2). SEM analyses of fracture zone material...show little variation in mineralogy (Electronic Annex Fig. EA2). The dominant fracture minerals are illite...from fine-grained fibrous to platy and blocky. Kaolinite is less common and is present as platy and blocky |  | Behrens, Ricarda, Bouchez, Julien, Schuessler, Jan A., Dultz, Stefan, Hewawasam, Tilak, von Blanckenburg, Friedhelm (2015) Mineralogical transformations set slow weathering rates in low-porosity metamorphic bedrock on mountain slopes in a tropical climate. Chemical Geology, 411. 283-298 doi:10.1016/j.chemgeo.2015.07.008 | Journal (article/letter/editorial) | | from which secondary minerals (mainly gibbsite, kaolinite and goethite) form. As oxidation is the first weathering...electron microprobe analyses (Appendix A: Electronic Annex), and Fe-redox analyses. 2.2.1. Textural characterization...are smaller than the symbols. (XRD and FTIR), kaolinite can be identified as the major secondary clay mineral...clay-sized fraction. The broadening of the strong XRD kaolinite peak at 7.3 Å towards higher values (e.g., SL...600–650 800–820 Kaolinite, 2:1 clays, gibbsite Kaolinite, 2:1 clays, gibbsite, Kaolinite, gibbsite, (2:1 |  | | Journal (article/letter/editorial) | | a hand specimen microscope. See the Electronic Annex Table EA 1 for detailed information. A full list...color descriptions, is presented in the Electronic Annex (Table EA 1). Samples containing “FB” in the sample...both sites is also presented in the Electronic Annex (section EA 2). 3.2 Analytical Methodology 3.2.1...Reference Material LaB6 660b (see the Electronic Annex section EA 5 for further details). Two patterns...present include halite (NaCl), gypsum (CaSO4·2H2O), kaolinite [Al2Si2O5(OH)4], illite [(K,H3O)(Al,Mg,Fe)2(Si |
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