Academic literature on the topic 'Copper isotope fractionation'
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Journal articles on the topic "Copper isotope fractionation"
Navarrete, Jesica U., Marian Viveros, Joanne T. Ellzey, and David M. Borrok. "Copper isotope fractionation by desert shrubs." Applied Geochemistry 26 (June 2011): S319—S321. http://dx.doi.org/10.1016/j.apgeochem.2011.04.002.
Full textBalter, Vincent, Andre Nogueira da Costa, Victor Paky Bondanese, Klervia Jaouen, Aline Lamboux, Suleeporn Sangrajrang, Nicolas Vincent, et al. "Natural variations of copper and sulfur stable isotopes in blood of hepatocellular carcinoma patients." Proceedings of the National Academy of Sciences 112, no. 4 (January 12, 2015): 982–85. http://dx.doi.org/10.1073/pnas.1415151112.
Full textKimball, B. E., R. Mathur, A. C. Dohnalkova, A. J. Wall, R. L. Runkel, and S. L. Brantley. "Copper isotope fractionation in acid mine drainage." Geochimica et Cosmochimica Acta 73, no. 5 (March 2009): 1247–63. http://dx.doi.org/10.1016/j.gca.2008.11.035.
Full textAsael, Dan, Alan Matthews, Miryam Bar-Matthews, and Ludwik Halicz. "Copper isotope fractionation in sedimentary copper mineralization (Timna Valley, Israel)." Chemical Geology 243, no. 3-4 (September 2007): 238–54. http://dx.doi.org/10.1016/j.chemgeo.2007.06.007.
Full textEllwood, Michael J., Robert Strzepek, Xiaoyu Chen, Thomas W. Trull, and Philip W. Boyd. "Some observations on the biogeochemical cycling of zinc in the Australian sector of the Southern Ocean: a dedication to Keith Hunter." Marine and Freshwater Research 71, no. 3 (2020): 355. http://dx.doi.org/10.1071/mf19200.
Full textMiller, Kerri A., Fernando A. Vicentini, Simon A. Hirota, Keith A. Sharkey, and Michael E. Wieser. "Antibiotic treatment affects the expression levels of copper transporters and the isotopic composition of copper in the colon of mice." Proceedings of the National Academy of Sciences 116, no. 13 (March 8, 2019): 5955–60. http://dx.doi.org/10.1073/pnas.1814047116.
Full textBigalke, Moritz, Stefan Weyer, and Wolfgang Wilcke. "Copper Isotope Fractionation during Complexation with Insolubilized Humic Acid." Environmental Science & Technology 44, no. 14 (July 15, 2010): 5496–502. http://dx.doi.org/10.1021/es1017653.
Full textCoutaud, Margot, Merlin Méheut, Jérôme Viers, Jean-Luc Rols, and Oleg S. Pokrovsky. "Copper isotope fractionation during excretion from a phototrophic biofilm." Chemical Geology 513 (May 2019): 88–100. http://dx.doi.org/10.1016/j.chemgeo.2019.02.031.
Full textHe, Lianhua, Jihua Liu, Hui Zhang, Jingjing Gao, Aimei Zhu, and Ying Zhang. "Copper and zinc isotope variations in ferromanganese crusts and their isotopic fractionation mechanism." Acta Oceanologica Sinica 40, no. 9 (September 2021): 43–52. http://dx.doi.org/10.1007/s13131-021-1775-5.
Full textWall, Andrew J., Peter J. Heaney, Ryan Mathur, Jeffrey E. Post, Jonathan C. Hanson, and Peter J. Eng. "A flow-through reaction cell that couples time-resolved X-ray diffraction with stable isotope analysis." Journal of Applied Crystallography 44, no. 2 (February 2, 2011): 429–32. http://dx.doi.org/10.1107/s0021889811000525.
Full textDissertations / Theses on the topic "Copper isotope fractionation"
Babcsanyi, Izabella. "Copper transport and isotope fractionation in an agrosystem." Thesis, Strasbourg, 2015. http://www.theses.fr/2015STRAH006/document.
Full textSince the end of the 19th century, the use of copper (Cu)-based fungicides has resulted in increased Cu concentrations in vineyard soils, but also in downstream aquatic ecosystems. The aim of the thesis was to better understand the fate of this Cu in an agrosystem based on assessing Cu isotope fractionation (65Cu/63Cu). The results have shown that the surface vineyard soils have become enriched in Cu from 9 to 28 times compared to the background level during 4 to 5 decades of vine-growing and that clay minerals were the major Cu sorbing phases in the soils. During rainfall, runoff mobilized ~1% of the applied Cu during the, mainly associated with clays. The stormwater wetland collecting the runoff retained in average 68% of the dissolved and more than 92% of particulate Cu. Cu isotope ratios measured in the wetland suggested dissolved Cu sorption to the sediments and in situ reduction of Cu(II) due to biogeochemical processes
Young, Steven E. "Crystal chemical control on intra-structural copper isotope fractionation in natural copper-iron-sulfur minerals." Diss., The University of Arizona, 2003. http://hdl.handle.net/10150/289914.
Full textMaynard, Annastacia Lin. "Copper isotope compositions of Cenozoic mafic-intermediate rocks of the Northern Great Basin and Snake River plain (USA)." Thesis, Kansas State University, 2016. http://hdl.handle.net/2097/32881.
Full textDepartment of Geology
Matthew E. Brueseke
Mid-Miocene epithermal Au-Ag ores of the northern Great Basin USA are related to magmatism associated with the inception of the Yellowstone hotspot. The geochemical chemical connection between these ores and spatially and temporally related volcanism is not well understood, but has been suggested (Kamenov, 2007; Saunders et al., 2015). These Cu- and Pb- isotope studies show that the ore and associated gangue minerals have different sources of Pb, which supports evidence that the metal(loids) originate from a deep magmatic source (Saunders et al., 2008). Cu isotopes as a tool for exploring linkages between ore deposits and related volcanic rocks is a new and evolving field. A suite of mid-Miocene Northern Great Basin (NGB) and Snake River Plain (SRP) volcanic rocks was analyzed by aquaregia leach for their δ⁶⁵Cu compositions. These samples have all been previously characterized and include basalts, trachybasalt, basaltic andesites, and basaltic trachyandesites that are representative of regional flood basalt magmatism and younger basalt eruptions in central Idaho. Included are rocks from the Santa Rosa-Calico volcanic field, NV (e.g., Buckskin-National district); Owyhee Mountains, ID (Silver City District); Midas, NV region, near Jarbidge, NV; and a locality proximal to Steens Mountain, OR. Also included are two Pleistocene basalts from the central Snake River plain unequivocally related to the Yellowstone hotspot volcanism (McKinney Basalt and Basalt of Flat Top Butte), and one Eocene basalt from the Owyhee Mountains that is related to pre-hotspot arc volcanism. International rock standards ranging from ultramafic to intermediate were also analyzed in this study for comparison. Our new δ⁶⁵Cu data greatly expands the range of known Cu isotopic compositions for basalts, with values ranging from -0.84‰ to +2.61‰. These values overlap with the δ⁶⁵Cu of regional ores, further suggesting a link between the source(s) of the ores and the NGB rocks. The range of δ⁶⁵Cu values also overlaps with mantle rock values, suggesting that the Cu isotopic composition may be a signature derived from the mantle source. Fractionation mechanisms that cause such a broad range in Cu isotopes are still unclear but liquid-vapor transitions and mantle metasomatism are being explored. Furthermore, δ⁶⁵Cu values of international rock standards reported in this study did not agree with previously reported data (Archer and Vance, 2004; Bigalke et al., 2010; Moeller et al., 2012; Liu et al., 2014, 2015) suggesting that aquaregia leach may not be a preferable technique when analyzing volcanic rocks.
Rodríguez, Nathalie Pérez. "Biotic and abiotic isotope fractionation of copper and iron : From the lab to the field scale." Doctoral thesis, Luleå tekniska universitet, Geovetenskap och miljöteknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-26743.
Full textGodkänd; 2013; 20131028 (natper); Dissertation to be held in public in room E632 on Tuesday 17th of December at 10:00 am. External examiner: Dr. Dominik Weiss, Department for Earth Sciences and Engineering, Imperial College London. Chairman: Professor Björn Öhlander, Division of Geosciences and Environmental Engineering, Luleå University of Technology. --- Tillkännagivande disputation 2013-11-22 Nedanstående person kommer att disputera för avläggande av teknologie doktorsexamen. Namn: Nathalie Pérez Rodríguez Ämne: Tillämpad geologi/Applied Geology Avhandling: Biotic and Abiotic Isotope Fractionation of Copper and Iron. From the Lab to the Field Scale Opponent: Dr Dominik Weiss, Reader, Department of Earth Science & Engineering, Imperial College of London, UK Ordförande: Professor Björn Öhlander, Institutionen för samhällsbyggnad och naturresurser, Luleå tekniska universitet Tid: Tisdag den 17 december 2013, kl 10.00 Plats: E632, Luleå tekniska universitet
Röbbert, Yvonne [Verfasser]. "Mobilization and isotope fractionation of uranium, copper and iron in the environment - implications for (bio)remediation of contaminated sites and mine tailings / Yvonne Röbbert." Hannover : Gottfried Wilhelm Leibniz Universität, 2021. http://d-nb.info/1238222722/34.
Full textLowczak, C. R. "Copper isotope method development for determining the source of mineralised provinces." Thesis, 2019. https://hdl.handle.net/2440/136974.
Full textMany isotope proxies have been applied to study the prosperous iron oxide copper gold (IOCG) province in the eastern Gawler Craton (E.G.C) and Au mineralised region of the cental Gawler Craton (C.G.C), in Southern Australia. Yet, copper isotope proxies- an indicator for low temperature fluid flow and sulfide mineralisation- have yet to be applied to the region. In this study, purification techniques using automatic column chromatography were demonstrated during separation of Cu from matrix elements. Cu isotopes – 65Cu & 63Cu – were used to understand the extent of mantle input and mantle metasomatism, potentially responsible for the Cu in IOCG mineralisation. Eleven samples were gathered. Three mafic enclaves and four intrusives from the Central Gawler Gold Province and four intrusives from the eastern Gawler IOCG province. Separation using automatic column chromatography proved challenging, with matrix elements abundant throughout the purified fractions (Co, Ti, Fe, Mg, Na), due to poor separation. Ti proved to a major interference during isotopic analysis using a Multicollector-ICP-MS, positively offsetting values. E.C.G samples showed the most positively fractionated δ65Cu values (+0.69 ± 0.024‰ to +1.422 ± 0.077‰). Enclaves from the C.G.C showed the most negatively fractionated δ65Cu values (-0.053 ± 0.023‰ to -0.897 ± 0.006‰), while intrusives from this region showed more positive δ65Cu values (+0.084±0.23‰ to +0.397±0.011‰). All samples showed a lack of hydrothermal alteration. Magmatic sulphide-containing E.G.C samples had the most positive δ65Cu values; which cannot be explained by current understanding of Cu isotope fractionation during sulfide saturation. This trend may instead be attributed to a heterogeneous sub-continental lithospheric mantle (SCLM) source. In contrast the negative δ65Cu values of mafic enclaves is possibly caused by assimilation of S-type granitic crust and/or possibly due to a heterogeneous SCLM source.
Thesis (B.Sc.(Hons)) -- University of Adelaide, School of Physical Sciences, 2019
Ryan, Brooke Marie. "The isotopic discrimination of copper in soil-plant systems: examining sources, uptake and translocation pathways." Thesis, 2014. http://hdl.handle.net/2440/104748.
Full textThesis (Ph.D.) (Research by Publication) -- University of Adelaide, School of Agriculture, Food and Wine, 2014.
Book chapters on the topic "Copper isotope fractionation"
Mathur, Ryan, Spencer Titley, Fernando Barra, Susan Brantley, Marc Wilson, Allison Phillips, Francisco Munizaga, Victor Makseav, Jeff Vervoort, and Garret Hart. "Copper Isotope Fractionation Used to Identify Supergene Processes." In Supergene Environments, Processes, and Products. Society of Economic Geologists, 2009. http://dx.doi.org/10.5382/sp.14.04.
Full textWang, Rui, Chen-Hao Luo, Wen-jie Xia, Wen-yan He, Biao Liu, Ming-Liang Huang, Zeng-qian Hou, and Di-cheng Zhu. "Role of Alkaline Magmatism in Formation of Porphyry Deposits in Nonarc Settings: Gangdese and Sanjiang Metallogenic Belts." In Tectonomagmatic Influences on Metallogeny and Hydrothermal Ore Deposits: A Tribute to Jeremy P. Richards (Volume II), 205–29. Society of Economic Geologists, 2021. http://dx.doi.org/10.5382/sp.24.12.
Full textConference papers on the topic "Copper isotope fractionation"
Ni, Peng, Anat Shahar, and Youxue Zhang. "Copper Isotope Fractionation by Diffusion in Basaltic Melts." In Goldschmidt2021. France: European Association of Geochemistry, 2021. http://dx.doi.org/10.7185/gold2021.4820.
Full textFreymuth, Heye, Frances E. Jenner, and Helen Williams. "Copper Isotope Fractionation at the Magnetite Crisis in the Manus Backarc Basin." In Goldschmidt2020. Geochemical Society, 2020. http://dx.doi.org/10.46427/gold2020.750.
Full textZhang, Yang, and Weiqiang Li. "Cu isotope fractionation during the replacement of pyrite by copper-bearing sulfides." In Goldschmidt2022. France: European Association of Geochemistry, 2022. http://dx.doi.org/10.46427/gold2022.12830.
Full textMcGee, Lucy E., Christopher Lowczak, Juraj Farkas, Justin Payne, Claire Wade, and Anthony Reid. "Copper Isotope Fractionation in Volatile-Fluxed Enclaves: Modern Analogues for the Genesis of Ancient Ore Deposits." In Goldschmidt2020. Geochemical Society, 2020. http://dx.doi.org/10.46427/gold2020.1759.
Full textHublet, Geneviève, Vinciane Debaille, and Pierre-François Laterre. "Copper and Zinc isotopic fractionation related to systemic inflammation following SARS-Cov-2 infection." In Goldschmidt2022. France: European Association of Geochemistry, 2022. http://dx.doi.org/10.46427/gold2022.11082.
Full textHublet, Geneviève, Vinciane Debaille, Nadine Mattielli, and Laurence Galanti. "Copper and Zinc isotopic fractionation induced by major infections: The SARS-Cov-2 case study." In Goldschmidt2021. France: European Association of Geochemistry, 2021. http://dx.doi.org/10.7185/gold2021.5315.
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