The isotope effect for Mg-Fe interdiffusion in olivine and its dependence on crystal orientation, composition and temperature

Publication date: Available online 30 June 2018Source:Geochimica et Cosmochimica Acta Author(s): Corliss K. Sio, Mathieu Roskosz, Nicolas Dauphas, Neil R. Bennett, Timothy Mock, Anat ShaharIsotopic fractionation associated with diffusion in crystals is the most reliable means of understanding the origin of mineral zoning in igneous and...

Jul 2018

GEOCHEMISTRY ARTICLES - May 2018

Publication date: August 2018Source:Organic Geochemistry, Volume 122

Jun 2018

Breakup reactions of light and medium mass neutron drip line nuclei

Publication date: Available online 28 June 2018Source:Progress in Particle and Nuclear Physics Author(s): R. Chatterjee, R. ShyamThe formal theories of breakup reactions are reviewed. The direct breakup mechanism that is formulated within the framework of the post-form distorted-wave Born approximation, is discussed in detail. In this theory,...

Jun 2018

Searching for enhanced iron fortification of formula milk via nanoparticles and Isotope Pattern Deconvolution

Publication date: Available online 28 June 2018Source:Spectrochimica Acta Part B: Atomic Spectroscopy Author(s): Sonia Fernández-Menéndez, Rafaella Regina Alves Peixoto, Belén Fernández-Colomer, Marta Costa Romero, Alfredo Sanz-Medel, María Luisa Fernández-SánchezNanoparticles (NPs) of 57Fe(III) oxo-hydroxide have been investigated for...

Jun 2018

Insights into sulfur cycling at subduction zones from in-situ isotopic analysis of sulfides in high-pressure serpentinites and ‘hybrid’ samples from Alpine Corsica

Publication date: Available online 20 June 2018Source:Chemical Geology Author(s): R.J. Crossley, K.A. Evans, H. Jeon, M.R. KilburnDevolatilisation of serpentinites at depth in subduction zones contributes significant quantities of sulfur and other redox sensitive elements to the sub-arc mantle. However, the fate of sulfur in subducted serpentinites...

Jun 2018

Dissolved and particulate trace elements in late summer Arctic melt ponds

Publication date: Available online 19 June 2018Source:Marine Chemistry Author(s): Chris M. Marsay, Ana Aguilar-Islas, Jessica N. Fitzsimmons, Mariko Hatta, Laramie T. Jensen, Seth G. John, David Kadko, William M. Landing, Nathan T. Lanning, Peter L. Morton, Angelica Pasqualini, Sara Rauschenberg, Robert M. Sherrell, Alan...

Jun 2018

Constraining the origin of the Mesozoic Xishimen Fe deposit in the Taihang Mountain Range, North China using geochemistry of magnetite

Publication date: Available online 2 June 2018Source:Geoscience Frontiers Author(s): Shang-Guo Su, Jun-Yi Jiang, Jian-Guang Hou, Ying Cui, Lu-Lu Liu, Bo ZhangThe Xishimen (XSM) iron (Fe) deposit located in the Taihang Mountain Range in North China is one of the largest known Mesozoic skarn Fe deposits in China. Recent research suggests...

Jun 2018

Fractionation of Fe and Cu isotopes in acid mine tailings: Modification and application of a sequential extraction method

Publication date: Available online 25 May 2018Source:Chemical Geology Author(s): Y. Roebbert, K. Rabe, M. Lazarov, S. Schuth, A. Schippers, B. Dold, S. WeyerSulfidic mine tailings have a high potential for contamination of the environment by triggering acid mine drainage. Hence, it is crucial to understand metal mobilization processes...

May 2018

High-precision analysis of potassium isotopes by HR-MC-ICPMS

Publication date: Available online 24 May 2018Source:Chemical Geology Author(s): Yan Hu, Xin-Yang Chen, Ying-Kui Xu, Fang-Zhen TengThis study presents a method for high-precision stable potassium (K) isotope analysis using High-Resolution Multi-Collector Inductively Coupled Plasma Mass Spectrometry (HR-MC-ICPMS). Dry and cold plasma is used...

May 2018

Iron NRT- and arc-displacement cross sections and their covariances

Publication date: Available online 24 May 2018Source:Nuclear Materials and Energy Author(s): S.P. Simakov, U. Fischer, A.J. Koning, A.Yu. Konobeyev, D.A. RochmanDisplacement damage cross sections have been calculated for natural iron and its constituent individual isotopes based on the latest versions of the evaluated neutron data libraries...

May 2018