Tracing low-temperature aqueous metal migration in mineralized watersheds with Cu isotope fractionation

2014 ◽  
Vol 51 ◽  
pp. 109-115 ◽  
Author(s):  
R. Mathur ◽  
L.A. Munk ◽  
B. Townley ◽  
K.Y. Gou ◽  
N. Gómez Miguélez ◽  
...  
Keyword(s):  
Low Temperature ◽  
Isotope Fractionation ◽  
Metal Migration ◽  
Cu Isotope

Equilibrium Cu isotope fractionation in copper minerals: a first-principles study

2021 ◽  
Vol 564 ◽  
pp. 120060
Author(s):  
Shanqi Liu ◽  
Yongbing Li ◽  
Jie Liu ◽  
Zhiming Yang ◽  
Jianming Liu ◽  
...  
Keyword(s):  
First Principles ◽  
Isotope Fractionation ◽  
First Principles Study ◽  
Cu Isotope

scholarly journals New isotope constraints on the Mg oceanic budget point to cryptic modern dolomite formation

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Netta Shalev ◽  
Tomaso R. R. Bontognali ◽  
C. Geoffrey Wheat ◽  
Derek Vance
Keyword(s):  
Low Temperature ◽  
Carbon Cycle ◽  
Oceanic Crust ◽  
Isotope Fractionation ◽  
Hydrothermal Fluids ◽  
Carbonate Precipitation ◽  
Magnesium Isotopes ◽  
Conventional View ◽  
The Past ◽  
Dolomite Formation

AbstractThe oceanic magnesium budget is important to our understanding of Earth’s carbon cycle, because similar processes control both (e.g., weathering, volcanism, and carbonate precipitation). However, dolomite sedimentation and low-temperature hydrothermal circulation remain enigmatic oceanic Mg sinks. In recent years, magnesium isotopes (δ26Mg) have provided new constraints on the Mg cycle, but the lack of data for the low-temperature hydrothermal isotope fractionation has hindered this approach. Here we present new δ26Mg data for low-temperature hydrothermal fluids, demonstrating preferential 26Mg incorporation into the oceanic crust, on average by εsolid-fluid ≈ 1.6‰. These new data, along with the constant seawater δ26Mg over the past ~20 Myr, require a significant dolomitic sink (estimated to be 1.5–2.9 Tmol yr−1; 40–60% of the oceanic Mg outputs). This estimate argues strongly against the conventional view that dolomite formation has been negligible in the Neogene and points to the existence of significant hidden dolomite formation.

Cu isotope fractionation response to oxidative stress in a hepatic cell line studied using multi-collector ICP-mass spectrometry

2018 ◽  
Vol 410 (9) ◽  
pp. 2385-2394 ◽  
Author(s):  
María R. Flórez ◽  
Marta Costas-Rodríguez ◽  
Charlotte Grootaert ◽  
John Van Camp ◽  
Frank Vanhaecke
Keyword(s):  
Oxidative Stress ◽  
Mass Spectrometry ◽  
Cell Line ◽  
Isotope Fractionation ◽  
Hepatic Cell ◽  
Hepatic Cell Line ◽  
Icp Mass Spectrometry ◽  
Cu Isotope

Exploration potential of Cu isotope fractionation in porphyry copper deposits

2009 ◽  
Vol 102 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Ryan Mathur ◽  
Spencer Titley ◽  
Fernando Barra ◽  
Susan Brantley ◽  
Marc Wilson ◽  
...  
Keyword(s):  
Isotope Fractionation ◽  
Porphyry Copper ◽  
Porphyry Copper Deposits ◽  
Copper Deposits ◽  
Cu Isotope

Stable Cu isotope fractionation in soils during oxic weathering and podzolization

2011 ◽  
Vol 75 (11) ◽  
pp. 3119-3134 ◽  
Author(s):  
Moritz Bigalke ◽  
Stefan Weyer ◽  
Wolfgang Wilcke
Keyword(s):  
Isotope Fractionation ◽  
Cu Isotope

Cu isotope fractionation during bornite dissolution: An in situ X-ray diffraction analysis

2011 ◽  
Vol 42 (1) ◽  
pp. 62-70 ◽  
Author(s):  
Andrew J. Wall ◽  
Ryan Mathur ◽  
Jeffrey E. Post ◽  
Peter J. Heaney
Keyword(s):  
Diffraction Analysis ◽  
Isotope Fractionation ◽  
X Ray Diffraction ◽  
X Ray ◽  
Cu Isotope

Fluid speciation controls of low temperature copper isotope fractionation applied to the Kupferschiefer and Timna ore deposits

2009 ◽  
Vol 262 (3-4) ◽  
pp. 147-158 ◽  
Author(s):  
Dan Asael ◽  
Alan Matthews ◽  
Slawomir Oszczepalski ◽  
Miryam Bar-Matthews ◽  
Ludwik Halicz
Keyword(s):  
Low Temperature ◽  
Isotope Fractionation ◽  
Ore Deposits ◽  
Copper Isotope

Epitaxial growth of low temperature GaN using metal migration enhanced epitaxy for high-quality InGaN/GaN heterojunctions

2018 ◽  
Vol 120 ◽  
pp. 781-787 ◽  
Author(s):  
Hyeonseok Woo ◽  
Jongmin Kim ◽  
Sangeun Cho ◽  
Yongcheol Jo ◽  
Cheong Hyun Roh ◽  
...  
Keyword(s):  
Low Temperature ◽  
Epitaxial Growth ◽  
High Quality ◽  
Migration Enhanced Epitaxy ◽  
Metal Migration
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