Results 61 to 70 of about 31,421 (268)

Geochemistry of Pyrite from the Jiaojia Gold Deposit, Jiaodong Peninsula, North China Craton: Implications for Source of Ore-Forming Fluids and Gold Precipitation

Applied Sciences
The Jiaojia gold deposit in the Jiaodong Peninsula, located in the northwestern part of the Jiaodong gold province in eastern China, has a gold reserve of over 300 t.
Yayi Fang, Yayun Liang, Rui Xia, Lei Shu, Bi He, Wenhao Xue, Chenxi Zhang, Haiyi Wang, Senmiao Xue   +8 more
doaj   +1 more source

Electrochemical study on Surface Oxidation of Natural Pyrite in Ferric Sulfate Solution

International Journal of Electrochemical Science, 2019
Surface oxidation of natural massive pyrite in 0.5 M sulfuric acid solutions with different ferric concentrations was investigated. The electrode of natural pyrite was made and its behavior was measured using cyclic voltammetry (CV), linear sweep ...
Guobao Chen, Hongying Yang
doaj   +1 more source

Geochemistry and Geochronology of Magmatic Rocks in Southwestern and Northeastern Cambodia: Implications for the Tectonic Evolution and Metallogenesis of the Loei Fold Belt

Geological Journal, EarlyView.
The composition of intrusive rocks suggests that the magma was likely generated in a subduction‐related setting. The arc crustal thickness in the Phnom Sro Ngam and Halo Prospects was probably < 40 km during emplacement. Zircon U–Pb age range indicates a correlation with Loei Fold Belt magmatic activity.
Sirisokha Seang, Khin Zaw, Kakda Kret, Ivan Belousov, Kotaro Yonezu, Koichiro Watanabe, Charles Makoundi   +6 more
wiley   +1 more source

Microbial oxidation of Fe21 and pyrite exposed to flux of micromolar H2O2 in acidic media [PDF]

, 2013
At an initial pH of 2, while abiotic oxidation of aqueous Fe21 was enhanced by a flux of H2O2 at micromolarconcentrations, bio-oxidation of aqueous Fe21 could be impeded due to oxidative stress/damage inAcidithiobacillus ferrooxidans caused by Fenton ...
Lin, C, Ma, Yingqun, Ma, Y, Lin, Chuxia
core   +1 more source

Deglaciation of the Burren glacio‐karst, western Ireland, during Termination 1: Implications for North Atlantic climate and karstification

Journal of Quaternary Science, EarlyView.
Abstract The Burren uplands in western Ireland form one of the most extensive and best‐preserved examples of glacio‐karst in Europe. Subsumed by the Irish ice sheet during the Late Pleistocene, granite erratic boulders and in situ silica veins in the limestone bedrock provide a rare opportunity to reconstruct the timing and rate of deglaciation ...
Gordon Bromley, Colin Bunce, Brenda Hall, Aaron Putnam, Frank McDermott   +4 more
wiley   +1 more source

Pyrite-type cobalt phosphosulphide bifunctional catalyst for aqueous and gel-based rechargeable zinc-air batteries

, 2020
Pyrite-type cobalt phosphosulphide bifunctional catalyst for aqueous and gel-based rechargeable zinc-air ...
S Sampath (13464078), Bratati Roy (13464075), KJ Shebin (15805202)   +2 more
core  

Anaerobic Corrosion Phenomena of Cast Iron and Copper in Artificial Groundwater at Elevated Temperature

Materials and Corrosion, EarlyView.
This study examines corrosion of copper and cast iron as candidate canister materials for high‐level radioactive waste disposal in contact with bentonite suspension. The influence of three electrolyte compositions on corrosion behavior under repository‐relevant conditions is assessed.
Louisa Panjiyar, Martin Ende, Christiane Stephan‐Scherb   +2 more
wiley   +1 more source

ESTIMATION OF SULPHUR IN PYRITES. [PDF]

Journal of the American Chemical Society, 1895
n ...
openaire   +1 more source

Effect of pH on Aqueous Se(IV) Reduction by Pyrite

, 2011
International audienceInteraction of aqueous Se(IV) with pyrite was investigated using persistently stirred batch reactors under O2-free (
Bruggeman, C, Yongqiang Yang, Chen, Fanrong, L. Charlet, C. Bruggeman, Wu, Shijun, Yang, Yongqiang, Mingliang Kang, Kang, ML, Shijun Wu, Wu, SJ, Charlet, Laurent, Yang, YQ, Kang, Mingliang, Fanrong Chen, Chen, FR, Bruggeman, C., Charlet, L   +17 more
core   +1 more source

Outer‐Sphere Tuning of Synthetic Iron–Sulfur Clusters Within Nanoscale Cage Frameworks

Small, EarlyView.
Noncovalent encapsulation of a synthetic iron–sulfur cluster within hydrophobic, naphthalenediimide (NDI)‐paneled cages is shown to lead to dramatic changes in the electronic structure and covalency of the Fe─S core. ABSTRACT As atomic‐scale archetypes for multi‐electron transfer, iron–sulfur clusters are compelling candidates for the design of redox ...
Rupal Baliyan, Shelby T. Davis, Jan‐Niklas Boyn, Gwendolyn A. Bailey   +3 more
wiley   +1 more source