Results 11 to 20 of about 9,068 (209)

Sedimentary Mercury Enrichments as a Tracer of Large Igneous Province Volcanism

open access: yesGeophysical Monograph Series, Page 247-262., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Lawrence M. E. Percival   +3 more
wiley  

+11 more sources

Effect and mechanism of organic depressant on the hydrophobicity of chalcopyrite and pyrite under weakly alkaline environment

open access: yesJournal of Materials Research and Technology, 2021
In a chalcopyrite and pyrite flotation system, the effect and mechanism of organic depressant sodium dimethyl dithiocarbamate on the hydrophobicity of chalcopyrite and pyrite were studied.
Xu Bai, Jian Liu, Shuming Wen, Yilin Lin
doaj   +1 more source

Origin of pyrite nodules at the top of the nantuo diamictites, Southern China

open access: yesScientific Reports, 2021
Pyrite nodules up to 20 cm in diameter are found at the top of the Marinoan (~ 635 Ma) Nantuo glacial diamictite as well as in the cap dolostones and shale/siltstones in the lower Doushantuo Formation in eastern Guizhou, southern China. Field occurrences,
Changjie Liu, Ying Lin
doaj   +1 more source

Pore Characterization of Pyrite in the Longmaxi Formation Shale in the Upper Yangtze Area of China

open access: yesFrontiers in Earth Science, 2022
Pyrite is widely distributed in the Longmaxi marine shale in the Upper Yangtze area of China. Pyrite, one of the important components of shale, has an important influence on the enrichment of shale gas.
Xin Chen   +12 more
doaj   +1 more source

COARSE-CRYSTALLINE PYRITE OF CENTRAL TIMAN [PDF]

open access: yesМинералогия, 2021
The results of mineralogical, geochemical, X-ray, isotopic and spectroscopic studies of coarse-crystalline pyrite (Kyvvozh Formation, Dimtem’el Creek, Central Timan) are presented. Pyrite is characterized by cubic habit and zonal Co distribution.
R.I. Shaybekov   +5 more
doaj   +1 more source

Fabrication of Iron Pyrite Thin Films and Photovoltaic Devices by Sulfurization in Electrodeposition Method

open access: yesNanomaterials, 2021
Iron pyrite is a cheap, stable, non-toxic, and earth-abundant material that has great potential in the field of photovoltaics. Electrochemical deposition is a low-cost method, which is also suitable for large-scale preparation of iron pyrite solar cells.
Zheng Lu   +7 more
doaj   +1 more source

The effect of quartz on the flotation of pyrite depressed by serpentine

open access: yesJournal of Materials Research and Technology, 2015
The effect of quartz particles on the flotation of pyrite depressed by serpentine has been investigated through flotation tests, adsorption tests, zeta potential measurements and DLVO calculation.
Bo Feng, Yiping Lu, Xianping Luo
doaj   +1 more source

Experimental Study on the Oxidation Reaction of Coal-Pyrite and Mineral-Pyrite with the Participation of Fe(III) and Bacteria under Acidic Conditions

open access: yesEnergies, 2023
As one of the crucial factors contributing to coal spontaneous combustion, the oxidation of pyrite is a complex process involving multiple reactions, particularly in the presence of oxidants (Fe3+ and O2) and bacteria. However, experimental results based
Mengya Ma   +3 more
doaj   +1 more source

Chalcopyrite Dissolution at 650 mV and 750 mV in the Presence of Pyrite

open access: yesMetals, 2015
The dissolution of chalcopyrite in association with pyrite in mine waste results in the severe environmental issue of acid and metalliferous drainage (AMD).
Yubiao Li   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy