Results 11 to 20 of about 93,816 (310)

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

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

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

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

A black shale protolith for gold-tellurium mineralisation in the Dalradian Supergroup (Neoproterozoic) of Britain and Ireland [PDF]

open access: yes, 2017
The Dalradian Supergroup of Britain and Ireland is mineralised by gold-tellurium vein deposits. The host succession includes carbonaceous, pyritic shales (pelites) which were a source of trace elements, including gold and tellurium.
Armstrong, J.   +5 more
core   +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

Pyrite contact twins

open access: yesActa Crystallographica Section B Structural Science, Crystal Engineering and Materials, 2023
Two examples of contact twins in pyrite from Peru are described. The first one, from Pasto Bueno ore deposit, shows the pyritohedron {120} as principal form, accompanied by the {111} octahedron and {100} cube as secondary forms, giving a lenticular aspect.
Yves Moëlo   +2 more
openaire   +3 more sources

Utilization of flotation in copper extraction from polymetallic ore [PDF]

open access: yes, 2020
The aim of this study was to examineflotation of utility metals from poor polymetallic ores and verify the potential for profitable yields in connection withpotentially economic deposits of non-ferrous metals.The paper describes results in ...
Janáková, Iva   +2 more
core   +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

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

Home - About - Disclaimer - Privacy