Marcasite at the Permian‐Triassic Transition
Geophysical Monograph Series, Page 377-399., 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.
Elena Lounejeva +7 more
wiley +1 more source
International Journal of Chemical Engineering, 2023 In this study, we performed a comparative analysis of the combustion behavior of pyrite, pyrrhotite, and pyrite-pyrrhotite mixture (mixed mineral) powders in an air atmosphere.
Changshun Tian +3 more
doaj +1 more source
Concrete damage due to oxidation of pyrrhotite-bearing aggregate: a review
RILEM Technical Letters, 2021 Oxidation of pyrrhotite-bearing aggregates is one of the major causes of concrete damage in numerous buildings in Trois-Rivières in Canada and Connecticut in the USA.
Josée Duchesne +2 more
doaj +1 more source
A flotation-based approach to the quantification of pyrrhotite in concrete aggregates
Results in Engineering, 2021 Pyrrhotite-bearing aggregates are a major cause of internal sulphate attack (ISA) in concrete. The concentration of pyrrhotite is usually too low to permit direct accurate quantification.
R.A. Kleiv
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Research Progress and Development Trend of Pyrrhotite Beneficiation
Kuangchan zonghe liyong, 2022 This article summarizes the research progress of pyrrhotite beneficiation, and believes that pyrrhotite will remain a research hotspot in flotation and separation from polymetallic sulfide ore.
Xiaopu Zhang, Guanghua Ai, Huashan Yan
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The Thermal Decomposition Behavior of Pyrite-Pyrrhotite Mixtures in Nitrogen Atmosphere
Journal of Chemistry, 2022 To assess the thermal transformation process of common sulfide minerals in a nitrogen atmosphere, thermogravimetric analysis, X-ray diffraction, scanning electron microscopy, and thermogravimetric mass spectrometry are employed to define the influence of
Changshun Tian +4 more
doaj +1 more source
Conditions of metamorphism of the Outokumpu Cu - Co - Zn deposit from sphalerite geobarometry [PDF]
Bulletin of the Geological Society of Finland, 1998 Electron microprobe analysis was used to determine Zn and Fe in homogeneous samples of sphalerite in mutual contact with pyrrhotite and pyrite from the disseminated ore layer stratigraphically high in the Keretti orebody at Outokumpu, Finland.
J.M. Warrender, D.R. Bowes, C.M. Farrow
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Study on the Structure and Catalytic Performance of Catalyst Fe7S8 for Direct Coal Liquefaction
Taiyuan Ligong Daxue xuebao, 2021 In order to study the relationship between the direct coal liquefaction performance and the structure of Fe7S8 catalysts prepared by different methods, Fe7S8 catalysts with different crystal structures were prepared by calcination and solvothermal method
Xueming WANG, Xiaohong LI, Ruoqing WANG
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Pyrrhotite-troilite intergrowth from Luikonlahti copper deposit, eastern Finland [PDF]
Bulletin of the Geological Society of Finland, 1970 A homoaxial intergrowth of troilite with iron-deficient pyrrhotite, Fe0.921S, is described. X-ray single crystal study of the pyrrhotite component points to a superstructure with c = 11 C and apparently to an orthorhombic symmetry. The intergrowth occurs
A. Vorma
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GEOCHEMICAL FEATURES OF SULFIDES OF THE AKTASH MAGNETITE-POLYMETALLIC DEPOSIT, WESTERN KARAMAZAR, TAJIKISTAN (LA-ICP-MS DATA) [PDF]
Минералогия, 2023 The distribution of trace elements in sulfides from various ores of the Aktash magnetitepolymetallic deposit (Tajikistan) is studied using LA-ICP-MS method. Sulfides partly replace banded magnetite ores.
U.A. Yatimov +2 more
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