Results 21 to 30 of about 1,115 (180)

The Low‐Temperature Besnus Magnetic Transition: Signals Due to Monoclinic and Hexagonal Pyrrhotite

Geochemistry, Geophysics, Geosystems, 2018
The low‐temperature magnetic properties of the many pyrrhotite varieties have not been studied extensively. Monoclinic pyrrhotite (Fe7S8) goes through the Besnus transition at ~30–34 K, which is used widely to diagnose its presence in bulk samples. Other
Chorng‐Shern Horng, Andrew P. Roberts
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Iron Oxalate Humboldtine Crystallization by Fungus Aspergillus niger

Crystals, 2021
Microfungi were able to alternate solid substrate in various environments and play a noticeable role in the formation of insoluble calcium oxalate crystals in subaerial biofilms on rock surfaces.
Marina S. Zelenskaya, Alina R. Izatulina, Olga V. Frank-Kamenetskaya, Dmitry Y. Vlasov   +3 more
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Bioleaching of Pyrrhotite with Bacterial Adaptation and Biological Oxidation for Iron Recovery

Metals, 2021
The microbially mediated recovery of valuable metals contained in mining waste presents an economical alternative to conventional hydrometallurgical processes.
Bong-Ju Kim, Yong-Kwon Koh, Jang-Soon Kwon   +2 more
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Pyrrhotite as a tracer for denudation of the Taiwan orogen

Geochemistry, Geophysics, Geosystems, 2012
The use of pyrrhotite as an index mineral to delineate metamorphic isograds has long been proposed. However, details of the occurrence of pyrrhotite in different metamorphic facies and its implications have rarely been explored.
Chorng‐Shern Horng, Chih‐An Huh, Kuo‐Hang Chen, Chun‐Hung Lin, Kai‐Shuan Shea, Kan‐Hsi Hsiung   +5 more
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Trace-elements in sulfides of the Dergamysh cobalt-bearing massive sulfide deposit, the Southern Urals: Mode of occurrence and matter sources

Литосфера, 2020
Subject of study. The article presents the results of study of trace elements (TEs) in sulfides of the main ore body (borehole 1T) and the northwestern ore body (borehole 200) of the Dergamysh cobalt-bearing massive sulfide deposit hosted in ...
I. Yu. Melekestseva, V. V. Maslennikov, S. P. Maslennikova   +2 more
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Metagenomic Features Characterized with Microbial Iron Oxidoreduction and Mineral Interaction in Southwest Indian Ridge

Microbiology Spectrum, 2022
The Southwest Indian Ridge (SWIR) is one of the typical representatives of deep-sea ultraslow-spreading ridges, and has increasingly become a hot spot of studying subsurface geological activities and deep-sea mining management. However, the understanding
Ying-Wen Zhong, Peng Zhou, Hong Cheng, Ya-Dong Zhou, Jie Pan, Lin Xu, Meng Li, Chun-Hui Tao, Yue-Hong Wu, Xue-Wei Xu   +9 more
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Self‐Reversed Magnetization in Sediments Caused by Greigite Alteration

Geophysical Research Letters, 2023
Multipolarity remanence in greigite‐bearing sediments has long been recognized, but the cause of this anomalous remanence behavior is not well understood.
Liao Chang, Zhaowen Pei, Pengfei Xue, Shishun Wang, Zhaoping Wang, Wout Krijgsman, Mark J. Dekkers   +6 more
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Mineralogical Characteristics and Beneficiation Experimental Study on Polytype Pyrrhotite in Kafang Deposit, Yunnan Province

Kuangchan zonghe liyong
With the increase of pyrrhotite content in Kafang copper-tungsten deposit, how to reduce the effects of pyrrhotite on the beneficiation process of copper and tungsten has become a difficult problem.
Rong ZHAO, Baoxu SONG, Jiuran PU, Jie WU, Mingbo CHEN, Xiaoyan SUN   +5 more
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THE ESTIMATION OF PYRRHOTITE IN PYRITES ORES. [PDF]

Journal of the American Chemical Society, 1896
n ...
openaire   +1 more source

Enhanced Visualization and Interpretation of XMCD‐PEEM Data Using SOM‐RPM Machine Learning

Advanced Materials Interfaces, 2023
Photoemission electron microscopy (PEEM) is a powerful technique for surface characterization that provides detailed information on the chemical and structural properties of materials at the nanoscale.
See Yoong Wong, Sarah L. Harmer, Wil Gardner, Alex K. Schenk, Davide Ballabio, Paul J. Pigram   +5 more
doaj   +1 more source