Zobrazeno 1 - 10
of 231
pro vyhledávání: '"J. Majzlan"'
Publikováno v:
European Journal of Mineralogy, Vol 36, Pp 31-54 (2024)
In this work, we investigated the M3(AsO4)2⋅ 8H2O end members annabergite (M is Ni), erythrite (M is Co), and hörnesite (M is Mg) and their solid solutions. Acid-solution calorimetry and relaxation calorimetry were used to determine the solubility
Externí odkaz:
https://doaj.org/article/5dea638f48dd4c2e91f3fcfb3ecf1ef7
Publikováno v:
European Journal of Mineralogy, Vol 35, Pp 737-754 (2023)
Enargite (Cu3AsS4) and tennantite (Cu12As4S13) are typical As-bearing sulfides in intermediate- and high-sulfidation epithermal deposits. Trace and major element variations in enargite and tennantite and their substitution mechanisms are widely descr
Externí odkaz:
https://doaj.org/article/5109c53cbb9644da9d21dcf323b7e7cb
Publikováno v:
European Journal of Mineralogy, Vol 35, Pp 157-169 (2023)
Many natural secondary arsenates contain a small fraction of phosphate. In this work, we investigated the olivenite–libethenite (Cu2(AsO4)(OH)–Cu2(PO4)(OH)) solid solution as a model system for the P–As substitution in secondary minerals. The s
Externí odkaz:
https://doaj.org/article/ee777a890a95492fb8f8596b47bac577
Publikováno v:
European Journal of Mineralogy, Vol 34, Pp 493-506 (2022)
The sulfidic waste dumps of the historical mining sites Giftkies and Kaňk (Czech Republic) have been exposed to a temperate climate over decades. This exposure generated low-pH conditions caused by metal sulfide decomposition. Tin sulfides of the st
Externí odkaz:
https://doaj.org/article/3f14502022b44de198a4bebf3475030b
Publikováno v:
European Journal of Mineralogy, Vol 33, Pp 357-371 (2021)
In this work, we have determined or evaluated thermodynamic properties of synthetic Sb2O5, MgSb2O6 (analogue of the mineral byströmite), Mg[Sb(OH)6]2⋅6H2O (brandholzite), and natural chapmanite [(Fe1.88Al0.12)Sb(Si2O5)O3(OH)]. Enthalpies of reacti
Externí odkaz:
https://doaj.org/article/4f286b9bb1e74aa0ad55f76e33d1a4a2
Autor:
A. M. Plumhoff, J. Plášil, E. Dachs, A. Benisek, J. Sejkora, M. Števko, M. S. Rumsey, J. Majzlan
Publikováno v:
European Journal of Mineralogy, Vol 32, Pp 285-304 (2020)
The phases pushcharovskite, geminite and liroconite were synthesized or acquired and characterized by powder X-ray diffraction, infrared spectroscopy, electron microprobe analysis, thermogravimetric analysis and optical emission spectrometry, as need
Externí odkaz:
https://doaj.org/article/63e1b8b30a174f77b1c1f8d8a137a19a
Publikováno v:
Biogeosciences, Vol 14, Pp 4867-4878 (2017)
Biomineralization of (magnesium) calcite and vaterite by bacterial isolates has been known for quite some time. However, the extracellular precipitation has hardly ever been linked to different morphologies of the minerals that are observed. Here,
Externí odkaz:
https://doaj.org/article/bc048b2e5fcb4411b39501d03b63bde7
Autor:
E. Schütze, A. Weist, M. Klose, T. Wach, M. Schumann, S. Nietzsche, D. Merten, J. Baumert, J. Majzlan, E. Kothe
Publikováno v:
Biogeosciences, Vol 10, Iss 6, Pp 3605-3614 (2013)
Biomineralization by heavy metal-resistant streptomycetes was tested to evaluate the potential influence on metal mobilities in soil. Thus, we designed an experiment adopting conditions from classical laboratory methods to natural conditions prevaili
Externí odkaz:
https://doaj.org/article/41d6503dd6f14e819f030b921433b731
Publikováno v:
Journal of Geosciences. :67-80
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::18a25b1fb424c7128ab6508a33acf2de
https://doi.org/10.3190/jgeosci.367
https://doi.org/10.3190/jgeosci.367
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