Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Fred Kamona"'
Autor:
Vojtěch Ettler, Markéta Cihlová, Alice Jarošíková, Martin Mihaljevič, Petr Drahota, Bohdan Kříbek, Aleš Vaněk, Vít Penížek, Ondra Sracek, Mariana Klementová, Zbyněk Engel, Fred Kamona, Ben Mapani
Publikováno v:
Environment International, Vol 124, Iss , Pp 205-215 (2019)
Ore mining and processing in semi-arid areas is responsible for the generation of metal(loid)-containing dust, which is easily transported by wind to the surrounding environment. To assess the human exposure to dust-derived metal(loid)s (As, Cd, Cu,
Externí odkaz:
https://doaj.org/article/16886b65480d4bd8bf5cb769b1c35efc
Autor:
Vojtech Ettler, Martin Mihaljevic, Radim Jedlicka, Bohdan Kribek, Ben Mapani, Fred Kamona, Rob J. Bowell, Tomas Hrstka
Gallium (Ga) and germanium (Ge) are technologically essential critical elements. This study focuses on old metallurgical slags generated by processing non-ferrous metallic ores in Tsumeb, northern Namibia, containing interestingly high concentrations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c12d8d500005df2b7218e7744b1cff08
https://doi.org/10.5194/egusphere-egu22-6971
https://doi.org/10.5194/egusphere-egu22-6971
Publikováno v:
Open Journal of Geology. 10:1119-1152
This study re-evaluates the characteristics of Cu-Pb-Ag and Fe-Mn ore mineralization of the Kombat Mine and Gross Otavi Mine based on field geology, fluid inclusions, petrology, mineralogy, and geochemistry. This is to determine the genetic relations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0af305aa2c1a41273cb4d1fff6cd66b
https://doi.org/10.4236/ojg.2020.1011054
https://doi.org/10.4236/ojg.2020.1011054
Autor:
Martin Mihaljevič, Vít Penížek, Ondra Sracek, Aleš Vaněk, Bohdan Kříbek, Ben Mapani, Vojtěch Ettler, Markéta Cihlová, Fred Kamona, Zbyněk Engel, Petr Drahota, Mariana Klementová, Alice Jarošíková
Publikováno v:
Environment International, Vol 124, Iss, Pp 205-215 (2019)
Ore mining and processing in semi-arid areas is responsible for the generation of metal(loid)-containing dust, which is easily transported by wind to the surrounding environment. To assess the human exposure to dust-derived metal(loid)s (As, Cd, Cu,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e1d00a9a8352d42296c9cf61e3fadc96
http://www.sciencedirect.com/science/article/pii/S0160412018323560
http://www.sciencedirect.com/science/article/pii/S0160412018323560
Autor:
Vojtech Ettler, Martin Mihaljevic, Alice Jarosikova, Adam Culka, Bohdan Kribek, Ales Vanek, Vit Penizek, Ondra Sracek, Ben Mapani, Fred Kamona
Vanadium (V) is one of the key technologically critical elements. The slags produced by the historical mining and processing of Zn–Pb–V ores in the Waelz kiln at Berg Aukas (northern Namibia) can be potentially used as a secondary resource of V.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a78f98522fbbaaa4330a604d4b5fd2c
https://doi.org/10.5194/egusphere-egu2020-3672
https://doi.org/10.5194/egusphere-egu2020-3672
Autor:
Ondra Sracek, Vít Penížek, Martin Chren, Ben Mapani, Vojtěch Ettler, Fred Kamona, Aleš Vaněk, František Veselovský, Michael Komárek, Bohdan Kříbek, Petr Drahota, Martin Mihaljevič
Publikováno v:
Geoderma. 299:32-42
We studied Fe-Mn concentric nodules from Cutanic Luvisol in the northern part of Namibia, where agricultural fields are irrigated with the drainage water from the Kombat Cu-Pb-(Zn) mine (pH 7, metal concentrations in μg l − 1 : Fe 7, Mn 10, Zn 7,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e45b7e0c326b6f27200a47ef390e8b57
https://doi.org/10.1016/j.geoderma.2017.03.022
https://doi.org/10.1016/j.geoderma.2017.03.022
Autor:
Vojtěch Ettler, Ben Mapani, Imasiku Nyambe, Alice Jarošíková, Martin Mihaljevič, Bohdan Kříbek, Fred Kamona
Publikováno v:
Journal of Geochemical Exploration. 218:106631
Slags originating from the metallurgical processing of Pb-Zn vanadate ores at Berg Aukas (Namibia) and Kabwe (Zambia) contain interestingly high concentrations of V (3750–6140 mg/kg) and can be considered potential sources of this metal. We focused
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0659e62978f69347bd84ef06a444f553
https://doi.org/10.1016/j.gexplo.2020.106631
https://doi.org/10.1016/j.gexplo.2020.106631
Autor:
Fred Kamona, Aleš Vaněk, Vít Penížek, Vladimír Majer, Adam Culka, Bohdan Kříbek, Vojtěch Ettler, Alice Jarošíková, Martin Mihaljevič, Ondra Sracek, Ben Mapani
Publikováno v:
Applied Geochemistry. 114:104473
The historical mining and processing of Zn–Pb–V ores at Berg Aukas in northern Namibia left large amounts of various wastes. This study focuses on the mineralogical and geochemical investigation of the V-rich slags issued from the processing of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6dca575e362e0c3cf0a84357608597e
https://doi.org/10.1016/j.apgeochem.2019.104473
https://doi.org/10.1016/j.apgeochem.2019.104473
Autor:
Martin Mihaljevič, Ondra Sracek, Josef Ježek, Vojtěch Ettler, Ben Mapani, Imasiku Nyambe, Bohdan Kříbek, Vít Penížek, Fred Kamona, Ondřej Šebek, Aleš Vaněk, Filip Podolský, Vladimír Majer
Publikováno v:
Journal of Soils and Sediments. 15:648-658
Whereas mercury (Hg) has been extensively studied in gold mining areas (including artisanal mining), it is often overlooked as a minor contaminant in these districts, within which industrial base-metal mining and smelting are in operation. The aims o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80e9d4b1f55ee107082692fbd40069f8
https://doi.org/10.1007/s11368-014-1035-9
https://doi.org/10.1007/s11368-014-1035-9
Autor:
Fred Kamona, Erwan Le Ber, Dan Bosence, Bernie A. Vining, Gerd Winterleitner, Daniel Paul Le Heron
Publikováno v:
Sedimentary Geology. 294:1-12
Ice sheet meltback in the aftermath of the Sturtian (mid Cryogenian) glaciation was accompanied or followed by deposition of thick carbonate successions. In northern Namibia, the Rasthof Formation is a 200–400 m thick cap carbonate sequence divided
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::997dfdef3a786f95711ec66bed5fbfec
https://doi.org/10.1016/j.sedgeo.2013.05.003
https://doi.org/10.1016/j.sedgeo.2013.05.003