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Daizo Ishiyama
Akita University
80Publications
12H-index
371Citations
Publications 80
Newest
2018 in Mineralium DepositaIF: 3.37
Kofi Adomako-Ansah1
Estimated H-index: 1
(Akita University),
Daizo Ishiyama12
Estimated H-index: 12
(Akita University),
Rodney L. Allen7
Estimated H-index: 7
Adjacent to the world-class Boliden deposit, fine- to coarse-grained Zn-Pb-Sb-Au-rich sulfide-sulfosalt-bearing horizons occur within the base of a metasedimentary succession that has previously been regarded to stratigraphically overlie the Skellefte Volcanics and Boliden deposit. The metasedimentary succession comprises interbedded mudstone and normal-graded crystal-rich volcanic sandstone-siltstone units, interpreted to be low-density turbidity currents in a subaqueous environment below wave ...
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Hongbin Li1
Estimated H-index: 1
(Akita University),
Daizo Ishiyama12
Estimated H-index: 12
(Akita University)
+ 1 AuthorsYongjun Shao1
Estimated H-index: 1
(Central South University)
2 Citations Source Cite
2018 in Resource GeologyIF: 1.26
Quyen Pham (Akita University), Daizo Ishiyama12
Estimated H-index: 12
(Akita University)
+ 1 AuthorsYasumasa Ogawa12
Estimated H-index: 12
(Akita University)
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2018 in Aquatic GeochemistryIF: 1.42
Yasumasa Ogawa12
Estimated H-index: 12
(Akita University),
Daizo Ishiyama12
Estimated H-index: 12
(Akita University)
+ 5 AuthorsScott A. Wood (North Dakota State University)
This work assessed both the fractionation and the seasonal mobility variations of Ga and In in systems impacted by acidic thermal waters. This was accomplished by performing thermodynamic calculations using the PHREEQC algorithm and by assessing the activity of acidophilic iron-oxidizing bacteria. The pH of the Kusatsu thermal waters in Gunma Prefecture, central Japan, is rapidly increased following the addition of a lime suspension. After an abrupt pH increase, under which conditions free ions ...
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Baisui Han1
Estimated H-index: 1
(Akita University),
Batnasan Altansukh2
Estimated H-index: 2
(Akita University)
+ 8 AuthorsDaizo Ishiyama12
Estimated H-index: 12
(Akita University)
Abstract Sulfide copper mineral, typically Chalcopyrite (CuFeS 2 ), is one of the most common minerals for producing metallic copper via the pyrometallurgical process. Generally, flotation tailings are produced as a byproduct of flotation and still consist of un‒recovered copper. In addition, it is expected that more tailings will be produced in the coming years due to the increased exploration of low‒grade copper ores. Therefore, this research aims to develop a copper recovery process from flot...
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Stefan Đorđievski (Akita University), Daizo Ishiyama12
Estimated H-index: 12
(Akita University)
+ 1 AuthorsZoran Stevanović2
Estimated H-index: 2
Bor, Krivelj, and Bela Rivers belong to the watershed of Timok River, which is a tributary of transboundary Danube River. These rivers receive metal-rich acidic wastewater from metallurgical facilities and acid mine drainage (AMD) from mine wastes around Bor copper mines. The aim of this study was to determine the mobility and natural attenuation of metals and arsenic in rivers from Bor copper mines to Danube River during the year 2015. The results showed that metallurgical facilities had the la...
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2018
Atsushi Shibayama19
Estimated H-index: 19
(Akita University),
Baisui Han1
Estimated H-index: 1
(Akita University)
+ 8 AuthorsNobuyuki Masuda1
Estimated H-index: 1
(Akita University)
The aim of this research was to develop a copper recovery process from mine tailings (0.34%Cu) using flotation followed by high-pressure oxidative leaching (HPOL) and solvent extraction. The results of HPOL using the concentrate of mine tailings obtained by flotation under the optimal conditions of the previous study shown that an efficient copper dissolution of 94.4% was achieved in an H2O media, while the copper concentration of PLS reached to be 2.9 g/L. The solvent extraction of PLS obtained...
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2017 in Ore Geology ReviewsIF: 3.99
Kofi Adomako-Ansah1
Estimated H-index: 1
(Akita University),
Toshio Mizuta9
Estimated H-index: 9
(Akita University)
+ 1 AuthorsNapoleon Q. Hammond1
Estimated H-index: 1
(University of Limpopo)
Abstract Orogenic gold mineralization in the Amalia greenstone belt is hosted by oxide facies banded iron-formation (BIF). Hydrothermal alteration of the BIF layers is characterized by chloritization, carbonatization, hematization and pyritization, and quartz-carbonate veins that cut across the layers. The alteration mineral assemblages consist of ankerite-ferroan dolomite minerals, siderite, chlorite, hematite, pyrite and subordinate amounts of arsenopyrite and chalcopyrite. Information on the ...
1 Citations Source Cite
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