Results 61 to 70 of about 976 (183)

Leaching Kinetics of Sulfides from Refractory Gold Concentrates by Nitric Acid

Metals, 2019
The processing of refractory gold-containing concentrates by hydrometallurgical methods is becoming increasingly important due to the depletion of rich and easily extracted mineral resources, as well as due to the need to reduce harmful emissions from ...
Denis A. Rogozhnikov, Andrei A. Shoppert, Oleg A. Dizer, Kirill A. Karimov, Rostislav E. Rusalev   +4 more
doaj   +1 more source

The age of mineralization of Mayskoe gold ore deposit (Central Chukotka): results of Re-Os isotopic dating

Записки Горного института, 2020
The article presents the results of the sulfide mineralization dating of the Mayskoe gold ore deposit using the Re-Os isotope system and isochron age estimation method of the main sulfide minerals: arsenopyrite, pyrite, and antimonite.
Dmitry S. Artemiev, Robert Sh. Krymsky, Boris V. Belyatsky, Dmitry S. Ashikhmin   +3 more
doaj   +1 more source

Biogenic arsenopyrite in holocene peat sediment, India

Ecotoxicology and Environmental Safety, 2003
The plant organic matter in the peat layer deposited around 6650+/-110 and 4800+/-80 years BP, during the transgressive and regressive phases of sea level changes, respectively in the dried part (playa) of the present Pulicat lagoon in Palar Basin (southeast coast of India) was studied to elucidate the biogenic pyrite generation and associated trace ...
Anjum, Farooqui, Usha, Bajpai
openaire   +2 more sources

Geochemistry and U–Pb Zircon Geochronology of Granite at the Pilok Sn–W Deposit, Thailand: Implications for Late Triassic Tin Metallogenesis

Resource Geology, Volume 76, Issue 1, January/December 2026.
Zircon U–Pb dating constrains the Pilok Sn–W granite emplacement at 212–208 Ma, during the Late Triassic post‐collisional extension after the Sibumasu‐Indochina collision. This timing coincides with widespread tin‐bearing granite magmatism throughout Southeast Asia, marking a major regional metallogenic event. ABSTRACT The Pilok Sn–W deposit in western
Mallika Intachai, Ryohei Takahashi, Andrea Agangi, Marlina A. Elburg, Punya Charusiri, Pearlyn Manalo, Hinako Sato, Cendi D. P. Dana, Manuel Nopeia   +8 more
wiley   +1 more source

Trace Elements and Sulfur Isotopes of Sulfides at the Leon Sediment‐Hosted Gold Deposit, Ratatotok District, North Sulawesi, Indonesia: Constraints on the Genesis of Ore Formation

Resource Geology, Volume 76, Issue 1, January/December 2026.
The Leon deposit is interpreted as a sediment‐hosted gold deposit with a probable distal intrusion‐centered setting. Hydrothermal fluids migrated through fractures and bedding planes, likely leached sulfur and metals from andesitic rocks, and formed orebodies along bedding planes and at limestone–andesite contacts controlled by permeability contrasts ...
Muhammad Arba Azzaman, Ryohei Takahashi, Pearlyn Manalo, Andrea Agangi, Manuel Nopeia, Hinako Sato, Arifudin Idrus, Doly R. Simbolon, Renaldi Suhendra   +8 more
wiley   +1 more source

Gold Mineralizing Potential of the Late Triassic Calcareous, Carbonaceous and Sulfide‐Rich Sedimentary Rocks of the Isatomae Formation in the South Kitakami Belt, Japan

Resource Geology, Volume 76, Issue 1, January/December 2026.
Isatomae Formation illustrating mineralogical and geochemical characteristics. (a) Overview of the Isatomae Formation, showing the marine anoxic environment and related biogenic processes. (b) Deposition of metal‐rich Fe oxyhydroxides were transformed into sulfides through diagenesis and low grade metamorphism.
June Born Born, Yasushi Watanabe, Takuya Echigo, Yoshiaki Kon, Takumi Mimura   +4 more
wiley   +1 more source

İZMİR-ÖDEMİŞ YÖRESİNDEKİ ARSENOPİRİTLERLE İLİŞKİLİ ALTIN OLUŞUMLARININ MADEN JEOLOJİSİ

Bulletin of the Mineral Research and Exploration, 2008
Bu çalışma İzmir-Ödemiş bölgesinin kuzeydogusunda yer alan Elmacıgedigi, Zeytinlik, Yılanlıkale ve Kemer yörelerinde yüzeyleyen damar görünümlü altın içeren arsenopirit oluşumlarının ve onların yakın civarlarında izlenen mikaşist, amfibol şist ve ...
Sinan AKISKA, Taner ÜNLÜ, İ. Sönmez SAYILI   +2 more
doaj  

Approaches to Improve the Bioleaching of Arsenopyrite Flotation Concentrate with Acidithiobacillus ferrooxidans: A Comparison of Two Strains of Different Origin

Engineering Proceedings
Bacterial leaching is a well-known green technology proposed for the extraction of valuable metals into solution. However, this biotechnology has some “bottle neck” problems too.
Tatiana Abashina, Alyona Yachkula, Artem Shaikin, Mikhail Vainshtein   +3 more
doaj   +1 more source

Peculiarities of the distribution of rare-earth elements in the ores of some gold deposits of Eastern Transbaikalia

Известия высших учебных заведений: Геология и разведка, 2018
The distribution of rare-earth elements (REE) in ores of gold deposits of East Transbaikalia has shown that the ore-bearing magma chambers have different depths and degrees of differentiation.
B. N. Abramov
doaj   +1 more source

Effects of Ultrasonic Power and Intensity of Mechanical Agitation on Pretreatment of a Gold-Bearing Arsenopyrite

Archives of Acoustics
In this paper, the effects of an ultrasonic power and the intensity of mechanical agitation for pulp on alkaline pretreatment of gold-bearing arsenopyrite were investigated.
Won Chol HONG, Ye Yong KIM, Chang Dok KWON, Kwang Chol SO   +3 more
doaj   +1 more source