Results 11 to 20 of about 21,152 (308)

Evaluation the investment attractiveness of mining technological schemes at the development of watered titanium- zirconium deposits

open access: yesТехнічна інженерія, 2019
The efficiency of technological schemes at the mining watered titanium-zirconium deposits was established for the condition of the Motronovsky mining and processing plant pit by the index of the investments payback period.
B.Yu. Sobko, O.V. Lozhnikov
doaj   +1 more source

Modeling the formation of high metal concentration zones in man-made deposits [PDF]

open access: yes, 2018
Purpose. To study conditions of forming the zones of high metal concentration in metal-containing man-made deposits. To assess the likelihood of metal concentration in the placer core. Methods.
Korniienko, V   +4 more
core   +1 more source

Analysis of Grain Morphology, Mineral Composition, and Ore Grade on Gold Placer Deposits in Bantimurung, Pangkep Regency, South Sulawesi, Indonesia

open access: yesJGEET: Journal of Geoscience, Engineering, Environment and Technology, 2022
The information through social media shows that there is quite an intense placer mining activity by local residents in the Bantimurung area, Tondong Tallasa District, Pangkep Regency.
Ulva Ria Irfan   +2 more
doaj   +1 more source

Explorable and economically attractive mineral deposits in the Siberian and Far Eastern Federal Districts of Russia [PDF]

open access: yes, 2018
Purpose. Selection of the most explorable mineral deposits in the Siberian and Far Eastern Federal Districts of the Russian Federation as investment projects. Methods.
Boyarko, G
core   +1 more source

Characterization of Gold of the Murcielago Fluvial Placer (Central Honduras) and Its Possible Primary Sources

open access: yesGeosciences, 2023
The Murcielago gold placer is located in the Lepaguare Valley, Olancho Department (Central Honduras). The placer mineralogy includes silicates (quartz, garnets, amphibole, Ca-pyroxene, micas, epidote, and tourmaline); calcite; and in the heavy fraction ...
Sabrina Nazzareni   +6 more
doaj   +1 more source

Kemungkinan sebaran zirkon pada endapan placer di Pulau Kalimantan

open access: yesIndonesian Journal on Geoscience, 2014
http://dx.doi.org/10.17014/ijog.vol2no2.20073Most alluvium with valued heavy minerals originated from regions of continental shelf, from which recycle process for stable minerals play an important role in transportation and final concentration formation ...
Danny Zulkifli Herman
doaj   +1 more source

COARSE GOLD AND NUGGETS IN THE AMUR REGION

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2020
This paper investigates the aggregation forms, sizes and composition of native gold present in the ore deposits and placers of the Amur province. The province corresponds to the zone of the Late Mesozoic collision of geoblocks of the South-Eastern ...
V. A. Stepanov
doaj   +1 more source

The Petrogeochemistry and Zircon U-Pb Age of Nephrite Placer Deposit in Xiuyan, Liaoning

open access: yesYankuang ceshi, 2019
BACKGROUND The Xiuyan placer nephrite is located in the Xiyu gully, Baisha river valley and terrace, located in Xiuyan, Liaoning Province. Currently, the primary nephrite in the Xiyu gully is regarded as the Xiuyan placer nephrite's primary deposit ...
ZHENG Fen, LIU Yan, ZHANG Hong-qing
doaj   +1 more source

The rational for associated mining of phosphorites and glauconites in the development of titanium-zircon placers at the Tsentral’noye deposit

open access: yesRUDN Journal of Engineering Research, 2022
In order to maximize the use of the Tsentral’noye placer deposit in the Tambov region, a study was made of technological samples from overburden rocks and concentration tailings of titanium and zirconium ores, in which dispersed useful phosphorite and ...
Alexey F. Georgievskiy   +1 more
doaj   +1 more source

Gold in Devono-Carboniferous red beds of northern Britain [PDF]

open access: yes, 2015
We are grateful to D. Craw and an anonymous reviewer for comments that helped to clarify the paper.
Bellis, David   +3 more
core   +1 more source

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