Results 21 to 30 of about 711,547 (302)

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

NATIVE STOOLS ON THE GOLD COAST [PDF]

open access: yesAfrican Affairs, 1905
n ...
openaire   +1 more source

Preparation and evaluation of the exotoxin A nano-gold conjugate as a vaccine candidate for Pseudomonas aeruginosa infections [PDF]

open access: yesIranian Journal of Basic Medical Sciences, 2021
Objective(s): Pseudomonas aeruginosa is an opportunistic pathogen that is an important cause of nosocomial infections. This bacterium produces various virulence factors, among which exotoxin A is significantly involved in mortality and morbidity. In this
Masoumeh Abbasi   +4 more
doaj   +1 more source

Gold Binding by Native and Chemically ModifiedHops Biomasses [PDF]

open access: yesBioinorganic Chemistry and Applications, 2005
Heavy metals from mining, smelting operations and other industrial processing facilities pollute wastewaters worldwide. Extraction of metals from industrial effluents has been widely studied due to the economic advantages and the relative ease of technical implementation.
López, M. Laura   +7 more
openaire   +2 more sources

MINERALOGY AND ORE FORMATION CONDITIONS OF THE NAILY GOLD DEPOSIT (SOUTH URALS) [PDF]

open access: yesМинералогия
The paper examines mineralogy of noble metals and ore formation conditions at the Naily gold deposit (South Urals), which is hosted in pyrite-bearing talc-carbonate, chlorite-quartz-carbonate and quartz-carbonate metasomatites after serpentinites and ...
A.D. Smirnitskaya   +5 more
doaj   +1 more source

Petrogenesis of the Morobe Granodiorite and their shoshonitic mafic microgranular enclaves in Maramuni arc, Papua New Guinea

open access: yesOpen Geosciences, 2023
The Miocene tectonics of Papua New Guinea, where subduction, arc-continent collision, and changes in subduction direction are considered to have occurred, is very complex and various tectonic models have been proposed.
Hoshide Takashi   +2 more
doaj   +1 more source

On the gold content in the antimony and mercury mineralization in Priamurye

open access: yesРуды и металлы, 2023
The data on the geological and structural position, composition of metasomatites, ores, and gold content of antimony and mercury deposits and occurrences of the Priamursky gold-bearing area are presented.
Stepanov V. A.
doaj   +1 more source

Microtopochemistry of pyrite nodules of siliceous siltstones from the Yubileinoe massive sulfide deposit (the Southеrn Urals): LA-IСP-MS data

open access: yesЛитосфера, 2018
Object . The zonal pyrite nodules and metacrystals from siliceous siltstones of ore-bearing horizon of the Second ore body from the Yubileynoe massive sulfide deposit are studied. Materials and methods .
Alexander S. Tseluyko   +2 more
doaj   +1 more source

Gold composition and conditions of Southern Ak-Dag gold-sulfide-quartz ore occurrence formation (Western Tuva)

open access: yesЛитосфера, 2020
Research subject. The paper presents data on the mineralogical, geochemical and fluid inclusion features of the Southern Ak-Dag gold-sulphide-quartz ore occurrence in Western Tuva.Methods.
N. N. Ankusheva, R. V. Kuzhuget
doaj   +1 more source

SEQUENTIAL EXTRACTION OF SUBSTANCES WITH KNOWN Au SPECIATION – AN EXPERIMENTAL DATA

open access: yesГеодинамика и тектонофизика, 2022
A study has been conducted on the features of distriburion of Au among the fractions of a 7-step sequential extraction procedure using model substances that are similar in composition to natural organic matter from the dispersion train of sulfide ...
B. Y. Saryg-ool   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy