Results 11 to 20 of about 269,942 (310)

The importance of mineralogical knowledge in the sustainability of artisanal gold mining: a mid-south Peru case [PDF]

open access: yes, 2019
Mineralogy and gold processing techniques from several mining areas of the Nazca-Ocoña gold belt, Mid-South Peru, were investigated to assess the efficiency of gold extraction methods in relation to their mineralogy.
Alfonso Abella, María Pura   +7 more
core   +2 more sources

Reference couple gold deposit — placer as a basis for forecasting of the new gold deposits in Amur river basin

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2019
About 1400 placers and several dozens of ore gold deposits are known in the Amur gold-bearing province. Placers are to a large degree worked out, so the future of the province is seen to be in the discovery of the new gold deposits.
V. A. Stepanov
doaj   +1 more source

Progressive crushing 40Ar/39Ar dating of a gold-bearing quartz vein from the Liaotun Carlin-type gold deposit, Guangxi, southern China

open access: yesScientific Reports, 2022
Carlin-type gold deposits are among the largest hydrothermal gold deposits in the world. However, direct dating the metallogenic age of these deposits is difficult, because not all deposits provide material suitable for conventional radiometric methods ...
Rongguo Hu   +8 more
doaj   +1 more source

Gold and gold-bearing volcanogenic massive sulphide deposits of the Central Cuba

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2021
Background. Volcanogenic massive sulphide deposits (VMS) are the most important sources of Cu and Zn; they account for a large share of the world production of Pb, Ag, Au, Se, Te, Bi and Sb, as well as small amounts of many other metals. The polymetallic
D. De la Nuez Colon   +1 more
doaj   +1 more source

Gold deposits of the Czech Republic from a mineral policy perspective [PDF]

open access: yes, 2015
Gold production in the region that currently makes up the Czech Republic has a thousand-year-old tradition with peaks around the third century BC, 14th century AD and 20th century AD.
Janíková, Pavlína   +5 more
core   +1 more source

The metallogenic evolution of the Greater Antilles [PDF]

open access: yes, 2011
The Greater Antilles host some of the world’s most important deposits of bauxite and lateritic nickel as well as significant resources of gold and silver, copper, zinc, manganese, cobalt and chromium.
Lewis, J. F.   +3 more
core   +7 more sources

Gold and Greater Britain: Jevons, Trollope, and Settler Colonialism [PDF]

open access: yes, 2016
The Australian gold rushes of the 1850s provide an exemplary test case for exploring the impact of Greater Britain—the settler colonial empire—on the Victorian novel and political economy.
Philip Steer
core   +1 more source

Endogenous gold of the russian Altai

open access: yesРуды и металлы, 2023
The Altai of Russia in the geological and metallogenic sense includes the Altai Mountains and the northwestern part of Rudny Altai, and in administrative terms – the Altai Territory and the Altai Republic. Gorny Altai has experienced a complex history of
Gaskov I. V.
doaj   +1 more source

Gold nanoparticles electrodeposited on glassy carbon using cyclic voltammetry: Application to Hg(II) trace analysis [PDF]

open access: yes, 2012
The electrochemical determination of Hg(II) at trace level using gold nanoparticles–modified glassy carbon (AuNPs–GC) electrodes is described. Starting from HAuCl4 in NaNO3, gold nanoparticles (AuNPs) were deposited onto Glassy Carbon (GC) electrodes ...
Abidi   +58 more
core   +2 more sources

Deposits of gold-quartz formation in the Priamur province

open access: yesЗаписки Горного института, 2017
A description of gold-quartz formation deposits in the Priamur gold province is presented. Prevalence of gold-quartz deposits defines metallogenic profile of the province and presence of numerous rich placers.
V. A. Stepanov, A. V. Mel'nikov
doaj   +1 more source

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