Results 101 to 110 of about 2,093,906 (357)

Mineralogy of the Drazhnoye gold ore deposit, the Republic of Sakha (Yakutia)

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2019
New data on the mineral composition of the Drazhnoye gold deposit, located within the Taryn ore field, have been presented. The samples from the central and flank areas of the deposit, which characterize ore and barren zones, have been studied.
V. Yu. Chikatueva, S. A. Sitkevich
doaj   +1 more source

Geological and geochemical characteristics and formation mechanisms of the Zhaishang Carlin-like type gold deposit, western Qinling Mountains, China

open access: yes, 2015
Located in the western part of the Min–Li metallogenic belt within the western Qinling Mountains, the Zhaishang gold deposit is a giant Carlin-like disseminated gold deposit discovered recently.
Jiajun Liu   +10 more
semanticscholar   +1 more source

Cu‐Based MOF/TiO2 Composite Nanomaterials for Photocatalytic Hydrogen Generation and the Role of Copper

open access: yesAdvanced Functional Materials, EarlyView.
HKUST‐1/TiO2 composite materials show a very high photocatalytic hydrogen evolution rate which increases as a function of the irradiation time until reaching a plateau and even surpasses the performance of the 1%Pt/TiO2 material after three photocatalytic cycles.
Alisha Khan   +9 more
wiley   +1 more source

EXPECTED OCCURRENCE OF THE BLIND ORE BODIES AT THE LOWER LEVELS OF THE BALEI DEPOSIT AND A MECHANISM OF THE RICH ORES FORMATION AT THE NEAR-SURFACE GOLD-SILVER ORE DEPOSITS

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2017
The gold ore chimneys of 2 types have been shown to be developed at the near-surface deposits of gold and silver ores. These types are: 1 - bulk ones, of the vein-nested-veinlet ore bodies of stockwork shapes and 2 - small pay streaks of the ore bodies ...
E. M. Nekrasov
doaj   +1 more source

The Rise of the Current Banking System in Japan, 1868-1936 [PDF]

open access: yes
Learning by doing convinced the Japanese government to create in 1882 a relatively transparent and credible central bank, Bank of Japan, and adopted the gold standard in 1898 to prove it.
Hassouna Moussa, Jiro Obata
core  

Monitoring Compliance with Open Access policies [PDF]

open access: yes, 2015
In the last few years, academic communities have seen an increase in the number of Open Access (OA) policies being adopted at the institutional and funder levels.
[contributor] McCutcheon, Valerie   +2 more
core  

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

open access: yesAdvanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong   +3 more
wiley   +1 more source

Exploration and scientific research of the Jiaojia-type gold deposit

open access: yesDizhi lixue xuebao
[Objective] Jiaojia-type gold deposit is a new type of gold mine discovered by Shandong geologists in northwestern Jiaodong in the 1960s, and its output is controlled by regional tectonic fracture zones.
ZHOU Mingling   +19 more
doaj   +1 more source

Gold in iron oxide copper–gold deposits

open access: yesOre Geology Reviews, 2016
Abstract Iron oxide copper–gold (IOCG) deposits contain economic or anomalous gold, and the gold distribution is important both for its economic significance and ore genesis. However, the gold distribution in IOCG deposits and its controlling factors remain unclear.
openaire   +1 more source

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