Results 21 to 30 of about 737,947 (298)

Mineral resources and national economic security: current features [PDF]

open access: yes, 2019
Purpose is to estimate current mineral and raw material complex and its effect on national economic security basing upon determination and analysis of the integrated index. Methods.
Bank, O   +4 more
core   +1 more source

Distribution Characteristics and Ecological Risk Assessment of Heavy Metals in Soils from Jiulong Li-Be Mining Area, Western Sichuan Province, China

open access: yesYankuang ceshi, 2021
BACKGROUND The Jiulong area in western Sichuan is an important rare metal production area in China, which has a large resource potential. As an ecological protection barrier on the upper reaches of the Yangtze River, the ecological environment of this ...
YU Feng   +7 more
doaj   +1 more source

Predictive Prospecting Using Remote Sensing in a Mountainous Terrestrial Volcanic Area, in Western Bangongco–Nujiang Mineralization Belt, Tibet

open access: yesRemote Sensing, 2023
The Bangongco–Nujiang metallogenic belt of Tibet is a main suture zone in the Qinghai–Tibet Plateau, which is known as an important porphyry–epithermal–skarn Cu-polymetallic mineralization zone in China.
Longyang Bai   +6 more
doaj   +1 more source

Cleaning talc samples from iron-containing minerals [PDF]

open access: yesE3S Web of Conferences
In studying the material composition of talc ore samples, a comprehensive range of chemical, spectral, optical-emission spectral, granulometric, X-ray structural-phase, physic-mechanical, and mineralogical analyses were conducted.
Normurodov Azizbek   +5 more
doaj   +1 more source

Development of a Protective Enclosure for Remote Sensing Applications—Case Study: Laser Scanning in Underground Coal Mines

open access: yesResources, 2020
Sensing for equipment location and mapping in explosion risk zones such as underground coal mines is a difficult proposition due to the regulatory requirement for certified protective enclosures to safely house the required complex electrical equipment ...
Mark Dunn, Peter Reid, John Malos
doaj   +1 more source

Hydrochemical Prospecting and Its Application in Green Investigation for the Large Mineral Resource Base: A Case Study from Jiulong Area in Western Sichuan Province

open access: yesYankuang ceshi, 2021
BACKGROUND The 'Strategic Emerging Industry Mineral Investigation' project actively advocates the application of new theories and methods of green investigation in the exploration and development of large-scale resource bases.
YU Yang   +7 more
doaj   +1 more source

SOME ASPECTS OF GEORADIO LOCATION IN MINERAL RESOURCES SURVEYING ENERGY [PDF]

open access: yes, 2018
Study the possibility of developing the technical and technological justification of georadio location of minerals according the quantity and quality characteristics of the concrete ...
YANKIN, Dmytro
core   +2 more sources

A tunnel coaxial 3D hyperspectral scanning system for underground mine investigation

open access: yesScientific Reports, 2023
A hyperspectral scanning system was developed for three-dimensional (3D) surface mapping in underground spaces, such as mine shafts and tunnels. A hyperspectral line-scanning camera was mounted on the rotating driver unit coaxial with the tunnel to image
Hyunseob Baik   +2 more
doaj   +1 more source

The dynamic evolution of compaction bands in highly porous carbonates: the role of local heterogeneity for nucleation and propagation

open access: yesProgress in Earth and Planetary Science, 2020
The formation of compaction bands in porous brittle rocks such as sandstones and carbonates has a significant impact on the localization mechanisms preceding earth and planetary surface instabilities such as earthquakes, landslides, and plate boundary ...
Xiao Chen   +4 more
doaj   +1 more source

Industrial mineral resources of Zambia [PDF]

open access: yes, 2000
Zambia has for many years been heavily dependent upon the mining of copper which, combined with cobalt production, represents over 98% of mineral sales and 75% of export earnings (1997 figures).
Mitchell, Clive
core  

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