Results 71 to 80 of about 64,749 (299)
MICROTOPOCHEMISTRY AND GEOCHEMICAL FEATURES OF A PYRITE NODULE OF СARBONACEOUS SILTSTONES OF THE SAF′YANOVKA MASSIVE SULFIDE DEPOSIT (CENTRAL URAL) [PDF]
Минералогия, 2017 Pyrite nodules of carbonaceous siltstones of the Saf´yanovka nonmetamorphosed massive sulfide deposit consist of a porous poikilitic pyrite core (zone A), which is partly transformed to metacrystalline pyrite aggregates at the periphery (zones В и С ...
N.P. Safina +3 more
doaj
Deep Underground Science and Engineering, EarlyView.How artificial intelligence (AI) and digital twin (DT) technologies are revolutionizing tunnel surveillance, offering proactive maintenance strategies and enhanced safety protocols. It explores AI's analytical power and DT's virtual replicas of infrastructure, emphasizing their role in optimizing maintenance and safety in tunnel management.
Mohammad Afrazi +4 more
wiley +1 more source
Sulfide mineralogy Reviews in mineralogy ;, v. 1./ Paul H. Ribbe, editor.
, 2019 In English.Volume 1 of Reviews in Mineralogy introduces to the mineralogy of sulfides. It covers the Determination, Relationships, and Classification of Sulfide Mineral Structures, Sulfide Crystal Chemistry, Electron Interactions and Chemical Bonding in ...
Ribbe Paul H.,
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Introduction: The role of modern mineralogy in cultural heritage studies
, 2019 This short introduction aims to rethink the role of modern mineralogy and highlights the diverse and important contributions that it may provide in the study of materials and processes relevant to cultural heritage. It is argued that mineralogy lies in a
Artioli G. +3 more
core +1 more source
PHYSICO-CHEMICAL CONDITIONS OF VENT FAUNA FOSSILIZATION IN THE VMS DEPOSITS OF THE URALS AND PONTIDES: FLUID INCLUSION DATA [PDF]
Минералогия, 2016 Fluid inclusions in quartz, barite and calcite from fossilized fauna of hydrothermal massive and clastic ores from the deposits of the Urals (Valentorka, Saf’yanovka, Yubileynoe, Molodezhnoe, Shemur) and Pontides (Killik, Kyzylkaya) are studied with ...
N.N. Ankusheva +2 more
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Study on fracture parameter calibration and failure characteristics of rock with hole and crack
Deep Underground Science and Engineering, EarlyView.The SIF and plastic zone equations for a single hole and crack have been derived. The model's failure state leads to the identification of four types of cracks. The plastic zone increases with increased brittleness and decreased crack length. Abstract Cracks within the surrounding rock of roadways significantly affect their stability and failure ...
Shaochi Peng, Wensong Wang
wiley +1 more source
Papers from the Department of Chemistry and Mineralogy ...
, 1896 Reprinted from the American journal of science, the Transactions of the Royal Society of Canada, and other scientific serials.No. 1 title reads: Papers from the Department of Chemistry and Mineralogy; no.
McGill University. Dept. of Chemistry and Mineralogy.
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INTERRELATIONS BETWEEN MALACHITE AND PSEUDOMALACHITE IN THE MEDNORUDYANSKOE DEPOSIT (CENTRAL URALS) [PDF]
Минералогия, 2015 The examples of consecutive and alternated crystallization of malachite and pseudomalachite in zonal crusts, stalactites, and stalagmites of Mednorudyanskoe deposit are reviewed. Special attention paid to indicators of cocrystallization of these minerals
V.I. Popova, V.A. Popov, I.A. Blinov
doaj
Review and prospects of shear test of bolted rock joints
Deep Underground Science and Engineering, EarlyView.The laboratory shear test equipment, test method, and numerical simulation of bolted rock joints were summarized. The shortcomings and limitations of the current research were analyzed, and the research prospects were proposed. Abstract Rock bolting is a critical approach in geotechnical engineering for supporting weak rocks.
Shulin Ren +4 more
wiley +1 more source