Results 71 to 80 of about 197,145 (380)

MINERAL COMPOSITION OF ORE CLASTS OF THE NOVY SHEMUR MASSIVE SULFIDE DEPOSIT, NORTH URALS [PDF]

open access: yesМинералогия, 2018
The features of mineral composition are considered for clastic ores composing the main part of rich Cu-Zn ores of the Novy Shemur massive sulfide deposit, North Urals.
N.P. Safina   +3 more
doaj  

Chemical Clues on the Formation of Planetary Systems: C/O vs Mg/Si for HARPS GTO Sample [PDF]

open access: yes, 2010
Theoretical studies suggest that C/O and Mg/Si are the most important elemental ratios in determining the mineralogy of terrestrial planets. The C/O ratio controls the distribution of Si among carbide and oxide species, while Mg/Si gives information about the silicate mineralogy. We present a detailed and uniform study of C, O, Mg and Si abundances for
arxiv   +1 more source

Nano-mineralogy Studies by Advanced Electron Microscopy [PDF]

open access: yes, 2007
Extended abstract of a paper presented at Microscopy and Microanalysis 2007 in Ft.
Ma, Chi, Rossman, George R.
core   +1 more source

The Architecture of Large Kurgans of the Scythians and Their Periphery: A Challenge for Magnetometer Prospections in the Eurasian Steppe Belt

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT The burial mounds of the early Iron Age, which we will refer to below as kurgans, from the nomadic equestrian warriors of Eurasia, form a very complex group of archaeological monuments. Archaeological excavations in Aržan 2 (Siberia) and Aleksandropol (Ukraine) show that the large burial mounds are complex architectural constructions.
Jörg W. E. Fassbinder, Anton Gass
wiley   +1 more source

Coal rock image recognition method based on improved CLBP and receptive field theory

open access: yesDeep Underground Science and Engineering, Volume 1, Issue 2, Page 165-173, December 2022., 2022
In view of the evident differences between coal and rock in visual attributes such as color, gloss, and texture, the complete local binary pattern (CLBP) image feature descriptor is introduced for coal and rock image recognition, and the original algorithm oversimplifies local texture features by ignoring imaging information from higher‐order pixels ...
Chuanmeng Sun   +4 more
wiley   +1 more source

MINERALOGY OF THE OVERBURDEN ROCKS OF THE KOKLAN W-MO DEPOSIT (SOUTH URALS) [PDF]

open access: yesМинералогия, 2015
The Koklan W-Mo deposit is overlapped by Mesozoic-Cenozoic rocks 120–140 m thick, which may be subdivided in four members on the basis of variable proportions of the rock-forming minerals (quartz, hydromica (with glauconite), smectites and X-ray ...
E.V. Belogub   +3 more
doaj  

Mineralogy of northern nearside mare basalts [PDF]

open access: yes, 2018
The mineralogy of mare basalts reflects the chemical composition of the magma source, as well as the physical and chemical environment of the rock's formation. It is significant for understanding the thermal evolution of the Moon. In this study, the spatial distribution of the mineralogy of the lunar northern nearside basalts was mapped using the Moon ...
arxiv   +1 more source

Weathering of the Ethiopian volcanic province: a new weathering index to characterize and compare soils [PDF]

open access: yes, 2015
© Walter de Gruyter Berlin/Boston 2015.Soil formation occurs through numerous physical and chemical weathering processes acting to alter the parent rock on the Earths surface.
Baxter, PJ   +6 more
core   +1 more source

ASSESSMENT OF GOLD MELT INFLUENCE ON THE PLATINOID MICROINCLUSIONS IN ANCIENT GOLD PRODUCTS: A COMPARISON WITH EXPERIMENTAL DATA [PDF]

open access: yesМинералогия, 2017
The results of gold melt influence on platinoid microinclusions in ancient gold products from the burial mounds of the Urals and Phanagoria are compared with the experimental data.
V.V. Zaykov   +9 more
doaj  

ECOGEOCHEMICAL CHARACTERISTICS OF THE YARLY-AMRY AND THE CHIBITKA RIVERS, LOCATED IN THE DISPERSION TRAIN OF AKTASH MERCURY DEPOSIT AND ITS WASTES (GORNY ALTAI)

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2022
The relevance of the study is caused by the need to develop Russian guidelines for assessing the environmental state of bottom sediments and their impact on living organisms, as well as water bodies in general.
Irina N. Myagkaya   +4 more
doaj   +1 more source

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