Identification of mineral associations in skarn-rare-metallic deposits in Western Uzbekistan

This article solves the applied scientific problem of identifying mineral carriers and mineral associations of platinum mineralization in the skarn-gold-rare metal Koytash and Lyangar deposits. One of the applied research tasks was to identify the forms of mineral carriers and mineral associations of platinum-metal mineralization for these deposits. We carried out geological fieldwork of the Koytash and Lyangar deposits, which included a sampling of sulphide-rare metal and silver-polymetallic ores, and conducted laboratory studies by using mass spectrometry, atomic absorption, electron microprobe, and other modern methods. This article addresses the complex formation of sulphide-rare-metal and silver-polymetallic ores of the above-mentioned deposits. The formation of mineral associations bearing rare-metal (W-Mo) mineralization that formed in the early alkaline stage, in almost all sites, is completed by sulphide-rare metal and silver-polymetallic mineralization that often carry industrial-grade concentrations of noble and other metals. We have identified a recommended location for the concomitant extraction of useful components, the mineral composition, and the impure elements in them. These data show the prospects of sulphide-rare metals and sulphidepoly-metallic ores in the Koytash deposit for precious metals, bismuth, etc

Analysis of the Fauna of Parasitic Nematodes of Tomato and Cucumber in Different Conditions of Agrocenosis

the article in various conditions of agrocenosis, the fauna of parasitic nematodes of tomato plants and cucumber plants, their study and parasite analysis for them, analysis of phytonematodes are important occupations

Analysis of the Fauna of Parasitic Nematodes of Tomato and Cucumber in Different Conditions of Agrocenosis

the article in various conditions of agrocenosis, the fauna of parasitic nematodes of tomato plants and cucumber plants, their study and parasite analysis for them, analysis of phytonematodes are important occupations

Free-Living and Phytoparasitic Nematodes in the Degrez Reservoir

The article provides data on the fauna of free-living nematodes in the Degrez reservoir (Uzbekistan). As a result of the study, 91 species of nematodes belonging to 3 subclasses, 9 orders, 35 families, 52 genera were registered in the Degrez reservoir

PHOTOLUMINESCENCE AND RAMAN SPECTRA OF DIAMOND MICROPOWDERS PLACED IN PHOTON TRAPS

The photoluminescence and Raman spectra of diamond micropowders placed in photon traps under repetitively pulsed excitation by a copper vapor laser are studied. The recorded spectra of the photoluminescence and Raman spectra of micro-diamond powders were characterized by anomalously high intensity, which was associated with the trapping of exciting radiation in microparticles, the size of which significantly exceeded the lasing wavelength

Free-Living and Phytoparasitic Nematodes in the Degrez Reservoir

The article provides data on the fauna of free-living nematodes in the Degrez reservoir (Uzbekistan). As a result of the study, 91 species of nematodes belonging to 3 subclasses, 9 orders, 35 families, 52 genera were registered in the Degrez reservoir

PHOTOLUMINESCENCE AND RAMAN SPECTRA OF DIAMOND MICROPOWDERS PLACED IN PHOTON TRAPS

The photoluminescence and Raman spectra of diamond micropowders placed in photon traps under repetitively pulsed excitation by a copper vapor laser are studied. The recorded spectra of the photoluminescence and Raman spectra of micro-diamond powders were characterized by anomalously high intensity, which was associated with the trapping of exciting radiation in microparticles, the size of which significantly exceeded the lasing wavelengt

A Farm in Kumsangir of Tajikistan: A Perspective of Water/land Use along Pyandzh River

We carried out an assessment of natural resources use and management along with the on-farm observations and experience gathered through a fieldwork expedition along the riparian basin of Pyandzh River from Tajik side. It is described the natural vegetation irrigation history, technologies, agriculture, crops diversity and farmer development system through this vast area of Khatlon Province of Southwestern Tajikistan. Target area is Kumsangir District and Mumin Farm in the district along Pyandzh River. By performing this survey, we could further examine our preliminary studies on the potentials for agriculture using of Subsurface Drip Irrigation (SDI) technique on the right bank of Pyandzh River. Many of the local farmers, pastoralist communities, and some of the agricultural authorities and governmental leaders were interviewed to help understand the history of their irrigation infrastructures, their concerns on the issue of land use and agricultural activities, and their outlook and desires to implement cost-effective watershed-scale water saving technologies