All articles - Geochemistry and Geophysics

Number of articles: 51
  • This article is about oil products of the Republic of Uzbekistan and their classification
    Barno Masharipova
    143-145
    91   29
  • In Uzbekistan’s quarries and mines, the use of modern drilling equipment with hydraulic impact actuating equipment is increasingly being used, which in turn raises the question of establishing optimal basic technological dependencies and modes of hydraulic impact drilling in specific mining and geological and mining and technological conditions of field development
    S Abdullaev
    118-120
    65   18 18
  • В статье приведены результаты исследования процессов получения оксида магния путем разложения серпентинитов Арватенского месторождения серной кислотой и с добавкой азотной кислоты в раствор серной кислоты последуюшим разделением кремнезема из суспензии, нейтрализацией фильтрата аммиаком до значения рН 8,5 для осаждения и раздаеления ионов примесных металлов, осаждение и разделения ионов магния из раствора с использованием аммиака и углекислого аммония, термическое разложение корбаната магния с получением оксида магния. Установлено, что использования смесь кислот т.е. с добавкой небольшой количества азотной кислоты в раствор серной кислоты увеличиваеть выход оксид магния от 83,34% до 92,68 % чем при использования только серной кислоты при одинрковых нормах. При оптимальных условиях после термического разложения карбоната магния получен продукт содержащый 97,13% оксид магния со степенью извлечения 92,68 % от исходного сырья.

    G Usenova, T Pirimov
    54-63
    133   36
  • Основным носителем оксидов железа в производстве стекла являются кварцевые пески. Согласно ГОСТ 22551-77 стекольные кварцевые пески классифицируют на 15 марок, различающихся содержанием основного вещества и примесей, прежде всего оксидов железа[1].

    M Yunusov, Z Babaev, Sh Matchonov, M Abdullaeva, M Shomurotov
    108-109
    73   18
  • The ability to obtain valuable raw materials such as kaolin, metakaolin, quartz sand and obtain a number of materials necessary for the national economy by introducing the technology ofenrichment of mineral raw materials available in our republic, which meets the requirements of the time, was successfully tested in laboratory and semi-production conditions.

    Z Babaev , Sh Matchonov , A Ruzmetovа , Yu Yakubov , D Davletova
    115-117
    73   14
  • Научно-технический прогресс, достигнутый за последние годы в народном хозяйстве во многом обязан успешному применению материалов, в основе которых лежат редкие элементы и редкоземельные элементы (РЗЭ). Современное использование РЗЭ связано в основном с такими областями их применения, как катализаторы, магниты и материалы автомобильной промышленности. Одним из наиболее широко используемых методов разделения РЗЭ является жидкостная экстракция. [1]

    I Yakimenko
    118-120
    109   28
  • Для подогрева сырья в нефтеперегонной установке используются горячие технологические потоки, выходящие из ректификационной колонны - дистилляты топливных фракций и мазута [1-4]. Для подогрева углеводородного сырья на НПЗ в основном применяют трубчатые теплообменные аппараты [2;4;5;6].

    Sh Rakhimzhanova, Kh Manazarova, S Nodirkhonova
    120-122
    65   17
  • Производители жидких мыл, косметики, лекарственных средств и других продуктов в Узбекистане нуждаются в дешёвом гидроксиде калия, который можно производить из местного хлорида калия, производимого в АO “Дехканабадский калийный завод”

    F Chavlieva, B Kucharov, A Erkaev, A Khamidov, B Turakulov, M Kushakov
    128-129
    121   50
  • Поскольку почвенная экологическая среда сложна, внесение удобрений, и дальнейшее их быстрое растворение, а также распространение в пахотном слое может привести к изменениям в устойчивых почвенных микроценозах.

    O Myachina, L Mamasalieva, R Kim, B Pulatov, A Rakhmonov, O Narzullaev
    240-241
    59   16
  • In this work, cotton gin waste – CGW-phosphorus composts based on the waste of CGW and deposit Guliob phosphorite (GPh) were prepared, with wide mass ratios of CGW : GPh = 80 : 20; 75:25; 70 : 30; 65:35; 60 : 40; 55:45; 50 : 50; 45:55 and 40:60. The kinetics of the conversion of indigestible forms of phosphorus and calcium into a form assimilable for plants in poor GPh has been studied. It has been shown that an increase in the mass fraction of phosphate raw materials in relation to CGW leads to an increase in the content of the total form of phosphorus pentoxide in composts, but to a decrease in the relative content of the assimilable form of P2O5 and CaO. The longer the exposure time of CGW-phosphorite composts, the more forms of phosphorus and calcium digestible for plants.

    Begali Pirimkulov, Abdurasul Mamataliyev, Uktam Temirov, Shafoat Namazov
    120-130
    103   18
  • Higher plants, including ornamental plants, develop various diseases under the influence of pathogenic microorganisms as a result of the influence of external factors. This affects people's health in parks, arboretums, and recreational gardens due to the decrease in the decorative properties of plants, the shortening of their lifespan, and the release of spores of some types of fungi into the environment. The reason for this is that during the current revolution of science and technology development, the range of negative effects of anthropogenic, technical factors, and microorganisms on the plant world is expanding, causing stress in the development of plants. In order to prevent such negative situations, it is of great practical and theoretical importance to study the species composition of the micromycete biota distributed in them and to develop scientifically based measures for the protection of ornamental plants from diseases based on the analysis of their bioecological characteristics.

    Dilfuza Sodikova, Munira Kasimova
    131-138
    48   25
  • Subject of the inquiry: An old irrigated typical sierozem soil, an irrigated meadow alluvial soil, cotton crop, labeled and non-labeled nitrogen fertilizer, manure, furrow irrigation, drip irrigation, polyethylene film, mulch.
    Aim of the inquiry: Regulation of transformation processes of soil and fertilizer nitrogen in accordance with requirements of cotton plant in the belt of irrigated sierozem soils.
    Method of inquiry: Field, lyzimeter and pot experiments with cotton were conducted in accordance with “Methods of field experimentation with irrigated cotton” (Uzbekistan Cotton Growing Research Institute, 1973, 1981). Chemical analyses of soil and plant samples were performed according to "Methods of agrochemical analyses of soil and plants" (Uzbekistan Cotton Growing Research Institute, 1963, 1977). Relative growth rate of cotton stem and dry mass accumulation were determined as suggested by D. 13. South (1991). Relative growth rate of nitrogen productivity was calculated according to P. Poorter (1989). Data were subjected to analysis of variance using PROC GLM procedures in SAS (SAS Institute, 2003).
    The results achieved and their novelty: The qualitative data on soil nitrate content as well as the N-total concentrations in cotton leaves allowed for the differentiation and thus improvement of the nitrogen fertilizer application norms and timing for cotton growth.
    Fertilizer nitrogen recovery in cotton was determined by l?N methods both for cotton grown with a mulch of polyethylene film and combined with various timings of nitrogen application, different nitrogen quantities and under different irrigation modes including drip and furrow irrigation.
    The impact of nitrogen quantities applied during planting on the germination of cotton seeds and stand establishment was researched. The content and dynamic of all soil mineral nitrogen forms were investigated. In addition, estimated was the quantitative ratio of available soil NPK throughout the cotton vegetation period, the relative growth rate of nitrogen productivity, cotton growth and development, and cotton yield depending of the nitrogen application timing while cotton was grown w ith the use of polyethylene film.
    Mineralization and immobilization processes of nitrogen in the soil and the fertilizer nitrogen l5N balance was investigated under various ratios of manure carbon and with different brands of fertilizer nitrogen. Results showed that the optimal C:N ratio was obtained with the combination of cow-dung carbon + nitrogen of mineral fertilizer + manure applied, which was reflected in an improved availability of plants nutrients content in the soil, which in turn increased cotton yield and the quality of the cotton lint.
    The transformation of mineral forms of soil nitrogen, NPK uptake and dry mass accumulation by plants, as well as cotton yield quantities and quality were investigated subject to various nitrogen rates and application timing combined with different irrigation technologies, irrigation methods and modes.
    Practical value: Based on the results following implications options could be elaborated:
    - A method for a refined use of nitrogen fertilizers application both in terms of quantities and timing on cotton which is based on the nitrate content in the soil (for automorphyc soils only) and on the nitrogen concentration in plant leaves which is applicable for all soil types;
    - nitrogen fertilizer application methods for various irrigation technologies used in cotton production (alternate irrigation during whole vegetation);
    - efficient method of a combined application of nitrogen fertilizer and manure on cotton, which lowered the use of nitrogen fertilizer rate by 30% and concurrently increased the scope of usage for organic fertilizer;
    - nitrogen fertilizer application timing on cotton when cotton is grown with the use of polyethylene film.
    Degree of embed and economic efficiency: The results of the investigations formed the scientific basis for the development of “Practical recommendations in agriculture: soil, water, fertilizer” (in Russian, MAWR, Tashkent, 1996. - 108 p.), “Recommendations on production of high and qualitative cotton yield in Tashkent Province” (in Uzbek, UzSPCA, Tashkent, 1996. - 16 p.), Recommendations on the use of mineral and organic fertilizer in cotton growing” (in Uzbek, UzSPCA, Tashkent, 2003. - 24 p.). Practical recommendations as presented in this thesis were included in various provinces of the country but on a total area of 80,000 hectares. Hence this would lead to a net profit varying from 48,826 to 215,981 sums ha'1 caused by the recommendations
    Sphere of usage: Farmers units specialized in cotton production in the belt of the irrigated sierozem soils.

    Nazirbay Ibragimov
    1-48
    44   10
  • Subject of research: slopes with various inclinations from loess soils characterized by different physical and mechanical measures.
    Purpose of work: to work out the method of seismic stable slope that would assess the dynamic stability of slopes and measures that provide seismic stability of slopes under dynamic (seismic) influence.
    Method of research: laboratory experimental researches on the models of loess slopes using modem measuring instruments and techniques.
    The results obtained and their novelty: the dynamics of stable and dcfonnational functions of the loess in slopes of different profile was studied depending on the content and condition of soils under the seismic influence of different intensively; the calculation method of determining the critical acceleration is proposed for inclined surface of soil thickness (criteria of soil structure's dynamic stability); the condition of diluted zone’s appearing out of steep slope and the size of dynamic loading was displayed; “the method of seismic stable slope” fro evaluation of slope’s dynamic stability is proposed herewith; the measures for providing the seismic stability of slopes by loading the surface of the slope were worked out.
    Practical value: consists of working out the criteria for evaluation the possibility of landslides dilution, method of slope’s seismic stability and measures which provide the seismic stability of dewy slopes.
    Degree of embed and economic effcctivity : the results of the research were used the evaluation of seismic stability of the erection built on natural slope. The summary of dissertation paper is used by MA students of TASI specializing in “Hydro technical erections” as scientific example. The economic affcctivity of seismic stable slope and ways of loading the slope is first of all aimed in providing the seismic stability of loess slope.
    Field of application: to provide seismic stability of dewy loess slopes in seismic regions.

    Adkham Sadykov
    1-19
    50   12
  • Subjects of the inquiry: river pools of southwest region RUz (Zcrafshan, Kashkadarya, Surhandarya) and larger collectors in irrigated zone within the limits of Samarkand, Navoi, Bukhara, Kashkadarya and Surkhandarya areas.
    Aim of the inquiry: to study of various hydrological and hydrochcmical characteristics the river and collector-drainage waters of a southwest part of Uzbekistan, carry out hydrochcmical division into districts of irrigated territory of the given region and to make the change forecasting of a mineralization and a chemical compound of these waters with the purpose of their full use in future
    Method of inquiry: hydrological analyze, methods of mathematical statistics, cartographical methods and also pond landscapc-galogcochcmical method and etc.
    The results achieved and their novelty: maps of «Mineralization and chemical compound of river waters of the southwest of Republic Uzbekistan » and “Hydrochcmical regions irrigated zone southwest of Uzbekistan on a quality of collector-drainage water”. Hydrochcmical division into districts. Quantity indicators, describing laws of modem change hydrological and hydrochemical regimes of collector-drainage waters. The forecasting of the mineralization and chemical compound of river and collector-drainage waters for a level up to 2015 year.
    Practical value: the received results of investigations can form a basis by search of ways rational use of available superficial water resources of southwest region in irrigated agriculture in view of their mineralization and a chemical compound.
    Degree of embed and economic effectively: materials of the dissertation have been used in development of Committee on wildlife protection of Navoi region and in educational process of Hydrometeorological college.
    Sphere of usage: Ministry Agriculture and Water Management of RUz, project institutes, higher educational institutions

    Sanjar Shodiev
    1-23
    52   9
  • Тадқиқот объектлари: Марказий Осиёнинг сейсмик фаол сриклар зоналари.
    Ишнинг мақсади: Марказий Осиё срости сувларида гслийнинг тақсимланиши хусусиятларини ва уни зилзилаларни прогноз қилишда қўллаш имкониятини аниклаш.
    Тадқиқот методлари: Барча вазифалар гелийнинг срости сувларидаги мутлақ микдорини мажмуали тахлил этишнинг муаллиф томонидан ишлаб чиқилган усули асосида счилган. Гелий микдорини ўзгариши қонуниятларини ва табиатини аниқлаш, ҳамда зилзилаларни прогноз қилишда инструментал-аналитик усуллар кўлланилган.
    Олинган натижалар ва уларнинг янгилиги: Биринчи маротаба Марказий Осиёнинг геологик-тектоник шароитлари учун срости сувларида гелийнинг эркин микдорини аниқлаш усули ишлаб чиқилган. Регионнинг турли гидрогеологик шароитлари учун алоҳида геодинамик полигонларда гелийнинг мутлақ микдори ўрганилган. Геологик-гидрологик майдонларда гелий аномалияларининг фазо-макондаги конуниятлари сейсмопрогноз мониторингни ташкил этиш ва уларни табиий генезисини баҳолаш учун гелийнинг вариациялари асосида ажратилган. Гслийнинг срости сувларида тарқалишининг хусусиятлари ўрганилган ва уларнинг юкори микдори узилишли бузилишлар зоналари ва блоклар чсгараларида кузатилиши аникланган. Ушбу худудлар учун биринчи марта гелийнинг срости сувларидаги микдори аномалиялари ва уларни зилзилаларни тайёрланиш парамстрлари билан богликлиги коррсляцион боғлиқликлар бўйича баҳоланган.
    Амалий ахамияти: Гелийнинг срости сувларидаги микдорини ўрганиш бўйича муаллиф томонидан ишлаб чиқилган усул зилзилаларни прогноз қилишда сейсмопрогноз кузатувларни сифатини сезиларли оширади.
    lyruiri vvri 11 v j i\j jui j ujiu|jiiii vrivjyui iiiiii vvjMJiuy;in vluii
    Татбиқ этиш даражаси ва иқтисодий самарадорлиги: Ишлаб чиқилган усул Узбскистоннинг барча гео динамик полигонларидаги рсжимли кузатувлар амалиётига тадбиқ этилган ва Озарбайжон, Қирғизстон, Арманистон, Туркманистондаги турдош ташкилотларда қўлланилади. Улар шунингдек УзР ФА Сейсмология институтининг хафталик Прогноз комиссияси маълумотларида қўлланилиб, унинг натижалари ва хулосалари Узбекистан Рсспубликаси Фавқулодда вазиятлар вазирлигига юборилади.
    Қўлланиш (фойдаланиш) сохаси: Геофизика, сейсмология, зилзилаларни прогноз қилиш, келгусидаги зилзилалар зоналарини аниклаш.

    Nasriddin Ziyavuddinov
    1-22
    43   19
  • Subject of research: The earth crust of the Southern Uzbekistan.
    Purpose of work: determination of the particularities of geological-geophysical factors of modem activity of the Southern Uzbekistan earth crust and their relationship with seismicity.
    Methods of research: complex analysis of data obtained using geological-geophysical, geodetic and seismological methods, directed for creating integral maps of the factors to modem activity of the earth crust.
    The results obtained and their novelty: created up new and digitized available maps of the factors to modem activity of the earth crust and created their database; the intcrcoupling of the integral factors to modem activity of the earth crust arc revealed, as well as them with seismicity; created up new map to modem activity of the Southern Uzbekistan earth crust.
    Practical value: created up generalized forecast map of the places of the probable arising the earthquakes in South Uzbekistan. In the future this information can be goal-directed used for creating different scale maps of seismic zoning, as well as at estimation of gcodynamic situations and seismic hazard.
    Degree of embed and economic effectivity: works arc introduced to: Ministry on exceeding situation of the Republic Uzbekistan, Central aero geodesic enterprise, ООО "Khandiza Services".
    Field of application: modem gcodynamics, scismotectonics, earthquake prediction, seismic zoning.

    Ilkhom Alimukhamedov
    1-19
    42   28
  • Subject of research: moleskin and efire alleged factions, ethyl and izoamile alcohols, cretonne alleged, foamy, copper-molybdic ore, spume.
    Purpose of work: reception, study characteristic and using import substituting spume for flotation enrichments copper-molybdic ore.
    Methods of research: physic-chemical and chemical tests, IR-spectroscopic, PMR- study, paper chromatography, mathematical and steady-state analysis.
    The results obtained and their novelty: on base individual material, as well as secondary raw materials resource local chemical production is received row superficially an active material (PVA), explored their characteristic (spume, superficially-active, efficiency spume action under flotation enrichment copper-molybdic ore and others), characteristic solution, as well as possibility of the efficient practical application as spume under flotation an enrichment sulfide ore.
    Practical value: synthesized PAV recommended for practical application under flotation enrichment copper-molybdic ore as efficient import substituting foamy reagent.
    Degree of embed and economic affectivity: efficiency of the using synthesized PAV as foamy under flotation enrichment copper-molybdic ore practiced in condition JSC "Almalyk is blazed-metallurgical combine", are received positive results. Expected annual economic effect from introducing the development will form on reagent TMSB 900 mln.sum/year, and on EAFK 740 mln.sum/year, it will provide import substituting and spare exchange facilities of the Republic.
    Field of application: is blazed-metallurgical industry.

    Shukhrat Bukhorov
    1-27
    68   23
  • Subjects of research: the gold-sulphidc-arscnious deposit of Daughyztau in Western Uzbekistan.
    Purpose of work: studying Au-forms, the typomorphic peculiarities of pyrite and arsenopyrite in the primary ores for development of prospectingestimating critcrions for the gold ores of daughyztau type.
    Methods of research: traditional methods of a mineralogical investigation, EMP and XR-structural analyses.
    The results obtained and their novelty: 1) a number of new minerals were established for the first time for the deposit; 2) the typomorphic crystallochcmical peculiarities of the pyrite and arsenopyrite were investigated; 3) the new morphotypcs of the productive sulphides and Au-content in them were studied; 4) the mctamorphogcnic-hydrothcrmal pyritc-sulphoarscnidc microassociation was detected; 5) prospecting-estimating critcrions for the gold orcs of daughyztau type have been elaborated.
    Practical value: the results of the investigation can be applied into the practical activity of geological exploration and as a basis for the development of the method of refractory ores dressing.
    Degree of embedment: the results of the research have been given to SE SIC “The geology of precious and colored metals”, SE “Daughyztau GE” and IMR for a practical appliance
    Field of application: geology branch of science and production.

    Margarita Kim
    1-25
    94   31
  • Subject of research: monocrystal samples of silicon of mark КДБ - 2, 5, 10, 100 which have been doped impurity atoms of manganese.
    Purpose of work: working out of technology of reception of silicon with nanoclusters impurity atoms of manganese with steer able charging condition status and the magnetic moment, and also research of their properties and definition functional possibility for usage of such materials in modem electronics.
    Method of research: electric, photo-electric methods, device of an electron spin resonance (ESR), atomic force and infra-red microscopes were used.
    The results obtained and their novelty: for the first time effects arc found out: it is anomalous high-tcmpcraturc negative magnetoresistance, giant impurity photoconductivity in the field of A.=1,54-8 microns, it is anomalous infra-red quenching of photoconduction. Laws of change obtained effects from size electric arc established and magnetic field, temperatures intensity of lighting.
    Practical value: the technology of reception of silicon with nanoclusters atom of manganese steer able charging condition status and concentration is developed. Possibility of creation on the basis of silicon with magnetic nanoclustcrs new type sensitive magnetic sensors, on the basis of NMR and IR photodetectors working is shown at presence enough high levels of background light.
    Degree of embed and economic effectivity: the results received in work can be introduced on Open Society "PHOTON" and on chair «Electronics and microelectronics» TSTU in educational process.
    Field of application: the microelectronic industry, in area use renewed energy sources.

    Giyosiddin Mavlonov
    1-19
    59   19
  • Subjects of the inquiry: different types of minerals, ores, sorts of industrial enterprises and manufactures and also standard samples of steels, colour metallurgy and other materials.
    Aim of inquiry: elaboration of methods of amperometric and conductometric determination of the Pt(IV), Pd(II) и Au(III) by solution of thioacetamide on different by acid-base properties of phone electrolytes and buffer mixtures with high metrological characteristics and analytical parameters. Practical realization of elaborated electrochemical methods to analysis of some real natural objects and industrial materials.
    Method of inquiry: potentiostatic culonometry, chemical methods,
    conductometry, polayrographiya, voltamperometry, amperometric titration.
    The results achieved and their novelty: voltamperometric behavour of thioacetamide and it's metallocomplexes on the platinium microdisk anode on different by nature and concentrations buffer solutions and phone electrolytes was investigated. Nature of limited anode currents and number of electronodonation oxidation of one molecule of thioacetamide were determinated and also the conditions of Pt(IV), Pd(II) и Au(III) determination by it's solution were optimized. On the base of obtained data the possibility of using of elaborated electrochemical methods to analysis of some real objects and industrial materials was shown.
    Practical value: the possibility of amperometric and conductometric titration of Pt(IV), Pd(II) и Au(III) in model binary, triple and more complex mixtures imitating real natural objects and industrial materials by to using of different by nature and concentration phone electrolytes and buffer mixtures and high - sensitive reagent -thioacetamide was shown.
    Obtained results have allowed to realize a choice of rational way of analysis of different by composition shlams, tails, standart samples and alloys, jewelry articles and others materials.
    Degree of embed and economical effectivity: obtained experimental data by electrochemical titration of Pt(IV), Pd(II) и Au(III) by thioacetamide solution were tested and proposed to practical introduction in practices of analysis of laboratories Almalik mining - metallurgical combinate, Dehkanabad potassium facture of Kashkadarya region and also in educational process for bachelors and magistrs of inorganic and analytical chemistry of chemical faculty of NUUz after name M. Ulugbek, department on chemistry and chemical technology of Navoiy state mining institute, department of analytical chemistry of Samarkand state university after name A. Navoiy and department of chemistry-ecology and methodic of it's teaching of the Djizzak State pedagogical institute of the name A. Kodiriy.
    Sphere of usage: analytical and physical chemistry, electrochemistry, protection of objects of environment, medicines, composition control of industrial materials and natural objects.

    Zukhra Yakhshieva
    1-24
    49   8
  • Subject of the research: new lands forms in the old place of Aral and territories with the sea deflection in the Eastern part of the sea.
    Purpose of work: scientific analyses of dry land wich forms in old place of Aral as an individual natural geographic region.
    Methods of research: software of GIS technology programs of “Mapinfo” and “CorelDRAW”, palcogcographycal, historical, cartographical, aero cosmic, divide into districts.
    The results obtained and their novelty: sor the first time:
    - dry land bottom of Aral given as independent unit as - Aral natural-geographic
    area.
    - created a map of landscape-typical units and natural-geographic district. Define
    33 aspects of landscapes belong 2 kinds, 3 groups, 1 undertype, 1 type and 1 form.
    - natural-geographic district look as scientific bases of regional natural-
    geographic research.
    Practical value: main results of research can use in elaboration for preservation and rational using of natural resources of dry land bottom of Aral, and also helps to reading some courses by natural geography of Central Asia and Karakalpakistan.
    Degree of embed and economic effectivity: materials and results of these dissertation now using in study courses of National University of Uzbekistan named by Mirzo Ulugbek, Karakalpak Stat University named by Bcrdakh, in committee of nature preservation of Republic of Karakalpakistan in elaboration measures to rational using of natural resources.
    Field of application: in preservation and rational usage of natural resources, in GIS technology and higher educational institutions.

    Rana Ibragimova
    1-25
    47   12
  • Subjects of the inquiry: The geographical peculiarities of the names of population spots and the area toponyms of Djizak Region.
    Aim of inquiry: Develop scientific-practical recommendations on regulations of region oykonims on the grounds of the analysis of area peculiarities in formation of geographical names.
    Methods of inquiry: Geographical contrasting, historical comparison, etymological analysis, experiment, etc.
    The results achieved and their novelty: Research includes learning of effects of economic- social geographical peculiarities of area on formation of place names; rules of naming of population residence areas and their geographical features have been identified. The differences among the names of population residences situated on mountain and desert territories have been analyzed and elucidated within district scales; oykonims of Djizak region have been for the first time learned through lingo-geographical point; there have been made some recommendations on naming new developing population residence places in the region.
    Practical value: Research results can be applied in naming population residence places of the region, in creating new place names and in national standardization and transcription of toponyms. Besides, the analytical results and methodological issues are also of much significance in the teaching process of Higher Education.
    Degree of embed: The main results, recommendations and summaries have been accepted for usage by toponymy commission under Djizak region authorities. The data and the scientific attitudes of the thesis are being applied in teaching toponymy in Djizak State Pedagogical Institute.
    Sphere of usage: Djizak Region, City and District Authorities; Higer Educational Institutions.

    Қuchkor Ҳakimov
    1-25
    35   16
  • Subjects of research: sedimentary cross-section, including Jurassic rocks complexes of Bukhara-Khiva and South-West Gissar regions.
    Purpose of work: studying laws of traps formation, factors influencing on their efficiency, priority directions of GRR on oil and gas; methods of increase of their efficiency.
    Method of research: the complex approach to studying conditions of Cenozoic deposits accumulation, histories of regions development in Mesozoic and, laws of traps formation and oil and gas deposits.
    The results obtained and their novelty: at the decision of questions connected with work subjects, on the basis of the actual data necessity of allocation in Kugitang complex of carbonaceous rocks of early Kugitang and upper Kugitang series has been proved. The traps connected with bioherm and reeves on carbonaceous shallow and in zone of not compensated warping, arc dated to upper Kugitang series, they arc practically all productive. On series of palcotcctonic maps from Jurassic tcrrigcnc thicknesses to neogcnc-quartcmary the inherited development of anticlinal folds with which industrial HC deposits arc connected is observed. They make near one fifth part of all studied traps. Other folds of Neogene origin stage - unproductive.
    Practical value: delineation of concrete perspective sites and structures, substantiation of zones of primary development of gas and oil and gas congestions in Jurassic carbon bearing thickness. Essential expansion of the area of high perspective earths; ways of increase of geologic-economic efficiency of GRR by preliminary forecasting of traps efficiency arc planned.
    Degree of embed and economic effectivity: maps of prospects, palcotcctonic maps on Jurassic carbon bearing thickness, connected with estimation of forecasting resources of HC and substantiation of works directions were used at drawing up of programs in directions of GPW. Concrete recommendations arc transferred to Open Society "Uzbekgeophysika", to Bukhara and Yakkabag branches of geophysical expeditions. Revealing and preparation of the structures, containing industrial HC congestions became their result.
    Field of application: a choice of priority directions of GPW for oil and gas in territory of «Uzgcobumcftcgaz» S.C. activity.

    Ashat Nugmanov
    1-46
    78   30
  • Subject of the research: this research’s object is government’s politics on social development in the villages of Uzbekistan’s southern regions during Uzbekistan’s Independence.
    Purpose of work: Uzbekistan’s social politics in the villages of southern regions during Indcrcndcnce and accomplished practical works on cultural spheres. Analyzing their results and making conclusions.
    Methods of research: while carrying out this research following characters were in use: historicalness, scientific impartiality, running collected materials, historical-comparative analyses.
    The results achieved and their novelty: in the Kashkadarya and Surkhandarya (1991-2008) regions’ social and cultural state, appeared complications in this field, oppositions, and social living conditions learned, analyzed and sufficient conclusions implemented.
    Practical value: dissertation information and conclusions could be applicable to do research on Uzbekistan’s history science problems, upbringing generation in a patriotic manner, epistle, and monograph in Uzbekistan’s history science and to write textbooks and learning method manuals.
    Degree of embed and economic effectivity: the dissertation’s main content emphasized and reflected bu the author the dissertation, they arc: 4 printed scientific articles, 1 methodical handbook, and 7 attended conferences.
    Field of application: the research attainments give the opportunity to use the research achievements to establish information about studying Uzbekistan’s Indcrcndcnce period, printing, and providing.

    Charos Temirova
    1-31
    24   18
  • Subjects of research: paleogene sedimentary formations of Kyzyl Kum.
    Purpose of work: comprehensive study of the conditions of deposition and composition of sedimentary formations of Paleogene of Kyzyl Kum with definition of key stages in the evolution of a sedimentary basin, establishing patterns of facies changes in units of time and space and the identification of a genetic connection with the formation of mineral deposits.
    Methods of research: stage dynamic principle of facial analysis of sedimentary formations and the complex layering and biorhythmostratigraphical differentiation and correlation of the sections, facial analysis of differentiation of sediment on a range of hydrochemical conditions defining the hydrochemical composition of the water basin, reductive-oxidative and acid-base indicators.
    The results obtained and their novelty: identified five stages of evolution of the Paleogene sedimentary basin. It is established that the change of transgressions and regressions of Paleogene marine basin is related to global causes - of eustatic changes in sea level. Clarified biorhythmostratigraphical definition and correlation of Paleogene sections of the region. Selected dynamic facial units. For the first time identified: sulfate-dolomite chemical, calcareous biochemical and bentonite physical-chemical facies, reflecting the specific environmental conditions of sedimentation.
    Practical value: opened deposits of alkaline bentonite and carbonate palygorskite clays of Navbahor, white mealy dolomites of Vaush, manifestations opoka clays Kokcha, pelitomorphic dolomites of Amantaytau.
    Degree of embed and economic effectivity: on the basis of Navbakhor deposit built a plant of mud powder with capacity of 40 tons per year. Products manufactured by the enterprise are the import- and export-oriented.
    Field of application: regional forecast on the basis of stratigraphic, facies, mineral and geochemical criteria, the search and evaluation of deposits of non-metallic materials.

    Abdurazak Mirzaev
    1-38
    45   27