Igor Vasilyevich Litvinenko belonged to the generation that had a difficult and worthy fate to bear on their shoulders the hunger and Stalinist repression of the 190-1940s, to overcome all the bloody hardships of the Great Patriotic War and to win the victory, paying for it an incredibly bitter price. The generation, whose labor wa3s restored the country.

The year 1927 was coming to an end. The country of the Soviets was overcoming the devastation of the world and civil wars. On the agenda was set the issue of development of the national economy, primarily heavy industry. For this purpose new fields were needed, they had to be found quickly and economically ...

Small intrusions and extrusive formations, represented by montschikites, picritic porphyrites, camptonites, analcime basaltoids, monzonites and their transitional varieties, are widely developed within South Gissar. They occur among the Upper Paleozoic granitoids of the Gissar batholith and volcanogenic strata of Lower Permian age.

Head of the Department of Geochemical and Radioactive Exploration Methods, Professor, Doctor of Geological and Mineralogical Sciences Nikolai Konstantinovich Morozenko was a communist, a major scientist, one of the best experts in the geology of rock crystal deposits and natural riches of Central Asia, Pamir and Altai.

As a rule, works considering the geochemical specialization of rocks concern intrusive formations and mainly granitoids, since they dominate the lithosphere and are naturally the most thoroughly and comprehensively studied. It seems interesting to analyze the geochemical specialization of the main effusives (basalts) of some areas of the Pacific ore belt, mainly from the point of view of its relation to the tin content of the region.

The studied areas of mountainous taiga terrain are developed mainly by eruptive rocks of granitoid series. All sites are located in a typically humid zone. The valleys of rivers and springs are forested, often swamped, channel sediments contain abundance of organic matter in the form of fallen leaves, needles, etc. The relief is medium-sized, but rather strongly indented. Exposedness is poor, eluvial-deluvial deposits of medium clastic character with a small (up to 20 cm) soil layer. The thickness of loose formations usually does not exceed 2-3 m. Flat tops are often swamped.

The compilation of geochemical maps should be preceded by a clear formulation of the concept of geochemical map. As it is known, there are different points of view and different understandings of map construction and practically there is no experience in making polyelemental geochemical maps.Under geochemical the authors understand a map that reflects the content, character of distribution and form of finding a wide range of chemical elements in the bedrock. Such a map should be one of the main in the creation of metallogenic and prognostic-geological maps ...

The study of distribution patterns of element concentrations in rocks, ores and minerals is one of the main problems of geochemistry. In recent years, more and more works appear, where to the elucidation of distribution patterns are approached from the point of view of probability theory. Most studies are based on the data of chemical and quantitative spectral analyses of samples of eruptive rocks. So far, the huge material of semi-quantitative spectral determinations has been little used for this purpose. Meanwhile, semi-quantitative spectral analysis at the modern level of its performance for a number of elements can provide important geochemical information ...

The techniques of correlation analysis as a method of statistical processing of the results of various determinations are now increasingly widely used in geochemical studies.Correlation analysis is used to assess the nature and strength of the relationship between chemical elements in paragenetic associations. For this purpose, regressions between two elements are most often studied by calculating and assessing the significance of pairwise correlation coefficients r. In the geochemical interpretation of regressions, it is necessary to take into account the possibility of influence on the selected relationships of other chemical elements present in characteristic associations ...

The main methodological issues in geochemical studies are: the determination of absolute concentrations of individual elements, clarification of their paragenetic associations, as well as patterns of distribution of elements depending on the specific geological setting. In this connection there is a necessity to study the companion elements of any minerals, including uranium. Important methodological moments are: processing of stone material, reliability and sensitivity of the applied complex of analyses, methods of statistical processing of results and ways of the most visual representation of the obtained data. Correctly chosen methods of statistical processing and visualization of the material help to reveal essentially important regularities, which can be hidden or not caught behind the abundance of analytical results.

One of the pressing problems of geochemistry is the study of the forms of finding and patterns of distribution of elements in rocks and minerals. Of great interest is the importance and technical possibilities of determining small concentrations of radioactive elements. In recent years, a number of works have been published, mainly devoted to the distribution of radioactive elements in rocks mainly of granitoid composition. Considerably less attention has been paid to metamorphic rocks.

Для успешной интерпретации результатов любой металлометриче­ской съемки (в том числе и по потокам рассеяния) необходимо, кроме учета геологических, геоморфологических и прочих условий, знание мест­ных кларков искомых элементов и их геохимическое поведение в конкрет. ной природной обстановке. Без этого нельзя правильно выбрать «нор­мальное поле», оценить перспективность аномальных концентраций, ис­пользовать с поисковой целью характерные для района парагенетические ассоциации элементов. Особенно острое значение приобретают все эти вопросы на первых этапах поисков: при наземной проверке выявленных аэросъемкой аномалий, при исследовании малоизученных районов, а также при региональных металлогенетических построениях.