25 Result(s)

Article

The Jurassic–Cretaceous K-rich Volcanism of the Nercha Depression in Eastern Transbaikalia and Its Geodynamic Nature

The geochronological, geochemical, and Sr–Nd isotopic features of the Late Mesozoic volcanic rocks associated with the development of the Nercha Depression in the Eastern Transbaikalia are presented. The struc...

A. A. Vorontsov, E. N. Federyagina, S. I. Dril, S. A. Sasim… in Doklady Earth Sciences (2024)

Article

Formation of Gold Mineralization under Amphibolite Facies Metamorphism: Ykan Deposit (Baikal–Patom Belt)

Black shale sequences whose metamorphic grade exceeds the regional greenschist facies are considered by most researchers exclusively as promising for alluvial gold. The paper reports the results of a study of ...

A. E. Budyak, Yu. I. Tarasova, A. V. Chugaev… in Russian Journal of Pacific Geology (2024)

Article

Ore Mineralization of the Ozherel’e Deposit: Comparison with Sukhoi Log–Type Objects

In addition to the widely known large-volume Sukhoi Log–type gold deposits (e.g., Sukhoi Log, Verninskoe, etc.), the Lena gold province also hosts a series of objects that differ significantly in thte stratigr...

A. E. Budyak, Yu. I. Tarasova, Academician N. A. Goryachev… in Doklady Earth Sciences (2023)

Article

The Role of Metallogenic Research in Predicting Promising Territories: From Models to Objects

The possibilities of academic basic metallogenic research in the forecast and search for various types of ore deposits are shown with the example of various academic institutes in the Siberian and Far East fed...

N. A. Goryachev, V. Yu. Fridovskii… in Herald of the Russian Academy of Sciences (2023)

Article

Indicator and Isotope Geochemical Characteristics of Iron Sulfides from the Golets Vysochaishy Deposit, East Siberia

This paper provides new data on various pyrite and pyrrhotite generations at the Golets Vysochaishy gold deposit, Bodaibo district, Irkutsk Oblast. These generations are distinguished by morphological, geochem...

Yu. I. Tarasova, A. E. Budyak, A. V. Ivanov, N. A. Goryachev… in Geology of Ore Deposits (2022)

Article

Typomorphism of Pyrite from the Ugakhan Gold Deposit (Baikal–Patom Highlands)

The results of studying the isotopic, geochemical, and TEDS properties of various generations of pyrite and pyrrhotite from the Ugakhan deposit, Bodaibo district of Irkutsk region, are presented. Differences i...

Yu. I. Tarasova, A. E. Budyak… in Doklady Earth Sciences (2022)

Article

Sulfoarsenic Mineralization with Gold in the Shear Zone of the Eastern Transbaikalia Branch of the Mongol–Okhotsk Suture (Pogromnoye Deposit, Eastern Transbaikalia, Russia)

The Pogromnoye Deposit related to gold–sulfide-quartz formation of the veinlet-disseminated ore type was formed in the shear zone that occurs between overthrusts in the block confined to the volcanogenic–sedim...

N. V. Vilor, M. G. Volkova, A. E. Budyak… in Russian Journal of Pacific Geology (2021)

Article

Evolution of the Kara Ore-Magmatic System (Eastern Transbaikalia, Russia): Experience in Applying Small-Scale Geochemical Survey

The article discusses a novel methodological approach to deciphering the evolution of ore-magmatic systems (OMS), based on the study of geochemical fields associated with different stages of the evolution of t...

S. V. Efremov, A. M. Spiridonov, N. A. Goryachev, A. E. Budyak in Geology of Ore Deposits (2021)

Article

Variations of the ²³⁸U/²³⁵U Isotope Ratio in Metasedimentary Rocks and Evidence of Changes in Sedimentation Conditions during the Ediacarian Period of the Neoproterozoic

The isotopic composition of uranium is a new geochemical indicator that facilitates reconstruction of the redox conditions of geological processes. In this paper the results of study of the ²³⁸U/²³⁵U isotope rati...

A. V. Chugaev, Academician I. V. Chernyshev, A. E. Budyak… in Doklady Earth Sciences (2019)

Article

A Case History of Applying In situ Analysis of the Sulfur Isotopic Compositions of Sulfides from Ores of the Largest Deposits in the Bodaibo Synclinorium (Eastern Siberia)

The experience of applying the laser ablation technique to study the sulfur isotopic compositions of pyrite and arsenopyrite samples from gold deposits of the Baikal–Patom highland is discussed. The experiment...

Corresponding Member of the RAS N. A. Goryachev, A. V. Ignat’ev… in Doklady Earth Sciences (2019)

Article

Common Neoproterozoic–Early Paleozoic Evolution of Ore-Bearing Sedimentary Complexes in the Southern Siberian Craton

A comparison of the lithological–geochemical parameters for the deposits of the Dalnetaiga series of the Bodaibo synclinorium (the Buzhuikhta and Khomolkho formations) and the Olokit structural-formational zon...

A. E. Budyak, S. Yu. Skuzovatov, Yu. I. Tarasova, Kuo-Lung Wang… in Doklady Earth Sciences (2019)

Article

Isotopic (Sm–Nd, Pb–Pb, and δ³⁴S) and Geochemical Characteristics of the Metasedimentary Rocks of the Baikal–Patom Belt (Northern Transbaikalia) and Evolution of the Sedimentary Basin in the Neoproterozoic

This paper reports the results of a detailed isotopic (Sm–Nd, Pb–Pb, and δ³⁴S) and geochemical studies of Neoproterozoic metasedimentary rocks from the Patom and Bodaibo domains of the Baikal–Patom belt (northern...

A. V. Chugaev, A. E. Budyak, I. V. Chernyshev, E. O. Dubinina, B. I. Gareev… in Petrology (2018)

Article

Occurrence Forms of Carbon, Sulfur, and Noble Metals in Deposits of the Black-Shale Formation by the Example of the Degdekan Gold-Ore Deposit (Northeastern Russia)

Pyrite crystals and ore-bearing shales of the Degdekan deposit were studied by means of XPS, SEM–EDX, EPMA, and AAS. Five peaks of carbon organic forms were identified, conforming to polymer compounds containi...

V. L. Tauson, R. G. Kravtsova, V. V. Akimov, S. V. Lipko… in Doklady Earth Sciences (2018)

Article

Geoinformation Modeling of Sulfide Frost Weathering in the Area of Udokan Deposit

The developed geoinformation technology based on the experimental and computer-aided physicochemical modeling enables quantitative calculation and map** of aftereffects of geochemical processes in sulfide ma...

V. A. Abramova, A. V. Parshin, A. E. Budyak, A. P. Ptitsyn in Journal of Mining Science (2017)

Article

Geochemical controls on the formation of unconformity-type Au–U deposits (Northern Transbaikalia)

This study provides geochemical, mineralogical, and isotope data for rocks and ores from Lower Proterozoic black shale formations of the Kodar–Udokan structural and formational zone, which host the Khadatkanda...

A. E. Budyak, A. V. Parshin, A. M. Spiridonov, V. N. Reutsky… in Geochemistry International (2017)

Article

Sources of clastic material of the Neoproterozoic metasedimentary rocks of the Baikal–Patom belt, Northern Transbaikalia: Evidence from Sm-Nd isotope data

First systematic data on the variations of ε_Nd(T) in the Neoproterozoic sedimentary sequence of the Baikal–Patom fold belt (Northern Transbaikalia) are reported. The range of obtained εNd(T) is–19.4…–2.0. It was ...

A. V. Chugaev, A. E. Budyak, I. V. Chernyshev, K. N. Shatagin… in Geochemistry International (2017)

Article

Geodynamic background for large-scale mineralization in the southern environs of the Siberian Craton in the Proterozoic

The geodynamic position of the productive Kevaktinskii and Dal’netaiginskii stratigraphic units with Au–U mineralization is considered within the Baikal–Patom highland. The Au–U specialization of rocks of the ...

A. E. Budyak, N. A. Goryachev, S. Yu. Skuzovatov in Doklady Earth Sciences (2016)

Article

New results of geochemical and geophysical studies of the Khadatkandskii fault zone (North Transbaikal region)

The study objects are the Khadatkandskii fault zone, the Khadatkanda gold–uranium deposit confined to it, and sediments of the Kodar (Ikabi, Ayan, and Inyr formations) and Chinei (Chitkanda, Aleksandrovka, and...

A. E. Budyak, A. V. Parshin, B. B. Damdinov… in Russian Journal of Pacific Geology (2015)

Article

Geochemistry of dispersed organic matter in gold-ore deposits of black shale formations

Bitumens from carbonaceous shales of various ages of the Baikal-Patom highlands and the Degdekan deposit (Yana-Kolyma folded system) were considered. It was determined that bitumens of the Bodaibo synclinorium...

A. E. Budyak, N. A. Goryachev, E. A. Razvozzhaeva… in Doklady Earth Sciences (2015)

Article

Thermodynamic model of the ore stage in the formation of the Sukhoi Log deposit

N. N. Bryukhanova, V. A. Bychinskii, A. E. Budyak in Doklady Earth Sciences (2014)