Magazine «Otechestvennaya Geologiya» (“National Geology”)


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ORGANISATION, CONTROL, ECONOMICS, SUBOIL USE
Germahanov A. A. The principal results of geological exploration for solid mineral resources in 2023 and the planned activities for 2024
DOI:10.47765/0869-7175-2024-10006

The Federal Subsoil Resources Management Agency, Moscow

Analysis is performed for the results of geological exploration for solid minerals in the Russian Federation in 2023, funded by both the federal sources and miners. The activities for 2024 are planned.

Key words: mineral base, licensing, subsoil resources, reserves growth, solid minerals.

Alekseev Ya. V., Korchagina D. A., Kulikov D. A., Naumov E. A., Konkin V. D., Migachev I. F., Donets A. I., Baryshev A. N. Peculiarities of the development and reproduction of the Russian lead and zinc mineral resource base and its forecasting for up to 2040
DOI:10.47765/0869-7175-2024-10007

Federal State Budgetary Institution "Central Research Institute of Geological Prospecting for Base and Precious Metals" (FSBI "TSNIGRI"), Moscow

The state and structure of reproduction of the lead and zinc mineral resource base are shown for the period of 1993‒2022, and a forecast of its development for up to 2040 is presented. The mineral reserves movement and redemption were analyzed with account made for the mineral deposit types. The risks and limitations were identified that affected the mineral resource base sustainability. The need is justified to increase the early phase geological exploration at the expense of the federal budget funds to prepare the forecasted resources and to create an “exploration reserve” for lead and zinc.

Key words: mineral resource base, lead, zinc, mineral reserves, production, redemption, reserve growth, forecast, resource potential.

METALLIFEROUS AND NONMETALLIFEROUS MINERAL DEPOSITS
Ladny O. S. Geological-structural position and genesis of the Sovinoe gold ore deposit in Chukotka
DOI:10.47765/0869-7175-2024-10009

AO “Elkonsky GMK”, Moscow

The localization conditions for the large Sovinoe gold-quartz deposit were clarified based on results of the geological exploration. It has been ascertained that the vein- and stockwork-type ore bodies are confined to gentle ttectonic nappe zones in sites where they are crossed by steeply dipping faults. Ore deposition occurred under conditions of long-term tectonic movements, with participation of gold-bearing fluids enriched in methane and carbon dioxide, coming from deep-seated magmatic chambers at the stage of the orogen activation. The fluid flow was confined to deep-seated faults and represented the main factor for the transformation of tectonized terrigenous-sedimentary rocks into carbonaceous shales and for the formation of quartz-veined gold mineralization.

Key words: Sovinoe gold-quartz deposit, fluid flow, gold mineralization, faults.

Chuguevskaya E. A.The methodological aspects and limitations of using the chemical composition of chrome spinels in forecasting and prospecting for diamond deposits (the case of the Alymdzha River basin, Yakutia)
DOI:10.47765/0869-7175-2024-10010

Vilyuiskaya Geological Exploration Expedition of AK ALROSA (PJSC), Aikhal, Republic of Sakha (Yakutia)

A methodology is proposed for studying chrome spinels during diamond prospecting, with the use of variations in the chemical composition of the minerals belonging to different genetic groups in order to distinguish the kimberlite and non-kimberlite varieties from a polygenic association. The recommended succession of investigation of the chrome spinels will help to avoid mistakes in identifying the peculiarities of their chemistry and will facilitate to clarify the forecast when searching for new kimberlite bodies.

Key words: kimberlites, chrome spinels, paragenesis, placer.

INFORMATION
Sagalevich A. M. Lake Baikal exploration using deep manned submersibles
DOI:10.47765/0869-7175-2024-10011

Shirshov Institute of Oceanology of Russian Academy of Science, Moscow

The article considers results of studying Lake Baikal using the Deep manned submersibles (DMV) "MIR-1" and "MIR-2", which were carried out during 2008‒2010. Data on the geological structure of Baikal and its biological activity are presented, that are based on the visual observations of scientists and on results of the measurements and analyzes of samples.

Key words: words: deep manned submersibles, scientific research of Lake Baikal, gas hydrates.

MEMORABLE DATES

In memory of ore deposit explorer Yuri Ivanovich Novozhilov

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