ABOUT

• History and activity
• Structure
• Scientific employees
• Employees who worked
• Projects
• International projects
• Developments
• Gender Equality Plan
• Academic сouncil
• Specialized academic council
• Council of young scientists
• Ukrainian Mineralogical Society
• Committee on meteorites
• Postgraduate studies, doctoral studies
• Center for collective use
• Mineralogical Museum named after Academician V.I. Vernadsky
• Contacts

PERIODICALS

• Геохімія та рудоутворення
• Мінералогічний журнал
• Записки Українського мінералогічного товариства

INFORMATIONAL
MESSAGES

• Exhibition
• Defense of dissertation
• Conference
• Scientific readings
• Director elections
• Vacancies
• Solemn meeting of the Academic Council
• Popularization in mass media
• Lecture, seminar

Local forecast and criteria for selection of potentially diamond-bearing rocks within the northwestern part of the Ukrainian shield

ABSTRACT

Report on the SRW: 121 pages, 29 figures, 64 sources.

Objects of research are satellites of diamond from terrigenous deposits and alkaline-ultrabasic rocks. Geochronology of Paleoproterozoic rocks and fault tectonics of the Novohrad-Volynskyy block.

The purpose of the work is to locate areas for searching of kimberlites and alkaline-ultrabasic rocks.

Research methods are mineralogical, isotopic-geochemical, local X-ray spectral.

The results of the study of mantle minerals, accompanying diamond, from the terrigenous deposits of the Novohrad-Volynskyy block are presented. It is shown that in terms of chemical composition and other features, they are similar to minerals of the same name from kimberlites of different provinces of the world. Minerals of the same composition in the form of xenocrysts were found in the alkaline-ultrabasic rocks of Bolyarkivska and other intrusions, which allows us to consider the latter as transporters of diamond-related minerals from the upper mantle to the earth's surface. Using modern methods, the isotopic age of plagiogranites of the Sheremetyevsky complex (2090-2150 Ma), alkaline-ultrabasic rocks of the Gorodnytskyy complex (2010-2050 Ma), gabroids of the Bukynskyy complex (1993-1999 Ma), granites of the Zhytomyrskyy complex (2067- 2081 Ma).

It has been established that the intrusions of alkaline-ultrabasic rocks are related to the northeast-trending mantle faults and nodes of their intersection with the deep faults of the Sarnensko-Varvarivska riftogenic structure. Two promising areas for the search for new bodies of alkaline-ultrabasic rocks and kimberlites have been identified.

Authors:

Other authors:

Tsymbal S.M, Shumlyanskyy L.V., Tsymbal Yu.S.

Keywords:

Diamond satellites, terrigenous deposits, alkaline-ultrabasic rocks, deep faults, Novograd-Volynskyy block, Ukrainian shield

Head of the research:

Shcherbak Mykola Petrovych

Registration Card (RC):

0113U003381

Execution period of the research:

2013 - 2015