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Publications
Scientific publicationsА.В. Бакаева, Т.Н. Назарова, С.А. Светов. Окатанность галек неоархейских полимиктовых конгломератов: расчет и интерпретация (на примере Койкарской структуры, Центральная Kарелия) // Труды КарНЦ РАН. No 2. Сер. Геология Докембрия. 2019. C. 80-87
A.V. Bakaeva, T.N. Nazarova, S.A. Svetov. Roundness of neoarchean polymictic conglomerate clasts: calculation and interpretation (a case study from the Koikary area Central Karelia) // Transactions of Karelian Research Centre of Russian Academy of Science. No 2. Precambrian Geology Series. 2019. Pp. 80-87
Keywords: polymictic conglomerates; roundness; transport; sources of material; Neoarchaean; Central Karelia The method of roundness calculation based on the use of outcrop photos, the CorelDraw software and the PlotCalc plug-in was tested for the case of conglomerates from the Neoarchean molassoid complex of the Koikary area (Central Karelia). According to the results, the roundness of the debris depends on their composition and varies across the section of the molassoid complex. For the clasts of komatiite-basalt and andesitic composition the degree of roundness is the lowest, whereas for plagioporphyrygranites it is the highest. A lateral series of the potential sources of the clastic material is proposed. The mathematical calculation of roundness values is shown to be efficient, so that information can be obtained on the remoteness of the sources of clastic material needed for lithological and geodynamic studies.
DOI: 10.17076/geo953
Indexed at RSCI
Last modified: March 5, 2019
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