Scientific publications

З.П. Рыбникова.

Дифференцированные лавы мезоархейских коматиитов: минералого-геохимическая характеристика, условия излияния и кристаллизации

// Труды КарНЦ РАН. No 2. Сер. Геология Докембрия. 2018. C. 77-90

Z.P. Rybnikova. Differentiated mesoarchean komatiite lava flows: mineralogical and geochemical characteristics, outflow and crystallization conditions // Transactions of Karelian Research Centre of Russian Academy of Science. No 2. Precambrian Geology Series. 2018. Pp. 77-90

Keywords: Mesoarchean; komatiites; differentiated lavas; Fennoscandian shield

The paper presents the results of the study of thin differentiated Mesoarchean komatiite lava flows from the Koikary and Sovdozero greenstone domains. Several zones were recognized in the section of differentiated lava flows: autobreccia, spinifex texture of olivine and pyroxene types, massive, cumulate (ortho- and mesocumulates), as well as the lower chilled contact at the basement of the flow. The stratification of the lava flows is due to magmatic differentiation in situ coupled with the continuing injection of more molten rock until the stage of complete crystallization.

URL: http://journals.krc.karelia.ru/index.php/precambrian/article/view/772

DOI: 10.17076/geo772

Indexed at RSCI

Last modified: February 28, 2018