Diversity of magmas as a result of Earth's hot accretion
Автор: Shkodzinskiy V.S.
Журнал: Вестник геонаук @vestnik-geo
Рубрика: Научные статьи
Статья в выпуске: 2 (302), 2020 года.
Бесплатный доступ
Modern evidences of hot heterogeneous Earth accretion explain problems of genesis of geospheres, magmas and magmatic rocks. Fractionation of magma ocean caused the crust formation from the top acid layer and mantle from the lower mafic layers. Ascending residual melts from different layers of magma ocean formed different magmatic rocks on ancient platforms in sequence granite - autonomous anorthosite - basites - alkaline rocks and carbonatite - kimberlite. Ascending mantle substance, heated by the core, formed huge superplumes and modern geodynamic settings in Phanerozoic. Eclogites was formed by the melt compression crystallization in the impact craters on the bottom of magma ocean. Their decompression melting in ascending plumes formed ocean basites and traps. Friction melting of product of magma ocean differentiation formed magmas of subduction and collision areas.
Hot heterogeneous accretion, magma ocean, magma genesis
Короткий адрес: https://sciup.org/149129415
IDR: 149129415 | DOI: 10.19110/geov.2020.2.3