A Neoarchean–Proterozoic Supercontinent (~2.8–0.9 Ga): An Alternative to the Model of Supercontinent Cycles
- 作者: Mints M.V.1
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隶属关系:
- Geological Institute
- 期: 卷 480, 编号 1 (2018)
- 页面: 555-558
- 栏目: Geology
- URL: https://ogarev-online.ru/1028-334X/article/view/192996
- DOI: https://doi.org/10.1134/S1028334X18050045
- ID: 192996
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详细
The model of supercontinent cycles is revisited on the basis of reevaluation of existing ideas on the geodynamics and tectonics of granulite gneiss belts and areals. Granulite-gneiss belts and areals of a regional scale correspond to mantle–plume (superplume) activity and form the major components of intracontinental orogens. The evolution of geodynamic settings of the Earth’s crust origin can be imagined as a “spiral sequence”: (1) interaction of mantle plumes and “embryonic” microplate tectonics during the Paleo- Mesoarchean (~3.80–2.75 Ga); (2) plume-tectonics and local plume-driven plate-tectonics within supercontinent during Neoarchean and Proterozoic (~2.75–0.85 Ga); (3) plate tectonics in the Phanerozoic along with a reduced role of mantle plumes starting from ~0.85 Ga.
作者简介
M. Mints
Geological Institute
编辑信件的主要联系方式.
Email: michael-mints@yandex.ru
俄罗斯联邦, Moscow, 119017
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