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Formation and Crust-Mantle Geodynamic Processes of the Neoarchean K-Rich Granitoid Belt in the Southern Range of Eastern Hebei-Western Liaoning Provin

Formation and Crust-Mantle Geodynamic Processes of the Neoarchean K-Rich Granitoid Belt in the Southern Range of Eastern Hebei-Western Liaoning Provin

Paperback

Series: Springer Theses

ChemistryGeologyPhysics

ISBN10: 9811943974
ISBN13: 9789811943973
Publisher: Springer
Published: Aug 25 2023
Pages: 341
Weight: 1.10
Height: 0.74 Width: 6.14 Depth: 9.21
Language: English
Meso- to Neoarchean is a critical transitional period for the formation and evolution of continental crust and the corresponding geodynamic mechanisms, during which the average composition of continental crust gradually shifted from Na-enriched to K-enriched. However, the ultimate source of K and its enrichment mechanism in continental crust are still enigmatic. Moreover, fierce controversies remain on the Precambrian subdivision and late Archean geodynamic models of the North China Craton (NCC). Archean basement terranes in the Eastern Hebei-Western Liaoning Provinces, northern NCC display characteristic lithological zonation similar to those developed in modern convergent plate margins, and from northwest to southeast can be subdivided into the MORB-type tholeiite belt, oceanic arc tectonic belt, and K-rich granitoid belt.

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Geology