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A New Tectonic Model of Cretaceous East Asia: Role of Mantle Plume
백악기 동아시아 신지구조 모델: 맨틀 플룸의 역할
Econ. Environ. Geol. 2019 Oct;52(5):337-45
Published online October 31, 2019;  https://doi.org/10.9719/EEG.2019.52.5.337
Copyright © 2019 the Korean society of economic and environmental gelology.

Changyeol Lee*
이창열*

Department of Earth System Sciences, Yonsei University, Seoul 03722, Republic of Korea
연세대학교 지구시스템과학과
Received September 6, 2019; Revised October 1, 2019; Accepted October 1, 2019.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
 Abstract
The hypothesis of ridge subduction which explains the Cretaceous igneous activities in East Asia including China, Korea and Japan, has been widely accepted in the society. Especially, the hypothesis explains the southwest-tonortheast migration of the Cretaceous adakite emergence in Southwest Japan. However, the hypothesis has several issues because the geochemical analyses and plate reconstruction model are not consistent with the consequences of the ridge subduction. To resolve the issues, a new hypothesis of the plume-continent and plume-slab interaction is suggested, which explains the igneous activities during the Cretaceous. In this review, I briefly introduce the two hypotheses and suggest an additional future study to prove the new hypothesis.
Keywords : Cretaceous, igneous activity, ridge subduction, plume-continent and plume-slab interaction

 

December 2019, 52 (6)