Open AccessResearch progress on migration and accretion of Nadanhada terrane
Author(s) -
Guohui Qu,
Ning Liu,
Yang Meng,
Xiunan Li
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/384/1/012120
Subject(s) - terrane , geology , subduction , continental margin , accretion (finance) , paleomagnetism , paleontology , massif , seismology , tectonics , physics , astrophysics
The Nadanhada terrane is the most developed area of Mesozoic marine strata in eastern China. The migration process of the Nadanhada terrane is restored from two aspects of Palaeomagnetism and biopalaeogeography. It is concluded that the subduction of the oceanic plate to the continental margin of East Asia is accompanied by the strong deformation of the sedimentary cover during the growth of the Nadanhada terrane. Under the continuous compressive force generated by the subduction of the oceanic plate to the continental margin of East Asia, accretionary wedges continue to form in the direction of oceanic basin. At the same time, large detachment planes gradually form between accretionary complex and the basement of the Jiamusi massif. The evolution history of the Nadanhada terrane can be divided into five stages: the drift stage, the accretion stage of the continental margin, the bending stage of the terrane structural line, the compression stage of the terrane and the anticlockwise rotation stage of the terrane. Bijin terrane can be seen as the extension of Nadanhada terrane in NNE direction.