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7069330 
Journal Article 
Refined chronostratigraphy of the late Mesozoic terrestrial strata in South China and its tectono-stratigraphic evolution 
Li, X; Zhang, C; Li, Y; Wang, Yin; Liu, L; , 
2019 
Yes 
Gondwana Research
ISSN: 1342-937X 
ELSEVIER SCIENCE BV 
AMSTERDAM 
143-167 
WOS:000468246900009 
The late Mesozoic terrestrial strata in numerous basins in S (South) China provide important sedimentary archives to understand the tectonic evolution of S China and East Asia. However, establishing regional stratigraphic framework within a basin and precisely correlating strata among basins remain challenging clue to limited chronological constraints. In this study, we report zircon U-Pb ages of 21 samples and a compilation of 132 reliable age data from 15 type sections of the volcanic -sedimentary basins in S China. The synthesized geochronology allows us to establish a refined chronostratigraphy for the late Mesozoic terrestrial strata. New calibrated results indicate that most of the lithostratigraphic units are diachronic, laterally stacking, and/or interfingering. Six stacking styles are classified for the relationship of lithostratigraphic units. Analysis of the refined chronostratigraphy and the strata! stacking styles, together with lithological composition, reveals three episodes of tectono-stratigraphic evolution. Episode I (-145-125 Ma) is characterized by intense volcanism, as evidenced by widespread occurrence of volcanic strata and (137-120 Ma) A-type granites. and was probably related to the rollback of the subducting Paleo-Pacific plate; The strata deposited during Episode II (-125-100 Ma) are composed of variegated sediments associated with/without volcanic intercalations in sedimentary faulted-depression basins, indicating the waning of volcanism and tectonism attributed to the ending of the Izanagi/Kula plate subduction: In Episode Ill (<-100 Ma), red strata occurred along the NE -SW sinistral strike-slip faulting or failed rifting in small basins, which probably resulted from the drastic directional change of the Paleo-Pacific plate subduction from NW to SN. (C) 2019 International Association for Gondwana Research. Published by Elsevier B.V. All rights reserved.