Earth's surface responses during geodynamic evolution: Numerical insight from the southern East China Sea Continental Shelf Basin, West Pacific

Detrital zircons record the evolution of the Cathaysian Coastal Mountains along the South China margin

“…An Andean‐type South China margin formed by the subduction of the Paleo‐Pacific Plate during the Jurassic–Cretaceous (Gilder et al, 1996; Li et al, 2018; Suo et al, 2019). Paleogeographic reconstructions based on climate data preserved in the stratigraphic record (Chen, 2000; Hasegawa et al, 2012), fossil records (Hao et al, 2017; Jin, 2009), thermochronology (Li & Zou, 2017), isotope‐based paleoaltimetry (Zhang et al, 2016), and paleo‐topographic modelling (Liu et al, 2020; Suo et al, 2019) suggest that a significant mountain range, characterised by extensive Yanshanian (Jurassic–Cretaceous) magmatism existed along the South China margin in the Late Mesozoic‐Early Cenozoic but has since collapsed due to pronounced crustal extension. This former high landform was the Cathaysian coastal orogenic range (Chen, 1997; Zou, 2001) defined as a series of northeast‐trending, ca.…”

“…However, estimates for the age of formation, extent, thickness and time of the collapse of the mountain range are uncertain. For example, Badlands (acronym for Basin and Landscape Dynamics, Salles, 2016) landscape evolution modelling based on seismic data (Liu et al, 2020; Suo et al, 2019) suggests that the paleotopographic coastal mountain range coincides with a Jurassic magmatic arc (Xu et al, 2017) along an Andean‐type South China margin. Other studies estimate the timing of formation for the Cathaysian Coastal Mountains from the Late Cretaceous to the Miocene (Chen, 2000; Hao et al, 2017; Xie et al, 2020; Zhang et al, 2016) or postulate episodic exhumation with decreases in paleo‐elevation since the Late Cretaceous (Li & Zou, 2017).…”

“…modelling (Liu et al, 2020;Suo et al, 2019) suggest that a significant mountain range, characterised by extensive Yanshanian (Jurassic-Cretaceous) magmatism existed along the South China margin in the Late Mesozoic-Early Cenozoic but has since collapsed due to pronounced crustal extension. This former high landform was the Cathaysian coastal orogenic range (Chen, 1997;Zou, 2001) defined as a series of northeast-trending, ca.…”

Space-Temporary Analysis of External Geodynamic Disasters Occurred in Huaraz Province, Ancash - Peru

“…External geodynamic processes, also called exogenous, are represented by processes occurring at the earth's surface, which in uence the evolution and modelling of the landscape (Liu et al, 2020; Mas-pla & Bach, 2008; J. Medina, 1991), destroying rock formations raised by internal geodynamics and dragging debris to lower places (Fan et al, 2018;Tarbuck & Lutgens, 2005).…”