Skip to main content
padlock icon - secure page this page is secure

Two‐stage Cretaceous Exhumation of Hengshan Complex in Hunan Province, SE China: Constraints Arising from 40Ar–39Ar Geochronology and Cretaceous Tectonic Implications

Buy Article:

$52.00 + tax (Refund Policy)

The Hengshan complex is located in the central part of SE China, which underwent rapid tectonic uplift in the Cretaceous just like many other complexes on the continent. 40Ar–39Ar geochronological data from the Hengshan complex suggest that two episodes of crustal cooling/extension took place in this part of the continent during the Cretaceous time. The first stage of exhumation was active during ca. 136–125 Ma, with a cooling rate of > 10 °C/Ma. The second stage of exhumation happened at ca. 98–93 Ma, with a cooling rate of > 10 °C/Ma. Considering the folding in the Lower Cretaceous sedimentary rocks and the regional unconformity underneath the Upper Cretaceous red beds, it is believed that the Cretaceous crustal extension in SE China was interrupted by a compressional event. The reversion to extension, shortly after this middle Cretaceous compression, led to the rapid cooling/exhumation of the Hengshan complex at ca. 98–93 Ma. The Cretaceous tectonic processes in the hinterland of SE China could be controlled by interactions between the continental margin and the Paleo–pacific plate.
No References
No Citations
No Supplementary Data
No Article Media
No Metrics

Keywords: 40Ar‐39Ar geochronology; Cretaceous tectonics; Crustal extension; Hengshan complex; SE China

Document Type: Research Article

Publication date: December 1, 2015

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more