inscription
PORTAIL D'INFORMATION GÉOGRAPHIQUE

Late Quaternary tectonics of the Pearl River Delta, SE China : Evidence from Xilingang

Auteur(s) et Affiliation(s)

TANG, Y.
Dep. of Earth Sciences, Sun Yat-sen Univ., Guangzhou, Chine
Guangdong Electric Power Design Inst., Guangzhou, Chine
CHEN, G.
Dep. of Earth Sciences, Sun Yat-sen Univ., Guangzhou, Chine
Guangdong Province Key Lab. of Geological Processes and Mineral Resource Investigation, Guangzhou, Chine
PENG, Z.
Dep. of Earth Sciences, Sun Yat-sen Univ., Guangzhou, Chine
ZHANG, K.
Dep. of Earth Sciences, Sun Yat-sen Univ., Guangzhou, Chine
Guangdong Province Key Lab. of Geological Processes and Mineral Resource Investigation, Guangzhou, Chine


Description :
A section recently exposed at Xilingang in the hinterland of the Pearl River Delta reveals that the fault-block movement is likely periodic or paroxysmal and not a continuous subsidence. Quaternary system of the section can be divided into 3 parts named as layer A, B and C from the bottom upwards. Both layer A and B are alluvial while layer C is aeolian and are OSL dated. The unconformable contact with a dip angle larger than 30° between layer A and B suggests a paroxysmal tilting and subsidence of basement fault-blocks after the formation of layer A. A relatively rapid uplifting of the Xilingang hill after formation of layer B is highlighted. The 3 layers are all cut off by a NNE trending normal fault with a fault-throw of 53cm, suggesting that the third paroxysmal movement of fault-blocks in the Pearl River Delta were occurred in recent epoch.


Type de document :
Article de périodique

Source :
Geodinamica acta, issn : 0985-3111, 2011, vol. 24, n°. 3-4, p. 133-139, nombre de pages : 7, Références bibliographiques : 26 ref.

Date :
2011

Editeur :
Pays édition : Royaume-Uni, Abingdon, Taylor and Francis

Langue :
Anglais
Droits :
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)