Timing of Cenozoic basin formation in northern Sundaland, Southeast Asia


Author : Liew Kit KongPublication : Bulletin of the Geological Society of MalaysiaVolume : 37Page : 231-251Year : 1995


Description

Bulletin of the Geological Society of Malaysia, Volume 37, July 1995, pp. 231 - 251

 

Timing of Cenozoic basin formation in northern Sundaland, Southeast Asia

LIEW KIT KONG

PETRONAS Research and Scientific Services Sdn. Bhd., Lot 1026, PKNS Industrial Estate, Ulu Kelang, 54200 Kuala Lumpur

 

Abstract: Continental wrench shear basins and back-arc basins are developed on the present stable northern Sundaland. Different basin geometries and structural patterns among Cenozoic basins in northern Sundaland indicate different origins and/or timing of basin formation. Wrench faulting has played a significant role in the formation of these Cenozoic basins. The collision of the Indian Subplate with the Eurasian Plate during early Cenozoic has caused a redistribution of stress within this region. Zones of weakness have been reactivated or created by these stress field changes, thus initiating the subsidence of these basins. The episodic initiation of Cenozoic basins may have begun as early as Jurassic and continued in Eocene-early Oligocene and Late Miocene.