Kinematics and Timing of Brittle-Ductile Shearing of Mylonites along the Bok Bak Fault, Peninsular Malaysia
Document Type
Article
Publication Date
1-1-2018
Abstract
Study on the Bok Bak fault in Peninsular Malaysia reveals it to be a predominantly dextral brittle-ductile strike slip fault zone. This fault zone is characterized by gentle to sub-horizontal NE stretching lineation. The deformation occurred in a brittle-ductile domain. 40Ar/39Ar radiometric dating of biotite from the mylonite assigns an age of 136.1 ± 1.4 Ma. This age is the first reported radiometric dating of the Bok Bak fault, suggesting that the fault affected Sundaland prior to the collision between India and Asia, and therefore indicates an early faulting in the Malay Peninsula.
Keywords
40Ar/39Ar dating, Bok Bak fault, Peninsular Malaysia, Strike slip, Sundaland
Divisions
GEOLOGY
Funders
University of Malaya’s Postraduate Research Fund (PPP) grant (project account number PG092-2012B)
Publication Title
Current Science
Volume
114
Issue
05
Publisher
Indian Academy of Sciences