Joint patterns and faulting in Kinta, West Malaysia

Author : D. J. Cobbett
Publication : Bulletin of the Geological Society of Malaysia
Page : 39-48
Volume Number : 4
Year : 1971

Bulletin of the Geological Society of Malaysia, Volume 4, June, 1971, pp. 39 – 48

Joint Pattern and Faulting in Kinta, West Malaysia


Sedgwick Museum, Cambridge


Abstract: The Kledang Range is interpreted as a granite horst. Its faulted boundary with the Kinta Valley has been later cut and offset by many minor wrench faults with a dominant northwesterly strike produced by an approximately east-west directed compressive stress. Other observed lineations are interpreted as conjugate shear joints and/or lateral shears forming second or third order structures associated with the wrench faults and also with possibly major northwesterly striking wrench faulting postulated elsewhere in West Malaysia. Quartz dykes have widened original tension joints. Some vertical movement in northwest striking fault planes is evidenced by the contours of the sub-alluvial valley floor and the watershed which crosses the northern part of the valley.