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Transcurrent faulting in the Sarawak-Kiri region, Sarawak, East Malaysia

Published online by Cambridge University Press:  01 May 2009

H. D. Tjia
Affiliation:
Department of Geology, National University, Kuala Lumpur, Malaysia

Summary

Geological discontinuities, lineaments, field observations, and interpreted π-girdles demonstrate a left lateral, NNW trending transcurrent fault in the Sarawak-kiri valley of West Sarawak. Topography and geology also suggest that the fault belongs to an important fracture zone that extends well into Indonesian Kalimantan, and continues in a northerly direction along the edge of the Sunda Shelf beneath the South China Sea.

Comparison with transcurrent faulting occuring in the Malay Peninsula and a probable wrench fault between Palawan island and Sabah (North Borneo) reveals the continental part of southeast Asia to have rotated counter-clockwise up to Lower Palaeogene time, probably as a response to spreading of the Pacific ocean floor.

Type
Articles
Copyright
Copyright © Cambridge University Press 1970

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References

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