Bulletin of the Geological Society of Malaysia, Volume 10, Dec, 1978, pp. 53 – 62

Reconnaissance Palaeomagnetic Measurements on Triassic and Jurassic Sedimentary Rocks from Thailand

SANDRA M. BARR¹, ALAN S. MACDONALD² and NEVILLE S. HAILE³

¹Department of Geology, Acadia University, Wolfville, N.S., Canada

²Department of Geological Sciences, Chiang Mai University, Chiang Mai, Thailand

Present address: R.R. 3, Wolfville, N.S., Canada.

³Department of Geology, University of Malaya, Kuala Lumpur, Malaysia

Abstract: Reddish siltstones of Triassic and Jurassic age in northern Thailand are suitable for palaeomagnetic measurements. Groups of samples from east of the Khorat Plateau (Loei-Lomsak-Pitsanulok area), from the Ngao-Phrae highway, and from the Tak-Mae Sod Highway yield fairly consistent palaeomagnetic directions, with mean declination 26.3°, inclination 35.7°. This direction gives a palaeomagnetic pole at 64°N, 171°E for Thailand in Triassic-Jurassic time.

https://doi.org/10.7186/bgsm10197804