Reconnaissance palaeomagnetic measurements on Triassic and Jurassic sedimentary rocks from Thailand


Author : Sandra M. Barr, Alan S. MacDonald & Neville S. HailePublication : Bulletin of the Geological Society of MalaysiaVolume : 10Page : 53 – 62Year : 1978


Description

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