Four Treasures Reference Database
Record No. 5343
Petrochemistry of the Bo Phloi basalt, Kanchanaburi Province
Conference Paper
Yaemniyom, N. and Pongsapich, W. (1983) Petrochemistry of the Bo Phloi basalt, Kanchanaburi Province. Proceedings of the Annual Technical Meeting Chiang Mai University, 1–2 February, pp. 19–52.
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corundum, Thailand.12, gems
The Tertiary Bo Phloi Basalt crops out in the area of approximately half a square kilometer, in the vicinity of Amphoe Bo Phloi, Kanchanaburi Province. It overlies quartzite of the Bo Phloi Formation of Silurian Devonian age. Generally, it is dark, dense, fme-grained and porphyritic. Megacrysts of clinopyroxene, black spinel and sanidine are commonly present. Ultramafic (spinel/peridotite/lherzolite) nodules or inclusions with varying size as well as xenoliths of gneissic rock, are frequently observed.