Fig. 16

Photos of Cenozoic Mae Fang Formation sediment. Photos (a–c) are located 100 m west of the national park check station on the road to Doi Pha Hom Pok at (520495E, 2207547N). a Clayey, sandy gravel with lenses of coalified wood dipping 44°SE. b Reverse fault (strike of 070°, dip of 61°NW) in sandy gravel. Footwall sediments dip 44°SE. Digging hoe, 1 m long, for scale. c Close-up photo of sandy gravel of photo (a). Clasts are entirely dark gray to white quartzite with white quartz veinlets. d Sandstone and conglomerate (strike 310°, dip 45°SW in the bed of the Nam Mae Chai (river), on the immediate SE side of the Mae Chan fault (516790E, 2206410N)). e Normal fault (strike 025°, dip 39°NW, 2 m offset) in pebbly sandstone of the Mae Fang Formation striking 001° to 335°, and dipping 25° to 34°. Base of section (lower right) is 2 m of gray silt with coalified plant detritus. Excavation is 11 m high. Location is 700 m west of Ban Hua Na School at (513584E, 2203193N)