Fig. 2
Outcrop characters and field observations in Khon Kaen Geopark, illustrating lithological and structural characteristics. Lithologic features include: (a) reddish sedimentary sequence at KK1 (236675E 1842550 N), (b) brownish sandstone at KK2 (226253E 1849158 N), (c) thin- to medium-bedded reddish sandstone at KK3 (222432E 1839402 N), (d) white sandstone cliff at KK4 (209779E 1858235 N), (e) white sandstone waterfall at KK5 (207778E 1858099 N), (f) dinosaur footprint in the Phra Wihan Formation at KK6 (209622E, 1856274 N)1 (g) reddish sandstone of the Sao Khua Formation at KK7 (217378E 1849227 N), (h) reddish sandstone of the Nam Phong Formation at KK8 (222488E 1836052 N), (i) white sandstone of the Phra Wihan Formation at KK9 (196145E 1831633 N), and (j) white sandstone cliff of the Phra Wihan Formation at KK10 (196207E 1831578 N). Macrostructural features recorded at KK11 (229013E 1856227 N) include: (k) a folding structure showing bedding orientation consistent with compressional tectonics, and (l) a slickenside surface on a thrust fault, indicating fault movement direction. Additional lithologic units include: (m) rocksalt of the Maha Sarakham Formation at KK13 (216587E 1847412 N), and (n) basal conglomerate of the Lower Nam Phong Formation at KK12 (234242E 1855298 N).
