2007 Photograph, Sao Chaliang Stone Formations, Pha Taem National Park, Ubon Ratchathani, Thailand, © 2020.
ภาพถ่าย ๒๕๕๐ เสาเฉลียงิโครงสร้างหินทราย ผาแตัม อุบลราชธานี ประเทศไทย
These mushroom shaped
stone formations are composed of two layers of sandstone, the softer one
dating from approximately 180 million years ago and the harder capping layer
dating from approximately 130 million years. The sculpting is primarily due to
wind weathering away the softer sandstone layer during dryer periods in the
past. |
