Chinese archaeologists recently found a massive oceanic trench, in a Karst topography formation, in south China's Guangxi Zhuang Autonomous Region. The trench is believed to have formed about 400 million years ago on the margin of the Baisha fault belt.
When limestone interacts with underground water, the water dissolves the limestone to form karst topography - an amalgamation of caves, underground channels, and a rough and bumpy ground surface.
The 20-hectare natural museum is located at Mount Malong in Guilin.
The oceanic trench includes a variety of stalagmite and stone chimes, many resembling animals and pagodas.
(Xinhua News Agency January 16, 2006)