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)