NANNING, Jan. 15 (Xinhuanet) -- Archaeologists found a large-scaleoceanic trench in the areas with Karst topography in south China's Guangxi Zhuang Autonomous Region thought to have formed about 400 million years ago.

    The 20-hectare natural museum is located at Mount Malong in the scenic city of Guilin.

    The oceanic trench includes different sorts of stalagmite and stone chimes, and many resemble animals and pagodas.

    Archaeologists say that the oceanic trench was on the margin of the Baisha rupture belt about 400 million years ago. Enditem