There were three explanations about the geological structures of Maoshan.First,accustomed saying,Maoshan including the most southern area of Anhui and Ji-angsu was the main range of the foldings formed in Indo-China movement; second, by geomechanics, Maoshan waa considered as a combination of several diffuent struetural systems, the north-south axis of Ningzhen Mt. reflexed are, and too, to be unrooted; third, recently, geologists working in plate-tectonic field emphasized the "listric fault" formed by stresses wmprrssed from cast to west in southun China, and thus Maashan was one of the nappes.
