The extensional gliding nappe structure of Wugongshan magmatic thermal dome was developed from a Calidonian folded basement.

Many experts have worked in this area and they thought the magmatic dome in the deposit is close to porphyry deposit according to its overall characteristics of the ore and alternation zoning (a large scale.

According to the recent understandings of the tectonic setting of Xiao Qinling area,it is put forward that the geological model of volcanic thermal dome gold being formed in the metamorphic complex cone under A-type subduction after studying of geology and minerals in this area.

Selecting two geologic models:dome model with homogeneous overlying medium and dome and fault model with overlying fractured formation,over which a ordinary 3 D seismic data acquisition,processing and analysis have been done and following results are obtained:① seismic physical model experiment can fully model 3 D geologic structural body;② wavefield feature of eac.

This paper introduces various data about Longshan dome (brachy-anticline) in Xinshaocounty, Hunan Province, China, and demonstrates that the dome (brachy-anticline) doesnot exist there on the basis of the definitions of dome and brachy-anticline, geologic sectionsand occurrence of the strata of Longshan area, as well as proposes a new viewpoint on thestructure of the district.

Transcaliosum interfornix approach to microsurgically remove the tumors of the third ventricle;