Development of unconformity and its effect on the migration and accumulation of hydrocarbon in Wu'erhe-Xiazijie area,Junggar Basin;

Relationship between unconformity and hydrocarbon accumulation in the Mesozoic of eastern Qaidam Basin;

Restoration of eroded strata thickness in Cretaceous/Jurassic unconformity in hinterland of Junggar Basin;

Structure of unconformity and its control on hydrocarbon accumulation;

Method of identifying unconformity by using logging data.;

Application of logging data in identifying the depth of unconformity.;

The concept of “unconformity body” is first proposed for the relation between strata reservoir and unconformity contact.

Role of surface of unconformity in formation of oil or gas reservoirs;

The combination of fault transport system and connected sandbody, surface of unconformity transport systems form the compound transport systems of fault - connected sand body, fault -surface of unconformity and fault - connected sandb.

The Pb-Zn deposit in Northeastern Guangxi are occurred under the surface of unconformity between the Cambrican-Ordovician and the lower Devonian ,and were formed under complex conditions.

This method is well applied in plotting unconformable surface,identifying fault,analysing sedimentary microfacies and judging palaeocurrent direction.

Chengdao area is abundant in multifarious migration pathways as fault,sand body and unconformable surface, which compose a solid migration pathway.

As the favorable place of dissolution,the unconformity zone has the function to serve as the pathway of the migration and accumulation of oil and gas because of the improvement of its physical property.