Palaeocurrent Data: Evidence for the Source of the Langjiexue Group in Southern Tibet;

The material sources of the Langjiexue Group-complex and Nyêru Formation (Garbo Formation) are quite different: the former was derived from the Gangdise area to the north and has the features of the recycled orogenic belt, accompanied by the marks of magmatism and volcanism, implying that the Gangdise slab and the Himalayan passive continental margin were amalgamated or subducted duri.

Geological-geochemical characteristics and genesis of massive sulfide deposits in Er'langping Group of East Qinling;

Geochemical characteristics of hydrothermal sediments for baritic rocks of Erlangping Group in northern Qinling Mountains and their significance for mineralization;

The Geochemical Characteristics of Cherts of Erlangping Group in East Qinling and Their Sedimentary Environment Importance;

Geochemical Characteristics of Hydrothermal Cherts of Erlangping Group in East Qinling and Their Geologic Significance;

Structures, Evolution and Tectonic Implications of the Erlangping Group in North Qinling;

Ever since the 1970s,the schemes of division and correlation of the Erlangping Group and its correlated strata have even arrived more than 10 types.

In order to show details of the belt during the Late Mesozoic,we have carried out a series of analysis for the Erlangping Group on meso-small structure,micro-texture,electron-probe and geochronology.

To gain a better understanding of the thermal history of the Erlangping Group,~(40)Ar/~(39)Arplateau age analysis was made on muscovite from garnet-bearing mica quartz schist and hornblendefrom amphibolite.