Application of Q type clustering analyses in determining mineralization-related vein rock—with Damiaozi-Caiqiangzi gold deposit area of Huadian as a case;

Relationship between vein rock and disseminated gold deposits in the east of Liming's auriferous belt;

The vein rocks can be divided into two types,one is that the ore veins are emplaced in the front of vein rocks,and the other in the rear.

Relationship of dike and gold mineralization in Zhao-ping fault belt;

Highly dense and frequent dikes are temporally and spatially associated with gold deposits in the Guocheng area in the Jiaodong Peninsula, which mostly include diabase, lamprophyre, diorite, diorite-porphyrite, granite-porphyrite and syenite-porphyrite.

These dikes are temporally and spatially associated with the gold deposit,and they have the same Pb isotopic compositions,which suggest the comagmatic activities in the same tectonic background.

In this paper, analyses of major elements and trace elements for mafic dikes in several rock areas of the Zibo basin in West Shandong Province are reported.

Rejia area,Baiyu,Sichuan is characterized by the development of dyke rocks wich were emplaced in groups and in zones into the Sayan Formation (T(1-2))and the Genlong Formation(T3).

206Pb/? 208U age of the granitic diorite dyke in Erdaogou gold deposit is 223±2 Ma and quartz syenite dyke in Bajiazi gold deposit 241±6 Ma-218±6 Ma.

Since the cooling and consolidation in the end of early Cretaceous,the Dazhushan granitic body has been intensively fractured under the changing tectonic stress field,in the form of dyke sets,joint sets and faults of variable trend.

K-Ar ages of basic-acid dikes of the 118-323 km section of the Xinjiang-Tibet Highway in the West Kunlun;

For TM polarization, the apparent resistivities always change when measure station passes over a dike.