Using the neutron activation analysis method,the author studied the trace element characteristics of silicified and limonitized quartz sandstones,diabases,limestones and pyrite in the Laozhaiwan gold deposit,and analyzed the relationships between the elements.

There are five generations of pyrite in Laowangzhai gold deposits,in which the third generation and the fourth generation are closely related to the gold mineralization.

This paper reports chemical composition for different kinds of occ urring car bonates of non-mineralized and mineralized lamprophyres in Laowangzhai gold deposits area,Yunnan province.

The Laowan gold deposit in Henan Province,one of the most important gold deposits in the Qinling-Dabie orogenic belt,is hosted within Proterozoic metamorphic rocks,controlled by the Lanwan NWW-trending shear zone and related to the nearby Laowan Yanshanian granite.

The Laowan gold ore belt is an important component part of the Tongbai-Dabieshan(northern slope) gold-silver metallogenic belt,and the Laowan gold deposit is one of the major deposits in this belt and also one of the important large-size metamorphic clastic rock gold deposits in China.

The materias source base and material condition of mineralization, the main source of rare earths element in ore of Laowan Gold Deposit are analyzed.

Geological characteristics of the Laowan gold ore belt of tongbai in Henan Province;

Laowan gold ore belt is a primary gold mineralization belt of the tectonic altered rock type in the Tongbai-Dabie region.

Geochemistry of fluid inclusions and rare earth elements from Laowan gold deposit in Henan Province;

Research on the forming era of Laowan gold deposit in Henan Province and its lead isotope;

The host wall-rocks of the Laowan gold deposit are metamorphic rock series of Middle Proterozoic Guishan Formation which had undergone multiple deformation and metamorphism of ductilitic-brittlitic shear.