Status of China s metal ores foreign trade and strategy of importation;

A mineralogical investigation of platinum-group metal placers from Burma was made by electron probe microanalysis (EPMA).

Discovery of the Mayum placer gold deposit,Burang County,Tibet,and its significance;

The oreprospecting model of synthetic information of placer gold deposits in Altay Region,Xinjiang;

Analysis on geological conditions of the mineralization of placer gold deposit in Chaihe River Valley;

Geological features of gold placer and prospecting guide in Bengnazangbu, Tibet;

Metallogenic features and prospecting direction of gold placer,northern Tibet;

The checking computation of structural size of gold dredge in mining of gold placer;

The defining of thawing cycle of natural thawing method in the slicing of placer gold deposit in permafrost horizon;

The Maqu placer gold deposit is located in the Qamdo district of the Eastern Tibet.

The geopolymers were synthesized using gold-tailings, metakaolin, water glass, sodium and potassium hydrate.

This paper analysed the practicability of making building materials such as cement,glass,ceramic,brick,tile and so on from the gold-tailings of Sanshan Island.