TECTONIC EVOLUTION AND THE GOLD DISTRIBUTION IN EASTERN HEBEI

After a study of the structural features and their genetic relations in Eastern Hebei,the authors establish the structural systems of the region.A discussion of the tectonic evolution and their relation with mineralization is made on the basis of the determination of the age of the tectonic movements.It was found that the distrbution of the gold depesits is controlled by sysmetallogenic structural system,a system which was active during mineralization.
At the same time,the authors carried out a model experiment of the synmetallogenic stress field of some typical gold areas for the prediction of the blind ore bodies,and achieved good success,yielding 22.72t of pure gold.