�Կ��Ž�����λ�ں�����ʡ�����ؾ��ڣ�Ŀǰ�ѷ��� 5 ����� 11 �����塣���Т򡢢󡢢� ��� 5 ���������������鹤��������ʲ�������״������������������ͺ�����������һ�鱱���������Զ��ѿ��ơ�������Ҫ�������°���ͳ�����鰲ɽ��������У��ռ�ֲ���軯������һ�£��ؿ���ʯ��ҪΪ�軯�����ҡ���ƽ��Ʒλ 2. 77 × 10 ��6����ƽ��Ʒλ 60. 58 × 10 ��6��̽�� 332 + 333 ������Դ���ֱ�Ϊ 8. 70 t��138. 31 t��Ϊһ���ͽ�����ͨ�����Կ��Ž�����ĵ���������������Ϊ�ÿ������°���ͳ�����顢�⻪�鼰����������ѿ��ƣ����е��»�ɽ��Һ�Ϳ󴲡�Χ��ʴ�� ( �軯������ĸ�������黯��������) ���ﻯ̽�쳣���ҿ��־��ʡ��Ѱ��ͬ��󴲾���Ҫ���塣

Pangkaimen gold and silver deposit is located in Huma County of Heilongjiang��where have been found 5 mine zones and 11 mine bodies��in which and five mine bodies from the mine zones of �򣬢󣬢� were in- vestigated�� The mine bodies expanded and contracted along the direction and tendency with irregular shape��and controlled by a group of NNW trending extensional fracture�� The mine bodies mainly occurred in the Lower Creta- ceous Longjiang Formation andesite fracture zone��their spatial distribution were consistented with the silicified breccia��which were the mainly mine rocks�� The average gold grade of 2. 77 ×10��6��silver average grade of 60. 58 ×10��6��the 332 +333 gold and silver resources are 8. 70 t and 138. 31 t��respectively��which shows a medium- sized gold and silver mine�� Through the geological characteristic analysis��the authors proposed that the gold and silver mine bodies controlled by the Lower Cretaceous Longjiang and Guanghua formations and NNW trending frac- ture��belonging to volcano mesothermal deposits�� The wall rock alterations (silicification��sericitization��fragmenta- tion��and pyritization) and geophysical-geochemical anomaly prospecting guide were important for searching of the similar deposits in Heilongjiang Province��