ɽ�������д�ĥ���ҽ����λ��������Ѵ����࣬��ƽ�ɿ�����ˡ��󴲿�����Ϊ����ʴ�����ͣ��󴲾�������Һ�ͱ��� 2 ���ɿ��ڼ� 5 ���ɿ�׶Σ�Χ��ʴ����ҪΪ�軯������ĸ�����ػ��ȡ�ͨ���� 302 �����ӵ����������ԭ����ʯ����ѧ�����о����������ǰԵָʾԪ�����Ϊ Hg-- As--Sb����������ָʾԪ�����Ϊ Au--Ag--Cu--Pb--Zn������β��ָʾԪ�����Ϊ Bi--Co--Ni; �ݴˣ������˵���ѧ����ģ�͡�

Damoqujia gold deposit in Longkou of Shandong is located in the east part of Yishu fault belt and the north part of Zhaoping gold ore-forming belt�� The mineralization type of the deposit is a gold-bearing alteration type�� The deposit experienced two metallogenic periods (hydrothermal metallogeny and supergenic metallogeny) and five metallogenic stages�� The wall-rock alteration were mainly silicification��sericitization and potassic�� Through the research of the geochemistry characteristics of mineral vein No. 302 and primary rocks��the authors proposed that the guide elements of front halo of ore-body were Hg-As-Sb��the guide elements of near ore or ore-body were Au-Ag-Cu-Pb-Zn��and the guide elements of rear halo of ore-body were Bi-Co-Ni�� Accordingly��the geochemical exploration model was established��