�������λ���ӱߵ�����dz�ɵ�����Һ��󴲡������IJ����ܲ�ͬ������ѹ�����ƣ���Ҫ�ֲ��ڼ�����ҡ�������ɽ�ҵ������弰�ز�֮�С��о���������Һ��󻯿ɷ�ΪʯӢ- - ����ʯ- - ����ʯ�׶Σ�ʯӢ- - ����ʯ�ٽ׶Σ�ʯӢ- -����ʯ�ڽ׶μ�����ʯ�׶� 4 ���׶Ρ�����������о��������о������ɿ�׶�ʯӢ����Ҫ������Һ�������������; ���һ�¶ȷ�ΧΪ 129. 8�� ��236. 5 �棬��ֵ����Ϊ 190 �� ��220 �棬�ζ� w ( NaCl) Ϊ 0. 83 % ��1. 98 %���ɿ�����Ϊ���¡����ζȵ� NaCl- H₂O ��ϵ��Һ������ͬλ���о��������������󴲳ɿ�����Ϊ�ҽ���Һ�������ˮ�Ļ�����壬����dz�ɵ�����Һ�������͡�

Wufeng gold deposit is an important epithermal gold deposit in Yanbian area�� The gold-bearing quartz veins are controlled by faults with different directions��which occur mainly in intrusive bodies such as alkali- feldspar granite and hornblende- andesite�� The present study shows that the mineralization can be divided into four metallogenic stages: quartz- adularia-calcite phase��quartz-calcite phases �� and �ڣ�and calcite phase�� The study of fluid inclusions indicates there developed gas-liquid two-phase fluid inclusions from quartz in the main mineralization in studied area��of which the homogenization temperature ranges from129. 8�� to 236. 5�棬while the peak value between 190�� to 220�棬the salinity w (NaCl) varies from 0. 83% to 1. 98%�� The ore-forming fluid is a kind of NaCl- H₂O solution at low- temperature and low- salinity�� The results of hydrogen and oxygen isotopes reveal that the ore- forming fluid is a kind of mixed fluid consisting of atmospheric precipitation and magmatic hydrother- mal�� The Wufeng gold deposit is epithermal in origin��