�԰Ĵ����Dz���˹Cu�������Ϊ�����о��˸ÿ󴲵ĵ��������ѧ��������Ϊ�ÿ�����“����”�����׶θ�����Cu��Pb��Zn�Ƚ���Ԫ�أ��ں������±ˮ�������γɿ󻯵�һ��“����һ����”�󴲡��ڴ˻����ϣ��Աȷ������ޱ���ͭ���������Kupfershierferͭ������й����϶���ͭ�󴲣��ܽ��˸���ͭ�󴲳ɿ��һ����ɣ���Ϊ����󴲵Ľ�������һ����Դ���·���㣯�绯���ף� Sһ�������������Һͺ�ɫҳ�ң�����󴲹�������Ҳ�ṩ��SԴ���ɿ�����Ϊ��һ���ζȡ����µ����������±ˮ���ɿ�������Ҫ�������(CuCl₃^-)�ķ�ʽ���ƣ�������������һ���������Թ����˶���������˥�����Ⱥ��������Ҳ�ܹ������������ƣ���������������Ҫ�����ǻ�ԭ��Ӧ����Ҫ��ԭ����ԭ���л��ʣ�������ݻ������У��ɿ����Ԫ����������ԭ��������S��ϳ����������γɿ󻯡�

Taking the Browns Cu-polymetallic deposit as an example��the authors study its geological and geo-chemical characteristics��It is believed that the Cu��Pb and Zn were enriched during “hungery”deposition stage�� and formed a sedimentary-reformed deposit mineralized by brine effect of later basins��On the basis��the authors conclude the metallogenic regularity of this kind of Cu deposit by constrasting with the Zanbian copper belt(ZCB)�� Kupferschiefer copper belt in Poland��and Dongchuan copper belt in Yunnan of China��It is considered that the me— tallic minerals are commonly sourced from the underlying red—bed and weathered basement��the sulfur is from the evaporite and black shale��mudstone��and rarely from the ancient hydrocarbon reservoirs��The metallogenic fluid are mid—high salinity and intermediate temperate oxidized basin brine��The metallogenic minerals transport mainly as CI-complex(CuCl₃^-)��and the driver force of fluid flow are tectonic activity��radiation heat and salt diapir can also lead to fluid transpotation. Reduction is the main mechanism of metallic minerals precipitation, and in-situ organic matter is the main reducing agent. The metallic minerals combined with S and predipitated on oxidation-reduction interface, and mineralized during the basin evolution.