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本文主要记述了治岭头、八宝山和庄山矿床(点)成矿的物化条件。它们的成矿温度主要集中于150—300℃,为中、低温矿床。成矿压力集中于120—30巴(12—30MPa),成矿深度约为0.3—0.9km。气体组分的还原参数较低,平均为0.4,fO_2约为10~(-38)—10~(-41),成矿溶液为弱酸性。流体包裹体、氢氧同位素,δD(％)为-58至-91,δ~(18)OH_2o(‰)为+3至-9。成矿溶液主要由大气降水(或地下水)和部分热液混合组成。
This paper mainly describes the physicochemical conditions of Zhilingtou, Babaoshan and Zhuangshan deposits (spots). Their metallogenic temperature is mainly concentrated in 150-300 ℃, for medium and low temperature deposits. The metallogenetic pressure is concentrated at 120-30 bar (12-30 MPa) and the metallogenic depth is about 0.3-0.9 km. The gas composition has a low reduction parameter, with an average of 0.4 and fO_2 of about 10 ~ (-38) -10 ~ (-41). The ore-forming solution is weakly acidic. Fluid inclusions, hydrogen and oxygen isotopes, δD (%) of -58 to -91, δ ~ (18) OH_2o (‰) of +3 to -9. The ore-forming solution is mainly composed of atmospheric precipitation (or groundwater) and partial hydrothermal mixing.