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望儿山金矿的成矿过程可划分为黄铁矿-石英阶段、石英-黄铁矿阶段、多金属硫化物阶段和石英-碳酸盐阶段。分别对4个成矿阶段中的石英进行了热释光和晶胞参数测定。热释光结果表明,本区石英热发光曲线以中温峰明显的单峰和不对称的双峰为特征。主成矿阶段的石英发光曲线开始出现双峰,曲线复杂,发光强度最高,变化最大,这也是本区重要的找矿标志。Ⅲ号脉的深部石英热发光曲线出现肩峰和双峰,峰型复杂,推测其下部有较好的成矿前景。石英晶胞参数在时空上呈现规律性的变化,主成矿期石英晶胞参数a_0、c_0、v_0都较大。(Δa_0/a_0)/(Δc_0/c_0)变化范围为1.65~4.40,说明本区微量元素进入石英有填隙和置换两种方式,以填隙为主。半高宽变化趋势和晶胞参数一致,因此半高宽也可以区分石英的含金性。深部石英晶胞参数和半高宽仍较大,所以推测下部仍有较好的成矿前景。
The mineralization process of Wangershan Gold Mine can be divided into pyrite-quartz phase, quartz-pyrite phase, polymetallic sulfide phase and quartz-carbonate phase. The thermoluminescence and unit cell parameters of quartz in four metallogenic stages were respectively measured. The results of thermoluminescence show that the thermoluminescence curve of quartz in this region is characterized by obvious single peaks and asymmetric double peaks with medium temperature peaks. Quartz luminescence curve of the main mineralization began to appear double peaks, the curve is complex, the highest luminous intensity, the biggest change, which is also an important indicator of prospecting in this area. Shoulders and bimodals appear in the deep quartz thermoluminescence curve of the Ⅲ pulse, and the peak type is complicated, suggesting that the lower part of the pulse has better metallogenic prospect. Quartz unit cell parameters showed regular changes in time and space, the main mineralization quartz cell parameters a_0, c_0, v_0 are larger. (Δa_0 / a_0) / (Δc_0 / c_0) ranged from 1.65 to 4.40, indicating that there are two ways for interstitial and substitution of trace elements in quartz in this area. Half-height width of the same cell and cell trends, so the full width at half maximum can also distinguish the gold content of quartz. Deep quartz cell parameters and FWHM are still large, so it is speculated that there is still a good prospect of mineralization in the lower part.