【摘要】 文章以穆棱沸石矿床为例 ,探讨了天然沸石矿矿化分带特征与矿石物化性能的空间变化规律。研究表明 :矿床不同部位沸石矿化类型的差异变化与碱金属K、Na元素的分异富集特征关系密切 ;若两者分异富集明显 ,易形成单一的斜发沸石或丝光沸石矿 ;反之 ,则形成混合型沸石矿。由矿体浅部往深部 ,矿石物化性能的差异变化总体表现为 :NH+ 4和K+ 的交换容量、最大热失重值、吸湿率及气体吸附容量等渐趋增大 ;而矿石的耐酸性和热稳定性却有相反的变化趋势更多还原

【Abstract】 With a case study of the Muling zeolite ore deposit as an example, this paper ha s discussed the zeolitization zoning characteristics and the spatial variation o f physical_chemical capabilities of natural zeolite ores. Studies show that, alo ng with the intensification of mineralization and the enrichment of ore grades, H 2O and CaO+MgO contents and (CaO+MgO)/(K 2O+Na 2O) ratios tend to increase whereas K 2O+Na 2O amounts seem to decrease. There are close relations between zeolitization types and differentiations of alkali metals K and Na. The higher K_Na differentiation is responsible for the formation of simple zeolite (mordeni te or clinoptilolite) deposits, while the lower K_Na differentiation is responsi ble for the formation of mixed zeolite (mordenite and clinoptilolite) deposits. The clinoptilolite orebodies are relatively enriched in K and depleted in Na, wh ereas the mordenite orebodies are relatively enriched in Na and depleted in K. T he variation of physical_chemical capabilities of natural zeolite ores in differ ent parts of an orebody shows the following regularity: the CEC of NH + 4 and K +, the values of heated water losses, the hydroscopicity and the gas_absorbe d capacities tend to increase, while the resistances to heat and acid for zeolit e ores tend to decrease in downward succession of an orebody.更多还原