| 敬海兴,魏宇,罗波,李俊俊,刘伟,王能.四川省雷波县足哈石灰岩矿的地质特征及质量评价[J].地质找矿论丛,2023,38(4):438-445 |
| 四川省雷波县足哈石灰岩矿的地质特征及质量评价 |
| Geological characteristics and quality evaluation of limestone ore in Zuha area. Leibo county. Sichuan province |
| 投稿时间：2023-08-07 修订日期：2023-11-27 |
| DOI：10.6053/j.issn.1001-1412.2023.04.005 |
| 中文关键词: 足哈石灰岩矿 阳新组灰岩 建筑材料 质量评价 雷波县 四川省 |
| 英文关键词:Limestone ore in Zuha area limestone in Yangxin formation building material quality evaluation Leibo county Sichuan province |
| 基金项目: |
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| 中文摘要: |
| 四川省雷波县足哈石灰岩矿的赋存层位为中二叠统阳新组,石灰岩在矿区的出露面积为5.5012 km2。石灰岩的矿石化学成分平均值为w(CaO)=53.62%、w(MgO)=0.86%、w(K2O+Na2O)=0.02%、w(SO3)=0.08%、w(SiO2)=1.72%、w(Al2O3)=0.25%、w(Fe2O3)=0.10%、w(Cl-)=0.01%、w(LOI)=42.94%;97.37%的样品中有害成分w(MgO)＜3%;w(CaCO3+MgCO3)的加权平均值为97.49%;饱和抗压强度(水饱和)31.50~37.93 MPa,坚固性1%~4%,压碎指标9%~10%;内照射指数和外照射指数均＜1.0;无潜在碱活性危险。所有指标均符合水泥用灰岩、制灰用灰岩、建筑石料的要求。矿区灰岩矿的地质特征和矿石物理化学指标显示,阳新组灰岩可广泛用于建材工业的多个领域,具有重要的经济价值和应用前景。 |
| 英文摘要: |
| The limestone ore occurs in Middle Permian Yangxin formation with outcrop area about 5.5012 km2 containing averagely w(CaO)=53.62%, w(MgO)=0.86%, w(K2O+Na2O)=0.02%, w(SO3)=0.08%, w(SiO2)=1.72%, w(Al2O3)=0.25%, w(Fe2O3)=0.10%, w(Cl-)=0.01%, w(LOI)=42.94% . Its harmful constituent w(MgO) of 97.37 % of the samples is less than 3% without potential risk of active alkaline. The weighted average of w(CaCO3+MgCO3)=97.49%, the saturated compressive strength (water saturation)=31.50~37.93 MPa, robustness =1%~4%, crushing index =9%~10%, inner and outer illumination index less 1.0 all meet requirements of cement-making and lime-making and building material. It is of significant economic value. |
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