以具有不同晶形结构的两种石灰石原矿为研究对象,通过改变煅烧温度和保温时间获得不同活度的煅烧产物,借助X射线衍射分析煅烧产物的物相组成,依靠扫描电子显微镜观测其微观形貌,以酸碱滴定法测量其活度,考察原矿中石灰石结晶形貌对石灰...以具有不同晶形结构的两种石灰石原矿为研究对象,通过改变煅烧温度和保温时间获得不同活度的煅烧产物,借助X射线衍射分析煅烧产物的物相组成,依靠扫描电子显微镜观测其微观形貌,以酸碱滴定法测量其活度,考察原矿中石灰石结晶形貌对石灰石分解的影响。结果表明:层状结构的石灰石比颗粒状结构的石灰石具有更高的热分解温度,且分解速率较慢;在相同的煅烧条件下,前者的煅烧产物较后者具备更高的活性。在相同的煅烧温度下保温60 min时,Ca O晶体具有疏松的多孔结构并且存在大量的缺陷,此时的活度最高,活度值达到328.6 m L。展开更多
Along the belt of the Shuanghe colliery on the NW edge of the Jianchuan Basin in NW Yunnan, there is a suite of thickly bedded crystalline limestone. Based on the geological map (1:200,000) done by the Regional Geolog...Along the belt of the Shuanghe colliery on the NW edge of the Jianchuan Basin in NW Yunnan, there is a suite of thickly bedded crystalline limestone. Based on the geological map (1:200,000) done by the Regional Geological Survey Team of Yunnan Province, we investigated the strata of this suite, determined and drew展开更多
The relative age of fractures can be determined through structural analyses in the field or through the detailed mineralogical (XRD) and chemical analyses (AAS method, volumetric, and gravimetric analysis) of fault go...The relative age of fractures can be determined through structural analyses in the field or through the detailed mineralogical (XRD) and chemical analyses (AAS method, volumetric, and gravimetric analysis) of fault gouge in the laboratory. The aim of this work was to compare these approaches. It was hypothesised that the two methods would yield consistent results. The studied faults were located in the Rychleby Mts, part of the Sudetic Marginal Fault Zone. The relative age of the faults was determined in the field through the application of the intersection law. The fault gouges were sampled in a crystalline limestone quarry near the village of Vápenná. The mineralogical composition of the fault gouges has been established by XRD analysis of powder samples and analysis of preferentially oriented clay minerals. From our result, it is clear that these two approaches yielded consistent results with regard to the relative age of the faults.展开更多
文摘以具有不同晶形结构的两种石灰石原矿为研究对象,通过改变煅烧温度和保温时间获得不同活度的煅烧产物,借助X射线衍射分析煅烧产物的物相组成,依靠扫描电子显微镜观测其微观形貌,以酸碱滴定法测量其活度,考察原矿中石灰石结晶形貌对石灰石分解的影响。结果表明:层状结构的石灰石比颗粒状结构的石灰石具有更高的热分解温度,且分解速率较慢;在相同的煅烧条件下,前者的煅烧产物较后者具备更高的活性。在相同的煅烧温度下保温60 min时,Ca O晶体具有疏松的多孔结构并且存在大量的缺陷,此时的活度最高,活度值达到328.6 m L。
文摘Along the belt of the Shuanghe colliery on the NW edge of the Jianchuan Basin in NW Yunnan, there is a suite of thickly bedded crystalline limestone. Based on the geological map (1:200,000) done by the Regional Geological Survey Team of Yunnan Province, we investigated the strata of this suite, determined and drew
文摘The relative age of fractures can be determined through structural analyses in the field or through the detailed mineralogical (XRD) and chemical analyses (AAS method, volumetric, and gravimetric analysis) of fault gouge in the laboratory. The aim of this work was to compare these approaches. It was hypothesised that the two methods would yield consistent results. The studied faults were located in the Rychleby Mts, part of the Sudetic Marginal Fault Zone. The relative age of the faults was determined in the field through the application of the intersection law. The fault gouges were sampled in a crystalline limestone quarry near the village of Vápenná. The mineralogical composition of the fault gouges has been established by XRD analysis of powder samples and analysis of preferentially oriented clay minerals. From our result, it is clear that these two approaches yielded consistent results with regard to the relative age of the faults.
