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首页> 外文期刊>Arabian Journal for Science and Engineering. Section A, Sciences >MINERALOGY OF THE SWAT KAOLIN DEPOSITS, PAKISTAN
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MINERALOGY OF THE SWAT KAOLIN DEPOSITS, PAKISTAN

机译：巴基斯坦SWAT高岭土矿床的矿物学

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摘要

This study provides the mineralogical and compositional characterization of the Swat kaolin deposits of Pakistan and their parent and enclosing rocks. The mineral assemblage of the raw kaolin of these primary deposits, has been determined to include disordered kaolinite, paragonite, clinochlore, epidote, disordered calcian albite, quartz, calcite, mont-morillonite, and halloysite. Amongst the five size-fractions prepared in this study (raw, < 63 μm, < 10 μm, < 5 μm, and < 2 μm), the kaolin group mineral content increases in the finer fractions. The deposits are derived from feldspar-rich primary rock types that are mainly calc-alkaline quartz diorites, tonalites, granitoids, and pegmatites. Plagioclase chemistry exhibits negative correlations of SiO_2 versus Al_2O_3, and CaO versus Na_2O, due to either or both of fractional crystallization, and hydrothermal replacement. The mineralogical attributes that influence the industrial usage of Swat kaolin are highlighted.
机译：这项研究提供了巴基斯坦斯瓦特高岭土矿床及其母体和围岩的矿物学和组成特征。已确定这些主要矿床的原始高岭土的矿物组合包括无序的高岭石，方解石，斜绿石，附子，无序的ian石钠长石，石英，方解石，蒙脱石和埃洛石。在本研究中准备的五个粒度级分（原始，<63μm，<10μm，<5μm和<2μm）中，高岭土矿物质含量在较细级分中增加。这些矿床来自长石丰富的原始岩石类型，主要是钙碱性石英闪长岩，同色岩，花岗岩和伟晶岩。由于部分结晶和水热置换中的一个或两个，斜长石化学显示出SiO_2与Al_2O_3，CaO与Na_2O呈负相关。突出影响斯瓦特高岭土工业用途的矿物学属性。

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