陕西佳县王家砭高岭土矿地质特征、矿床成因及利用方向  

Geological Characteristics,Genesis and Resource Utilization of the Wangjiabian Kaolin Deposit in Jiaxian,Shaanxi Province

作　　者：王飞 张一岚 王小朗 牛如 雷东 刘锦 WANG Fei;ZHANG Yilan;WANG Xiaolang;NIU Ru;LEI Dong;LIU Jin(Shaanxi Geological and Mineral Innovation Research Institute Co.,Ltd.,Xi’an 710054,Shaanxi,China;Xi’an Institute of Geological and Mineral Exploration Co.,Ltd.,Xi’an 710100,Shaanxi,China;Shaanxi Geology and Mining Group Co.,Ltd.,Xi’an 710054,Shaanxi,China)

机构地区：[1]陕西地矿创新研究院有限公司,陕西西安710054 [2]西安地质矿产勘查开发院有限公司,陕西西安710100 [3]陕西地矿集团有限公司,陕西西安710054

出　　处：《西北地质》2025年第2期274-287,共14页Northwestern Geology

基　　金：陕西地矿集团有限公司科研专项资金项目(KY202122);佳县王家砭高岭土矿调查评价项目(YLXD2017-邀020)联合资助。

摘　　要：鄂尔多斯是在古生代华北克拉通盆地基础上发育的中新生代沉积盆地,是中国重要的多能源和矿产共存富集地与产地。下侏罗统富县组是在印支运动后期三叠系抬升遭受侵蚀形成的剥蚀面上填平补齐沉积的产物,陕西佳县王家砭高岭土矿赋存于鄂尔多斯盆地东缘下侏罗统富县组“细富县”砂岩-黏土岩建造中,具有很大的找矿潜力。但其地质特征、矿床成因及利用方向仍不明确,制约了区内高岭土矿的勘查与开发。笔者在总结该高岭土矿地质特征的基础上,对矿层的SiO_(2)、Al_(2)O_(3)、Fe_(2)O_(3)、TiO_(2)、K_(2)O、Na_(2)O、CaO、MgO、MnO、烧失量、白度等以及烧成收缩率、耐火度、可塑性指数、干燥收缩率、烧结温度等物理性能指标进行了测试和实验,探讨了矿床成因、构造背景,总结了找矿标志,对矿石品质进行了初步评价,并提出了利用建议。Ordos is a Mesozoic-Cenozoic sedimentary basin developed on the basis of the Paleozoic North China craton,and is an important multi-energy and mineral resource-rich and concentrated location and production area in China.The lower Jurassic Fuxian Formation is the product of filling in the eroded and dissected surface formed by the Indosinian movement on the Triassic uplift.The Wangjiabian kaolin deposit in Jiaxian,Shaanxi province is hosted in the sandstone-claystone structure of"the fine Fuxian"of the Lower Jurassic Fuxian Forma-tion in the eastern margin of Ordos Basin,with great potential for mineral exploration.However,the geological characteristics,ore deposit genesis,and resource utilization of the deposit are still unclear,which restricts the ex-ploration and development of kaolin deposit in this area.Based on the geological characteristics of this kaolin deposit,this paper conducted tests the chemical composition of SiO_(2)、Al_(2)O_(3)、Fe_(2)O_(3)、TiO_(2)、K_(2)O、Na_(2)O、CaO、MgO、MnO,volatile loss,whiteness and other physical properties,as well as the firing shrinkage rate,heat resis-tance,plasticity index,dry shrinkage rate,firing temperature and other physical properties,discussed the genesis and tectonic setting,summarized the exploration indicators,preliminarily evaluated the quality of the ore stone,and suggestions for resource utilization were proposed.

关 键 词：王家砭高岭土矿 鄂尔多斯盆地 地质特征 矿床成因 利用方向 陕西佳县 

分 类 号：P611.2[天文地球—矿床学] P581[天文地球—地质学]