subject: Where Can You Find The Fireclay Resource? [print this page] The most important minerogenetic epochs of fire-clay in China is Middle-Late Carboniferous. The fireclay occurrences are widely distributed with persistent horizons and a large scale. The ore layers occur in the basal part of the Upper Carboniferous or in Middle Carboniferous Benxi Group and are located on the erosional surface of Ordovician or Cambrian Carbonate rocks. High-alumina clay is the Chief ore type. Hard clay is also important, and there is a certain amount of soft clay. They are mainly distributed in Shanxi, Henan, Hebei, Inner Mongolia, Guizhou and Shaanxi. The Late Permian Epoch was an important minerogenetic epoch for hard clay in China. Fireclay occurrs in the middle part of the Upper Permian and is widespread and persistent stratigraphically. The occurrences are mainly distributed in Shandong, Anhui, Fujian, Zhejiang, Jilin, and Liaoning. The fireclay deposits formed in the Tertiary minerogenetic epoch are large and mainly contain soft clay. Fireclay layers occur in the Tertiary Shulan Group, underlain unconfor-mably by the Hercynian granite and the Cretaceous. It is the product of formation of the graben basin. The deposits of this type are mainly distributed in Northeast China, such as the Shuiquliu deposit in Jilin and the Huanghuabeishan deposit in Heilongjiang.Henan Hongxing Mining Machinery Co., Ltd is the professional manufacturer of complete sets of mining machinery, for example,jaw breakermobile crushing station Welcome all of you to visit our official website.ore vibrating feederhttp://www.hxjqchina.com/product-list_14.html In space, fireclay in China is mainly distributed in North China and its adjacent areas, such as Shanxi, Hebei, Inner Mongolia, Henan and Shandong. There are also some large and medium-sized fireclay deposits in Guizhou, Sichuan and Hubei in Southern China. Such distribution is mainly controlled by tectonic and paleogeographical conditions. Tectonically, the deposits of industrial value are all distributed in tectonically stable regions inside platforms. The long period of mineralization was benefitial to the enrichment of ore substances, resulting in the formation of good-quality and large-sized fireclay deposits. In terms of the paleogeographical locations the deposits of industrial value are mostly distributed on edges of cratons or of areas sustained long-continued denudation. The most favorable geographical locations were bays on edges of cratons, lake basins, swamps and lagoons in the paralic plains and restricted sea basin with barriers. In terms of the time and space of mineralization, they were mostly deposited in the initial stage of transgression after long-term interruption and on the bottom of transgressive overlapping deposits.
