Citation: | Mian-ping Zheng, Xian-hua Hou, Yong-sheng Zhang, En-yuan Xing, Hong-pu Li, Hong-wei Yin, Chang-qing Yu, Ning-jun Wang, Xiao-lin Deng, Zhao Wei, Zhong-ying Miao, Jia-ai Zhong, Fan Wang, Fu Fan, Xue-fei Zhang, Xu-ben Wang, Tu-qiang Liu, Wei-gang Kong, 2018. Progress in the investigation of potash resources in western China, China Geology, 1, 392-401. doi: 10.31035/cg2018046 |
Through the study of the geological conditions of potash deposits in China from recent years, a new understanding of potash theories has arisen that appropriate Chinese geological features. Important progress and substantial breakthroughs have been gained in the direction and management of potash prospecting: (1) Important breakthroughs in continental potassium prospecting: The "Quaternary gravel type deep potassium rich brine metallogenic model in western Qaidam" ensures Quaternary deep potassium rich brine prospecting will grow new KCl resources by 350 Mt, providing a resource guarantee for meeting the Chinese demand for sylvite. (2) The Marine facies potash prospecting shows good prospects: the determination of the new type of Triassic polyhalite potash ore deposits in Sichuan provide an important scientific basis for the establishment of exploration planning and the selection of exploration target areas for polyhalite minerals in the Sichuan Basin; The "two-storey potash deposits model" in southwestern Yunnan has been confirmed, which indicates prospects for the exploration of potash in the deeper Marine facies in southwestern Yunnan are likely to be successful. The discovery of a high concentration of rich bromite salt and potash salt in the Paleogene of the Kuqa depression and the southwestern Tarim region provides strong support for the likelihood large-scale potash deposits exist in these regions.
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The Quaternary deep potassium rich brine resource region in the Dalangtan and Heibei depression of the western Qaidam Basin.
Petrological and mineralogical characteristics of saline rock with polyhalite.
Two types of polyhalite ore.
A schematic diagram of the experiment on the dissolution and mining of the new type of polyhalite potash ore (simplified according to Dazhou Heng Cheng Energy (Group) CO., LTD).
Comparison of mineralization of potash bearing strata between the Yangta4 well and the Yangta6 well in the Kuqa depression, Tarim Basin, China.
A section map of the potash-bearing salt layer of the Yangtak tectonic seismic interpretation in the Kuqa depression, Tarim Basin, China.
Well location distribution with abnormal bromine characteristics in the Kuqa depression.
Well location distribution with abnormal bromine characteristics in the northwest Tarim region.