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您的检索式：作者名="SI Qinghong"
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| 1 | Genesis of sandstone-type uranium deposits along the northern margin of the Ordos Basin,China显示文摘Sandstone-type U mineral resources are among the important sources for nuclear energy.The U deposits in the Ordos Basin in China form part of the northern segment of the sandstone-hosted Central Asian Uranium MegaProvince.Two types of mineralizations are recognized in this basin:'phreatic permeable type'and'interlayer permeable type',both exhibiting features equivalent to roll-front subtypes.The'interlayer permeable type'is widely accepted as the dominant mineralization type for sandstone-type uranium deposits within large-scale basins,also designated as the'interlayer oxidation zone type',based on the horizontal color zoning model representing changing redox conditions.Here we synthesize data from several drill holes within the Ordos Basin,which suggest that major Mesozoic tectonic movements controlled the evolution of the sedimentary system in the basin.These tectonic movements contributed to the formation of three angular unconformities and four parallel unconformities as inferred from the stratigraphic relationships.In addition,other features such as vertical color zoning,paleo-channel controlled tabular or lentoid ore bodies(without roll-type)and a group interlayer horizontal zoning of altered minerals are also documented.Sequence stratigraphic analysis indicates that the Ordos Basin generally witnessed four cycles of water level variations during Mesozoic.During the variations,three high water level and three low water level events were recorded.Biological characteristics imply that the Ordos Basin went through multiple arid to humid climatic evolutions during Mesozoic.Combining the newly documented features with some novel concepts on the hydrodynamic mechanism for supergene ore-forming fluids,we propose a metallogenic model which invokes the importance of tectonic movements and water level fluctuations to explain the genesis of uranium deposits along the northern margin of the Ordos Basin. | Ruoshi Jin Xueming Teng Xiaoguang Li Qinghong Si Wei Wang | 2020 | Geoscience Frontiers2020，11，1： | 13 |
| 2 | The First Discovery of a Large Sandstone-type Uranium Deposit in Aeolian Depositional Environment显示文摘The exploration depth of sandstone-type uranium deposits worldwide is mostly less than 700 m,and most of them occur in strata of fluvial facies(Adams et al.,1981;Jin et al.,2016;Hou et al.,2017).Only a few small uranium deposits have been reported in aeolian depositional environments(Isachsen et al.,1955;Li et al.,2001).In the Pcngyang Jingchuan region of the southwestern Ordos Basin,uranium ore bodies with large thickness and high grade in the aeolian sandstone of the Luohe Formation were newly found at depths from 700 to 1500 m,which have laid the foundation for increasing the uranium resources significantly in the Ordos Basin. | MIAO Peisen JIN Ruoshi LI Jianguo ZHAO Hualei CHEN Lulu CHEN Yin SI Qinghong | 2020 | Acta Geologica Sinica(English Edition)2020，94，2： | 12 |
| 3 | Facile carbonaceous microsphere templated synthesis of Co3O4 hollow spheres and their electrochemical performance in supercapacitors显示文摘 | Hongmei Du Lifang Jiao Qinghong Wang Jiaqin Yang Lijing Guo Yuchang Si Yijing Wang Huatang Yuan | 2013 | Nano Research2013，6，2： | 5 |
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