|
|
|
| Temporal and spatial distribution of uranium in northern Hebei Province |
| SHI Shu-Juan1, 2, CHEN Jun-Wei1, DAI Yong-Gang1, FENG Xiao-Hui1 |
1.Hebei Institute of Geophysical Exploration,Langfang 065000,China;
2.Post-doctoral Scientific Research Workstation,Hebei Bureau of Geology and Mineral Resources Exploration,Shijiazhuang 050081,China |
|
|
|
|
Abstract Northern Hebei Province is a prospective area of volcanic rock-hosted uranium deposits. Based on the 1∶200 000 stream sediment and regional rock data, this paper discusses the spatial and temporal distribution of U in northern Hebei Province in order to provide geochemical information for uranium exploration. In spatial distribution, the high background values of uranium are distributed in the late Variscan folded zone in Inner Mongolia and Inner Mongolia axis, and are focused on the zone of Shiyaozi in Chongli County-Senjitu in Fengning County-north Guyuan County-north Weichang County. Uranium geochemical abnormal belt corresponds with the south of the Hongshanzi metallogenic belt. The formation of U geochemical anomaly is controlled by geological bodies which are intermediate-acid rock mass of Yanshanian epoch and acid volcanic rock of Zhangjiakou strata and Dabeigou strata, NE-trending faults and volcanic basins. Uranium geochemical anomalies are closely related to uranium deposits. Uranium deposits are located along the uranium anomaly belt, and hence uranium anomalies can be used as uranium ore prospecting indicators. In temporal distribution, U values have a tendency to increase and are enriched in late Jurassic and early Cretaceous strata, but are low in Archean and Proterozoic strata.
|
|
Received: 19 October 2016
Published: 20 August 2017
|
|
|
|
|
|
| [1] |
WANG Bin, LUO Yan-Jun, MENG Guang-Lu, ZHANG Jing, ZHANG Hai-Di, CHEN Bo, HE Zi-Xin. Potential assessment of gold, copper, lead, zinc, tungsten, and tin deposits in Kyrgyzstan based on 1∶1 000 000 scale geochemical data[J]. Geophysical and Geochemical Exploration, 2022, 46(1): 58-69. |
| [2] |
ZHAO Ze-Lin, LI Jun-Jian, ZHANG Tong, NI Zhen-Ping, PENG Yi, SONG Li-Jun. Geological characteristics and prospecting direction of rare earth element deposits in North China[J]. Geophysical and Geochemical Exploration, 2022, 46(1): 46-57. |
|
|
|
|
