Full
Outline
Uranium is a strategic mineral resource in China, and geophysical logging plays a crucial role in sandstone type uranium exploration. This study applies various commonly geophysical logging methods to prospect for uranium in the Chepaizi area of the Junggar Basin. Beginning with the logging instruments and methods, we determine favorable prospecting horizons within the Shawan Formation, Taxihe Formation, and Tuguru Group based on statistical analysis of gamma logging result and radioactive background value across different strata and sections within the study area. The 128 Regiment section, as well as its north and southwest parts, are identified as favorable areas for prospecting. Additionally, comprehensive study and interpretation of geophysical logging parameters allow for accurately divide borehole lithology. Abnormal responses from spontaneous potential (SP) curves suggest a relative relationship between drilling fluid and formation water salinity. When combined with apparent resistivity curve analysis, geochemical characteristics of high-salinity formation water within the Shawan Formation target layer are obtained. High-salinity water of Shawan Formation is conducive to oil and gas accumulation, and their migration provide favorable conditions for uranium reduction enrichment and mineralization. Overall, the application of geophysical logging in Chepaizi area proves beneficial for uranium metallogenic analysis and prospecting in this area.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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