Full
Outline
Based on the travel time data of 4 501 earthquakes recorded by 55 seismic stations of the Hubei seismic network from January 2008 to June 2024, the three-dimensional P-wave and S-wave velocity structures and earthquake relocation results of Hubei and its adjacent areas were obtained using the double-difference tomography method. The results show that earthquakes are mainly distributed in high P-wave and S-wave velocity zones and the transition zones between high and low velocity anomalies. The Three Gorges area is a cluster of seismicity, while earthquakes in other regions are generally distributed linearly along fault strikes. The P-wave and S-wave velocity distribution in the upper crust of the study area are basically consistent with the surface geological tectonic framework. The P-wave and S-wave velocity distribution in the middle and lower crust are roughly bounded by the north-south gravity lineament, with high velocity anomalies on the east side and low velocity anomalies on the west side, reflecting the differences in crustal composition and thickness across the lineament. The relatively low P-wave and S-wave velocity anomalies in the middle and lower crust of the Dabie orogenic belt may represent molten mantle materials intruding into the crust along the Tan-Lu fault zone.
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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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