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Outline
At room temperature, in-situ high-pressure energy dispersive X-ray diffraction (EDXD) inspections on beryl has been carried out using diamond anvil cell (DAC) device with synchrotron radiation source. The maximal pressure in the experiment is 19.2 GPa. In the range of experimental pressure, no evidence for the phase transition of beryl was observed. However, the axial compressibility along c axis is larger than that along a axis. The volume compressibility could be described with Murnaghan equation of state in the range of room pressure to 9.3 GPa, while in 9.3~19.2 GPa, the volume compressibility shifts and increases with pressure in a nearly linear relationship.
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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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