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There is a remarkable temperature gradient in the sample cell in the pulse transmission experimental setup on a multi-anvil high pressure apparatus. The elastic wave velocity was corrected by combination of experiment, theory analysis, and computation in terms of the experimental data on temperature distribution in the sample and the linear decrease of temperature dependence of elastic wave velocities in rocks at a given temperature range. The experimental vP in amphibolite was corrected by this method and compared with the vP without correction: the absolute correction value turned greater as the temperature increased; at 530 ℃, the greatest correction of velocities in the sample X and sample Y were up to -0.270 km/s and -0.118 km/s with the decreases of 3.3% and 1.5%, respectively. This method improves the accuracy of vP measurement in high pressure and temperature experiments, which is useful to interpret geophysical data by combining the experimental results.
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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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