A new seismic velocity model for the Moon from a Monte Carlo inversion of the Apollo lunar seismic data
A new seismic velocity model for the Moon from a Monte Carlo inversion of the Apollo lunar seismic data
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DOI：
10.1029/1999gl008452
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发表时间：
2000-06
影响因子：
5.2
通讯作者：
Amir Khan;K. Mosegaard;Kaare Lund Rasmussen
中科院分区：
文献类型：
--
作者：
Amir Khan;K. Mosegaard;Kaare Lund Rasmussen
对阿波罗月球地震数据的重新分析以及随后对P波和S波到达时间的逆蒙特卡罗方法的应用导致了比以前更详细的月球速度结构。在45±5 km深度处，速度从地表向下到地壳底部逐渐增加。结果进一步表明，一个延伸至560±15 km深度的恒速上地幔，以1.0 km/s的速度增量与一个更复杂的高速中地幔分离。此外，月震的位置也得到了改善。浅层月震的深度范围为50-220公里。大多数深月震集中在850-1000公里的深度范围内，有一个明显而尖锐的下边界。
A reanalysis of the Apollo lunar seismic data and the subsequent application of an inverse Monte Carlo method to P and S‐wave arrival times has resulted in a more detailed lunar velocity structure than previously obtainable. The velocity is seen to increase from the surface down to the base of the crust at 45±5 km depth. The results furthermore indicate a constant velocity upper mantle extending to 560±15 km km depth, separated from a more complex high velocity middle mantle by an increase in velocity of 1.0 km/s. In addition, the moonquake locations have been improved. The shallow moonquakes are found to be located in the depth range 50–220 km. The majority of deep moonquakes are concentrated in the depth range 850–1000 km with an apparently rather sharp lower boundary.