P and S wave delays beneath intraplate volcanic ridges and gravity lineations near the East Pacific Rise
P and S wave delays beneath intraplate volcanic ridges and gravity lineations near the East Pacific Rise
复制标题
板内火山脊下方的 P 波和 S 波延迟以及东太平洋隆起附近的重力线状
DOI：
10.1029/2006jb004392
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发表时间：
2007
影响因子：
--
通讯作者：
S. Webb
中科院分区：
文献类型：
--
作者：
N. Harmon;D. Forsyth;R. Lamm;S. Webb
重力线理板内熔融岩石学和地震勘探（GLIMPSE）探讨了两个板内，非热点脊系统与重力线理在南太平洋中部的起源。我们使用GLIMPSE实验中部署的为期11个月的海底地震仪（OBS），确定了该地区的平均P和S台站延迟。在整个阵列中，P波和S波的台站延迟分别为1.22 s和2.13 s。超低剪切速度的存在（
The Gravity Lineations Intraplate Melting Petrology and Seismic Expedition (GLIMPSE) explored the origin of two intraplate, non–hot spot ridge systems associated with gravity lineations in the south central Pacific. Using the 11 month ocean bottom seismometer (OBS) deployment of the GLIMPSE experiment, we determined the average P and S station delays for the region. Across the array, station delays varied by 1.22 s for P waves and 2.13 s for S waves. The presence of ultraslow shear velocity (