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福建省顺昌水泥厂于1985年9月23日在洋姑山石灰岩矿,进行××××吨炸药量的大爆破。布设九个地震台的剖面进行观测,采用单层均匀介质地壳模型,计算出赤水等九个点的地壳厚度、地壳速度V_p11=6.25±0.04公里/秒及上地幔顶部的地震波传播速度V_(pn)=8.43±0.19公里/秒求得地壳平均厚度约33公里。
Shunchang Cement Plant in Fujian Province on September 23, 1985 at the Lugunshan Limestone Mine, ×××× tons of explosives large blasting. Nine sections of seismic stations were laid for observation. Crustal thickness was measured at nine sites such as Chishui using crustal model with uniform crust. The crustal velocity V_p11 = 6.25 ± 0.04 km / s and the seismic wave velocity V_ (pn) at the top of the upper mantle ) = 8.43 ± 0.19 km / s obtained the average crust thickness of about 33 km.