释义 |
Mohorovičić discontinuity Geol.|məʊhəʊˈrəʊvɪtʃɪtʃ| Also Mohorovicic discontinuity. [f. the name of A. Mohorovičić (1857–1936), Yugoslav seismologist.] The discontinuity between the earth's crust and the mantle which is believed to exist at a depth of about 10–12 kilometres under the ocean beds and 40–50 kilometres under the continents.
1936J. B. Macelwane in Macelwane & Sohon Introd. Theoret. Seismol. I. viii. 204 We shall speak of this major boundary above which the various surficial layers lie as the Mohorovičić discontinuity, after A. Mohorovičić who discovered it. 1956[see Moho3]. 1958[see mantle n. 11]. 1971I. G. Gass et al. Understanding Earth iii. 58/2 On the basis of seismic velocities, the mantle is usually divided into three regions—from the Mohorovicic discontinuity down to 400 km, from 400 to 1000 km, and from 1000 km to the core boundary. |