rhombochasmn.

Brit.

/ˈrɒmbə(ʊ)ˌkaz(ə)m/, U.S.

/ˈrɑmboʊˌkæzəm/

Origin: Formed within English, by compounding. Etymons: rhombo- comb. form, chasm n.

Etymology: < rhombo- comb. form + chasm n.

Geology.

A parallel-sided gap in the continental (sialic) crust occupied by basal (simatic) crust, formed when the curve in a fault-plane moves apart.

ΘΚΠ

the world > the earth > structure of the earth > [noun] > crust > discontinuity in crust

rhombochasm1958

sphenochasm1958

1958 S. W. Carey in Continental Drift (Geol. Dept., Univ. of Tasmania, Hobart) 192 Rhombochasm..will be used for a parallel-sided gap in the sialic crust occupied by simatic crust, and interpreted as a dilatation.

1976 Nature 15 Apr. 590/1 Figure 3 a shows a rhombochasm, like the Gulf of California, forming behind the arc and marginal basin fragment.

2001 Jrnl. S. Amer. Earth Sci. 14 539/1 The rhombochasm or pull-apart basin model suggested by Marshall (1984) is based on geometric models of fault basins in other parts of California.

This entry has been updated (OED Third Edition, June 2010; most recently modified version published online March 2022).

单词	rhombochasm
释义	rhombochasmn. Brit. /ˈrɒmbə(ʊ)ˌkaz(ə)m/, U.S. /ˈrɑmboʊˌkæzəm/ Origin: Formed within English, by compounding. Etymons: rhombo- comb. form, chasm n. Etymology: < rhombo- comb. form + chasm n. Geology. A parallel-sided gap in the continental (sialic) crust occupied by basal (simatic) crust, formed when the curve in a fault-plane moves apart. ΘΚΠ the world > the earth > structure of the earth > [noun] > crust > discontinuity in crust rhombochasm1958 sphenochasm1958 1958 S. W. Carey in Continental Drift (Geol. Dept., Univ. of Tasmania, Hobart) 192 Rhombochasm..will be used for a parallel-sided gap in the sialic crust occupied by simatic crust, and interpreted as a dilatation. 1976 Nature 15 Apr. 590/1 Figure 3 a shows a rhombochasm, like the Gulf of California, forming behind the arc and marginal basin fragment. 2001 Jrnl. S. Amer. Earth Sci. 14 539/1 The rhombochasm or pull-apart basin model suggested by Marshall (1984) is based on geometric models of fault basins in other parts of California. This entry has been updated (OED Third Edition, June 2010; most recently modified version published online March 2022). < n.1958
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