constructive margin
constructive margin (constructive boundary) The zone between two lithospheric plates which are diverging and consequently where new crust is being formed. Constructive plate margins are associated with shallow-focus earthquakes, high heat flow (up to ten times the average), and tholeiitic basalt (see THOLEIITE). Constructive plate margins develop oceanic ridges. See SEA-FLOOR SPREADING.
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construct , con·struct • v. / kənˈstrəkt/ [tr.] build or erect (something, typically a building, road, or machine). ∎ form (an idea or theory) by bringing togeth… Constructive , con·struc·tive / kənˈstrəktiv/ • adj. 1. serving a useful purpose; tending to build up: constructive criticism. 2. Law derived by inference; implied… Hochtief Ag , Opernplatz 2
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Incorporated: 1875… centering , cen·ter·ing / ˈsentəring/ • n. Archit. framing used to support an arch or dome while it is under construction.
centering. Timber framework or mould t… George Alexander Kelly , Kelly, George Alexander
Kelly, George Alexander
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BRIEF… Builder , builder •bidder, consider, Jiddah, kidder, whydah •bewilder, builder, guilder, Hilda, Matilda, St Kilda, Tilda, tilde •Belinda, Cabinda, cinder, Clar…
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constructive margin