Intermontane Trough

intermontane trough

[¦in·tər¦män‚tān ′trȯf]
(geology)
A subsiding area in an island arc of the ocean, lying between the stable elements of a region.
A basinlike area between mountains.

Intermontane Trough

 

a depression between folded mountain structures of tectonic origin. An intermontane trough arises in the stage of transformation of a geosynclinal area into a folded mountain area (epigeosynclinal, primary orogeny) or during the formation of such areas (epiplatform orogenies) on the continental platforms. They are usually filled with detrital products worn from growing mountains (Molasse). Examples of intermontane troughs are the Kura depression and the Fergana depression.

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