Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A usually elongate, basinlike depression along the edge of a continent, in which a thick sequence of sediments and volcanic deposits has accumulated.

from The Century Dictionary.

  • noun In geology, a considerable tract in which the strata are bent into a great trough with many minor undulations on the flanks.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun geology A large, linear depression in the Earth's crust in which sediment accumulates.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

Back-formation from geosynclinal.

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Examples

  • The park's principal geomorphic feature is the north-east to south-east geosyncline which is surrounded by raised folds and high mountains.

    Darién National Park, Panama 2008

  • "geosyncline," a vast trough, or cradle, being slowly filled with sediment brought down by the rivers from the adjoining shores.

    Time and Change John Burroughs 1879

  • Well, where it faltered was at the edge of a geosyncline, the orogenesis is much later than this area.

    Cattle Town 2010

  • This ecoregion is relatively young, perhaps less than 10,000 years old, and developed in a great geosyncline between the Guiana Plateau and the Andes Range.

    Llanos 2007

  • Well, where it faltered was at the edge of a geosyncline, the orogenesis is much later than this area.

    Dinosaur Planet McCaffrey, Anne 1978

  • "Evidently then," continued the professor, "the atoll is simply an annular terminal moraine of detritus shed alluvially into the sea, thus leaving a geosyncline of volcanic ash embedded with an occasional trilobite and the fragments of scoria, upon which we now stand."

    The Cruise of the Kawa 1911

  • Mesozoic times had collected in the geosyncline formed by their own ever increasing weight.

    The Birth-Time of the World and Other Scientific Essays John Joly 1895

  • Again, the ancient and modern volcanoes and earthquakes of Europe are associated with the geosyncline of the greater Mediterranean, the

    The Birth-Time of the World and Other Scientific Essays John Joly 1895

  • When yielding has begun in any geosyncline, and the materials are faulted and overthrust, there results a considerably increased thickness.

    The Birth-Time of the World and Other Scientific Essays John Joly 1895

  • Now, let us suppose, in the trough of the geosyncline, and upon the top of the normal layer, a deposit of, say, 10 kilometres (6.2 miles) of sediments is formed during a long period of continental denudation.

    The Birth-Time of the World and Other Scientific Essays John Joly 1895

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