geosynclinen.

Brit.

/ˌdʒiːə(ʊ)ˈsɪŋklʌɪn/, U.S.

/ˌdʒioʊˈsɪŋˌklaɪn/

Origin: Formed within English, by compounding. Etymons: geo- comb. form, syncline n. at synclinal adj. and n. Derivatives.

Etymology: < geo- comb. form + syncline n. at synclinal adj. and n. Derivatives. Compare German Geosynkline (1873 in an abstract of the source cited in quot. 1873 at geosynclinal n., translating geosynclinal n.). Compare earlier geosynclinal n.

Geology.

A large-scale basin or trough in the earth's crust containing sedimentary and volcanic deposits of great thickness, formerly hypothesized to have formed mountain chains by folding and uplifting. Contrasted with geanticline n. Cf. earlier geosynclinal n.Once regarded as a key element in theories of mountain-building, the concept of the geosyncline lost its importance with the discovery of plate tectonics and continental drift.

ΘΚΠ

the world > the earth > structure of the earth > structural features > fold or dip > [noun] > geosyncline

geosynclinal1873

geosyncline1883

parageosyncline1923

orthogeosyncline1936

eugeosyncline1942

miogeosyncline1942

miogeocline1966

eugeocline1972

1883 J. D. Dana New Text-bk. Geol. (ed. 4) ii. 56 Bendings of the earth's crust, geanticline an upward bend, and geosyncline [ed. 3, 1874: geosynclinal] a downward bend. These words are from the Greek for earth and the words anticline and syncline.

1896 Proc. Amer. Philos. Soc. 35 214 The total thickness of the sediments in this geosyncline is enormous—24,000 feet.

1925 J. Joly Surface-hist. Earth v. 85 The geosyncline wherein the Cordilleras of N. America were cradled extended from the Gulf of Mexico to the Arctic Ocean.

1976 Philos. Trans. (Royal Soc.) A. 280 643 They [sc. sediments] rest on metamorphosed Archean to Lower Proterozoic rocks of the Pine Creek geosyncline.

1990 P. Kearey & F. J. Vine Global Tectonics i. 6 Some workers retain geosynclinal terminology to describe sedimentary associations.

2005 Jrnl. Paleontol. 79 378/1 Both..areas are located within the transitional belt between the active geosyncline and the adjacent stable platform.

2009 Sun Herald (Biloxi, Mississippi) (Nexis) 18 July Do you remember the concept of geosynclines, the absurd notion of the way mountain chains were formed?

This entry has been updated (OED Third Edition, March 2012; most recently modified version published online March 2022).

单词	geosyncline
释义	geosynclinen. Brit. /ˌdʒiːə(ʊ)ˈsɪŋklʌɪn/, U.S. /ˌdʒioʊˈsɪŋˌklaɪn/ Origin: Formed within English, by compounding. Etymons: geo- comb. form, syncline n. at synclinal adj. and n. Derivatives. Etymology: < geo- comb. form + syncline n. at synclinal adj. and n. Derivatives. Compare German Geosynkline (1873 in an abstract of the source cited in quot. 1873 at geosynclinal n., translating geosynclinal n.). Compare earlier geosynclinal n. Geology. A large-scale basin or trough in the earth's crust containing sedimentary and volcanic deposits of great thickness, formerly hypothesized to have formed mountain chains by folding and uplifting. Contrasted with geanticline n. Cf. earlier geosynclinal n.Once regarded as a key element in theories of mountain-building, the concept of the geosyncline lost its importance with the discovery of plate tectonics and continental drift. ΘΚΠ the world > the earth > structure of the earth > structural features > fold or dip > [noun] > geosyncline geosynclinal1873 geosyncline1883 parageosyncline1923 orthogeosyncline1936 eugeosyncline1942 miogeosyncline1942 miogeocline1966 eugeocline1972 1883 J. D. Dana New Text-bk. Geol. (ed. 4) ii. 56 Bendings of the earth's crust, geanticline an upward bend, and geosyncline [ed. 3, 1874: geosynclinal] a downward bend. These words are from the Greek for earth and the words anticline and syncline. 1896 Proc. Amer. Philos. Soc. 35 214 The total thickness of the sediments in this geosyncline is enormous—24,000 feet. 1925 J. Joly Surface-hist. Earth v. 85 The geosyncline wherein the Cordilleras of N. America were cradled extended from the Gulf of Mexico to the Arctic Ocean. 1976 Philos. Trans. (Royal Soc.) A. 280 643 They [sc. sediments] rest on metamorphosed Archean to Lower Proterozoic rocks of the Pine Creek geosyncline. 1990 P. Kearey & F. J. Vine Global Tectonics i. 6 Some workers retain geosynclinal terminology to describe sedimentary associations. 2005 Jrnl. Paleontol. 79 378/1 Both..areas are located within the transitional belt between the active geosyncline and the adjacent stable platform. 2009 Sun Herald (Biloxi, Mississippi) (Nexis) 18 July Do you remember the concept of geosynclines, the absurd notion of the way mountain chains were formed? This entry has been updated (OED Third Edition, March 2012; most recently modified version published online March 2022). < n.1883
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