Jurassicadj.n.

Brit.

/dʒᵿˈrasɪk/, U.S.

/dʒəˈræsɪk/

Etymology: < French Jurassique, < Jura (see definition) after Liassic, Triassic.

Geology.

a. Of or pertaining to the Jura mountains: applied to geological formations belonging to the period between the Triassic and the Cretaceous, characterized by the prevalence of oolitic limestone, of which the Jura mountains between France and Switzerland are chiefly formed. Also applied to the period itself and to flora and fauna found in Jurassic formations.

ΘΚΠ

the world > the earth > structure of the earth > age or period > [adjective] > secondary or Mesozoic > Jurassic

Jurassic1831

Bajocian1909

the world > the earth > structure of the earth > age or period > stratigraphic units > [adjective] > secondary or Mesozoic > Jurassic

oolitic1827

Jurassic1831

liassic1833

1831 Proc. Geol. Soc. 1 241 The Jurassic and Alpine limestones.

1833 C. Lyell Princ. Geol. III. 372 Sedimentary formations..as modern as the jurassic or oolite formations.

1847 Q. Jrnl. Geol. Soc. 3 117 A succession of deposits..formed during the Jurassic period.

1851 Q. Jrnl. Geol. Soc. 7 179 But for the ‘plant-beds’ at Gristhorpe, Cloughton, Kiburn, and Whitby, we should know little of the ancient vegetation of the Jurassic period. These localities have supplied, in fact, the types of the Jurassic Flora.

1865 J. Lubbock Prehist. Times ix. 290 The Aube runs through cretaceous and Jurassic strata.

1909 T. C. Chamberlin & R. D. Salisbury Geol.: Shorter Course xxiv. 712 (caption) A group of Jurassic ammonites.

1938 L. D. Stamp Physical Geogr. & Geol. xiii. 207 At the close of the Jurassic period the sea retreated and left a great lake in south-eastern England.

1968 D. A. Robson Sci. Geol. ix. 242 The succession is reminiscent of that of the Carboniferous Coal Measures, except for its distinctive Jurassic flora.

b. absol. as n. The Jurassic system or the Jurassic period.

ΘΚΠ

the world > the earth > structure of the earth > age or period > [noun] > secondary or Mesozoic > Jurassic

Jurassic1831

the world > the earth > structure of the earth > age or period > stratigraphic units > [noun] > secondary or Mesozoic > Jurassic

Jura1829

Jurassic1831

1831 Proc. Geol. Soc. 1 241 Chalk does not exist in the Carpathians, nor could the author recognise it at Cracow, the limestone of which he refers to the Upper Jurassic.

1873 J. W. Dawson Story Earth & Man viii. 189 The Trias is succeeded by a great and complex system of formations, usually known as the Jurassic.

1902 A. J. Jukes-Browne Student's Handbk. Stratigr. Geol. xiv. 331 The Upper Jurassic, again, is an argillaceous series.

1938 A. K. Wells Outl. Hist. Geol. xv. 153 The Lower Jurassic is co-extensive with the Lias, a formation..splendidly exposed in parts of the English coast that enjoy a measure of popularity as sea~side resorts.

1956 W. J. Arkell Jurassic Geol. World i. 3 In the popular imagination the Jurassic is the period of great marine reptiles and flying dragons.

1973 Nature 13 July 92/1 Rifting probably started in the Triassic and by the Jurassic a reasonably large Tethyan Ocean was in existence.

This entry has not yet been fully updated (first published 1901; most recently modified version published online March 2022).

单词	jurassic
释义	Jurassicadj.n. Brit. /dʒᵿˈrasɪk/, U.S. /dʒəˈræsɪk/ Etymology: < French Jurassique, < Jura (see definition) after Liassic, Triassic. Geology. a. Of or pertaining to the Jura mountains: applied to geological formations belonging to the period between the Triassic and the Cretaceous, characterized by the prevalence of oolitic limestone, of which the Jura mountains between France and Switzerland are chiefly formed. Also applied to the period itself and to flora and fauna found in Jurassic formations. ΘΚΠ the world > the earth > structure of the earth > age or period > [adjective] > secondary or Mesozoic > Jurassic Jurassic1831 Bajocian1909 the world > the earth > structure of the earth > age or period > stratigraphic units > [adjective] > secondary or Mesozoic > Jurassic oolitic1827 Jurassic1831 liassic1833 1831 Proc. Geol. Soc. 1 241 The Jurassic and Alpine limestones. 1833 C. Lyell Princ. Geol. III. 372 Sedimentary formations..as modern as the jurassic or oolite formations. 1847 Q. Jrnl. Geol. Soc. 3 117 A succession of deposits..formed during the Jurassic period. 1851 Q. Jrnl. Geol. Soc. 7 179 But for the ‘plant-beds’ at Gristhorpe, Cloughton, Kiburn, and Whitby, we should know little of the ancient vegetation of the Jurassic period. These localities have supplied, in fact, the types of the Jurassic Flora. 1865 J. Lubbock Prehist. Times ix. 290 The Aube runs through cretaceous and Jurassic strata. 1909 T. C. Chamberlin & R. D. Salisbury Geol.: Shorter Course xxiv. 712 (caption) A group of Jurassic ammonites. 1938 L. D. Stamp Physical Geogr. & Geol. xiii. 207 At the close of the Jurassic period the sea retreated and left a great lake in south-eastern England. 1968 D. A. Robson Sci. Geol. ix. 242 The succession is reminiscent of that of the Carboniferous Coal Measures, except for its distinctive Jurassic flora. b. absol. as n. The Jurassic system or the Jurassic period. ΘΚΠ the world > the earth > structure of the earth > age or period > [noun] > secondary or Mesozoic > Jurassic Jurassic1831 the world > the earth > structure of the earth > age or period > stratigraphic units > [noun] > secondary or Mesozoic > Jurassic Jura1829 Jurassic1831 1831 Proc. Geol. Soc. 1 241 Chalk does not exist in the Carpathians, nor could the author recognise it at Cracow, the limestone of which he refers to the Upper Jurassic. 1873 J. W. Dawson Story Earth & Man viii. 189 The Trias is succeeded by a great and complex system of formations, usually known as the Jurassic. 1902 A. J. Jukes-Browne Student's Handbk. Stratigr. Geol. xiv. 331 The Upper Jurassic, again, is an argillaceous series. 1938 A. K. Wells Outl. Hist. Geol. xv. 153 The Lower Jurassic is co-extensive with the Lias, a formation..splendidly exposed in parts of the English coast that enjoy a measure of popularity as sea~side resorts. 1956 W. J. Arkell Jurassic Geol. World i. 3 In the popular imagination the Jurassic is the period of great marine reptiles and flying dragons. 1973 Nature 13 July 92/1 Rifting probably started in the Triassic and by the Jurassic a reasonably large Tethyan Ocean was in existence. This entry has not yet been fully updated (first published 1901; most recently modified version published online March 2022). < adj.n.1831
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