Longmyndianadj.n.

Brit.

/lɒŋˈmɪndɪən/, U.S.

/ˌlɔŋˈmɪndiən/,

/ˌlɑŋˈmɪndiən/

Origin: From a proper name, combined with an English element. Etymons: proper name Long Mynd , -ian suffix.

Etymology: < Long Mynd, the name of a heathland plateau in the Shropshire Hills of western England + -ian suffix.

Geology.

A. adj.

Designating a thick series of Late Precambrian sedimentary rocks whose main outcrop forms the hills of the Long Mynd in southern Shropshire.

ΘΚΠ

the world > the earth > structure of the earth > age or period > stratigraphic units > [adjective] > pre-Cambrian > specific

Huronian1854

Lewisian1859

Archaean1872

Torridon1873

Keweenawan1876

Pebidian1877

Malvernian1879

Longmyndian1887

Torridonian1893

Moinian1938

Laxfordian1950

1856 Q. Jrnl. Geol. Soc. 12 248 It is impossible to regard them as anything but a part of the Longmynd series.]

1887 Rep. Brit. Assoc. Advancem. Sci. 1886 662 The basement beds of this series rest unconformably upon all the older rocks of the district—upon the so-called Uriconian, Longmyndian, Wrekin quartzite, and Shineton shales.

1888 C. Callaway in Trans. Shropshire Archæol. & Nat. Hist. Soc. 11 240 The Longmyndian conglomerates are largely derived from the Uriconian.

1929 J. W. Evans & C. J. Stubblefield Handbk. Geol. Great Brit. iii. 20 The outcrop of the Longmyndian Rocks at Church Stretton forms the wild, moorland tract called the Longmynd.

1967 D. H. Rayner Stratigr. Brit. Isles ii. 45 The structures in the Longmyndian pediments..suggest strongly that the western part of the Wentnor outcrops are inverted.

B. n.

The Longmyndian series of rocks.

ΚΠ

1969 G. M. Bennison & A. E. Wright Geol. Hist. Brit. Isles iii. 67 The Longmyndian is in the form of a very large syncline.

2010 J. P. Rafferty Geochronol., Dating & Precambrian Time iii. 225 The Western Longmyndian consists of the Wentnor Series, purple sandstones, conglomerates, and some greenish siltstones and shales.

This entry has been updated (OED Third Edition, June 2016; most recently modified version published online March 2022).

单词	longmyndian
释义	Longmyndianadj.n. Brit. /lɒŋˈmɪndɪən/, U.S. /ˌlɔŋˈmɪndiən/, /ˌlɑŋˈmɪndiən/ Origin: From a proper name, combined with an English element. Etymons: proper name Long Mynd , -ian suffix. Etymology: < Long Mynd, the name of a heathland plateau in the Shropshire Hills of western England + -ian suffix. Geology. A. adj. Designating a thick series of Late Precambrian sedimentary rocks whose main outcrop forms the hills of the Long Mynd in southern Shropshire. ΘΚΠ the world > the earth > structure of the earth > age or period > stratigraphic units > [adjective] > pre-Cambrian > specific Huronian1854 Lewisian1859 Archaean1872 Torridon1873 Keweenawan1876 Pebidian1877 Malvernian1879 Longmyndian1887 Torridonian1893 Moinian1938 Laxfordian1950 1856 Q. Jrnl. Geol. Soc. 12 248 It is impossible to regard them as anything but a part of the Longmynd series.] 1887 Rep. Brit. Assoc. Advancem. Sci. 1886 662 The basement beds of this series rest unconformably upon all the older rocks of the district—upon the so-called Uriconian, Longmyndian, Wrekin quartzite, and Shineton shales. 1888 C. Callaway in Trans. Shropshire Archæol. & Nat. Hist. Soc. 11 240 The Longmyndian conglomerates are largely derived from the Uriconian. 1929 J. W. Evans & C. J. Stubblefield Handbk. Geol. Great Brit. iii. 20 The outcrop of the Longmyndian Rocks at Church Stretton forms the wild, moorland tract called the Longmynd. 1967 D. H. Rayner Stratigr. Brit. Isles ii. 45 The structures in the Longmyndian pediments..suggest strongly that the western part of the Wentnor outcrops are inverted. B. n. The Longmyndian series of rocks. ΚΠ 1969 G. M. Bennison & A. E. Wright Geol. Hist. Brit. Isles iii. 67 The Longmyndian is in the form of a very large syncline. 2010 J. P. Rafferty Geochronol., Dating & Precambrian Time iii. 225 The Western Longmyndian consists of the Wentnor Series, purple sandstones, conglomerates, and some greenish siltstones and shales. This entry has been updated (OED Third Edition, June 2016; most recently modified version published online March 2022). < adj.n.1887
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