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单词 sparagmite
释义

sparagmiten.

/ˈsparəɡmʌɪt/
Etymology: < German sparagmit (J. Esmark Reise von Christiania nach Drontheim, etc. (1829) 25), < Greek σπάραγμα fragment, piece torn off: see -ite suffix1.
Geology.
A generic term for the feldspathic sandstones (chiefly arkoses), conglomerates, and other fragmental rocks which occur in late Pre-Cambrian formations in Scandinavia.
ΘΚΠ
the world > the earth > structure of the earth > age or period > stratigraphic units > [noun] > pre-Cambrian formations
Huronian1857
Labradorian1870
Keweenawan1876
sparagmite1882
Keewatin1886
Torridonian1893
Laxfordian1950
1866 Geol. Mag. III. 384 (table) ‘Spragmitic’ strata— conglomerates, Schists, Dolomitic beds.]
1882 A. Geikie Text-bk. Geol. 657 In central and northern Norway the Archæan gneiss is overlaid by reddish and grey sandstones and conglomerates (Sparagmite), with schists, quartzites, and limestones.
1930 B. N. Peach & J. Horne Chapters Geol. Scotl. iii. 72 The Sparagmite of Scandinavia is an arkose resembling the dominant type of the Torridon Sandstone.
1979 Nature 25 Jan. 290/1 Micaceous meta~arkoses (sparagmites) have, in places, a basal conglomerate resting unconformably on the Basal gneisses.
This entry has not yet been fully updated (first published 1933; most recently modified version published online June 2018).
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n.1882
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