cataclasticadj.

/katəˈklastɪk/

Etymology: < Norwegian kataklas(-struktur) (T. Kjerulf 1885, in Nyt Mag. Naturvidensk. XXIX. 268), < Greek κατά down + κλαστός broken (κλᾶν to break).

Geology.

Designating a structural character due to intense crushing.

ΘΚΠ

the world > the earth > structure of the earth > constituent materials > rock > composite rock > [adjective] > fragmentary

fragmentary1832

pyroclastic1862

clastic1877

fragmental1882

cataclastic1887

autoclastic1891

siliciclastic1961

volcaniclastic1961

1887 J. J. H. Teall in Geol. Mag. 4 493 The structures are of the kind for which Prof. Kjerulf has proposed the term cataclastic. I venture to suggest..that we should distinguish between the three types of clastic rocks at present recognized by using the terms epiclastic, cataclastic and pyroclastic... Cataclastic—Rocks largely composed of fragments produced during the deformation of older rocks by the earth stresses.

1896 J. W. Judd Student's Lyell 560 Many metamorphic rocks exhibit a similar ‘cataclastic’ structure.

1903 A. Geikie Text-bk. Geol. (ed. 4) I. 421 When the temperature is 300° C. or 400° C. no cataclastic structure is observable.

1958 Van Nostrand's Sci. Encycl. (ed. 3) 287/1 Cataclastic..has the same meaning as crush breccias. This term is also applied to the deformation and granulation of minerals such as may take place during dynamic metamorphism.

This entry has not yet been fully updated (first published 1933; most recently modified version published online December 2018).

单词	cataclastic
释义	cataclasticadj. /katəˈklastɪk/ Etymology: < Norwegian kataklas(-struktur) (T. Kjerulf 1885, in Nyt Mag. Naturvidensk. XXIX. 268), < Greek κατά down + κλαστός broken (κλᾶν to break). Geology. Designating a structural character due to intense crushing. ΘΚΠ the world > the earth > structure of the earth > constituent materials > rock > composite rock > [adjective] > fragmentary fragmentary1832 pyroclastic1862 clastic1877 fragmental1882 cataclastic1887 autoclastic1891 siliciclastic1961 volcaniclastic1961 1887 J. J. H. Teall in Geol. Mag. 4 493 The structures are of the kind for which Prof. Kjerulf has proposed the term cataclastic. I venture to suggest..that we should distinguish between the three types of clastic rocks at present recognized by using the terms epiclastic, cataclastic and pyroclastic... Cataclastic—Rocks largely composed of fragments produced during the deformation of older rocks by the earth stresses. 1896 J. W. Judd Student's Lyell 560 Many metamorphic rocks exhibit a similar ‘cataclastic’ structure. 1903 A. Geikie Text-bk. Geol. (ed. 4) I. 421 When the temperature is 300° C. or 400° C. no cataclastic structure is observable. 1958 Van Nostrand's Sci. Encycl. (ed. 3) 287/1 Cataclastic..has the same meaning as crush breccias. This term is also applied to the deformation and granulation of minerals such as may take place during dynamic metamorphism. This entry has not yet been fully updated (first published 1933; most recently modified version published online December 2018). < adj.1887
随便看	witch-doctoring witch-finding witch-fire witch-hunt witch-hunter witch-hunting witch-like witch-lock witch-man witch-mark witch-pap witch-pricker witch-proof witch-ridden witch-riding witch-seeker witch-smelling witch-stone witch-water witch-wife witch-woman witchburner witchburning witchchap witchcraft