impactiten.

/ɪmˈpaktʌɪt/

Etymology: < impact n. + -ite suffix¹, after tektite n.

Geology.

Any piece of glassy material formed in or around a meteorite crater by the heat of impact.

ΘΚΠ

the world > the earth > structure of the earth > constituent materials > stone > a stone > [noun] > meteorite > meteorite material

impactite1940

1940 V. E. Barnes N. Amer. Tektites in Univ. Texas Publ. no. 3945, p. 558 Spencer's meteorite splash origin..is valid for the formation of certain glasses. Glasses of this type will be distinguished in general from most of those now included under tektites. These meteorite splashes should be given a distinctive name such as ‘impactites’. This name was suggested by Dr. H. B. Stenzel.

1960 I. Vidziunas tr. E. L. Krinov Princ. Meteoritics vii. 435 This presence of numerous fragments of impactites in the area of meteoritic craters served as a basis for considering these objects to be fragments of fused terrestrial quartz sand.

1964 New Scientist 16 Jan. 160/1 The expert can easily distinguish tektites from..impactites (silica glass found around some meteorite craters).

This entry has not yet been fully updated (first published 1976; most recently modified version published online June 2018).

单词	impactite
释义	impactiten. /ɪmˈpaktʌɪt/ Etymology: < impact n. + -ite suffix¹, after tektite n. Geology. Any piece of glassy material formed in or around a meteorite crater by the heat of impact. ΘΚΠ the world > the earth > structure of the earth > constituent materials > stone > a stone > [noun] > meteorite > meteorite material impactite1940 1940 V. E. Barnes N. Amer. Tektites in Univ. Texas Publ. no. 3945, p. 558 Spencer's meteorite splash origin..is valid for the formation of certain glasses. Glasses of this type will be distinguished in general from most of those now included under tektites. These meteorite splashes should be given a distinctive name such as ‘impactites’. This name was suggested by Dr. H. B. Stenzel. 1960 I. Vidziunas tr. E. L. Krinov Princ. Meteoritics vii. 435 This presence of numerous fragments of impactites in the area of meteoritic craters served as a basis for considering these objects to be fragments of fused terrestrial quartz sand. 1964 New Scientist 16 Jan. 160/1 The expert can easily distinguish tektites from..impactites (silica glass found around some meteorite craters). This entry has not yet been fully updated (first published 1976; most recently modified version published online June 2018). < n.1940
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