英语词汇“orthoquartzite”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

orthoquartzite n.

Brit.

/ˌɔːθə(ʊ)ˈkwɔːtsʌɪt/

U.S.

/ˌɔrθoʊˈkwɔrtˌsaɪt/

Geology (originally) a quartzite formed from sandstone by infiltration and pressure; (now) an unmetamorphosed sedimentary rock consisting of quartz grains cemented with silica.

ΚΠ

1921 Jrnl. Geol. (Chicago) 29 655 By orthoquartzite is meant rock cemented only through infiltration and pressure.

1947 Jrnl. Geol. (Chicago) 55 340/1 Perhaps the names ‘orthoquartzite’ and ‘quartzose sandstone’ would safeguard against the misconception that they are metamorphic rocks.

1974 W. R. Hamilton et al. Hamlyn Guide Minerals Rocks & Fossils 194 Rocks composed almost wholly of quartz grains with a silica cement are known as ‘pure’ sandstones or orthoquartzites.

2001 Sedimentary Geol. 141–2 255 Seas transgressed onto the craton..in Jatulian time as evidenced by widespread orthoquartzites (including tidalites) and stromatolitic carbonates.

单词	orthoquartzite
释义	> as lemmas orthoquartzite orthoquartzite n. Brit. /ˌɔːθə(ʊ)ˈkwɔːtsʌɪt/ , U.S. /ˌɔrθoʊˈkwɔrtˌsaɪt/ Geology (originally) a quartzite formed from sandstone by infiltration and pressure; (now) an unmetamorphosed sedimentary rock consisting of quartz grains cemented with silica. ΚΠ 1921 Jrnl. Geol. (Chicago) 29 655 By orthoquartzite is meant rock cemented only through infiltration and pressure. 1947 Jrnl. Geol. (Chicago) 55 340/1 Perhaps the names ‘orthoquartzite’ and ‘quartzose sandstone’ would safeguard against the misconception that they are metamorphic rocks. 1974 W. R. Hamilton et al. Hamlyn Guide Minerals Rocks & Fossils 194 Rocks composed almost wholly of quartz grains with a silica cement are known as ‘pure’ sandstones or orthoquartzites. 2001 Sedimentary Geol. 141–2 255 Seas transgressed onto the craton..in Jatulian time as evidenced by widespread orthoquartzites (including tidalites) and stromatolitic carbonates. extracted from ortho-comb. form < as lemmas
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> as lemmas