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单词 micrite
释义

micriten.

Brit. /ˈmɪkrʌɪt/, U.S. /ˈmɪˌkraɪt/
Origin: Formed within English, by derivation. Etymons: micro- comb. form, -ite suffix1.
Etymology: < micro- comb. form + -ite suffix1, after microcrystalline adj.
Geology.
Microcrystalline calcite present as a matrix material or an interstitial constituent in some kinds of limestone; a limestone consisting chiefly of this.
ΘΚΠ
the world > the earth > structure of the earth > constituent materials > rock > sedimentary rock > [noun] > limestone > others
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stone marrow1681
stone marl1682
saint's head stone1763
Kentish rag1769
watericle1776
kankar1793
Cotham1816
mountain limestone1817
tosca1818
cornstone1819
burr1829
coral-limestone1831
scar-limestone1831
Wenlock limestone1834
bavin1839
curf1839
Solenhofen slate1841
Beer stone1871
miliolite limestone1872
Clipsham1877
reef limestone1884
Hopton wood1888
thermo-calcite1888
Kilkenny marble1930
micrite1959
the world > the earth > minerals > types of mineral > carbonates > [noun] > hexagonal > calcite > varieties
alabasterc1384
agarica1400
alabastrites1582
alabastrite1592
Iceland crystal1673
agaric mineral1728
milk of the moon1728
Iceland spar1771
argentine1795
rock milk1804
slate-spar1804
schieferspar1807
calc-spar1822
wonderstone1824
manganocalcite1852
neotype1854
hislopite1859
aphrite1868
thinolite1879
moonmilk1885
vaterite1913
micrite1959
1959 R. L. Folk in Bull. Amer. Assoc. Petroleum Geologists 43 17 Finally, it was decided to use a composite word, the first part of which refers to the allochem composition...Whether the rock is type I or type II is shown by the second part of the name ‘-sparite’ for those with sparry calcite cement and ‘-micrite’ (pronounced ‘mick-rite’) for those with microcrystalline ooze matrix... Type III limestones, almost entirely ooze, are designated simply as ‘micrite’ without any allochem prefix.
1970 K. C. Jackson Textbk. Lithol. vi. 401 The proportion of micrite in limestone varies from a minor interstitial filling between allochems to the entire rock.
1973 Nature 2 Mar. 41/2 The patch reef, 13 m long and over 2 m high, tongues out to the west into 2 m of thinly bedded calcitic micrites of quiet water origin.
1991 Sea Frontiers Feb. 38/3 The gray cements are made of a more uniform microcrystalline calcium carbonate called micrite. The micrite cements are unorganized masses of interwoven, poorly defined crystals.
This entry has been updated (OED Third Edition, December 2001; most recently modified version published online March 2022).
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n.1959
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