oolithn.

Brit.

/ˈəʊəlɪθ/, U.S.

/ˈoʊoʊˌlɪθ/

Forms: 1700s oolithe, 1800s– oolith.

Origin: A borrowing from Latin. Etymon: Latin oolithus.

Etymology: < post-classical Latin oolithus any of the small rounded granules of which oolite is composed (F. E. Brückmann Specimen Physicum Exhibens Historiam Naturalem Oolithi seu Ovariorum Piscium et Concharum in Saxa Mutatorum (1721) 5) < ancient Greek ᾠο- oo- comb. form + λίθος stone (see -lith comb. form). Compare French oolithe (see oolite n.).Brückmann coined scientific Latin oolithus to provide an equivalent to German Rogenstein oolite (1702; < Rogen roe (see rown n.) + Stein stone n.).

Geology.

Any of the small rounded granules of which oolite is composed.

ΘΚΠ

the world > the earth > structure of the earth > constituent materials > rock > sedimentary rock > [noun] > limestone > oolite > oolith

oolith1788

ovulite1847

oolite1851

ooid1918

1788 J. H. De Magellan tr. A. F. Cronstedt Ess. Syst. Mineral. (rev. ed.) I. 76 The Stalagmites..get a mammillary form, whilst the Stalactites acquire a conic figure: the Oolithes [1770 Oolithus; Sw. Oolites] and Pisolites belong to the same species.

1876 C. L. Rominger Geol. Surv. Michigan: Lower Penins. 3 34 In the upper part of the quarry we find an oolith stratum identical with the one in the other locality.

1892 Jrnl. Royal Microsc. Soc. 839 These ooliths are undoubtedly the product of a lime-separating Schizophyte; and the author believes this to be the case with the greater number of the marine calcareous ooliths with a regular zoned and radial structure.

1926 G. W. Tyrrell Princ. Petrol. xiii. 227 The grains are called ooliths and the rock containing them oolite or oolitic limestone. Ooliths generally show a series of concentric coats of calcareous material in which a radiating crystalline structure can often be made out.

1954 J. F. Kirkaldy Gen. Princ. Geol. xiii. 186 If an oolitic limestone is examined under the microscope it is seen that each oolith (or sphere) consists of concentric layers, usually crossed by radiating cracks.

1971 I. G. Gass et al. Understanding Earth i. 31/2 Ooliths are formed in environments where calcite is being precipitated and there is strong and continuous wave action.

2001 Oxoniensia 65 233 The fabric of one sherd includes a number of well-rounded oolith grains.

This entry has been updated (OED Third Edition, June 2004; most recently modified version published online March 2022).

单词	oolith
释义	oolithn. Brit. /ˈəʊəlɪθ/, U.S. /ˈoʊoʊˌlɪθ/ Forms: 1700s oolithe, 1800s– oolith. Origin: A borrowing from Latin. Etymon: Latin oolithus. Etymology: < post-classical Latin oolithus any of the small rounded granules of which oolite is composed (F. E. Brückmann Specimen Physicum Exhibens Historiam Naturalem Oolithi seu Ovariorum Piscium et Concharum in Saxa Mutatorum (1721) 5) < ancient Greek ᾠο- oo- comb. form + λίθος stone (see -lith comb. form). Compare French oolithe (see oolite n.).Brückmann coined scientific Latin oolithus to provide an equivalent to German Rogenstein oolite (1702; < Rogen roe (see rown n.) + Stein stone n.). Geology. Any of the small rounded granules of which oolite is composed. ΘΚΠ the world > the earth > structure of the earth > constituent materials > rock > sedimentary rock > [noun] > limestone > oolite > oolith oolith1788 ovulite1847 oolite1851 ooid1918 1788 J. H. De Magellan tr. A. F. Cronstedt Ess. Syst. Mineral. (rev. ed.) I. 76 The Stalagmites..get a mammillary form, whilst the Stalactites acquire a conic figure: the Oolithes [1770 Oolithus; Sw. Oolites] and Pisolites belong to the same species. 1876 C. L. Rominger Geol. Surv. Michigan: Lower Penins. 3 34 In the upper part of the quarry we find an oolith stratum identical with the one in the other locality. 1892 Jrnl. Royal Microsc. Soc. 839 These ooliths are undoubtedly the product of a lime-separating Schizophyte; and the author believes this to be the case with the greater number of the marine calcareous ooliths with a regular zoned and radial structure. 1926 G. W. Tyrrell Princ. Petrol. xiii. 227 The grains are called ooliths and the rock containing them oolite or oolitic limestone. Ooliths generally show a series of concentric coats of calcareous material in which a radiating crystalline structure can often be made out. 1954 J. F. Kirkaldy Gen. Princ. Geol. xiii. 186 If an oolitic limestone is examined under the microscope it is seen that each oolith (or sphere) consists of concentric layers, usually crossed by radiating cracks. 1971 I. G. Gass et al. Understanding Earth i. 31/2 Ooliths are formed in environments where calcite is being precipitated and there is strong and continuous wave action. 2001 Oxoniensia 65 233 The fabric of one sherd includes a number of well-rounded oolith grains. This entry has been updated (OED Third Edition, June 2004; most recently modified version published online March 2022). < n.1788
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