pelagiten.

Brit.

/ˈpɛlədʒʌɪt/,

/pᵻˈladʒʌɪt/, U.S.

/ˈpɛləˌdʒaɪt/,

/pəˈlædʒˌaɪt/

Origin: A borrowing from Greek, combined with an English element. Etymons: Greek πέλαγος , -ite suffix¹.

Etymology: < ancient Greek πέλαγος sea (see pelagic adj. and n.) + -ite suffix¹. With sense 2 compare earlier pelagic adj. 1. N.E.D. (1904) gives only the pronunciation (pe·lădʒəit) /ˈpɛlədʒaɪt/.

Geology.

1. A mixture of manganese oxide and other metal oxides forming crusts and nodular concretions on the seabed. Also: a manganese nodule or similar concretion found on the seabed.

ΘΚΠ

the world > the earth > minerals > types of mineral > oxides and hydroxides > [noun] > rutile and uranite groups A02 > manganese dioxide

brownstone1657

manganese1662

magnesia1677

soap of glass1815

pyrolusite1828

varvicite1829

polianite1849

manganese dioxide1866

pelagite1876

manganese oxide1882

1876 A. H. Church in Min. Mag. 1 52 The singularity of the mode of formation, of the occurrence, and of the composition of these concretions should constitute no bar to their recognition as a distinct mineral species under such a name as Pelagite. It would at present be impossible to assign a formula to this ‘pelagite’.

1940 F. F. Grout Kemp's Handbk. Rocks (ed. 6) 287 (Gloss.) Pelagite, manganese nodule.

1971 Philos. Trans. (Royal Soc.) A. 268 565 The constancy of MnO is relevant to the much debated question of the provenance of the manganese which forms the pelagite (‘manganese’) encrustation on submarine rocks.

2. = pelagic n. 1.

ΚΠ

1972 Sci. Amer. Mar. 30/3 Interlayered with the graded beds are fine clays (pelagites) that slowly settle from the overlying water as a ‘gentle rain’ between major influxes of turbidity currents.

1991 Philos. Trans. (Royal Soc.) A. 335 305 (table) Trench sediments... 500m thick pelagites and ashes.

2000 Precambrian Res. 100 235 Detrital fragments and small intraclasts of mat-bound substrate..occur most abundantly within low-concentration turbidites and pelagites of both the upper and lower slope-apron.

This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022).

单词	pelagite
释义	pelagiten. Brit. /ˈpɛlədʒʌɪt/, /pᵻˈladʒʌɪt/, U.S. /ˈpɛləˌdʒaɪt/, /pəˈlædʒˌaɪt/ Origin: A borrowing from Greek, combined with an English element. Etymons: Greek πέλαγος , -ite suffix¹. Etymology: < ancient Greek πέλαγος sea (see pelagic adj. and n.) + -ite suffix¹. With sense 2 compare earlier pelagic adj. 1. N.E.D. (1904) gives only the pronunciation (pe·lădʒəit) /ˈpɛlədʒaɪt/. Geology. 1. A mixture of manganese oxide and other metal oxides forming crusts and nodular concretions on the seabed. Also: a manganese nodule or similar concretion found on the seabed. ΘΚΠ the world > the earth > minerals > types of mineral > oxides and hydroxides > [noun] > rutile and uranite groups A02 > manganese dioxide brownstone1657 manganese1662 magnesia1677 soap of glass1815 pyrolusite1828 varvicite1829 polianite1849 manganese dioxide1866 pelagite1876 manganese oxide1882 1876 A. H. Church in Min. Mag. 1 52 The singularity of the mode of formation, of the occurrence, and of the composition of these concretions should constitute no bar to their recognition as a distinct mineral species under such a name as Pelagite. It would at present be impossible to assign a formula to this ‘pelagite’. 1940 F. F. Grout Kemp's Handbk. Rocks (ed. 6) 287 (Gloss.) Pelagite, manganese nodule. 1971 Philos. Trans. (Royal Soc.) A. 268 565 The constancy of MnO is relevant to the much debated question of the provenance of the manganese which forms the pelagite (‘manganese’) encrustation on submarine rocks. 2. = pelagic n. 1. ΚΠ 1972 Sci. Amer. Mar. 30/3 Interlayered with the graded beds are fine clays (pelagites) that slowly settle from the overlying water as a ‘gentle rain’ between major influxes of turbidity currents. 1991 Philos. Trans. (Royal Soc.) A. 335 305 (table) Trench sediments... 500m thick pelagites and ashes. 2000 Precambrian Res. 100 235 Detrital fragments and small intraclasts of mat-bound substrate..occur most abundantly within low-concentration turbidites and pelagites of both the upper and lower slope-apron. This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022). < n.1876
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