authigenicadj.

Brit.

/ɔːθᵻˈdʒɛnɪk/, U.S.

/ˌɔθəˈdʒɛnɪk/,

/ˌɑθəˈdʒɛnɪk/

Origin: A borrowing from German, combined with an English element. Etymons: German authigen , -ic suffix.

Etymology: < German authigen (E. Kalkowsky 1880, in Neues Jahrb. f. Mineralogie 1 4; < ancient Greek αὐθιγενής born on the spot, native < αὖθι on the spot ( < αὐτόθι on the spot ( < αὐτός self (see auto- comb. form¹) + -θι , suffix forming adverbs), with syllabic reduction) + -γενής : see -gen comb. form) + -ic suffix. Compare slightly later authigenous adj., and also allothigenic adj. Compare also authigenesis n.

Geology.

Of a mineral: formed in situ, at the same time as or later than the rock or deposit of which it forms part. Also: designating crystal growth, development, etc., that has taken place in situ. Contrasted with allothigenic adj.

ΘΚΠ

the world > the earth > structure of the earth > structural features > [adjective] > by origin in place

residual1876

allochthonous1888

authigenic1888

authigenous1889

autochthonous1891

parautochthonous1927

1888 F. H. Hatch in J. J. H. Teall Brit. Petrogr. Gloss. Authigenic, a term applied by Kalkowsky to a mineral constituent, to denote that it came into existence with, or after, the rock containing it.

1915 Trans. Optical Soc. 16 232 The minerals composing sands may be divided into two groups, the allogenic minerals, derived from older rocks, and the authigenic minerals,..formed at the time the rocks were deposited or subsequently.

1972 S. V. Srikantia & R. P. Sharma in A. G. Jhingran et al. Himalayan Geol. II. 226 Some of the calcite rhombohedrons show zoning which may be the result of authigenic growth.

1990 P. Kearey & F. J. Vine Global Tectonics viii. 166 Dewatering..produces characteristic authigenic carbonates derived from the methane-rich pore waters.

2004 V. I. Osipov et al. Clay Seals Oil & Gas Deposits i. 3 The basis of the mineral part is made up of allothigenic and authigenic minerals.

This entry has been updated (OED Third Edition, June 2014; most recently modified version published online December 2021).

单词	authigenic
释义	authigenicadj. Brit. /ɔːθᵻˈdʒɛnɪk/, U.S. /ˌɔθəˈdʒɛnɪk/, /ˌɑθəˈdʒɛnɪk/ Origin: A borrowing from German, combined with an English element. Etymons: German authigen , -ic suffix. Etymology: < German authigen (E. Kalkowsky 1880, in Neues Jahrb. f. Mineralogie 1 4; < ancient Greek αὐθιγενής born on the spot, native < αὖθι on the spot ( < αὐτόθι on the spot ( < αὐτός self (see auto- comb. form¹) + -θι , suffix forming adverbs), with syllabic reduction) + -γενής : see -gen comb. form) + -ic suffix. Compare slightly later authigenous adj., and also allothigenic adj. Compare also authigenesis n. Geology. Of a mineral: formed in situ, at the same time as or later than the rock or deposit of which it forms part. Also: designating crystal growth, development, etc., that has taken place in situ. Contrasted with allothigenic adj. ΘΚΠ the world > the earth > structure of the earth > structural features > [adjective] > by origin in place residual1876 allochthonous1888 authigenic1888 authigenous1889 autochthonous1891 parautochthonous1927 1888 F. H. Hatch in J. J. H. Teall Brit. Petrogr. Gloss. Authigenic, a term applied by Kalkowsky to a mineral constituent, to denote that it came into existence with, or after, the rock containing it. 1915 Trans. Optical Soc. 16 232 The minerals composing sands may be divided into two groups, the allogenic minerals, derived from older rocks, and the authigenic minerals,..formed at the time the rocks were deposited or subsequently. 1972 S. V. Srikantia & R. P. Sharma in A. G. Jhingran et al. Himalayan Geol. II. 226 Some of the calcite rhombohedrons show zoning which may be the result of authigenic growth. 1990 P. Kearey & F. J. Vine Global Tectonics viii. 166 Dewatering..produces characteristic authigenic carbonates derived from the methane-rich pore waters. 2004 V. I. Osipov et al. Clay Seals Oil & Gas Deposits i. 3 The basis of the mineral part is made up of allothigenic and authigenic minerals. This entry has been updated (OED Third Edition, June 2014; most recently modified version published online December 2021). < adj.1888
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