Animikien.
/aˈnɪmᵻki/, U.S. /əˈnɪməˌki/ Geology.
A series of rocks of the Canadian Shield of early Proterozoic age, rich in iron ore; the period of time during which these were deposited. Usually attributive.
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the world > the earth > structure of the earth > age or period > [adjective] > pre-Cambrian > proterozoic > specific rocks
Animikie1873
the world > the earth > structure of the earth > age or period > [noun] > Pre-Cambrian > Proterozoic > specific rocks
Animikie1903
1873 T. S. Hunt in Trans. Amer. Inst. Mining Engineers 1871–3 1 339 This older series of Thunder Bay and its vicinity, which may be named the Animikie group, from the Indian name of the bay, is the lower division of the upper copper-bearing series of Logan.
1903 A. Geikie Text-bk. Geol. (ed. 4) II. 904 Animikie..,mainly a sedimentary series, consisting of a lower quartzite and an upper slate formation.
1909 Jrnl. Canad. Mining Inst. 11 123 Iron pyrites and iron carbonate were somewhat equally deposited in the iron formation of Keewatin times, and iron carbonate predominated in Lower Huronian and Animikie times.
1910 Bull. Minnesota Acad. Sci. 4 28 The rock..is placed by some geologists at the bottom of the Animike, by others in the lower Keweenawan.
1963 D. W. Humphries & E. E. Humphries tr. H. Termier & G. Termier Erosion & Sedimentation viii. 176 Concordant with the Gunflint Formation..the Rove (Animikie age, c.1,000 million years B.P.) consists of greywackes..passing into argillites.
2006 Precambrian Res. 144 74/1 In northern Ontario, the Animikie Group may occupy a back-arc basin adjacent to the subduction inferred to have been active to the south.
This entry has been updated (OED Third Edition, November 2010; most recently modified version published online December 2021).
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