| 释义 |
Animikie, n. Geol.|æˈnɪmɪkiː|
Also Animike.
[A North American Indian name (Ojibwa animikii, lit. ‘thunderer’) for Thunder Bay, on Lake Superior, Ontario, Canada, where the rocks are exposed and were first investigated.]
Used attrib. (esp. in Animikie Group) and occas. absol. to designate a series of Proterozoic rocks of the Canadian Shield that are rich in iron ore.
1873T. S. Hunt in Trans. Amer. Inst. Mining Engineers I. 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. 1888Amer. Geologist I. 14 ‘Animike’ is a term employed to designate an assemblage of strata occupying a position between the Copper-bearing, Nipigon, or Kewenian series of lake Superior and the great gneissic and granitic base commonly designated Laurentian. 1903A. Geikie Text-bk. Geol. (ed. 4) II. 904 Animikie.., mainly a sedimentary series, consisting of a lower quartzite and an upper slate formation. 1963D. W. & E. E. Humphries tr. Termier's 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. 1972Sims & Morey Geol. Minnesota 5 The Middle Precambrian consists dominantly of clastic rocks and intercalated iron-formations that are assigned to the Animikie Group. |