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Geology of the
Gunflint Iron Formation and the Sudbury Impact Layer, Northeastern Minnesota
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and complexly deformed iron formations", which in turn is overlain by ejecta from the "
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Precambrian Banded Iron-formations: Physicochemical
Conditions of Formation,
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192:. Minneapolis: University of Minnesota Press. pp. 35–36, 39, 55–57.
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to the southwest. The two have been separated by the intrusion of the
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arcing from Duluth to Pigeon Point, interrupting and splitting the
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62:, Canada. The range extends from the extreme northern portion of
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Iron ore deposit in
Minnesota, United States and Ontario, Canada
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structures are evident within the
Gunflint Iron Formation.
188:Ojakangas, Richard W.; Matsch, Charles L. (1982).
108:." This Sudbury Impact Layer is overlain by the
100:. The Gunflint Iron Formation is overlain by "
8:
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180:
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237:, Minnesota geologic map data, USGS
212:Mel'nik, Y. P. and D. B. Vitaliano
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89:complex. The iron deposit is a
234:Animikie Group; Iron-formation
106:Sudbury meteorite impact event
1:
34:Shaded-relief image showing
159:Vermilion Range (Minnesota)
127:) are noted for containing
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81:is a continuation of the
58:in the United States and
144:Midcontinent Rift System
216:Elsevier, 1982, p. 14
64:Cook County, Minnesota
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123:of the Gunflint (the
91:banded iron formation
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297:Geology of Minnesota
169:Marquette Iron Range
68:Thunder Bay District
60:Northwestern Ontario
54:deposit in northern
269: /
190:Minnesota's Geology
42:and Gunflint Ranges
302:Geology of Ontario
77:The Gunflint Iron
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307:Iron ore deposits
273:48.184°N 89.835°W
222:978-0-444-41934-7
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125:Gunflint Chert
110:Rove Formation
98:Animikie Group
48:Gunflint Range
36:Duluth Complex
23:Lake Superior
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164:Gogebic Range
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154:Cuyuna Range
149:Paulson Mine
132:microfossils
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114:Stromatolite
83:Mesabi Range
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276: /
129:Precambrian
95:Proterozoic
25:Iron Ranges
291:Categories
264:89°50′06″W
261:48°11′02″N
175:References
102:brecciated
79:Formation
66:into the
56:Minnesota
138:See also
52:iron ore
72:Ontario
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121:cherts
50:is an
40:Mesabi
218:ISBN
194:ISBN
119:The
46:The
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