264:
92:, within 200 million years of Earth accretion. Most Hadean rocks were probably recycled into the mantle before the end of the eon, however, and such pre-4.0 Ga mineral inclusions, the only traces from the earliest rock formation on Earth, are rare.
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in northern Quebec, but amphibolites have been dated to 4.28 Ga while 3.75 Ga-old
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103:, Canada, are regarded to be the oldest rocks on Earth, dated to 4.06 Ga, include
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for the first oceans and therefore contributed nutrients to the first
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contains the oldest, well-preserved, supracrustals, dated at 3.8–3.7
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Rocks that were deposited on the existing basement rocks of the crust
127:. It is possible that such early Hadean TTGs were a source of
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88:and probably supracrustal rocks formed during the
84:dated to up to 4.4 Ga, meaning that granitic
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8:
221:"Mineral environments on the earliest Earth"
150:indicate the minimum age of the belt. The
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204:, The Oldest Rocks on Earth, pp. 26–27
42:, hence the name. They may be further
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142:grains have been identified in the
154:in Antarctica are of similar age.
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144:Nuvvuagittuq Supracrustal Belt
1:
189:, Hadean Time Capsules, p. 26
278:. You can help Knowledge by
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240:10.2113/gselements.6.1.25
26:(Latin for "above")) are
135:steps of life on Earth.
274:-related article is a
148:banded iron formations
219:Papineau, D. (2010).
159:Isua greenstone belt
97:Acasta orthogneisses
140:Hadean-aged zircon
76:(3.2–2.8 Ga)
20:Supracrustal rocks
330:Sedimentary rocks
325:Metamorphic rocks
287:
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86:continental crust
82:Western Australia
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272:metamorphic rock
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152:Napier Mountains
68:grains from the
34:on the existing
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70:Yilgarn Craton
52:volcanic rocks
36:basement rocks
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202:Papineau 2010
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187:Papineau 2010
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61:on Earth are
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44:metamorphosed
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29:
25:
21:
280:expanding it
269:
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243:. Retrieved
234:(1): 25–30.
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227:
182:
156:
137:
101:Slave Craton
94:
74:Mesoarchaean
56:
23:
19:
18:
113:amphibolite
57:The oldest
48:sedimentary
335:Rock stubs
319:Categories
169:References
129:phosphorus
105:protoliths
78:Jack Hills
46:from both
30:that were
245:1 January
133:abiogenic
32:deposited
228:Elements
107:such as
63:detrital
59:minerals
212:Sources
125:diorite
121:granite
99:of the
72:in the
38:of the
123:, and
117:gabbro
90:Hadean
66:zircon
270:This
224:(PDF)
174:Notes
40:crust
28:rocks
24:supra
276:stub
247:2016
157:The
109:TTGs
95:The
50:and
236:doi
138:No
321::
230:.
226:.
194:^
165:.
163:Ga
119:,
115:,
111:,
80:,
54:.
307:e
300:t
293:v
282:.
249:.
238::
232:6
22:(
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