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Vestiges of life in the oldest
Greenland rocks? A review of early Archean geology in the Godthåbsfjord region, and reappraisal of field evidence for >3850 Ma life on Akilia
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If the Akilia rocks do show evidence of life by 3.85 Ga, it would challenge models which suggest that Earth would not be hospitable to life at this time.
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sequence located at the south-western tip of the island. The sequence has been dated as no younger than 3.85 billion years old - that is, in the
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that affected the Akilia rocks after their formation. The sedimentary origin, age and the carbon content of the rocks have been questioned.
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light organic matter derived from living organisms. However, this interpretation is complicated because of high-grade
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Recognition of ≥3850 Ma water-lain sediments in West
Greenland and their significance for the early Archaean Earth
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Petrogenesis and geochemistry of metabasaltic and metasedimentary enclaves in the Amîtsoq gneisses, West
Greenland
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Metasomatic origin of quartz-pyroxene rock, Akilia, Greenland, and implications for Earth's earliest life
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Study
Resolves Doubt About Origin Of Earth’s Oldest Rocks, Possibility Of Finding Traces Of Ancient Life
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189:. Akilia is the location of a rock formation that has been proposed to contain the oldest known
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Mojzsis, SJ, Arrhenius, G, McKeegan, KD, Harrison, TM, Nutman, AP, Friend, CRL (1996)
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A 3,850-Million-Year
Isotopic Record of Life From Carbon in Sedimentary-Rocks
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band that cuts the rock. The supracrustal sequence contains layers rich in
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UCLA scientists strengthen case for life more than 3.8 billion years ago
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Lepland, A, van Zuilen, M, Arrhenius, G, Whitehouse, M, Fedo, C (2005)
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Geology, age and origin of supracrustal rocks at Akilia, West
Greenland
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Questioning the evidence for Earth's earliest life—Akilia revisited
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Evidence for life on Earth before 3,800 million years ago
312:. Geochimica et Cosmochimica Acta, v. 61, p. 2475-2484.
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Scientists
Disagree over How, When Life Began on Earth
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337:Manning, CE, Mojzsis, SJ, Harrison, TM (2006)
193:on Earth, and perhaps the oldest evidence of
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367:. Precambrian Research, v. 103, p. 101-124.
308:Nutman AP, Mojzsis, SJ, Friend, CRL (1997)
299:. American Mineralogist, v. 62, p. 887-904
57:Location of the Akilia Island in Greenland
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205:The rocks in question are part of a
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16:Island in southwestern Greenland
380:. Science, v. 296, p. 1448-1452
185:, about 22 kilometers south of
411:Information on Nuuk, Greenland
363:Myers, JS, Crowley, JL (2000)
295:McGregor, VR, Mason, B (1977
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216:eon - based on the age of an
181:is an island in southwestern
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273:List of islands of Greenland
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328:. Nature, v. 384, p. 55-59
232:, chemical sediments from
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123:138 ha (340 acres)
350:Schidlowski, M (1988)
248:, shows low levels of
234:submarine hot springs
230:banded iron formation
92:63.93972°N 51.67472°W
443:Islands of Greenland
438:Geology of Greenland
26:Map of Akilia Island
172:0/km (0/sq mi)
97:63.93972; -51.67472
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169:Pop. density
156:Demographics
145:Municipality
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114:Davis Strait
109:Adjacent to
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71:Coordinates
432:Categories
284:References
161:Population
150:Sermersooq
83:51°40′29″W
80:63°56′23″N
250:carbon-13
183:Greenland
136:Greenland
66:Geography
267:See also
246:graphite
164:0 (2023)
453:Archean
218:igneous
201:Geology
242:Carbon
226:silica
214:Hadean
236:, or
224:and
222:iron
187:Nuuk
120:Area
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317:^
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