Inventory and assessment of Palaeoarchaean gneiss terrains and detrital zircons in southern West Greenland

Precambrian Research

Volumn 135, Issue 4 SPEC. ISS., 2004, Pages 281-314

  Nutman, Allen P ^a   Friend, Clark R L ^b   Barker, Shaun L L ^a   McGregor, Vic R ^b  

^a AUSTRALIAN NATIONAL UNIVERSITY   (Australia)

^b UK ^*

Author keywords

Crustal evolution; Greenland; Palaeoarchaean; Zircons

Indexed keywords

MINERAL; ZIRCONIUM;

ARCHEAN; CRUSTAL EVOLUTION; GNEISS; METAMORPHIC FACIES; SHRIMP DATING; TERRANE; URANIUM-LEAD DATING; ZIRCON;

ARCHAEAN; ASTRONOMY; CHEMICAL COMPOSITION; CONFERENCE PAPER; GEOCHEMISTRY; GEOGRAPHIC DISTRIBUTION; GREENLAND; PRECAMBRIAN; ROCK; SEDIMENT;

ARCTIC; ARCTIC AND ANTARCTIC; GREENLAND; WEST GREENLAND; WORLD;

EID: 9644268162     PISSN: 03019268     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.precamres.2004.09.002     Document Type: Conference Paper

References (126)

1. J.H. Allaart The pre-3760 m.y. old supracrustal rocks of the Isua area, central West Greenland, and the associated occurrence of quartz-banded ironstone B.F. Windley The Early History of the Earth 1976 Wiley London 177 189
2. J.H. Allaart, S.B. Jensen, V.R. McGregor, and B.J. Walton Reconnaissance mapping for the 1:500,000 map sheet in the Godthåb-Isua region, southern West Greenland Rapp. Grønlands Geol. Unders. 85 1977 50 54
3. J.H. Allaart, C.R.L. Friend, R.P. Hall, S.B. Jensen, and I.W.N. Roberts Continued 1:500,000 reconnaissance mapping in the Precambrian of the Sukkertoppen region, southern West Greenland Rapp. Grønlands Geol. Unders. 90 1978 50 54
4. P.W.U. Appel Aeolian differentiation of basaltic tuffs in the early Precambrian Isua supracrustal belt, west Greenland Neues Jahrb. Mineral. Monatsh 1977 1977 521 578
5. P.W.U. Appel, S. Moorbath, and P.N. Taylor Least radiogenic terrestrial lead from Isua, West Greenland Nature 272 1978 524 526
6. P.W.U. Appel, C.M. Fedo, S. Moorbath, and J.S. Myers Recognisable primary volcanic and sedimentary features in a low-strain domain of the highly deformed, oldest-known (ca. 3.7-3.8 Gyr) greenstone belt, Isua, Greenland Terra Nova 10 1998 57 62
7. L.S. Andersen, and C. Friend Structure of the Ravns Storø amphibolite belt in the Fiskenæsset region Rapp. Grønlands Geol. Unders. 51 1973 37 40
8. H. Baadsgaard U-Th-Pb dates on zircons from the early Precambrian Amîtsoq gneisses, Godthaab district, West Greenland Earth Planet. Sci. Lett. 19 1973 22 28
9. H. Baadsgaard, A.P. Nutman, D. Bridgwater, V.R. McGregor, M. Rosing, and J.H. Allaart The zircon geochronology of the Akilia association and the Isua supracrustal belt, West Greenland Earth Planet. Sci. Lett. 68 1984 221 228
10. H. Baadsgaard, A.P. Nutman, and D. Bridgwater Geochronology and isotopic variation of the early Archaean Amîtsoq gneisses of the Isukasia area, southern West Greenland Geochim. Cosmochim. Acta 50 1986 2173 2183
11. V.C. Bennett, A.P. Nutman, and M.T. McCulloch Nd isotopic evidence for transient, highly depleted mantle reservoirs in the early history of the Earth Earth Planet. Sci. Lett. 119 1993 299 317
12. 188Os isotopic compositions of Archean ultramafic rocks from southwest Greenland (3.8 Ga) and Western Australia (3.45 Ga) Geochim. Cosmochim. Acta 66 2002 2615 2630
13. Berthelsen, A., Henriksen, N., 1975. Geological map of Greenland: 1:100,000 Ivigtut 61 V.1 Syd (with description). Grønlands Geol. Unders.
14. L.P. Black, N.H. Gale, S. Moorbath, R.J. Pankhurst, and V.R. McGregor Isotopic dating of very early Precambrian amphibolite facies gneisses from the Godthåb district, West Greenland Earth Planet. Sci. Lett. 12 1971 245 259
15. L.P. Black, I.S. Williams, and W. Compston Four zircon ages from one rock: the history of a 3930 Ma-old granulite from Mount Sones, Enderby Land, Antarctica Contrib. Mineral. Petrol. 94 1986 427 437
16. S.A. Bowring, and I.S. Williams Priscoan (4.00-4.03 Ga) orthogneisses from northwestern Canada Contrib. Mineral. Petrol. 134 1999 3 16
17. S.A. Bowring, I.S. Williams, and W. Compston 3.96 Ga gneisses from the Slave Province, Northwest Territories, Canada Geology 17 1989 971 975
18. D. Bridgwater, and V.R. McGregor Field work on the very early Precambrian rocks of the Isua area, southern West Greenland Rapp. Grønlands Geol. Unders 65 1974 49 54
19. D. Bridgwater, L. Keto, V.R. McGregor, and J.S. Myers Archaean gneiss complex of Greenland A. Escher W.S. Watt Geology of Greenland 1976 Geological Survey of Greenland Copenhagen 21 75
20. 142Nd evidence from Isua metamorphosed sediments for early differentiation of Earth's mantle Nature 423 2003 428 432
21. B. Chadwick Malene stratigraphy and late Archaean structure: new data from Ivisârtoq, inner Godthåbsfjord, southern West Greenland Rapp. Grønlands Geol. Unders 130 1986 74 85
22. B. Chadwick, and M.A. Crewe Chromite in the early Archaean Akilia association (c. 3,800 m.y.), Ivisârtoq region, inner Godthåbsfjord, southern West Greenland Econ. Geol. 81 1986 184 191
23. K.D. Collerson, and D. Bridgwater Metamorphic development of early Archean tonalitic and trondhjemitic gneisses, Saglek area, Labrador F. Barker Trondhjemites, Dacites and Related Rocks 1979 Elsevier Amsterdam 205 273
24. K.D. Collerson, L.M. Campbell, B.L. Weaver, and Z.A. Palacz Evidence for extreme mantle fractionation in early Archaean ultramafic rocks from northern Labrador Nature 349 1991 209 214
25. W. Compston, P.D. Kinny, I.S. Williams, and J.J. Foster The age and lead loss behaviour of zircons from the Isua supracrustal belt as determined by ion microprobe Earth Planet. Sci. Lett. 80 1986 71 81
26. J.L. Crowley Testing the model of late Archean terrane accretion in southern West Greenland: a comparison of timing of geological events across the Qarliit nunaat fault, Buksefjorden region Precambrian Res. 116 2002 57 79
27. J.L. Crowley U-Pb geochronology of 3810-3630 Ma granitoid rocks south of the Isua greenstone belt, southern West Greenland Precambrian Res. 126 2003 235 257
28. J.L. Crowley, J.S. Myers, and G.R. Dunning Timing and nature of multiple 3700-3600 Ma tectonic events in intrusive rocks north of the Isua greenstone belt, southern West Greenland Geol. Soc. Am. Bull. 114 2002 1311 1325
29. R.F. Dymek, and M.S. Smith Geochemistry and origin of Archaean quartz-cordierite gneisses from the Godthåbsfjord region, West Greenland Contrib. Mineral. Petrol. 105 1990 715 730
30. D.M. Evans, and A.P. King Sediments and shear-hosted gold mineralisation of the Tartoq Group supracrustals, Southwest Greenland Precambrian Res. 62 1993 61 82
31. J. Farquahar, H. Bao, and M. Thiemens Atmospheric influence of Earth's earliest sulfur cycle Science 289 2000 756 758
32. C.M. Fedo Setting and origin of problematic rocks from the >3.7 Ga Isua greenstone belt, southern West Greenland: Earth's oldest coarse clastic sediments Precambrian Res. 101 2000 69 78
33. C.M. Fedo, and M.J. Whitehouse Metasomatic origin of quartz-pyroxene rock, Akilia, Greenland, and implications for Earth's earliest life Science 296 2002 1448 1452
34. R. Frei, and M.T. Rosing The least radiogenic terrestrial leads; implications for the early Archean crustal evolution and hydrothermal- metasomatic processes in the Isua supracrustal belt (West Greenland) Chem. Geol. 181 2001 47 66
35. C.R.L. Friend, and A.P. Nutman Two Archaean granulite-facies metamorphic events in the Nuuk-Maniitsoq region, southern West Greenland: correlation with the Saglek block, Labrador J. Geol. Soc. Lond. 151 1994 421 424
36. C.R.L. Friend, and A.P. Nutman U-Pb zircon study of tectonically-bounded blocks of 2940-2840 Ma crust with different metamorphic histories, Paamiut region, South-West Greenland: Implications for the tectonic assembly of the North Atlantic craton Precambrian Res. 105 2001 143 164
37. Friend, C.R.L., Nutman, A.P., in press-a. New pieces to the Archaean terrane jigsaw puzzle in southern West Greenland. J. Geol. Soc. Lond.
38. Friend, C.R.L., Nutman, A.P., in press-b. Complex 3670-3500 Ma orogenic episodes superimposed on juvenile crust accreted between 3850-3690 Ma, Itsaq Gneiss Complex, southern West Greenland. J. Geol.
39. C.R.L. Friend, A.P. Nutman, and V.R. McGregor Late-Archaean tectonics in the Færingehavn - Tre Brødre area, south of Buksefjorden, southern West Greenland J. Geol. Soc. Lond. 144 1987 369 376
40. C.R.L. Friend, A.P. Nutman, and V.R. McGregor Late Archaean terrane accretion in the Godthåb region, southern West Greenland Nature 335 1988 535 538
41. C.R.L. Friend, A.P. Nutman, H. Baadsgaard, P.D. Kinny, and V.R. McGregor Timing of late Archaean terrane assembly, crustal thickening and granite emplacement in the Nuuk region, southern West Greenland Earth Planet. Sci. Lett. 124 1996 353 365
42. C.R.L. Friend, V.C. Bennett, and A.P. Nutman Abyssal peridotites >3800 Ma from southern West Greenland: field relationships, petrography, geochronology, whole-rock and mineral chemistry of dunite and harzburgite inclusions in the Itsaq Gneiss Complex Contrib. Mineral. Petrol. 143 2002 71 92
43. C.R.L. Friend, A.P. Nutman, and V.C. Bennett Origin and significance of Archean Quartzose rocks at Akilia, Greenland Science 298 2002 917a
44. D.O. Froude, T.R. Ireland, P.D. Kinny, I.S. Williams, W. Compston, I.R. Williams, and J.S. Myers Ion microprobe identification of 4100-4200 Myr-old terrestrial zircons Nature 304 1983 616 618
45. A.A. Garde, C.R.L. Friend, A.P. Nutman, and M. Marker Rapid maturation and stabilisation of middle Archaean continental crust: the Akia terrane, southern West Greenland Bull. Geol. Soc. Denmark 47 2000 1 27
46. W.L. Griffin, V.R. McGregor, A.P. Nutman, P.N. Taylor, and D. Bridgwater Early Archaean granulite-facies metamorphism south of Ameralik Earth Planet. Sci. Lett. 50 1980 59 74
47. R.P. Hall An occurrence of ironstone enclaves east of Sukkertoppen, southern West Greenland Rapp. Grønlands Geol. Unders. 90 1978 57 60
48. R.P. Hall, and C.R.L. Friend Structural evolution of the Archean rocks in the Ivisârtoq and the neighbouring inner Godthåbsfjord region, southern West Greenland Geology 7 1979 311 315
49. P.J. Hamilton, R.K. O'Nions, D. Bridgwater, and A.P. Nutman Sm-Nd studies of Archaean metasediments and metavolcanics from West Greenland and their implications for the Earth's early history Earth Planet. Sci. Lett. 62 1983 263 272
50. 142Nd systematics for very early (4.5 Gyr) differentiation of Earth's mantle Nature 360 1992 728 732
51. J.M. Hayes The earliest memories of life on Earth Nature 384 1996 21 22
52. A.K. Higgins, and E. Bondesen Supracrustals of pre-Ketilidian age (the Tartoq Group) and their relationships with Ketilidian supracrustals in the Ivigtut region, South-West Greenland Rapport Grønlands Geol. Unders. 8 1966 21
53. A.K. Higgins The Tartoq Group on Nuna qaqortoq and the Iterdlak area, South_West Greenland Rapp. Grønlands Geol. Unders. 17 1968 17
54. M. Honda, A.P. Nutman, and V.C. Bennett Xenon compositions of magmatic zircons in 3.64 and 3.81 Ga meta-granitoids from Greenland - a search for extinct 244Pu in ancient terrestrial rocks Earth Planet. Sci. Lett. 207 2003 69 82
55. S.B. Jacobsen, and R.F. Dymek Nd and Sr isotope systematics of clastic metasediments from Isua, West Greenland: identification of pre-3.8 Ga differentiated crustal components J. Geophys. Res. 93 1987 337 347
56. P.R. James Deformation in the Isua block, west Greenland: a remnant of the earliest stable continental crust Can. J. Earth Sci. 13 1976 816 823
57. N.W. Jones, S. Moorbath, and P.N. Taylor Age and origin of gneisses south of Ameralik, between Kangimut sangmissoq and Qasigianguit L.D. Ashwal In Workshop on Early Crustal Genesis: The World's Oldest Rocks 1986 Lunar and Planetary Institute Houston 59 62 (LPI Tech. Rep. 86-04)
58. B.S. Kamber, and S. Moorbath Initial Pb of the Amîtsoq gneiss revisited: implication for the timing of early crustal evolution in West Greenland Chem. Geol. 150 1998 19 41
59. B.S. Kamber, K.D. Collerson, S. Moorbath, and M.J. Whitehouse Inheritance of early Archaean Pb-isotope variability from long-lived Hadean protocrust Contrib. Mineral. Petrol. 145 2003 25 46
60. P.D. Kinny 3820 Ma zircons from a tonalitic Amîtsoq gneiss in the Godthåb District of southern West Greenland Earth Planet. Sci. Lett. 79 1986 337 347
61. Kinny, P.D., 1987. An ion microprobe study of uranium-lead and hafnium isotopes in natural zircon. Unpublished PhD Thesis. The Australian National University.
62. P.D. Kinny, and A.P. Nutman Zirconology of the Meeberrie gneiss, Yilgarn Craton, Western Australia: an early Archaean migmatite Precambrian Res. 78 1996 165 178
63. T. Komiya, S. Maruyama, T. Masuda, P.W.U. Appel, and S. Nohda The 3.8-3.7 Ga plate tectonics on the Earth; Field evidence from the Isua accretionary complex, West Greenland J. Geol. 107 1999 515 554
64. J.D. Kramers, and I.N. Tolstikin Two terrestrial lead isotope paradoxes: forward transport modelling, core formation and the history of the continental crust Chem. Geol. 139 1997 75 110
65. Krogh, T.E., Kamo, S.L. and Kwok, Y.Y., 2002. An isotope dilution, etch abrasion solution to the Akilia Island U-Pb age controversy. Goldschmidt abstracts, A419.
66. Lepland, A., Whitehouse, M.J., Layne, G.D., van Zuilen, M., Arrhenius, G., 2004. Do early Archaean Isua and Akilia rocks contain traces of life? 14th Goldschmidt Conference, Copenhagen, June 2004, abstract I.D. 929.
67. R. Maas, P.D. Kinny, I.S. Williams, D.O. Froude, and W. Compston The earth's oldest crust: a geochronological and geochemical study of 3900-4200 Ma old detrital zircons from Mt. Narryer and Jack Hills, Western Australia Geochim. Cosmochim. Acta 56 1992 1281 1300
68. Manning, C.E., Mojzsis, S.J., Harrison, T.M., submitted for publication. Geology and Age of supracrustal rocks, Akilia, West Greenland. Am. J. Sci.
69. Maruyama, S. Masuda, T., Nohda, S., Appel, P, Otofuji, Y., Miki, M., Shibata, T., Hagiya, H., 1992. The 3.9-3.8 Ga plate tectonics on the Earth: Evidence from Isua, Greenland. Paper presented at the Evolving Earth Symposium, Tokyo Inst. Of Technol., Okazaki, Japan.
70. V.R. McGregor Field evidence of very old Precambrian rocks in the Godthåb area, West Greenland Rapport Grønlands Geologiske Undersøgelse 15 1968 31 35
71. V.R. McGregor The early Precambrian gneisses of the Godthåb district, West Greenland Roy. Soc. Lond. Phil. Trans. R. Soc. Lond. A273 1973 343 358
72. V.R. McGregor Archean gray gneisses and the origin of the continental crust: evidence from the Godthåb region, West Greenland F. Barker Trondhjemites, Dacites and Related Rocks. Developments in Petrology vol. 6 1979 Elsevier Amsterdam 169 204
73. McGregor, V.R. (Compiler), 1984. Geological map of Greenland 1:100,000 Qôrqut 64 V.1 Syd. Geological Survey of Greenland, Copenhagen.
74. V.R. McGregor Initial Pb of the Amîtsoq gneiss revisited: implications for the timing of early Archaean crustal evolution in West Greenland - comment Chem. Geol. 166 2000 301 308
75. V.R. McGregor, and B. Mason Petrogenesis and geochemistry of metabasaltic and metasedimentary enclaves in the Amîtsoq gneisses, West Greenland Am. Mineral. 62 1977 887 904
76. V.R. McGregor, C.R.L. Friend, and A.P. Nutman The late Archaean mobile belt through Godthåbsfjord, southern West Greenland: a continent-continent collision zone? Bull. Geol. Soc. Denmark. 39 1991 179 197
77. A. Michard-Vitrac, J. Lancelot, C.J. Allegre, and S. Moorbath U-Pb ages on single zircons from the early Precambrian rocks of West Greenland and the Minnesota River valley Earth. Planet. Sci. Lett. 35 1977 449 453
78. S.J. Mojzsis, and T.M. Harrison Establishment of a 3.83-Ga magmatic age for the Akilia tonalite (southern West Greenland) Earth Planet. Sci. Lett. 202 2002 563 576
79. S.J. Mojzsis, and T.M. Harrison Origin and significance of Archean Quartzose rocks at Akilia, Greenland Science 298 2002 917a
80. S.J. Mojzsis, G. Arrhenius, K.D. McKeegan, T.M. Harrison, A.P. Nutman, and C.R.L. Friend Evidence for life on Earth before 3,800 million years ago Nature 384 1996 55 59
81. S.J. Mojzsis, T.M. Harrison, and R.T. Pidgeon Oxygen isotope evidence from ancient zircons for liquid water at the Earth's surface 4,300 Myr ago Nature 409 2001 178 181
82. S.J. Mojzsis, C.D. Coath, J.P. Greenwood, K.D. McKeegan, and T.M. Harrison Mass-independent isotope effects in Archean (2.5 to 3.8 Ga) sedimentary sulfides determined by ion microprobe analysis Geochim. Cosmochim. Acta 67 2003 1635 1658
83. S. Moorbath, R.K. O'Nions, R.J. Pankhurst, N.H. Gale, and V.R. McGregor Further rubidium-strontium age determinations on the very early Precambrian rocks of the Godthåb district: West Greenland Nature 240 1972 78 82
84. S. Moorbath, R.K. O'Nions, and R.J. Pankhurst Early Archaean age for the Isua iron formation, West Greenland Nature 245 1973 138 139
85. S. Moorbath, P.N. Taylor, and N.W. Jones Dating the oldest terrestrial rocks - fact and fiction Chem. Geol. 57 1986 63 86
86. S. Moorbath, M.J. Whitehouse, and B.S. Kamber Extreme Nd-isotope heterogeneity in the early Archaean - fact or fiction? Case histories from northern Canada and West Greenland Chem. Geol. 135 1997 213 231
87. J.S. Myers Early Archaean Narryer Gneiss Complex, Yilgarn Craton, Western Australia Precambrian Res. 38 1988 309 323
88. J.S. Myers Protoliths of the 3.8-3.7 Ga Isua greenstone belt, West Greenland Precambrian Res. 105 2001 129 141
89. J.S. Myers, and J.L. Crowley Vestiges of life in the oldest Greenland rocks? A review of early Archean geology in the Godthåbsfjord region, and reappraisal of the field evidence for >3850 Ma life on Akilia Precambrian Res. 103 2000 101 124
90. A.P. Nutman Early Archaean crustal evolution in the Isukasia area, southern West Greenland A. Kröner R. Greiling Precambrian Tectonics Illustrated 1984 E. Scheizerbart'sche Verlagbuchhandlung Stuttgart 79 94
91. A.P. Nutman The early Archaean to Proterozoic history of the Isukasia area, southern West Greenland Bull. Grønlands Geol. Unders. 154 1986 80
92. Nutman, A.P., 1990. New old rocks from Greenland. In: Proceedings of the Seventh International Conference on Geochronology, Cosmochemistry and Isotope Geology. Geological Society of Australia Abstracts 27, p. 72.
93. A.P. Nutman, and D. Bridgwater Early Archaean Amîtsoq tonalites and granites from the Isukasia area, southern West Greenland: development of the oldest-known sial Contrib. Mineral. Petrol. 94 1986 137 148
94. A.P. Nutman, and K. Kalsbeek A minimum age of 2944 ± 7 Ma for the Tartoq Group, South-West Greenland Rapp. Grønlands Geol. Unders. 161 1994 35 38
95. A.P. Nutman, D. Bridgwater, and B. Fryer The iron rich suite from the Amîtsoq gneisses of southern West Greenland: early Archaean plutonic rocks of mixed crustal and mantle origin Contrib. Mineral. Petrol. 87 1984 24 34
96. A.P. Nutman, J.H. Allaart, D. Bridgwater, E. Dimroth, and M.T. Rosing Stratigraphic and geochemical evidence for the depositional environment of the early Archaean Isua supracrustal belt, southern West Greenland Precambrian Res. 25 1984 365 396
97. A.P. Nutman, C.R.L. Friend, H. Baadsgaard, and V.R. McGregor Evolution and assembly of Archean gneiss terranes in the Godthåbsfjord region, southern West Greenland: structural, metamorphic, and isotopic evidence Tectonics 8 1989 573 589
98. A.P. Nutman, P.D. Kinny, W. Compston, and I.S. Williams SHRIMP U-Pb zircon geochronology of the Narryer Gneiss Complex, Western Australia Precambrian Res. 52 1991 275 300
99. A.P. Nutman, C.R.L. Friend, P.D. Kinny, and V.R. McGregor Anatomy of an Early Archaean gneiss complex: 3900 to 3600 Ma crustal evolution in southern West Greenland Geology 21 1993 415 418
100. A.P. Nutman, V.R. McGregor, C.R.L. Friend, V.C. Bennett, and P.D. Kinny The Itsaq Gneiss Complex of southern West Greenland; the world's most extensive record of early crustal evolution (3900-3600 Ma) Precambrian Res. 78 1996 1 39
101. A.P. Nutman, S.J. Mojzsis, and C.R.L. Friend Recognition of 3850 Ma water-lain sediments in West Greenland and their significance for the Early Archaean Earth Geochim. Cosmochim. Acta 61 1997 2475 2484
102. A.P. Nutman, V.C. Bennett, C.R.L. Friend, and M.T. Rosing ∼3710 and ≥3790 Ma volcanic sequences in the Isua (Greenland) supracrustal belt; structural and Nd isotope implications Chem. Geol. 141 1997 271 287
103. A.P. Nutman, V.C. Bennett, C.R.L. Friend, and M.D. Norman Meta-igneous (non-gneissic) tonalites and quartz-diorites from an extensive ca. 3800 Ma terrain south of the Isua supracrustal belt, southern West Greenland: constraints on early crust formation Contrib. Mineral. Petrol. 137 1999 364 388
104. A.P. Nutman, C.R.L. Friend, V.C. Bennett, and V.R. McGregor The early Archaean Itsaq Gneiss Complex of southern West Greenland: the importance of field observations in interpreting dates and isotopic data constraining early terrestrial evolution Geochem. Cosmochim. Acta 64 2000 3035 3060
105. A.P. Nutman, C.R.L. Friend, and V.C. Bennett Review of the oldest (4400-3600 Ma) geological and mineralogical record: glimpses of the beginning Episodes 24 2001 93 101
106. A.P. Nutman, V.R. McGregor, K. Shiraishi, C.R.L. Friend, V.C. Bennett, and P.D. Kinny ≥3850 Ma BIF and mafic inclusions in the early Archaean Itsaq Gneiss Complex around Akilia, southern West Greenland? The difficulties of precise dating of zircon-free protoliths in migmatites Precambrian Res. 117 2002 185 224
107. Nutman, A.P., Friend, C.R.L., Bennett, V.C., 2002b. Evidence for 3650-3600 Ma assembly of the northern end of the Itsaq Gneiss Complex, Greenland: implication for early Archean tectonics. Tectonics, 21 (article 5).
108. A.P. Nutman, C.R.L. Friend, V.C. Bennett, and V.R. McGregor Dating of the Ameralik dyke swarms of the Nuuk district, Greenland: mafic intrusion events starting from c. 3510 Ma J. Geol. Soc. Lond. 161 2004 421 430
109. R.K. O'Nions, and R.J. Pankhurst Rare-earth element distribution in Archaean gneisses and anorthosites, Godthåb area, West Greenland Earth Planet. Sci. Lett. 22 1974 328 338
110. H.D. Pflug, and H. Jaeschke-Boyer Combined structural and chemical analysis of 3,800-Myr-old microfossils Nature 280 1979 483 486
111. A. Polat, A.W. Hofmann, M. Regelous, and P. Appel Contrasting geochemical patterns in the 3.7-3.8 Ga pillow basalt cores and rims, Isua greenstone belt, Southwest Greenland: implications for post-magmatic alteration processes Geochim. Cosmochim. Acta 67 2003 441 457
112. M.T. Rosing, N.M. Rose, D. Bridgwater, and H.S. Thomsen Earliest part of the Earth's stratigraphic record: a reappraisal of the >3.7 Ga Isua (Greenland) supracrustal sequence Geology 24 1996 43 46
113. M.T. Rosing, A.P. Nutman, and L. Løfqvist A new fragment of the early earth crust: the Aasivik terrane of West Greenland Precambrian Res. 105 2001 115 128
114. 13C-depleted carbon microparticles in >3700 Ma seafloor sedimentary rocks from Greenland Science 283 1999 674 676
115. M.S. Sambridge, and W. Compston Mixture modelling of multi-component data sets with application to ion-probe zircon ages Earth Planet. Sci. Lett. 128 1994 373 390
116. 9-yr-old Isua sediments, West Greenland: implications for the Archaean carbon and oxygen cycles Geochim. Cosmochim. Acta 43 1979 189 199
117. L. Schiøtte, W. Compston, and D. Bridwater Late Archaean ages for the deposition of clastic sediments belonging to the Malene supracrustals, southern West Greenland: Evidence from an ion probe U-Pb zircon study Earth Planet Sci. Lett. 87 1988 45 58
118. L. Schiøtte, W. Compston, and D. Bridgwater Ion probe U-Th-Pb zircon dating of polymetamorphic orthogneisses from northern Labrador, Canada Can. J. Earth Sci. 26 1989 1533 1556
119. L. Schiøtte, W. Compston, and D. Bridgwater U-Pb single zircon age for the Tinissaq gneiss of southern West Greenland: a controversy resolved Chem. Geol. 79 1989 21 30
120. Stern, R.A., 1998. High-resolution SIMS determination of radiogenic trace-isotope ratios in minerals. In: Cabri, L.J., Vaughan, D.J. (Eds.), Modern Approaches to Ore and Environmental Mineralogy. Mineralogical Association of Canada Short Course Series, 27, pp. 241-268.
121. P.N. Taylor, S. Moorbath, R. Goodwin, and A.C. Petrykowski Crustal contamination as an indicator of the extent of early Archaean continental crust: Pb isotopic evidence from the late Archaean gneisses of West Greenland Geochim. Cosmochim. Acta 44 1980 1437 1453
122. M.A. Van Zuilen, A. Lepland, J. Teranes, J. Finarelli, M. Wahlen, and G. Arrhenius Graphite and carbonates in the 3.8 Ga old Isua supracrustal belt, southern West Greenland Precambrian Res. 126 2003 331 348
123. J.D. Vervoort, P.J. Patchett, G.E. Gehrels, and A.P. Nutman Constraints on early Earth differentiation from hafnium and neodymium isotopes Nature 379 1996 624 627
124. M.J. Whitehouse, B.S. Kamber, and S. Moorbath Age significance of U-Th-Pb zircon data from early Archaean rocks of west Greenland - a reassessment based on combined ion-microprobe and imaging studies Chem. Geol. 160 1999 201 224
125. S.A. Wilde, J.W. Valley, W.H. Peck, and C.M. Graham Evidence from detrital zircons for the existence of continental crust and oceans on the Earth 4.4 Gyr ago Nature 409 2001 175 178
126. Williams, I.S., 1998. U-Th-Pb geochronology by ion microprobe. In: McKibben, M.A., Shanks, W.C.P., III, Ridley, W.I. (Eds.). Applications of Microanalytical Techniques to Understanding Mineralizing Processes, vol. 7. Soc. Econ. Geol. Short Course.