Zusammenfassung
Das Archaische Kraton Grönlands ist aus Gneisen, Amphiboliten, anorthositischen und untergeordneten Suprakrustal-Gesteinen aufgebaut. Es enthält die ältesten bis jetzt gefundenen krustalen Gesteine. Das Archaische Kraton ist gegen Norden und gegen Süden von Proterozoischen Orogenen begrenzt. Die Nagssugtoqidischen und Rinkischen Orogene gegen Norden, die sich durch ihre verschiedene tektonische Entwicklung unterschieden, bestehen hauptsächlich aus aufgearbeiteten Archaischen Gesteinen. Früh-Proterozoische Suprakrustal-Gesteine spielen eine wichtige Rolle im Rinkischen Orogen, wo sie das Archaische Grundgebirge überlagern. Gegen Süden besteht das Ketilidische Orogen hauptsächlich aus Proterozoischen Suprakrustal-Gesteinen und Graniten. Nach erneuerter Denudation wurden spätproterozoische Suprakrustal-Gesteine in Nord- und Südgrönland abgelagert. Diese sind assoziiert mit bedeutenden Mengen von spätproterozoischen Intrusivgesteinen.
Abstract
The Archaean gneiss block of Greenland is made up of gneisses, amphibolites, anorthositic rocks and minor supracrustals. It contains the oldest crustal rocks yet recorded on earth. The Archaean gneiss block is bordered to the north and to the south by Proterozoic mobile belts. The Nagssugtoqidian and Rinkian mobile belts to the north, differentiated on the basis of differences in the tectonic development, consist mainly of reworked Archaean rocks. Early Proterozoic supracrustal rocks are prominent in the Rinkian mobile belt, where they overlie the Archaean basement. The Ketilidian mobile belt to the south consists mainly of Proterozoic supracrustal rocks and granites. After renewed denudation late Proterozoic supracrustal rocks were deposited in North and South Greenland where they are associated with large amounts of late Proterozoic intrusive rocks.
Résumé
Le socle archéen du Groenland est composé principalement de gneiss, d'amphibolites et d'anorthosites avec accessoirement des roches supracrustales. Dans ce socle se trouvent les roches les plus âgées de l'écorce terrestre trouvées jusqu'à présent. Au nord et au sud, le socle archéen est flanqué par des ceintures orogéniques protérozoïques. Au nord on trouve le Nagssugtoqidien et le Rinkien qui ont des styles tectoniques différents, et sont composés principalement de roches archéennes transformées. Dans le Rinkien les roches supracrustales du début du Protérozoique jouent un rôle important; elles y recouvrent les gneiss archéens. Au sud du socle archéen, la ceinture orogénique du Kétilidien est composée principalement de roches supracrustales et de granite protérozoïques. Après une période de dénudation intense, des sédiments et des laves d'âge protérozoïque tardif se sont déposées gans le nord et le sud du Groenland en association avec d'abondantes roches intrusives.
Краткое содержание
Архейский кратон Гре нландии, составленны й гнейсами, амфиболитами, анортозитовыми и вто ростепенными субкру стальными породами, содержит древнейшие, на сегодн яшний день установле нные, породы коры. Архейский кратон ограничен с се вера и юга протерозой скими орогенами; Нагсугток ский и ринкский орогены на севере, тектоническо е развитие которых протекало пр и различных условиях, с остоят гл. обр. из мобил изованных архейских пород. Раннепротерозойски е породы поверхностн ой коры играют важную роль в ринкском орогене, зал егая на архейском фун даменте. Кетилидский ороген н а юге состоит гл. обр. из п ротерозойских пород верхней коры и гранитов. После последующей денудац ии на юге и севере Грен ландии отложились позднепр отерозойские субкрустальные поро ды, а затем они были пер екрыты значительными количествами поздне протеродойских интр узивных пород.
References
Allaart, J. H.: The pre-3760 m. y. old supracrustal rocks of the Isua area, central West Greenland, and the associated occurrence of quartz-banded ironstone. In: Windley, B. F. (ed.): The early history of the earth, 177–189, London, New York, Sidney, Toronto (Wiley), 1975.
—: Ketilidian mobile belt in South Greenland. In: Escher, A. & Watt, W. S. (eds.): Geology of Greenland, 121–151, Copenhagen (Grønlands geologiske Undersøgelse), 1976.
Baadsgaard, H.: U-Th-Pb dates on zircons from the early Precambrian Amitsoq gneisses, Godthaab district, West Greenland. - Earth Planet. Sci. Lett.19, 22–28, 1973.
—: Further U-Pb dates on zircons from the early Precambrian rocks of the Godthaabsfjord area, West Greenland. - Earth Planet. Sci. Lett.33, 261–267, 1976.
Bak, J., Korstgård, J. &Sørensen, K.: A major shear zone within the Nagssugtoqidian of West Greenland. - Tectonophysics27, 191–209, 1975.
Black, L. P., Moorbath, S., Pankhurst, R. J. &Windley, B. F.:207Pb/206Pb whole rock age of the Archaean granulite facies metamorphic event in West Greenland. - Nature phys. Sci.244, 50–53, 1973.
Blaxland, A. B., van Breemen, O., Emeleus, C. H. &Anderson, J. G.: Age and origin of the major syenite centers in the Gardar province of South Greenland: Rb-Sr studies. - Bull. geol. Soc. Amer.89, 231–244, 1978.
Bondesen, E. &Henriksen, N.: On some pre-Cambrian metadolerites from the central Ivigtut region, SW Greenland.- Bull. Grønlands geol. Unders.52, 1–42, 1965.
Bridgwater, D., Escher, A., Nash, D. F. &Watterson, J.: Investigations on the Nagssugtoqidian boundary between Holsteinsborg and Kangamiut, central West Greenland. - Rapp. Grønlands geol. Unders.55, 22–25, 1973.
Bridgwater, D., Sutton, J. &Watterson, J.: Crustal downfolding associated with igneous activity. - Tectonophysics21, 57–77, 1974.
Bridgwater, D., Keto, L., McGregor, V. R. &Myers, J. S.: Archaean gneiss complex of Greenland. In: Escher, A. &Watt, W. S. (eds.): Geology of Greenland, 19–75, Copenhagen (Grø nlands geologiske undersøgelse), 1976.
Bridgwater, D., Allaart, J. H., Schopf, J. W., Klein, C., Walter, M. R., Barghoorn, E. S., Strother, P., Knoll, A. H. &Gorman, B. E.: Microfossil-like objects from the Archaean of Greenland: a cautionary note. - Nature, Lond.289, 51–53, 1981.
Chadwick, B. &Nutman, A. P.: Archaean evolution in the northwest of the Buksefjorden region, southern West Greenland. - Precambrian Res.9, 199–226, 1979.
Compton, P.: Rare earth evidence for the origin of the Nuk gneisses, Buksefjorden region, southern West Greenland. - Contr. Min. Petr.66, 283–293, 1978.
Emeleus, C. H. &Upton, B. G. J.: The Gardar period in southern Greenland. In: Escher, A. & Watt, W. S. (eds.): Geology of Greenland, 153–181, Copenhagen (Grønlands geologiske Undersøgelse), 1976.
Escher, J. C. &Myers, J. S.: New evidence concerning the original relationships of early Precambrian volcanics and anorthosites in the Fiskenæsset region, southern West Greenland. - Rapp. Grønlands geol. Unders.75, 72–76, 1975.
Escher, A. &Pulvertaft, T. C. R.: Rinkian mobile belt of west Greenland. In: Escher, A. & Watt, W. S. (eds.): Geology of Greenland, 105–119, Copenhagen (Grønlands geologiske Undersøgelse), 1976.
Escher, A. &Watt, W. S. (eds.): Geology of Greenland. Copenhagen (Grønlands geologiske Undersøgelse), 603 pp., 1976.
Escher, A., Sørensen, K. &Zeck, H. P.: Nagssugtoqidian mobile belt in West Greenland. In: Escher, A. & Watt, W. S. (eds.): Geology of Greenland, 77–96, Copenhagen (Grønlands geologiske Undersøgelse), 1976.
Garde, A. A. &Pulvertaft, T. C. R.: Age relations of the Marmorilik Marble Formation, central West Greenland. - Rapp. Grønlands geol. Unders.80, 49–53, 1976.
Ghisler, M.: The geology, mineralogy and geochemistry of the pre-orogenic Archaean stratiform chromite deposits at Fiskenæsset, West Greenland. - Monogr. Series miner. Deposits,14, 156 pp., 1976.
Griffin, W. L., McGregor, V. R., Nutman, A., Taylor, P. N. &Bridgwater, D.: Early Archaean granulite-facies metamorphism south of Ameralik, West Greenland. - Earth Planet. Sci. Lett.50, 59–74, 1980.
Gulson, B. L. &Krogh, T. E.: Evidence of multiple intrusion, resetting of U-Pb ages and possible new crystallisation of zircons in the post-tectonic intrusions (‘Rapakivi granites’) and gneisses from South Greenland. - Geochim. Cosmochim. Acta39, 65–82, 1975.
Hamilton, P. J., O'Nions, R. K., Evensen, N. M., Bridgwater, D. &Allaart, J. H.: Sm-Nd isotopic investigations of Isua supracrustals and implications for mantle evolution. - Nature, Lond.272, 41–43, 1978.
Henderson, G.: The use of structural contour maps in the study of gneiss-metasediment relations in the Umanak area, West Greenland. - Spec. Pap. Geol. Ass. Can.5, 129–142, 1969.
Herd, R. K.: Sapphirine and kornerupine occurrences within the Fiskenæsset complex. - Rapp. Grønlands geol. Unders.51, 65–71, 1973.
Hickman, M. H.: A Rb-Sr age and isotope study of the Ikertoq, Nordre Strømfjord, and Evighedsfjord shear belts, West Greenland - outline and preliminary results. - Rapp. Grenlands geol. Unders.89, 125–128, 1979.
Hopgood, A. M.: The pre-Ketilidian history of the gneisses north-west of Frederikshåbs Isblink, Fiskenæsset region.- Rapp. Grønlands geol. Unders.51, 54–59, 1973.
—: Structures in an area north-east of Fiskenæsset, West Greenland. - Rapp. Grønlands geol. Unders.73, 16–21, 1976.
Jepsen, H. F. &Kalsbeek, F.: Igneous rocks in the Proterozoic platform of eastern North Greenland. - Rapp. Grønlands geol. Unders.88, 11–14, 1979.
Kalsbeek, F.: The northward extent of the Archaean basement of Greenland — a review of Rb-Sr whole-rock ages. - Precambrian Res.14, 203–219, 1981.
Kalsbeek, F. &Myers, J. S.: The geology of the Fiskenæsset region. - Rapp. Grønlands geol. Unders.51, 5–18, 1973.
Kalsbeek, F. &Zeck, H. P.: Preliminary Rb-Sr whole-rock data for Archaean and Nagssugtoqidian rocks from the Sondre Strømfjord area, West Greenland. - Rapp. Grønlands geol. Unders.90, 129–134, 1978.
Kalsbeek, F., Bridgwater, D. &Zeck, H. P.: A 1950±60 Ma Rb-Sr whole-rock isochron age from two Kangamiut dykes and the timing of the Nagssugtoqidian (Hudsonian) orogeny in West Greenland. - Can. J. Earth Sci.15, 1122–1128, 1978.
Korstgård, J. A.: Metamorphism of the Kangâmiut dykes and the metamorphic and structural evolution of the southern Nagssugtoqidian boundary in the Itivdleq-Ikertôq region, West-Greenland. - Rapp. Grønlands geol. Unders.89, 63–75, 1979.
- (ed.): Nagssugtoqidian geology. - Rapp. Grønlands geol. Unders.89, 146 pp.
Larsen, O.: Preliminary report on K/Ar dating in the southeastern part of the Ivigtut region. - Rapp. Grønlands geol. Unders.35, 49–52, 1971.
McGregor, V. R.: The early Precambrian gneisses of the Godthåb district, West Greenland. - Phil. Trans. R. Soc. Lond. A273, 343–358, 1973.
—: Archaean grey gneisses and the origin of the continental crust: evidence from the Godthåb region, West Greenland. In: Barker, F. (ed.): Trondhjemites, dacites, and related rocks, 169–204, Amsterdam (Elsevier), 1979.
Moorbath, S. &Pankhurst, R. J.: Further rubidium-strontium age and isotope evidence for the nature of the late Archaean plutonic event in West Greenland. - Nature. Lond.262, 124–126, 1976.
Moorbath, S., O'Nions, R. K., Pankhurst, R. J., Gale, R. J. &McGregor, V. R.: Further rubidium-strontium age determinations on the very early Precambrian rocks of the Godthåb district, West Greenland. - Nature phys. Sci.240, 78–82, 1972.
Moorbath, S., Taylor, P. N., &Goodwin, R.: Origin of granitic magma by crustal remobilisation: Rb-Sr and Pb/Pb geochronology and isotope geochemistry of the late Archaean Qôrqut Granite Complex of southern West Greenland. - Geochim. Cosmochim. Acta45, 1051–1060, 1981.
Myers, J. S.: Igneous structures and textures in the Majorqap qâva outcrop of the Fiskenæsset anorthosite complex. - Rapp. Grønlands geol. Unders.51, 47–53, 1973.
—: Formation of banded gneisses by deformation of igneous rocks. - Precambrian Res.6, 43–64, 1978.
Pedehsen, S. &Bridgwater, D.: Isotopic re-equilibration of Rb-Sr whole-rock systems during reworking of Archaean gneisses in the Nagssugtoqidian mobile belt, East Greenland. - Rapp. Grønlands geol. Unders.89, 133–146, 1979.
Pflug, H. D. &Jaeschke-Boyer, H.: Combined structural and chemical analysis of 3,800-Myr-old microfossils. - Nature, Lond.280, 483–486, 1979.
Pidgeon, R. T., Aftalion, M. &Kalsbeek, F.: The age of the Ilivertalik granite in the Fiskenæ sset area. - Rapp. Grønlands geol. Unders.73, 31–33, 1976.
Pidgeon, R. T. &Kalsbeek, F.: Dating of igneous and metamorphic events in the Fiskenæsset region of southern West Greenland. - Can. J. Earth Sci.15, 2021–2025, 1978.
Pulvertaft, T. C. R.: Recumbent folding and flat-lying structure in the Precambrian of northern West Greenland. - Phil. Trans. R. Soc. Lond. A273, 535–545, 1973.
Ramberg, H.: On the petrogenesis of the gneiss complexes between Sukkertoppen and Christianshaab, West Greenland. - Meddr. dansk geol. Foren.11, 312–327, 1948.
—: Gravity, deformation and the Earth's crust as studied by centrifuged models. London, New York (Academic Press), 214 pp., 1967.
Rivalenti, G.: Geochemistry of metavolcanic amphibolites from South-West Greenland. In: Windley, B. F. (ed.): The early history of the earth, 213–223, London, New York, Sidney, Toronto (Wiley), 1975.
Schidlowski, M., Appel, P. W. U., Eichmann, R. &Junge, C. E.: Carbon isotope geochemistry of the 3.7×109-yr-old Isua sediments, West Greenland: Implications for the Archaean carbon and oxygen cykles. - Geochim. Cosmochim. Acta43, 189–199, 1979.
Van Breemen, O., Aftalion, M. &Allaart, J. H.: Isotopic and geochronologic studies on granites from the Ketilidian mobile belt of South Greenland. - Bull. geol. Soc. Amer.85, 403–412, 1974.
Wells, P. R. A.: Late Archean metamorphism in the Buksefjorden region, Southwest Greenland. - Contr. Miner. Petr.56, 229–242, 1976.
Windley, B. F.: The stratigraphy of the Fiskenæsset anorthosite complex. - Rapp. Grønlands geol. Unders.35, 19–21, 1971.
Windley, B. F.,Herd, R. K. &Bowden, A. A.: The Fiskenæsset complex, West Greenland. Part 1. A preliminary study of the stratigraphy, petrology and whole-rock chemistry from Qeqertarsuatsiaq. - Bull. Grønlands geol. Unders.106, 80 pp., 1973.
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Kalsbeek, F. The evolution of the Precambrian Shield of Greenland. Geol Rundsch 71, 38–60 (1982). https://doi.org/10.1007/BF01825023
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DOI: https://doi.org/10.1007/BF01825023