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Ivisaartoq Belt

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Series: GSA Special Papers
Published: 01 January 2008
DOI: 10.1130/2008.2440(03)
... In this review we summarize the major lithological and geochemical characteristics of the Mesoarchean (ca. 3075 Ma) Ivisaartoq greenstone belt, Nuuk region, southern West Greenland. In addition, the geological characteristics of the Ivisaartoq greenstone belt are compared with those of other...
Image
Summary of SHRIMP U–Pb zircon and monazite dating from the <b>Ivisaartoq</b> and U...
Published: 01 January 2005
Fig. 5.  Summary of SHRIMP U–Pb zircon and monazite dating from the Ivisaartoq and Ujarassuit Nunaat areas of inner Godthåbsfjord. Table 1 and the Appendix give complete data, discussion of analytical method and calculation method for the pooled ages (given at 95% confidence limits). Sample
Series: Geological Society, London, Special Publications, Geological Society, London, Special Publications
Published: 01 January 2009
DOI: 10.1144/SP318.6
EISBN: 9781862395664
... area in SW Greenland. ( b ) A simplified geological map of the Nuuk region, showing the Eo- to Neoarchaean tectonic terranes and the location of the Ivisaartoq greenstone belt. ( c ) A simplified geological cross-section along line A–B; vertical and horizontal scales are exaggerated for illustration...
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Journal Article
Published: 09 September 2015
Journal of the Geological Society (2016) 173 (1): 228–239.
...-hosting pillow basalts, Ivisaartoq greenstone belt, SW Greenland: Evidence for crustal contamination versus crustal recycling . Chemical Geology , 268 , 248 – 271 . Prokoph A. Ernst R.E. Buchan K.L. 2004 . Time-series analysis of large igneous provinces: 3500 Ma to present...
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Journal Article
Published: 13 November 2007
Canadian Journal of Earth Sciences (2007) 44 (11): 1517–1535.
... of the Mesoarchean (∼3075 Ma)–Ivisaartoq greenstone belt, southern West Greenland: evidence for seafloor hydrothermal alteration in suprasubduction oceanic crust . Gondwana Research , 11 : 69 – 91 . Puchtel I.S. Hofmann A.W. Mezger K. Jochum K.P. Shchipansky A.A. Samsonov A.V. 1998...
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Journal Article
Published: 13 May 2016
Canadian Journal of Earth Sciences (2016) 53 (11): 1336–1371.
...Ali Polat; Thomas Kokfelt; Kevin C. Burke; Timothy M. Kusky; Dwight C. Bradley; Annika Dziggel; Jochen Kolb Abstract The Mesoarchean Târtoq greenstone belt, southern West Greenland, consists of tectonically imbricated slices of metamorphosed basalt, gabbro, peridotite, and sedimentary rocks...
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Journal Article
Journal: Economic Geology
Published: 01 June 2012
Economic Geology (2012) 107 (4): 599–644.
...Thomas Angerer; Steffen G. Hagemann; Leonid V. Danyushevsky Abstract The banded iron formation (BIF)-hosted iron ore deposits in the lower greenstone succession of the Koolyanobbing greenstone belt, 50 km north of Southern Cross in Western Australia, are a ~200 Mt high-grade Fe (>58%) pre-mining...
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Journal Article
Published: 01 July 2015
Russ. Geol. Geophys. (2015) 56 (7): 978–995.
...) Ivisaartoq belt ( Polat et al., 2008 ), a complex 100 km long structure with ~20–30 km by 7 km synform off-shoots. The Ivisaartoq belt encompasses the Isukasian Paleoarchean (3.8–3.6 Ga) orthogneiss and Mesoarchean granite gneiss ( Fig. 6 a ). The Paleo-, Meso, and Neoarchean complexes make up a series...
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Journal Article
Published: 01 August 2015
Mineralogical Magazine (2015) 79 (4): 815–855.
... ; Hollis et al. , 2006 ; Nutman and Friend, 2007 ). The ~3080–3070 Ma Ivisaartoq and Ujarassuit greenstone belts constitute larger belts in the terrane ( Friend and Nutman, 2005 b ). Monzogranite and pegmatite were emplaced at ~2820–2800 Ma ( Hollis et al. , 2006 ). The ~3075 Ma Ivisaartoq...
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Journal Article
Published: 13 November 2016
Canadian Journal of Earth Sciences (2016) 53 (11): 1103–1120.
... orogenic belts led to cratonal plates typified by emerging continental freeboard, increasing sedimentary differentiation, and episodic glaciation during transpolar drift; onset of temporally limited stagnant-lid mantle convection occurred beneath enlarging supercontinents; ( iv ) 1.0 Ga–present, laminar...
Series: Geological Society, London, Special Publications, Geological Society, London, Special Publications
Published: 01 January 2017
EISBN: 9781786202949
... supracrustal belts can form by accretion of discrete lithological associations. Andesites also occur in the Ivisaartoq supracrustal belt about 50 km east of Qussuk ( Polat et al. 2007 , 2008 ), and similar andesites are relatively common within the Mesoarchaean Tasiusarsuaq terrane of SW Greenland ( Garde...
Journal Article
Journal: Economic Geology
Published: 01 August 2012
Economic Geology (2012) 107 (5): 881–908.
... arc rocks ( Fig. 5C, D ). The former group has a larger enrichment of high field-strength elements relative to primitive mantle than would be expected from ocean-floor tholeiites, in agreement with a suprasubduction zone setting such as found in the neighboring Ivisaartoq metavolcanic belt ( Polat et...
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Simplified geology ( a ), geological cross section ( b ), and location map ...
Published: 01 July 2015
Fig. 6. Simplified geology ( a ), geological cross section ( b ), and location map ( c ) of the Nuuk region in southwestern Greenland, including the Isua, Ivisaartoq, Qussuk, and Storø ophiolites ( Polat et al., 2008 ). 1 , Qôrqut Neoarchean granites (2550 Ma); 2 , Neoarchean (2720 Ma) granites
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A: MgO versus SiO 2  of the refractory Nunatak eclogites and Late Archean t...
in > Geology
Published: 01 December 2011
Archean Ivisaartoq greenstone belt, central North Atlantic craton ( Polat et al., 2008 ), which are starting compositions in the trace element modeling ( Figs. 3B and DR2). B: Sr/Y versus Y of pristine Nunatak eclogites and Late Archean TTG gneisses from West Greenland. A batch melting model
Journal Article
Journal: Geology
Published: 01 March 2013
Geology (2013) 41 (3): 379–380.
... ). The remnants of oceans closed during accretion are marked by abundant pillow lavas and ultramafic rocks in the Isua, Ivisaartoq-Ujarassuit and Tartoq greenstone belts ( Polat et al., 2011 ; Kisters et al., 2012 ), which occur as fault-bounded lithotectonic assemblages, intruded by contemporaneous TTGs...
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Journal Article
Journal: Geology
Published: 01 May 2008
Geology (2008) 36 (5): 431–432.
... deformed and dismantled SSZ ophiolites. Eo-to-Mesoarchean greenstone belts in southwest Greenland (e.g., 3800–3700 Ma Isua, ca. ~3075 Ma Ivisaartoq, 3070 Ma Ujarassuit) are composed mainly of metavolcanic rocks, metagabbros, and ultramafic rocks associated with metapelites, chert, banded iron formation...
FIGURES
Journal Article
Published: 01 May 2007
Journal of the Geological Society (2007) 164 (3): 565–579.
... been described from the Ivisaartoq belt about 50 km east of the Akia terrane, which is neverless completely dominated by mafic to ultramafic metavolcanic rocks ( Polat et al . 2007 ). In contrast, other well-described Archaean cratons, such as the eastern Canadian shield, the Yilgarn block of Western...
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Journal Article
Journal: Geology
Published: 01 December 2011
Geology (2011) 39 (12): 1103–1106.
... Archean Ivisaartoq greenstone belt, central North Atlantic craton ( Polat et al., 2008 ), which are starting compositions in the trace element modeling ( Figs. 3B and DR2). B: Sr/Y versus Y of pristine Nunatak eclogites and Late Archean TTG gneisses from West Greenland. A batch melting model...
FIGURES
Journal Article
Published: 01 August 2015
Mineralogical Magazine (2015) 79 (4): 857–876.
... a ) We have calculated Nd- and Hf-episilon (ε) values at 2970 Ma according to the precise age for the Fiskenæsset complex ( Polat et al. , 2010 ) and 3075 Ma according to the age for the Ivisaartoq supracrustal belt ( Polat et al. , 2007 ). These two ages represent major volcanic events in this region...
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Journal Article
Published: 01 January 2005
Journal of the Geological Society (2005) 162 (1): 147–162.
...Fig. 5.  Summary of SHRIMP U–Pb zircon and monazite dating from the Ivisaartoq and Ujarassuit Nunaat areas of inner Godthåbsfjord. Table 1 and the Appendix give complete data, discussion of analytical method and calculation method for the pooled ages (given at 95% confidence limits). Sample...
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