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Churchill Quartzite

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Journal Article
Published: 01 February 1988
Canadian Journal of Earth Sciences (1988) 25 (2): 246-254.
... metamorphism. A minimum age of 2052 ± 41 Ma (initial ratio 0.7150) for quartz–feldspar porphyry that intrudes the Seal River volcanic suite constrains the age of these volcanics and could represent a partially reset Archean age. Early Proterozoic quartzite and metagreywacke of the Great Island Group...
Journal Article
Journal: Economic Geology
Published: 01 June 2000
Economic Geology (2000) 95 (4): 703-724.
... of tectonized quartzite and pelitic schists of the Ramah Group, which Ermanovics et al. (1989) included within a boundary zone subdivision of their Churchill foreland zone, can be traced in a fairly continuous strip from Hebron to Okak. The western part, as well as the southern margin, of the Nain...
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Journal Article
Published: 21 January 2011
Canadian Journal of Earth Sciences (2011) 48 (2): 247-279.
... by hornblende and to a lesser extent biotite. Fig. 1. General geology of parts of the western Churchill Province and environs (modified from Berman et al. 2005 ). Abbreviations: Ag, Amer Group; Amer fz, Amer fault zone; Blg, Baker Lake Group; Bb, Barclay belt; CBb, Committee Bay belt; Pg, Penhryn...
FIGURES
Journal Article
Journal: GSA Bulletin
Published: 01 March 2007
GSA Bulletin (2007) 119 (3-4): 314-328.
.... 1.84–1.78 Ga Baker Sequence yield age spectra with significant groupings at 2.70 and 2.60 Ga, reflecting provenance chiefly from local sources in the northwestern Hearne domain of the western Churchill Province. Age spectra are consistent with sed-imentological and stratigraphic information, which...
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Journal Article
Published: 29 May 2002
Canadian Journal of Earth Sciences (2002) 39 (5): 639-663.
...Richard J. Wardle; Donald T. James; David J. Scott; Jeremy Hall Abstract The Paleoproterozoic southeastern Churchill Province (SECP) is located in the northeastern Canadian Shield of Labrador and Quebec. The SECP formed through the oblique collisions of the Archean Nain and Superior cratons...
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Journal Article
Published: 01 February 2005
The Canadian Mineralogist (2005) 43 (1): 409-442.
...Robert G. Berman; Mary Sanborn-Barrie; Richard A. Stern; Chris J. Carson Abstract De nouvelles contraintes sont maintenant disponibles pour élucider l’évolution paléoproterozoïque du domaine Rae, dans le secteur ouest de la Province de Churchill, au Nunavut; on se sert d’études intégrées des...
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Journal Article
Published: 31 July 2008
Canadian Journal of Earth Sciences (2008) 45 (6): 745-767.
... of the Central Hearne supracrustal belt, western Churchill Province. The Spi Group developed in a small, isolated basin (8 km 2 ) and is older than the Paleoproterozoic Hurwitz Group. Our data demonstrate that the basalts of the Spi Lake Formation are genetically related to the ca. 2450 Ma Kaminak dyke swarm...
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Journal Article
Published: 25 July 2005
Canadian Journal of Earth Sciences (2005) 42 (7): 1313-1330.
...K. MacLachlan; W.J. Davis; W.J. Davis; C. Relf Abstract The nature, timing and control of Archean crustal architecture on the distribution of Proterozoic reworking in Western Churchill Province are investigated in the Yathkyed Lake area, central Nunavut. The Tyrrell shear zone (TSZ) marks...
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Journal Article
Published: 10 February 2005
Canadian Journal of Earth Sciences (2005) 42 (1): 85-109.
...Kate MacLachlan; Kate MacLachlan; William J. Davis; Carolyn Relf Abstract In the Yathkyed Lake area the Tyrrell shear zone (TSZ) marks the boundary between the northwestern and central Hearne subdomains of the Western Churchill Province. The TSZ is dominated by Proterozoic dextral strain...
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Journal Article
Published: 15 September 2004
Canadian Journal of Earth Sciences (2004) 41 (9): 1049-1076.
... réponse à l’épaississement de la croûte épaisse vers 1870 Ma. Les nouvelles données soulignent l’importance d’un remaniement, au Paléoprotérozoïque, du centre du domaine Rae dans l’arrière-pays de l’orogène trans-hudsonien. [Traduit par la Rédaction] The western Churchill Province of the Canadian...
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Journal Article
Published: 01 January 2012
Rocky Mountain Geology (2012) 47 (1): 1-35.
...James V. Jones, III; Kristine Thrane Abstract Detrital zircon ages from quartzite and metaconglomerate exposed in the Park Range, Front Range, and Sawatch Range of northern and central Colorado reveal new information about age and provenance trends within the Yavapai province of southwestern...
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Journal Article
Published: 01 December 1986
Canadian Journal of Earth Sciences (1986) 23 (12): 2012-2023.
...Judith G. Patterson Abstract Aphebian supracrustal sequences occur as outliers throughout the northwestern portion of the Churchill Structural Province of the Canadian Shield. In the Amer Lake area, medium- to high-grade, polydeformed Archean rocks are unconformably overlain by the Amer...
Series: Geological Society, London, Special Publications
Published: 01 January 2009
DOI: 10.1144/SP318.7
EISBN: 9781862395664
... Moreover, within the composite Churchill domain, the crustal components were themselves in changing plate settings at various times during the preceding episodes of convergence and accretion that led to the systematic growth of the northern landmass prior to collision with the southern...
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Journal Article
Journal: Geology
Published: 01 January 1987
Geology (1987) 15 (1): 15-17.
... suggested by patterns of competitive overgrowth in certain species. Definite proof of encrustation by favositid corals is exhibited in an extraordinary example of an ancient rocky shore exposed for 350 m on Hudson Bay near Churchill, Manitoba. Carbonate strata attributed to the Upper Ordovician Port Nelson...
Journal Article
Journal: AAPG Bulletin
Published: 01 January 1957
AAPG Bulletin (1957) 41 (1): 70-103.
... considerable quartzite and some dolomite ( Christie, 1953 ). The presence of sediments which are the products of mature weathering has been used ( Gill, 1949 ) to differentiate the Churchill province from the Yellowknife province. The Yellowknife province is characterized by sediments of graywacke type. South...
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Journal Article
Published: 24 October 2000
Canadian Journal of Earth Sciences (2000) 37 (11): 1575-1596.
... basement rocks (27 new analyses) overlap with values for the western Churchill Province and are interpreted to represent Paleoproterozoic recycling of the latter. The similarity in U–Pb ages and partial overlap in Nd isotopic compositions of the Taltson basement gneissic rocks and the Buffalo Head terrane...
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Journal Article
Published: 01 January 2004
Exploration and Mining Geology (2004) 13 (1-4): 67-107.
...ROSS SHERLOCK; SALLY PEHRSSON; AMELIA V. LOGAN; R. BLAIR HRABI; WILLIAM J. DAVIS Abstract The Meadowbank gold deposits are hosted by a series of polydeformed and metamorphosed auriferous iron formations located in the Neoarchean Woodburn Lake group, western Churchill province, Nunavut...
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Journal Article
Published: 01 April 1987
Canadian Journal of Earth Sciences (1987) 24 (4): 813-825.
...Ronald Doig Abstract The Churchill Province north of the Proterozoic Cape Smith volcanic fold belt of Quebec may be divided into two parts. The first is a broad antiform of migmatitic gneisses (Deception gneisses) extending north from the fold belt ~50 km to Sugluk Inlet. The second is a 20 km wide...
Journal Article
Published: 01 November 1984
Environmental and Engineering Geoscience (1984) xxi (4): 389-405.
... lies close to the surface in the massive granites, gneisses, and quartzites of the Canadian Shield. The mechanism requires that ice-filled cracks be able to seal in high pore water pressures. Field measurements show that water pressures up to 400 kPa are attained within the confined water bodies...
Journal Article
Published: 01 January 2003
Journal of Paleontology (2003) 77 (1): 99-112.
... symbols are standard). Units Z-G are assigned to Churchill River Group. Z overlies, and contains large boulders of, Precambrian Churchill Quartzite; thickness not established. Clastic grains in Z-G are quartz-quartzite; basal part of G also contains dolomudstone clasts The stratigraphic interval...
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