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Creighton Embayment

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A. North-south section through the <b>Creighton</b> <b>embayment</b>, showing the locatio...
Published: 01 September 2010
Fig. 2 A. North-south section through the Creighton embayment, showing the locations of the sublayer and the sulfide orebodies. B. Plan view. C. Simplified longitudinal section (W-E) of the Creighton-Gertrude deposits, showing sample locations along the 402 trough. The mineralization is projected
Journal Article
Journal: Economic Geology
Published: 01 December 2001
Economic Geology (2001) 96 (8): 1855-1875.
... with a Ni/Cu ~1. The formation of the geologically complex and heavily contaminated sublayer is believed to either accompany or postdate offset formation. The sublayer at the Whistle and Creighton mines occupies embayment structures at the base of the Sudbury Igneous Complex, which are directly connected...
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Journal Article
Journal: Economic Geology
Published: 01 September 2010
Economic Geology (2010) 105 (6): 1071-1096.
...Fig. 2 A. North-south section through the Creighton embayment, showing the locations of the sublayer and the sulfide orebodies. B. Plan view. C. Simplified longitudinal section (W-E) of the Creighton-Gertrude deposits, showing sample locations along the 402 trough. The mineralization is projected...
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Journal Article
Published: 01 September 2017
The Canadian Mineralogist (2017) 55 (5): 909-943.
... enclosed within the granite ( Riller 2009 , O'Callaghan et al . 2016 ). The Creighton deposit consists of contact-type Ni-Cu sulfide mineralization occupying a branched main embayment ∼0.5 km wide and extending to depths exceeding 3 km ( Rousell & Brown 2009 , Dare et al . 2010 ). The near-surface...
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Journal Article
Journal: Economic Geology
Published: 01 May 1997
Economic Geology (1997) 92 (3): 289-307.
.... We show that the main mass has many compositional traits similar to those of most of the offset dike quartz diorites (e.g., the Parkin offset dike: La/Sm = 6.3, La/Nb = 4.5; Th/Zr = 0.05) and of embayment-related leucocratic norites from the Whistle mine (La/Sm = 6.2, La/Nb = 5.0, Th/Zr = 0.02...
Journal Article
Journal: Economic Geology
Published: 01 September 2009
Economic Geology (2009) 104 (6): 869-879.
...E. G. Potter; R. P. Taylor Abstract The Cobalt Embayment is a large (~60,000 km 2 ), irregular domain of Paleoproterozoic (2.5–2.2 Ga) siliciclastic sedimentary rocks (i.e., the Huronian Supergroup) that unconformably overlies Archean basement rocks of the Abitibi greenstone belt. The Nipissing...
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Journal Article
Published: 01 April 2010
The Canadian Mineralogist (2010) 48 (2): 391-414.
...Eric G. Potter; Eric G. Potter; Richard P. Taylor Abstract The Cobalt Embayment is a large (~30,000 km 2 ) domain of Paleoproterozoic (2.45–2.22 Ga) siliciclastic sedimentary rocks (the Huronian Supergroup) that unconformably overlies Archean basement rocks of the Abitibi Greenstone Belt...
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Journal Article
Journal: Economic Geology
Published: 01 September 2005
Economic Geology (2005) 100 (6): 1207-1227.
... melts formed the Sudbury Igneous Complex and also were emplaced as radial and concentric dikes within the target rocks. The Whistle dike, one of the radial “offset” dikes in the Sudbury impact structure, is connected to the Sudbury Igneous Complex by the Whistle embayment structure, which is composed...
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Journal Article
Journal: Economic Geology
Published: 01 January 2002
Economic Geology (2002) 97 (1): 125-143.
... rocks along the west, north, and east margins of the Sudbury structure. In areas where there are depressions or embayments in the footwall, the footwall breccia and basal units of the Sudbury Igneous Complex are thickened, and the footwall breccia is variably mineralized. Mineralogical and textural...
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Journal Article
Journal: Economic Geology
Published: 01 March 2014
Economic Geology (2014) 109 (2): 367-386.
... and Fe/Ni ratios, very similar to those of undeformed disseminated sulfides and contact-type massive ores at the less deformed Creighton deposit. This suggests that the mobilization of the breccia ores by ductile plastic flow during D 1 and D 2 did not significantly alter their original magmatic...
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Journal Article
Journal: Economic Geology
Published: 01 November 2002
Economic Geology (2002) 97 (7): 1399-1418.
..., and the Murray and Creighton granitic plutons. The purpose of this study is describe the Whistle-Parkin offset dike system and the relationship it has with the Sudbury structure. The geology and geochemistry of the Whistle embayment has been previously reported in Lightfoot et al. (1997c) . This study...
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Journal Article
Journal: GSA Bulletin
Published: 01 November 2005
GSA Bulletin (2005) 117 (11-12): 1427-1450.
... by the embayment topography of the crater floor, which in turn played a pivotal role in directing sulfide deposition into the embayments. All further cooling was by conduction of heat through the upper and lower boundaries during which time solidification fronts were established and propagated inward from...
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Journal Article
Published: 11 February 2014
Canadian Journal of Earth Sciences (2014) 51 (5): 466-484.
...Bruno Lafrance; Lindsay Bygnes; Andrew M. McDonald Abstract The Whistle offset dike is a radial dike linked to the ca. 1850 Ma Sudbury Igneous Complex (SIC) in Sudbury, Ontario. It is linked through the funnel-shaped Whistle embayment which formed as a depression along the floor of a superheated...
Journal Article
Journal: Economic Geology
Published: 01 November 2002
Economic Geology (2002) 97 (7): 1577-1606.
... sulfide particles inside the magma chambers. Based on the proposed basal accumulation model, the best prospective mineralization is most likely to occur in embayments along the sidewall and floor of the intrusions. † Corresponding author: e-mail, rjames@nickel.laurentian.ca Economic Geology...
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Image
(A) Calcic amphibole classification scheme from  Leake  et al . (1997)  dem...
Published: 01 September 2017
from the Coleman Mine. (B) Titanite analyses from the Creighton Mine exhibiting the increased Al + Fe content from distal samples, ∼0.5–1 km from the embayment (blue), to samples within the Creighton Deep zone (red).
Image
A. Field image of Sudbury breccia outcrop at South Pump Lake, showing lithi...
Published: 01 November 2016
of view illustrates the very fine grained matrix hosting quartz and feldspar lithic fragments and green chlorite patches. C. Thin section of Sudbury breccia in plane-polarized light from the Creighton embayment in the South Range, showing a coarser matrix, with brown biotite and rare titanite. D. Subgrain
Image
Mantle-normalized whole-rock Ni-PGE-Cu patterns for sulfides (normalized to...
Published: 01 September 2010
) and the shaded fields represent the larger Creighton PGE dataset from Naldrett and others ( n = 370: Naldrett et al., 1999 ), which includes sulfides from the Creighton Main embayment orebodies (e.g., Deep 400). The steeply sloping PGE pattern of Gertrude norite is typical of the gabbronorite-hosted sulfides
Journal Article
Journal: Economic Geology
Published: 01 November 2016
Economic Geology (2016) 111 (7): 1705-1729.
... of view illustrates the very fine grained matrix hosting quartz and feldspar lithic fragments and green chlorite patches. C. Thin section of Sudbury breccia in plane-polarized light from the Creighton embayment in the South Range, showing a coarser matrix, with brown biotite and rare titanite. D. Subgrain...
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Journal Article
Journal: Interpretation
Published: 20 May 2016
Interpretation (2016) 4 (3): T281-T290.
.... An emphasis toward exploration within the QD offset dike environment would eventually transpire, leading to the initial stages of the Victoria discovery. Figure 2. Victoria property map. The Ethel Lake QD dike displays an apparent dextral offset of approximately 1 km south of the Creighton. Ore bodies...
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Journal Article
Journal: Economic Geology
Published: 01 May 2017
Economic Geology (2017) 112 (3): 569-590.
... (Creighton embayment: Darling et al., 2010a ). This study was designed to expand on earlier work by Dickin et al. (1999) , Darling et al. (2010a , b ), and Darling et al. (2012) by analyzing more rocks across a broader range of locations and sets out to address the following questions: Can...
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