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South Kawishiwi Intrusion

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Journal Article
Journal: Economic Geology
Published: 01 May 2011
Economic Geology (2011) 106 (3): 481-509.
...Benedek Gál; Ferenc Molnár; Dean M. Peterson Abstract The South Filson Creek mineralization occurs above the basal units of the South Kawishiwi intrusion and represents an uncommon geologic setting of Cu-Ni-platinum-group element (PGE) mineralization within the Duluth Complex. Unlike other...
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Journal Article
Journal: Economic Geology
Published: 01 August 2015
Economic Geology (2015) 110 (5): 1269-1293.
...Zsolt Benkó; Aberra Mogessie; Ferenc Molnár; Mark J. Severson; Steven A. Hauck; Sara Raič Abstract A strong relationship was documented in the charnockitic footwall at the Spruce Road Cu-Ni sulfide deposit (South Kawishiwi intrusion, Duluth Complex) between the contact metamorphic processes...
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Journal Article
Published: 01 August 1995
The Canadian Mineralogist (1995) 33 (4): 723-743.
Image
General stratigraphic section of the <b>South</b> <b>Kawishiwi</b> <b>intrusion</b> in the Spruc...
Published: 01 May 2011
Fig. 2 General stratigraphic section of the South Kawishiwi intrusion in the Spruce Road area, according to Severson (1994) . GRB = Giants Range batholith, BAN = Bottom Augite-troctolite/Norite, BH = Basal Heterogeneous zone, PEG = pegmatoidal unit, U1, U2, U3 = ultramafic units, AT&T
Image
Cu-Ni-PGE deposits in the <b>South</b> <b>Kawishiwi</b> <b>intrusion</b> under exploration with ...
Published: 01 May 2011
Fig. 3 Cu-Ni-PGE deposits in the South Kawishiwi intrusion under exploration with the overall distribution of precious metal-depleted (stage-I) and metal-enriched (stage-II) mineralizations. Modified after Peterson (2008) .
Journal Article
Journal: Economic Geology
Published: 01 March 2014
Economic Geology (2014) 109 (2): 309-324.
... found within the Partridge River and South Kawishiwi intrusions of the Duluth Complex occurs in a variety of rock types, all produced from varying degrees of fractionation of a high-Al olivine tholeiite (HAOT) parental magma. Mineralization is characterized by high Cu/Ni ratios (bulk rock values...
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Journal Article
Published: 01 April 1981
Canadian Journal of Earth Sciences (1981) 18 (4): 810-814.
... recognized by the displacement of plagioclase and plagioclase–olivine cumulate layers within the so-called South Kawishiwi intrusion. This work represents the first field documentation of extensive faulting in the Duluth complex and shows that fault offsets are an important complicating factor...
Image
Ni-Cu-PGE deposits located within the Partridge River and <b>South</b> <b>Kawishiwi</b> i...
Published: 01 March 2014
Fig. 2 Ni-Cu-PGE deposits located within the Partridge River and South Kawishiwi intrusions of the Duluth Complex.
Image
Fo values and Ni contents of olivine from the Eagle, <b>South</b> <b>Kawishiwi</b>, and P...
Published: 01 March 2014
Fig. 10 Fo values and Ni contents of olivine from the Eagle, South Kawishiwi, and Partridge River intrusions. Data from Lee and Ripley (1996) , Ripley at al. (2007), and Ding et al. (2010) .
Journal Article
Journal: Economic Geology
Published: 01 March 2004
Economic Geology (2004) 99 (2): 325-338.
... (1996) and was designed to address two aspects of the mineralization. First, the PGE occurrence is distinct from more sulfide-rich Ni-Cu-(± PGE) occurrences within basal troctolitic-gabbroic units of the Partridge River and South Kawishiwi intrusions of the Duluth Complex (e.g., Ripley, 1990 ; Hauck...
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Journal Article
Journal: Economic Geology
Published: 01 August 2000
Economic Geology (2000) 95 (5): 929-943.
... occurrences spread over a distance of 55 km occur along the basal contact of two adjacent troctolitic intrusions, the Partridge River and South Kawishiwi intrusions ( Severson and Hauck, 1990 ; Severson, 1994 ). These intrusions are host to 4.4 billion tons of subeconomic mineralization grading 0.66 percent...
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Journal Article
Published: 01 August 2004
Mineralogical Magazine (2004) 68 (4): 615-632.
... PdCu alloy in a drill core (DU-15) from the South Kawishiwi Intrusion of the Duluth Layered Intrusion Complex, Minnesota, USA ( Saini-Eidukat et al. , 1990 ). The mineral may be equivalent to skaergaardite, but no XRD studies were performed on the material. The Duluth intrusion is composed of several...
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Journal Article
Journal: Economic Geology
Published: 01 June 2000
Economic Geology (2000) 95 (4): 901-915.
...James M. Brenan; Chusi Li Abstract Measurements of the Fe and Ni content of olivine and coexisting bulk sulfide from the different sulfide segregations within the Voisey’s Bay intrusion reveal systematic variations in Fe-Ni partitioning with sulfide nickel content. In light of the recent...
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Image
Generalized geologic map of northeastern Minnesota. Highlighted <b>intrusions</b> ...
Published: 01 May 2011
Fig. 1 Generalized geologic map of northeastern Minnesota. Highlighted intrusions of the Layered Series: BEI = Bald Eagle intrusion, NLM = Nickel Lake macrodike, SKI = South Kawishiwi intrusion. Modified after Miller et al. (2001) .
Image
Triangular plot of apatite halogen contents as a function of the proximity ...
Published: 01 August 2015
Fig. 8 Triangular plot of apatite halogen contents as a function of the proximity of the footwall-intrusion contact in the charnockitic footwall of the South Kawishiwi intrusion.
Journal Article
Journal: Economic Geology
Published: 01 August 2018
Economic Geology (2018) 113 (5): 1161-1179.
... sulfide assimilation : Geochimica et Cosmochimica Acta , v. 133 , p. 47 – 67 . Lee , I. , and Ripley , E.M. , 1996 , Mineralogic and oxygen isotopic studies of open system magmatic processes in the South Kawishiwi Intrusion, Spruce Road area, Duluth Complex, Minnesota : Journal...
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Image
A. The Midcontinent rift in North America (modified after  Ojakangas et al....
Published: 01 August 2015
Fig. 1 A. The Midcontinent rift in North America (modified after Ojakangas et al., 2001 ). B. Geologic map of the Duluth Complex. The South Kawishiwi intrusion studied in this work is highlighted by a black polygon. C. Geology of the South Kawishiwi intrusion and its surroundings. D. Detailed
Image
Whole-rock metal contents (Cu, Ni, Au, Pt, Pd) in the WM-001 drill core ( P...
Published: 01 August 2015
Fig. 12 Whole-rock metal contents (Cu, Ni, Au, Pt, Pd) in the WM-001 drill core ( Patelke, 2003 ). Abbreviations: GRB = Giants Range batholiths, SKI/BMZ = South Kawishiwi intrusion/Basal mineralized zone.
Journal Article
Journal: Economic Geology
Published: 01 August 2015
Economic Geology (2015) 110 (5): 1235-1267.
... significant Cu-Ni sulfide mineralization comprise the northwestern part of the Duluth Complex and the Partridge River and South Kawishiwi intrusions. Each contains very large deposits of low-grade disseminated Cu-PGE-Ni sulfide mineralization in the lower part of the host intrusion ( Miller et al., 2002...
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Chondrite-normalized (according to the values of  McDonough and Sun, 1995 )...
Published: 01 August 2015
Fig. 13 Chondrite-normalized (according to the values of McDonough and Sun, 1995 ) plot, showing PGE patterns of various samples from the WM-002 drill core. Shaded area: representative PGE patterns of various rock types in the South Kawishiwi intrusion (data are from Hauck et al., 1997 ). See