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Journal Article

THE SPINIFEX LAYER OF THE BOSTON CREEK FERROPICRITE, ABITIBI BELT, ONTARIO: MINERALOGICAL AND GEOCHEMICAL EVIDENCE FOR AN UNUSUAL HISTORY OF CLINOPYROXENE GROWTH AND MAGMA RECHARGE Available to Purchase

James H. Crocket, David M. Leng, David J. Good, William E. Stone, Michelle S. Stone
Published: 01 October 2005
The Canadian Mineralogist (2005) 43 (5): 1759–1780.
DOI: https://doi.org/10.2113/gscanmin.43.5.1759
...James H. Crocket; David M. Leng; David J. Good; William E. Stone; Michelle S. Stone Abstract The Boston Creek ferropicrite (BCF), exposed near Kirkland Lake in the Abitibi Belt, Ontario, is a differentiated layered mafic–ultramafic unit of Archean age with a remarkably thick layer of spinifex...
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View PDF for article title, THE SPINIFEX LAYER OF THE <span class="search-highlight">BOSTON</span> <span class="search-highlight">CREEK</span> FERROPICRITE, ABITIBI BELT, ONTARIO: MINERALOGICAL AND GEOCHEMICAL EVIDENCE FOR AN UNUSUAL HISTORY OF CLINOPYROXENE GROWTH AND MAGMA RECHARGE
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Journal Article

Magnetic signature of magnetite-enriched rocks hosting platinum-group element mineralization within the Archean Boston Creek Flow, Ontario Available to Purchase

Michelle S. Larson, William E. Stone, William A. Morris, James H. Crocket
Journal: Geophysics
Published: 01 April 1998
Geophysics (1998) 63 (2): 440–445.
DOI: https://doi.org/10.1190/1.1444344
... the Boston Creek Flow iron-rich basalt, Archean Abitibi Greenstone Belt, Ontario. The magnetic anomalies confirm the presence of magnetite-enriched zones (up to 20 modal%), and reveal that they are ovoid in shape, up to 10 m in size, and along strike from each other in the central gabbro-diorite layer...
View PDF for article title, Magnetic signature of magnetite-enriched rocks hosting platinum-group element mineralization within the Archean <span class="search-highlight">Boston</span> <span class="search-highlight">Creek</span> Flow, Ontario
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Journal Article

Sulfide-poor platinum-group mineralization in komatiitic systems; Boston Creek flow, layered basaltic komatiite, Abitibi Belt, Ontario Available to Purchase

W. E. Stone, J. H. Crocket, M. E. Fleet
Journal: Economic Geology
Published: 01 July 1993
Economic Geology (1993) 88 (4): 817–836.
DOI: https://doi.org/10.2113/gsecongeo.88.4.817
...-poor PGE mineralization in the Boston Creek flow layered basaltic komatiite of the Abitibi belt. High PGE levels characterize a 2-m-thick interval overlapping the contact of the clinopyroxenite and gabbro layers (50 ppb Pt, 75 ppb Pd, 10 ppb Au), the basal part of the clinopyroxenite layer (20 ppb Pt...
View PDF for article title, Sulfide-poor platinum-group mineralization in komatiitic systems; <span class="search-highlight">Boston</span> <span class="search-highlight">Creek</span> flow, layered basaltic komatiite, Abitibi Belt, Ontario
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Journal Article

Platinum-group minerals in pyroxenite from the Boston Creek flow basaltic komatiite, Abitibi greenstone belt, Ontario Available to Purchase

W. E. Stone, M. E. Fleet, James H. Crocket, D. M. Kingston
Published: 01 March 1992
The Canadian Mineralogist (1992) 30 (1): 109–119.
View PDF for article title, Platinum-group minerals in pyroxenite from the <span class="search-highlight">Boston</span> <span class="search-highlight">Creek</span> flow basaltic komatiite, Abitibi greenstone belt, Ontario
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The location and geological setting of the Boston Creek ferropicrite (BCF) in the Archean Abitibi greenstone belt, Ontario (Stone et al. 1987, Ayer &amp; Trowell 2000). Legend: 1: location of the Boston Creek ferropicrite; 2 and 3: locations of ultramafic sills, Munro–McCool townships and Sothman Township, respectively (Stone et al. 2003).

The location and geological setting of the Boston Creek ferropicrite (BCF) ... Available to Purchase

Published: 01 October 2005
F ig . 1. The location and geological setting of the Boston Creek ferropicrite (BCF) in the Archean Abitibi greenstone belt, Ontario ( Stone et al. 1987 , Ayer & Trowell 2000 ). Legend: 1: location of the Boston Creek ferropicrite; 2 and 3: locations of ultramafic sills, Munro–McCool
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Variation in δD‰ values for igneous amphibole from the Boston Creek ferropicrite compared to other major rock-types globally. Values for the ferropicrite amphibole exceed SMOW and igneous amphiboles from other Abitibi units, and even the Nushan xenoliths (Deloule et al. 1991a, 1995, Wagner et al. 1995, Valley et al. 1998, Xia et al. 2002, Stone et al. 2003). Acronyms: MORB: mid-ocean-ridge basalts, IAB: island-arc basalt, CFB: continental flood basalt, and OIB: ocean-island basalt.

Variation in δD‰ values for igneous amphibole from the Boston Creek ferropi... Available to Purchase

Published: 01 October 2005
F ig . 7. Variation in δD‰ values for igneous amphibole from the Boston Creek ferropicrite compared to other major rock-types globally. Values for the ferropicrite amphibole exceed SMOW and igneous amphiboles from other Abitibi units, and even the Nushan xenoliths ( Deloule et al. 1991a
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Magmatic degassing model for the Boston Creek ferropicritic melt at 1000°C. Partial melting in the mantle imparts a primary magmatic δD value of −60‰ on the magma (1). Gases escaped from the melt as the reduced species H during magmatic emplacement (2). The gas/melt fractionation-factor for the H isotope is negative, and the escaped H gas is isotopically lighter, with lower δD values, whereas the residual H2O is heavier, with higher δD values. With progressive exsolution of volatiles, δD values for degassed melt shifted from the initial mantle-type value to progressively higher and, in some grains, a positive value (3).

Magmatic degassing model for the Boston Creek ferropicritic melt at 1000°C.... Available to Purchase

Published: 01 October 2005
F ig . 8. Magmatic degassing model for the Boston Creek ferropicritic melt at 1000°C. Partial melting in the mantle imparts a primary magmatic δD value of −60‰ on the magma (1). Gases escaped from the melt as the reduced species H during magmatic emplacement (2). The gas/melt fractionation
Image
Location map for the Boston Creek ferropicrite showing position of Transect 2 in the northwestern part of the unit (after Stone et al. 1996). The locations of Fred’s Flow komatiitic basalt and Theo’s Flow tholeiitic basalt, Munro Township, also are shown.

Location map for the Boston Creek ferropicrite showing position of Transect... Available to Purchase

Published: 01 October 2005
F ig . 1. Location map for the Boston Creek ferropicrite showing position of Transect 2 in the northwestern part of the unit (after Stone et al. 1996 ). The locations of Fred’s Flow komatiitic basalt and Theo’s Flow tholeiitic basalt, Munro Township, also are shown.
Journal Article

ANOMALOUSLY HIGH δD VALUES IN AN ARCHEAN FERROPICRITIC MELT: IMPLICATIONS FOR MAGMA DEGASSING Available to Purchase

William Edward Stone, Etienne Deloule, Stephen W. Beresford, Marco Fiorentini
Published: 01 October 2005
The Canadian Mineralogist (2005) 43 (5): 1745–1758.
DOI: https://doi.org/10.2113/gscanmin.43.5.1745
...F ig . 1. The location and geological setting of the Boston Creek ferropicrite (BCF) in the Archean Abitibi greenstone belt, Ontario ( Stone et al. 1987 , Ayer & Trowell 2000 ). Legend: 1: location of the Boston Creek ferropicrite; 2 and 3: locations of ultramafic sills, Munro–McCool...
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View PDF for article title, ANOMALOUSLY HIGH δD VALUES IN AN ARCHEAN FERROPICRITIC MELT: IMPLICATIONS FOR MAGMA DEGASSING
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Journal Article

Petrography and geochemistry of an unusual Fe-rich basaltic komatiite from Boston Township, northeastern Ontario Free

W. E. Stone, L. S. Jensen, W. R. Church
Published: 01 December 1987
Canadian Journal of Earth Sciences (1987) 24 (12): 2537–2550.
DOI: https://doi.org/10.1139/e87-237
...W. E. Stone; L. S. Jensen; W. R. Church Abstract The Boston Creek Flow is a thick, Archean layered basaltic komatiite lava flow located 16 km south of Kirkland Lake, Ontario, within the Abitibi greenstone belt. It is superficially similar to the layered flows of Munro Township in that it consists...
Add to Citation Manager for Petrography and geochemistry of an unusual Fe-rich basaltic komatiite from <span class="search-highlight">Boston</span> Township, northeastern Ontario
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A, B. Major-element plots showing the composition of magnesiohastingsite (VIAl &lt; Fe3+, Leake et al. 1997) from the Boston Creek ferropicrite (BCF), consistent with an igneous origin. C. Major-element plot showing higher Fe3+ content relative to Mg# for the igneous amphibole from the Boston Creek ferropicrite compared to amphiboles from thick, differentiated ultramafic sills in the area. The higher Fe3+ content for the ferropicrite amphibole suggests an increased state of melt oxidation during crystallization.

A, B. Major-element plots showing the composition of magnesiohastingsite ( ... Available to Purchase

Published: 01 October 2005
F ig . 4. A, B. Major-element plots showing the composition of magnesiohastingsite ( VI Al < Fe 3+ , Leake et al. 1997 ) from the Boston Creek ferropicrite (BCF), consistent with an igneous origin. C. Major-element plot showing higher Fe 3+ content relative to Mg# for the igneous
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AVERAGE COMPOSITIONS OF CORE AND RIM OF SPINIFEX CLINOPYROXENE, BOSTON CREE... Available to Purchase

Published: 01 October 2005
TABLE 1. AVERAGE COMPOSITIONS OF CORE AND RIM OF SPINIFEX CLINOPYROXENE, BOSTON CREEK FERROPICRITE
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COMPOSITIONS OF EMBAYMENT AND OVERGROWTH CLINOPYROXENE, SPINIFEX LAYER, BOS... Available to Purchase

Published: 01 October 2005
TABLE 2. COMPOSITIONS OF EMBAYMENT AND OVERGROWTH CLINOPYROXENE, SPINIFEX LAYER, BOSTON CREEK FERROPICRITE
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WHOLE-ROCK CHEMICAL COMPOSITIONS OF THE SPINIFEX-TEXTURED LAYER OF THE BOST... Available to Purchase

Published: 01 October 2005
TABLE 3. WHOLE-ROCK CHEMICAL COMPOSITIONS OF THE SPINIFEX-TEXTURED LAYER OF THE BOSTON CREEK FERROPICRITE
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WHOLE-ROCK CHEMICAL COMPOSITIONS OF THE SPINIFEX-TEXTURED LAYER OF THE BOST... Available to Purchase

Published: 01 October 2005
TABLE 3. WHOLE-ROCK CHEMICAL COMPOSITIONS OF THE SPINIFEX-TEXTURED LAYER OF THE BOSTON CREEK FERROPICRITE
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MAJOR- AND MINOR-ELEMENT COMPOSITION OF THE IGNEOUS AMPHIBOLE FROM THE BOST... Available to Purchase

Published: 01 October 2005
TABLE 1. MAJOR- AND MINOR-ELEMENT COMPOSITION OF THE IGNEOUS AMPHIBOLE FROM THE BOSTON CREEK FERROPICRITE 1
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AMOUNT OF H 2 O AND H ISOTOPE COMPOSITIONS OF IGNEOUS AMPHIBOLE FROM THE BO... Available to Purchase

Published: 01 October 2005
TABLE 3. AMOUNT OF H 2 O AND H ISOTOPE COMPOSITIONS OF IGNEOUS AMPHIBOLE FROM THE BOSTON CREEK FERROPICRITE
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A stratigraphic section of the spinifex-textured clinopyroxenite layer along Transect 2 of the Boston Creek ferropicrite.

A stratigraphic section of the spinifex-textured clinopyroxenite layer alon... Available to Purchase

Published: 01 October 2005
F ig . 2. A stratigraphic section of the spinifex-textured clinopyroxenite layer along Transect 2 of the Boston Creek ferropicrite.
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CORRELATION COEFFICIENTS (PEARSON’S R) FOR WHOLE-ROCK MAJOR AND TRACE ELEME... Available to Purchase

Published: 01 October 2005
TABLE 4. CORRELATION COEFFICIENTS (PEARSON’S R) FOR WHOLE-ROCK MAJOR AND TRACE ELEMENT CONTENTS IN THE BOSTON CREEK FERROPICRITE LAYER
Journal Article

A Seismic Hazards Overview of the Urban Regions of Nevada: Recent Advancements and Research Directions Available to Purchase

John G. Anderson, Richard D. Koehler, Rachel Abercrombie, Sean Kamran Ahdi, Stephen Angster, Jayne Bormann, James N. Brune, Seth M. Dee, Craig dePolo, Stephen E. Dickenson, Michelle Dunn, James E. Faulds, William C. Hammond, Rachel Hatch, Annie Kell, Graham Kent, Corné Kreemer, John Louie, Ian Pierce, Christine J. Ruhl, Kenneth D. Smith, Wanda Taylor, Steven G. Wesnousky, Ivan Wong
Published: 05 June 2019
Seismological Research Letters (2019) 90 (4): 1577–1583.
DOI: https://doi.org/10.1785/0220180357
... to the southern limits of the city. Need dates and offsets for multiple prehistoric ruptures Optimal trench site at Thomas Creek on United States Forest Service land. Multiple sites would be better than just one 1 Genoa system Dominates hazard for Carson City and Douglas County. Multiple splays at north...
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