U-Pb Geochronology of the Blake River Group, Abitibi Greenstone Belt, Quebec, and Implications for Base Metal Exploration,

2013 ◽  
Vol 109 (1) ◽  
pp. 27-59 ◽  
Author(s):  
V. McNicoll ◽  
J. Goutier ◽  
B. Dube ◽  
P. Mercier-Langevin ◽  
P.-S. Ross ◽  
...  
Keyword(s):  
Base Metal ◽  
Greenstone Belt ◽  
Abitibi Greenstone Belt

A Special Issue Devoted to Base Metal and Gold Metallogeny at Regional, Camp, and Deposit Scales in the Abitibi Greenstone Belt: Preface

2008 ◽  
Vol 103 (6) ◽  
pp. 1091-1096 ◽  
Author(s):  
J. A. Ayer ◽  
P. C. Thurston ◽  
B. Lafrance
Keyword(s):  
Base Metal ◽  
Greenstone Belt ◽  
Special Issue ◽  
Abitibi Greenstone Belt

scholarly journals Metallogeny of base metal deposits of the Abitibi Greenstone Belt

1995 ◽  
Author(s):  
G Tourigny
Keyword(s):  
Base Metal ◽  
Greenstone Belt ◽  
Abitibi Greenstone Belt

Ore mineralogy, pyrite chemistry, and S isotope systematics of magmatic-hydrothermal Au mineralization associated with the Mooshla Intrusive Complex (MIC), Doyon-Bousquet-LaRonde mining camp, Abitibi greenstone belt, Québec

2021 ◽  
Author(s):  
K Neyedley ◽  
J J Hanley ◽  
P Mercier-Langevin ◽  
M Fayek
Keyword(s):  
Trace Element ◽  
Base Metal ◽  
Greenstone Belt ◽  
Analytical Techniques ◽  
Trace Element Distribution ◽  
Intrusive Complex ◽  
Sulphur Isotope ◽  
Distribution Maps ◽  
Abitibi Greenstone Belt ◽  
Base Metal Sulphides

The Mooshla Intrusive Complex (MIC) is an Archean polyphase magmatic body located in the Doyon-Bousquet-LaRonde (DBL) mining camp of the Abitibi greenstone belt, Québec. The MIC is spatially associated with numerous gold (Au)-rich VMS, epizonal 'intrusion-related' Au-Cu vein systems, and shear zone-hosted (orogenic?) Au deposits. To elucidate genetic links between deposits and the MIC, mineralized samples from two of the epizonal 'intrusion-related' Au-Cu vein systems (Doyon and Grand Duc Au-Cu) have been characterized using a variety of analytical techniques. Preliminary results indicate gold (as electrum) from both deposits occurs relatively late in the systems as it is primarily observed along fractures in pyrite and gangue minerals. At Grand Duc gold appears to have formed syn- to post-crystallization relative to base metal sulphides (e.g. chalcopyrite, sphalerite, pyrrhotite), whereas base metal sulphides at Doyon are relatively rare. The accessory ore mineral assemblage at Doyon is relatively simple compared to Grand Duc, consisting of petzite (Ag3AuTe2), calaverite (AuTe2), and hessite (Ag2Te), while accessory ore minerals at Grand Duc are comprised of tellurobismuthite (Bi2Te3), volynskite (AgBiTe2), native Te, tsumoite (BiTe) or tetradymite (Bi2Te2S), altaite (PbTe), petzite, calaverite, and hessite. Pyrite trace element distribution maps from representative pyrite grains from Doyon and Grand Duc were collected and confirm petrographic observations that Au occurs relatively late. Pyrite from Doyon appears to have been initially trace-element poor, then became enriched in As, followed by the ore metal stage consisting of Au-Ag-Te-Bi-Pb-Cu enrichment and lastly a Co-Ni-Se(?) stage enrichment. Grand Duc pyrite is more complex with initial enrichments in Co-Se-As (Stage 1) followed by an increase in As-Co(?) concentrations (Stage 2). The ore metal stage (Stage 3) is indicated by another increase in As coupled with Au-Ag-Bi-Te-Sb-Pb-Ni-Cu-Zn-Sn-Cd-In enrichment. The final stage of pyrite growth (Stage 4) is represented by the same element assemblage as Stage 3 but at lower concentrations. Preliminary sulphur isotope data from Grand Duc indicates pyrite, pyrrhotite, and chalcopyrite all have similar delta-34S values (~1.5 � 1 permille) with no core-to-rim variations. Pyrite from Doyon has slightly higher delta-34S values (~2.5 � 1 permille) compared to Grand Duc but similarly does not show much core-to-rim variation. At Grand Duc, the occurrence of Au concentrating along the rim of pyrite grains and associated with an enrichment in As and other metals (Sb-Ag-Bi-Te) shares similarities with porphyry and epithermal deposits, and the overall metal association of Au with Te and Bi is a hallmark of other intrusion-related gold systems. The occurrence of the ore metal-rich rims on pyrite from Grand Duc could be related to fluid boiling which results in the destabilization of gold-bearing aqueous complexes. Pyrite from Doyon does not show this inferred boiling texture but shares characteristics of dissolution-reprecipitation processes, where metals in the pyrite lattice are dissolved and then reconcentrated into discrete mineral phases that commonly precipitate in voids and fractures created during pyrite dissolution.

The LaRonde Penna Au-Rich Volcanogenic Massive Sulfide Deposit, Abitibi Greenstone Belt, Quebec: Part I. Geology and Geochronology

2007 ◽  
Vol 102 (4) ◽  
pp. 585-609 ◽  
Author(s):  
P. Mercier-Langevin ◽  
B. Dube ◽  
M. D. Hannington ◽  
D. W. Davis ◽  
B. Lafrance ◽  
...  
Keyword(s):  
Greenstone Belt ◽  
Massive Sulfide ◽  
Sulfide Deposit ◽  
Massive Sulfide Deposit ◽  
Volcanogenic Massive Sulfide ◽  
Abitibi Greenstone Belt ◽  
Volcanogenic Massive Sulfide Deposit

Geologic evolution of the Late Archean Abitibi greenstone belt of Canada

Geology ◽  
1986 ◽  
Vol 14 (8) ◽  
pp. 707 ◽  
Author(s):  
John Ludden ◽  
Claude Hubert
Keyword(s):  
Greenstone Belt ◽  
Abitibi Greenstone Belt

Archean terrane docking: upper crust collision tectonics, Abitibi greenstone belt, Quebec, Canada

1996 ◽  
Vol 265 (1-2) ◽  
pp. 127-150 ◽  
Author(s):  
W.U Mueller ◽  
R Daigneault ◽  
J.K Mortensen ◽  
E.H Chown
Keyword(s):  
Greenstone Belt ◽  
Upper Crust ◽  
Abitibi Greenstone Belt ◽  
Collision Tectonics

2D-3C high-resolution seismic data from the Abitibi Greenstone Belt, Canada

2009 ◽  
Vol 472 (1-4) ◽  
pp. 226-237 ◽  
Author(s):  
David B. Snyder ◽  
Peter Cary ◽  
Matt Salisbury
Keyword(s):  
High Resolution ◽  
Seismic Data ◽  
Greenstone Belt ◽  
Abitibi Greenstone Belt

Nd and Pb isotope ratios of the Abitibi greenstone belt: new evidence for very early differentiation of the Earth

1994 ◽  
Vol 128 (3-4) ◽  
pp. 215-229 ◽  
Author(s):  
Jeffrey D. Vervoort ◽  
William M. White ◽  
Ralph I. Thorpe
Keyword(s):  
Greenstone Belt ◽  
Isotope Ratios ◽  
Pb Isotope ◽  
Early Differentiation ◽  
Abitibi Greenstone Belt ◽  
The Earth ◽  
New Evidence
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