scholarly journals Hypogene mineralogy and paragenesis of the Bald Mountain massive sulfide deposit, Aroostook County, Maine

1997 ◽  
Author(s):  
J.F. Slack ◽  
M.J. Flohr ◽  
M.V. Scully
Keyword(s):  
Massive Sulfide ◽  
Sulfide Deposit ◽  
Aroostook County ◽  
Massive Sulfide Deposit

Oxygen isotope geochemistry of the Sullivan massive sulfide deposit, Kimberley, British Columbia

1984 ◽  
Vol 79 (5) ◽  
pp. 933-946 ◽  
Author(s):  
Bruce E. Nesbitt ◽  
Fred J. Longstaffe ◽  
David R. Shaw ◽  
Karlis Muehlenbachs
Keyword(s):  
British Columbia ◽  
Oxygen Isotope ◽  
Isotope Geochemistry ◽  
Massive Sulfide ◽  
Sulfide Deposit ◽  
Massive Sulfide Deposit

scholarly journals Indium and selenium distribution in the Neves-Corvo deposit, Iberian Pyrite Belt, Portugal

2018 ◽  
Vol 82 (S1) ◽  
pp. S5-S41 ◽  
Author(s):  
J. R. S. Carvalho ◽  
J. M. R. S. Relvas ◽  
A. M. M. Pinto ◽  
M. Frenzel ◽  
J. Krause ◽  
...  
Keyword(s):  
Massive Sulfide ◽  
Iberian Pyrite Belt ◽  
Sulfide Deposit ◽  
Massive Sulfide Deposit ◽  
Actual Distribution ◽  
Shear Structures ◽  
Ore Minerals ◽  
High Concentrations ◽  
Ore Types ◽  
Zinc Concentrate

ABSTRACTHigh concentrations of indium (In) and selenium (Se) have been reported in the Neves-Corvo volcanic-hosted massive sulfide deposit, Portugal. The distribution of these ore metals in the deposit is complex as a result of the combined effects of early ore-forming processes and late tectonometamorphic remobilization. The In and Se contents are higher in Cu-rich ore types, and lower in Zn-rich ore types. At the deposit scale, both In and Se correlate positively with Cu, whereas their correlations with Zn are close to zero. This argues for a genetic connection between Cu, In and Se in terms of metal sourcing and precipitation. However, re-distribution and re-concentration of In and Se associated with tectonometamorphic deformation are also processes of major importance for the actual distribution of these metals throughout the whole deposit. Although minor roquesite and other In-bearing phases were recognized, it is clear that most In within the deposit is found incorporated within sphalerite and chalcopyrite. When chalcopyrite and sphalerite coexist, the In content in sphalerite (avg. 1400 ppm) is, on average, 2–3 times higher than in chalcopyrite (avg. 660 ppm). The In content in stannite (avg. 1.3 wt.%) is even higher than in sphalerite, but the overall abundance of stannite is subordinate to either sphalerite or chalcopyrite. Selenium is dispersed widely between many different ore minerals, but galena is the main Se-carrier. On average, the Se content in galena is ~50 times greater than in either chalcopyrite (avg. 610 ppm) or sphalerite (avg. 590 ppm). The copper concentrate produced at Neves-Corvo contains very significant In (+Se) content, well above economic values if the copper smelters recovered it. Moreover, the high In content of sphalerite from some Cu-Zn ores, or associated with shear structures, could possibly justify, in the future, a selective exploitation strategy for the production of an In-rich zinc concentrate.

scholarly journals Subseafloor Alteration of a Modern Mafic-Volcaniclastic Hosted Seafloor Massive Sulfide Deposit

2020 ◽  
Author(s):  
Melissa. O Anderson ◽  
Mark Hannington ◽  
Timothy McConachy ◽  
John Jamieson ◽  
Thor Hansteen ◽  
...  
Keyword(s):  
Massive Sulfide ◽  
Sulfide Deposit ◽  
Massive Sulfide Deposit ◽  
Seafloor Massive Sulfide
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