Matches in SemOpenAlex for { <https://semopenalex.org/work/W4311462076> ?p ?o ?g. }
- W4311462076 endingPage "105256" @default.
- W4311462076 startingPage "105256" @default.
- W4311462076 abstract "The Jaguar nickel deposit represents an important and unconventional discovery of hydrothermal Ni resources (58.9 Mt @ 0.95% Ni) associated with magnetite and apatite within the Carajás Mineral Province, Northern Brazil. The Jaguar deposit shares several similarities with iron oxide copper–gold (IOCG) deposits of the Carajás Mineral Province, especially regarding the structural control, and the hydrothermal alteration. Although IOCG and Kiruna-type iron oxide-apatite (IOA) deposits are closely associated in several geological provinces, this association has not yet been fully constrained in the Carajás Mineral Province. The Jaguar deposit occurs near mafic–ultramafic intrusions, along a regional fault zone, and is hosted either by granitic (northern portion) or felsic subvolcanic (southern portion) rocks. It is characterized by sub-vertical zones hosting a biotite-chlorite (Bt-Chl) hydrothermal alteration with ductile structures and disseminated sulfides (pyrite and millerite) and magnetite. These zones are overprinted by sulfide-magnetite-apatite-bearing breccias, which represent the main mineralization bodies. The sulfide assemblage in the mineralized zones is dominated by pyrite, pentlandite and millerite, with minor sphalerite and chalcopyrite. We have investigated the concentration of trace elements in the magnetite and sulfides from the host rocks, different alteration facies and the mineralization at the Jaguar deposit by LA-ICP-MS. Magnetite composition ranges from higher Al, Mn, Ti and V contents, for at least part of those in host rocks (granitic and felsic subvolcanic) and Bt-Chl alteration, into lower contents in the magnetite-apatite alteration, associated with the main Ni mineralization. Magnetite with higher Ti and V contents in host rocks is associated with discrete hydrothermal alteration pockets, have high Ni/Cr ratios and plot in high temperature hydrothermal fields in multi-element diagrams. Therefore, we support that these features are compatible with a hydrothermal origin. Anomalously high-Ni contents in magnetite point that the Neoarchean mafic–ultramafic layered intrusions of the Carajás Province represent potential Ni sources for hydrothermal remobilization. Anomalously high V contents in magnetite suggest lower fO2 conditions upon the formation of the deposit. The concentration of trace elements in magnetite associated with the Jaguar deposit is similar to those from other IOCG deposits from the Carajás Province (but with higher V and Ni contents), especially the Sossego mine in the Southern Copper Belt, indicating that it could represent a Ni-rich member of the regional-scale IOCG mineral system at Carajás. Pyrite and chalcopyrite have a composition similar to those from magmatic deposits, when using previously proposed discriminant diagrams, but this is also the case for other IOA and IOCG deposits. However, low PGE contents (Ru, Rh, Ir and Os) in pyrite from the Jaguar deposit support a hydrothermal origin. Our results highlight that the classifications provided by available discriminant diagrams are not unequivocal. We suggest that multi-element diagrams represent a complementary approach to binary plots and provide a more comprehensive classification for the use of indicator minerals." @default.
- W4311462076 created "2022-12-26" @default.
- W4311462076 creator A5003306005 @default.
- W4311462076 creator A5026970077 @default.
- W4311462076 creator A5029232186 @default.
- W4311462076 creator A5046267770 @default.
- W4311462076 creator A5059954031 @default.
- W4311462076 date "2023-01-01" @default.
- W4311462076 modified "2023-09-25" @default.
- W4311462076 title "The distribution of trace elements in sulfides and magnetite from the Jaguar hydrothermal nickel deposit: Exploring the link with IOA and IOCG deposits within the Carajás Mineral Province, Brazil" @default.
- W4311462076 cites W1048007205 @default.
- W4311462076 cites W1700952251 @default.
- W4311462076 cites W1744416065 @default.
- W4311462076 cites W1793987088 @default.
- W4311462076 cites W1967291731 @default.
- W4311462076 cites W1967794122 @default.
- W4311462076 cites W1973573652 @default.
- W4311462076 cites W1976522262 @default.
- W4311462076 cites W1984070213 @default.
- W4311462076 cites W1985431307 @default.
- W4311462076 cites W1985847809 @default.
- W4311462076 cites W1987734384 @default.
- W4311462076 cites W1990704435 @default.
- W4311462076 cites W1992358796 @default.
- W4311462076 cites W1994902357 @default.
- W4311462076 cites W1995036558 @default.
- W4311462076 cites W1996236623 @default.
- W4311462076 cites W1997365786 @default.
- W4311462076 cites W1999726370 @default.
- W4311462076 cites W2003331679 @default.
- W4311462076 cites W2005724647 @default.
- W4311462076 cites W2006368452 @default.
- W4311462076 cites W2017095019 @default.
- W4311462076 cites W2018366877 @default.
- W4311462076 cites W2027372631 @default.
- W4311462076 cites W2036120283 @default.
- W4311462076 cites W2046096314 @default.
- W4311462076 cites W2049241235 @default.
- W4311462076 cites W2052060891 @default.
- W4311462076 cites W2054767078 @default.
- W4311462076 cites W2066331167 @default.
- W4311462076 cites W2079629993 @default.
- W4311462076 cites W2081015119 @default.
- W4311462076 cites W2088296581 @default.
- W4311462076 cites W2088442578 @default.
- W4311462076 cites W2089507620 @default.
- W4311462076 cites W2097871835 @default.
- W4311462076 cites W2099338420 @default.
- W4311462076 cites W2101019006 @default.
- W4311462076 cites W2105963017 @default.
- W4311462076 cites W2127083348 @default.
- W4311462076 cites W2129863732 @default.
- W4311462076 cites W2129986055 @default.
- W4311462076 cites W2134950711 @default.
- W4311462076 cites W2136079058 @default.
- W4311462076 cites W2137141094 @default.
- W4311462076 cites W2137777072 @default.
- W4311462076 cites W2154295153 @default.
- W4311462076 cites W2155316682 @default.
- W4311462076 cites W2164910526 @default.
- W4311462076 cites W2170068918 @default.
- W4311462076 cites W2170993352 @default.
- W4311462076 cites W2180414684 @default.
- W4311462076 cites W2283081592 @default.
- W4311462076 cites W2328037678 @default.
- W4311462076 cites W2331361364 @default.
- W4311462076 cites W2331832385 @default.
- W4311462076 cites W2336692996 @default.
- W4311462076 cites W2337753537 @default.
- W4311462076 cites W2340517067 @default.
- W4311462076 cites W2342417423 @default.
- W4311462076 cites W2343292835 @default.
- W4311462076 cites W2403584518 @default.
- W4311462076 cites W2471616303 @default.
- W4311462076 cites W2509808488 @default.
- W4311462076 cites W2521058060 @default.
- W4311462076 cites W2526664058 @default.
- W4311462076 cites W2530991753 @default.
- W4311462076 cites W2531619883 @default.
- W4311462076 cites W2536680102 @default.
- W4311462076 cites W2538249333 @default.
- W4311462076 cites W2551054197 @default.
- W4311462076 cites W2552318266 @default.
- W4311462076 cites W2580608397 @default.
- W4311462076 cites W2601183176 @default.
- W4311462076 cites W2602567820 @default.
- W4311462076 cites W2611225188 @default.
- W4311462076 cites W2625330715 @default.
- W4311462076 cites W2727180601 @default.
- W4311462076 cites W2747424275 @default.
- W4311462076 cites W2765434216 @default.
- W4311462076 cites W2768492360 @default.
- W4311462076 cites W2769523077 @default.
- W4311462076 cites W2775976733 @default.
- W4311462076 cites W2784287724 @default.
- W4311462076 cites W2784589505 @default.
- W4311462076 cites W2788677707 @default.
- W4311462076 cites W2795053319 @default.