FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4324387498> ?p ?o ?g. }

• W4324387498 endingPage "104290" @default.
• W4324387498 startingPage "104290" @default.
• W4324387498 abstract "The iron oxide-copper-gold (IOCG) deposits of the northern portion of the Carajás Province, Amazonian Craton, Brazil, were primarily formed at the 2.5 Ga IOCG event. These deposits commonly exhibit wide Fe–K hydrothermal alteration halos (i.e., almandine-grunerite-biotite-magnetite) and display a temporal and spatial association with the 2.5 Ga granitic bodies, particularly in the GT-46 and in the world-class Salobo deposit. However, this association still lacks investigation concerning the metallogenic influence of the 2.5 Ga granitic bodies in the IOCG formation. Within these deposits, ca. 2.5 hydrothermally altered granites are recognized and include the Old Salobo, at the Salobo deposit, and G1 and G2, at the GT-46 deposit. Whole-rock geochemistry combined with petrography has pointed out that the G1 and Old Salobo are represented by granites to monzogranites, ferroan, metaluminous to weakly peraluminous with negative Eu anomaly. On the contrary, the G2 granite seems to represent a distinct body with granite composition, ferroan, metaluminous to weakly peraluminous with positive Eu anomaly. This granite exhibit pegmatitic textures, high Sr/Y ratios and listric-shaped normalized REE patterns, which suggest crystallization under high water contents. These granites primarily plots in the field of the volcanic arc granites, though some shifts towards to syn-collisional granites are observed. Effects of hydrothermal alteration are commonly seen in these granites both in textural aspects and geochemistry. Apatite mineral chemistry studies shows that magmatic signature in apatite is preserved in the G2 granite (G2core apatite), Old Salobo granite (OSA) and in the GT-46 ore zone (OZGT-A apatite), represented by enrichment in LREE and negative Eu anomaly. Hydrothermally altered apatite is recognized in the Old Salobo (OSB) and G2 granite (G2rim) and in the ore zone of GT-46 deposit and (OZGT-B) with depletion in LREE, which suggest that the same fluid might have affected both deposits. Truly hydrothermal apatite crystals from the Salobo and GT-46 ore zones shows high (Eu/Eu*)N values, indicative of high oxygen fugacity and alkaline fluids. Strong HREE depletion of the apatite grains from the central zone of the deposits suggest coeval almandine crystallization in the Fe–K alteration halos and evolved hydrothermal fluids. These results indicate that magmatic and hydrothermal process coexist in the IOCG deposits from the northern sector of Carajás Province. This might suggest that the 2.5 Ga IOCG deposits from the Carajás Province can have formed during the development of wide magmatic-hydrothermal systems." @default.
• W4324387498 created "2023-03-16" @default.
• W4324387498 creator A5013012743 @default.
• W4324387498 creator A5048797176 @default.
• W4324387498 creator A5057363909 @default.
• W4324387498 creator A5081360192 @default.
• W4324387498 creator A5081415011 @default.
• W4324387498 creator A5084484706 @default.
• W4324387498 date "2023-05-01" @default.
• W4324387498 modified "2023-09-26" @default.
• W4324387498 title "Unravelling magmatic-hydrothermal processes at Salobo and GT-46 IOCG deposits, Carajás mineral province, Brazil: Constraints from whole-rock geochemistry and trace elements in apatite" @default.
• W4324387498 cites W1548574557 @default.
• W4324387498 cites W1611018828 @default.
• W4324387498 cites W1947555207 @default.
• W4324387498 cites W1967794122 @default.
• W4324387498 cites W1973573652 @default.
• W4324387498 cites W1974499954 @default.
• W4324387498 cites W1974893511 @default.
• W4324387498 cites W1976093108 @default.
• W4324387498 cites W1977650828 @default.
• W4324387498 cites W1985431676 @default.
• W4324387498 cites W1986633480 @default.
• W4324387498 cites W1986840991 @default.
• W4324387498 cites W1990672888 @default.
• W4324387498 cites W1991589759 @default.
• W4324387498 cites W1999726370 @default.
• W4324387498 cites W2019034794 @default.
• W4324387498 cites W2020803911 @default.
• W4324387498 cites W2024612050 @default.
• W4324387498 cites W2030694789 @default.
• W4324387498 cites W2035662349 @default.
• W4324387498 cites W2040585423 @default.
• W4324387498 cites W2041644358 @default.
• W4324387498 cites W2044394940 @default.
• W4324387498 cites W2046096314 @default.
• W4324387498 cites W2054767078 @default.
• W4324387498 cites W2056291593 @default.
• W4324387498 cites W2066451952 @default.
• W4324387498 cites W2069499712 @default.
• W4324387498 cites W2070182003 @default.
• W4324387498 cites W2070466214 @default.
• W4324387498 cites W2078305653 @default.
• W4324387498 cites W2079629993 @default.
• W4324387498 cites W2083808432 @default.
• W4324387498 cites W2084165122 @default.
• W4324387498 cites W2088442578 @default.
• W4324387498 cites W2100411277 @default.
• W4324387498 cites W2108971421 @default.
• W4324387498 cites W2118245298 @default.
• W4324387498 cites W2120725265 @default.
• W4324387498 cites W2126236601 @default.
• W4324387498 cites W2127650401 @default.
• W4324387498 cites W2129986055 @default.
• W4324387498 cites W2133978808 @default.
• W4324387498 cites W2138522501 @default.
• W4324387498 cites W2161909354 @default.
• W4324387498 cites W2164468447 @default.
• W4324387498 cites W2164910526 @default.
• W4324387498 cites W2324896590 @default.
• W4324387498 cites W2325961888 @default.
• W4324387498 cites W2331089654 @default.
• W4324387498 cites W2346665872 @default.
• W4324387498 cites W2403584518 @default.
• W4324387498 cites W2404188474 @default.
• W4324387498 cites W2413094107 @default.
• W4324387498 cites W2513036091 @default.
• W4324387498 cites W2565031832 @default.
• W4324387498 cites W2754207321 @default.
• W4324387498 cites W2789323832 @default.
• W4324387498 cites W2792532814 @default.
• W4324387498 cites W2889477299 @default.
• W4324387498 cites W2905242520 @default.
• W4324387498 cites W2911736198 @default.
• W4324387498 cites W2916164628 @default.
• W4324387498 cites W2922213415 @default.
• W4324387498 cites W2949684192 @default.
• W4324387498 cites W2954473671 @default.
• W4324387498 cites W2972488109 @default.
• W4324387498 cites W2974305646 @default.
• W4324387498 cites W2974313484 @default.
• W4324387498 cites W2985262515 @default.
• W4324387498 cites W2999896980 @default.
• W4324387498 cites W3018019776 @default.
• W4324387498 cites W3019590964 @default.
• W4324387498 cites W3030170159 @default.
• W4324387498 cites W3081588706 @default.
• W4324387498 cites W3081718170 @default.
• W4324387498 cites W3082976261 @default.
• W4324387498 cites W3087061052 @default.
• W4324387498 cites W3087117075 @default.
• W4324387498 cites W3110750045 @default.
• W4324387498 cites W3128434536 @default.
• W4324387498 cites W3203689712 @default.
• W4324387498 cites W4243306064 @default.
• W4324387498 doi "https://doi.org/10.1016/j.jsames.2023.104290" @default.
• W4324387498 hasPublicationYear "2023" @default.
• W4324387498 type Work @default.
• W4324387498 citedByCount "0" @default.

• next