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• W3138891736 endingPage "103271" @default.
• W3138891736 startingPage "103271" @default.
• W3138891736 abstract "This paper describes the first investigation of the crystallization parameters of the Mesoarchean granitoids from Ourilândia do Norte, which is located in the midwestern part of the Carajás Province. These rocks are divided into three major groups: (i) sanukitoids composed of amphibole-bearing granitoids and associated intermediate to mafic rocks; (ii) potassic granites composed of biotite monzogranites and associated high-Ti granodiorite; and (iii) subordinated TTG-affinity granitoids (amphibole-bearing trondhjemites and biotite-bearing tonalitic xenoliths). These rocks were formed from different sources at different depths, including enriched mantle (sanukitoids), continental crust (monzogranite), mantle-crust mixture (high-Ti granodiorite) and oceanic crust (TTG-affinity granitoids). Potassic granites and porphyritic sanukitoid facies have high magnetite contents, and consequently high magnetic susceptibility (MS), compared to the equigranular sanukitoid facies and trondhjemite. Thermometers based on apatite saturation in whole-rock indicate liquidus temperatures above 800 °C for all granitoids, reaching 959 °C in the high-Ti granodiorite. Amphibole-based and Si-sensitive geothermometers indicate solidus temperatures from 785 to 738 °C for sanukitoids and 892 to 772 °C for trondhjemite, with estimated emplacement pressures varying from 297 to 80 MPa and 580 to 263 MPa, respectively. Because the potassic granites display an amphibole-free assemblage, no geothermobarometric estimate based on amphibole composition was possible. However, potassic granites are associated with coeval sanukitoids (2.88 Ga), which indicates similar pressure conditions and emplacement depths for these rocks. Crystallization constraints from the Ourilândia sanukitoids are comparable to those of the geochemically similar Rio Maria sanukitoids of the Carajás Province, although the pressure estimates and water content show differences. The Fe/(Fe + Mg) ratios of both biotite and amphibole indicate high to intermediate redox conditions for the sanukitoids and potassic granites, which are mostly above that of nickel-nickel oxide (+1.0 < NNO < + 1.9), although less oxidized conditions are estimated for the trondhjemite (– 0.5 < NNO < + 1.0). High water content was estimated for the sanukitoid-related granitoids (> 5%) relative to the TTG-affinity granitoids (< 4%) using amphibole-based water calibrations. Compared with sanukitoids from other Archean cratons, the Ourilândia sanukitoids crystallization constraints show similarities with the more oxidized members from the Baltic Shield, the Closepet-type granites and the Matok-type sanukitoids but differ from the reduced redox conditions of the Elan-type granitoids from the East Sarmatian orogen." @default.
• W3138891736 created "2021-03-29" @default.
• W3138891736 creator A5062178287 @default.
• W3138891736 creator A5073871968 @default.
• W3138891736 creator A5082152573 @default.
• W3138891736 creator A5091668230 @default.
• W3138891736 date "2021-08-01" @default.
• W3138891736 modified "2023-10-18" @default.
• W3138891736 title "Mineral thermobarometry and its implications for petrological constraints on Mesoarchean granitoids from the Carajás Province, Amazonian Craton (Brazil)" @default.
• W3138891736 cites W1964047299 @default.
• W3138891736 cites W1967794122 @default.
• W3138891736 cites W1968681946 @default.
• W3138891736 cites W1970595625 @default.
• W3138891736 cites W1970623293 @default.
• W3138891736 cites W1972842484 @default.
• W3138891736 cites W1977638370 @default.
• W3138891736 cites W1980000874 @default.
• W3138891736 cites W1980644983 @default.
• W3138891736 cites W1983029922 @default.
• W3138891736 cites W1991589759 @default.
• W3138891736 cites W1995345364 @default.
• W3138891736 cites W2004615814 @default.
• W3138891736 cites W2008442425 @default.
• W3138891736 cites W2009615347 @default.
• W3138891736 cites W2011065740 @default.
• W3138891736 cites W2014333968 @default.
• W3138891736 cites W2014675201 @default.
• W3138891736 cites W2016959530 @default.
• W3138891736 cites W2019877001 @default.
• W3138891736 cites W2020191076 @default.
• W3138891736 cites W2029121355 @default.
• W3138891736 cites W2030694789 @default.
• W3138891736 cites W2031323213 @default.
• W3138891736 cites W2034003688 @default.
• W3138891736 cites W2036723886 @default.
• W3138891736 cites W2040120198 @default.
• W3138891736 cites W2040585423 @default.
• W3138891736 cites W2041943440 @default.
• W3138891736 cites W2042986233 @default.
• W3138891736 cites W2043661460 @default.
• W3138891736 cites W2046441274 @default.
• W3138891736 cites W2046530674 @default.
• W3138891736 cites W2046961523 @default.
• W3138891736 cites W2047151621 @default.
• W3138891736 cites W2048072603 @default.
• W3138891736 cites W2052839279 @default.
• W3138891736 cites W2053721096 @default.
• W3138891736 cites W2062735308 @default.
• W3138891736 cites W2065053849 @default.
• W3138891736 cites W2066451952 @default.
• W3138891736 cites W2068307625 @default.
• W3138891736 cites W2070182003 @default.
• W3138891736 cites W2074118128 @default.
• W3138891736 cites W2074983597 @default.
• W3138891736 cites W2082844473 @default.
• W3138891736 cites W2084830838 @default.
• W3138891736 cites W2088442578 @default.
• W3138891736 cites W2089759123 @default.
• W3138891736 cites W2097477323 @default.
• W3138891736 cites W2100411277 @default.
• W3138891736 cites W2105662998 @default.
• W3138891736 cites W2117491034 @default.
• W3138891736 cites W2129755303 @default.
• W3138891736 cites W2131510962 @default.
• W3138891736 cites W2132389935 @default.
• W3138891736 cites W2134063227 @default.
• W3138891736 cites W2136549236 @default.
• W3138891736 cites W2140134802 @default.
• W3138891736 cites W2147361256 @default.
• W3138891736 cites W2149787537 @default.
• W3138891736 cites W2171353065 @default.
• W3138891736 cites W2279786916 @default.
• W3138891736 cites W2312807377 @default.
• W3138891736 cites W2322815188 @default.
• W3138891736 cites W2330476109 @default.
• W3138891736 cites W2332879341 @default.
• W3138891736 cites W2420947603 @default.
• W3138891736 cites W2518723427 @default.
• W3138891736 cites W2522087807 @default.
• W3138891736 cites W2529192800 @default.
• W3138891736 cites W2573426755 @default.
• W3138891736 cites W2736014581 @default.
• W3138891736 cites W2753062828 @default.
• W3138891736 cites W2761682080 @default.
• W3138891736 cites W2772773048 @default.
• W3138891736 cites W2796309252 @default.
• W3138891736 cites W2809427860 @default.
• W3138891736 cites W2810095624 @default.
• W3138891736 cites W2889477299 @default.
• W3138891736 cites W2912021358 @default.
• W3138891736 cites W2984508352 @default.
• W3138891736 cites W2997342449 @default.
• W3138891736 cites W3014188923 @default.
• W3138891736 cites W3015989017 @default.
• W3138891736 cites W3034734623 @default.
• W3138891736 cites W4240819701 @default.
• W3138891736 cites W4247825675 @default.
• W3138891736 doi "https://doi.org/10.1016/j.jsames.2021.103271" @default.

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