The multistage tectonic evolution of the northeastern Carajás Province, Amazonian Craton, Brazil: Revealing complex structural patterns

Tavares, Felipe Mattos; Trouw, Rudolph Allard Johannes; Silva, Cíntia Maria Gaia da; Justo, Ana Paula; Oliveira, Junny Kyley Mastop de

doi:10.1016/j.jsames.2018.08.024

Cited by 53 publications

(11 citation statements)

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“…The Buritirama group also includes the poorly understood Tapirapé Formation (Oliveira 1994) that comprehends metabasalts and talc-schist (Fig. 2) (Oliveira 1994) and the Águas Claras Formation (Araújo et al 1988) have been also assumed to be of Paleoproterozoic age (Tavares et al 2018). Anorogenic sienogranites and monzogranites (Serra dos Carajás Suite) dated at 1.88 Ga also belong to this unit (Machado et al 1991, Dall' Agnol et al 2005.…”

Section: Stratigraphy Petrography and Tectonics Of The Manganese-beamentioning

confidence: 99%

Stratigraphy, petrography and tectonics of the manganese-bearing Buritirama Formation, Northern Carajás Domain, Amazon Craton

et al. 2019

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The Buritirama Formation (BF) occurs at the extreme north of the Carajás Province, close to the contact with the Bacajá domain, in the southeastern portion of the Amazon Craton (Brazil). The BF consists of a 40 km long, ca. 3 km wide NW-SE trending structure arranged in four imbricated thrusts that individualize three main stratigraphic units. The lower unit is composed of orthoquartzite followed by carbonate-silicate rocks. The intermediate unit hosts a supergene manganese ore deposit formed by weathering of kutnohorite-rich marble. Quartzite/ mica-quartz schist followed by carbonate-silicate rocks make up the upper unit. The local basement is constituted by orthogneiss-migmatite (Xingu Complex) and the Buritirama metagranite. Mineral chemistry data and metamorphic textures record high consumption of carbonate and quartz to produce clinopyroxenes. The structural assemblage of the BF records mass transport from NE to SW and the following deformational phases: D1 (compressional ductile), D2 (compressional brittle) and D3 (extensional brittle). The BF is interpreted as part of a platformal depositional system positioned at the border of the Carajás domain, which was probably inverted, deformed and metamorphosed during the Transamazonian event (ca. 2.1 Ga), in a deformation belt related to the amalgamation between the Carajás and Bacajá domains.

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Section: Stratigraphy Petrography and Tectonics Of The Manganese-beamentioning

confidence: 99%

Stratigraphy, petrography and tectonics of the manganese-bearing Buritirama Formation, Northern Carajás Domain, Amazon Craton

et al. 2019

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“…The Carajás Domain corresponds to an elongated, E-W oriented, structural domain (Fig. 3; Tavares et al, 2018;Vasquez and Rosa-Costa, 2008). It hosts major ore deposits, including iron oxide-gold-copper deposits (e.g., Grainger et al, 2008;Marschik et al, 2005;Melo et al, 2014;Moreto et al, 2015;Pollard et al, 2019;Requia et al, 2003;Tassinari et al, 2003), Banded Iron Formations (BIFs; Dalstra and Guedes, 2004;Klein and Ladeira, 2002) and Mn ore deposits (Peters et al, 1977).…”

Section: Regional Contextmentioning

confidence: 99%

“…The collision between the Bacajá and the Carajás domains took place during the Rhyacian, at ca. 2.1 Ga (Macambira et al, 2009;Tavares et al, 2018).…”

Section: Regional Contextmentioning

confidence: 99%

“…Different stratigraphic subdivisions have been proposed (e.g., Araujo and Nogueira, 2019;Klein and Ladeira, 2002;Machado et al, 1991;Tavares et al, 2018;Trendall et al, 1998).…”

Section: Stratigraphic Frameworkmentioning

confidence: 99%

“…Despite recent advances documenting the tectonic evolution of the Amazonian Craton (Fig. 1A; Tavares et al, 2018) and the stratigraphy of the Carajás Basin, located to the east of the craton (Fig. 1B; Araújo Filho et al, 2020;Araujo and Nogueira, 2019), the overall Neoarchean to early Paleoproterozoic geodynamic context of the eastern Amazonian Craton remains poorly constrained.…”

Section: Introductionmentioning

confidence: 99%

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Stratigraphy and geochronological constraints of the Serra Sul Formation (Carajás Basin, Amazonian Craton, Brazil)

Rossignol

Rêgo

Narduzzi

et al. 2020

Precambrian Research

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The Santa Lúcia Cu-Au deposit, Carajás Mineral Province, Brazil: a Neoarchean (2.68 Ga) member of the granite-related copper-gold systems of Carajás

et al. 2021

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The Santa Lúcia copper-gold deposit lies in the southeastern portion of the Carajás Mineral Province, along NW-SE splays of the Carajás Fault. The deposit is hosted by a rhyolitic subvolcanic rock, which is crosscut by pegmatite intrusions. The paragenetic evolution at Santa Lúcia encompasses an early stage of chlorite alteration, followed by potassic alteration with microcline, greisenization (quartz-muscovite-tourmaline), copper-gold ore precipitation and late sericite and hematite vein formation/fracture infill.Copper mineralization is dominantly represented by chalcopyrite-sphalerite-pyrrhotitepentlandite-pyrite breccias, which are spatially associated with greisen alteration and characterized by the enrichment of light rare earth elements (LREE), Ni, Co, and Cr. The alteration types, mineralization styles and ore assemblage suggest that the Santa Lúcia deposit could represent a member of the Paleoproterozoic (ca. 1.88 Ga) graniterelated copper-gold systems of Carajás (e.g., the Breves and Estrela deposits). However, the in-situ U-Pb analyses of ore-related monazite yield a weighted average 207 Pb/ 206 Pb age of 2688 ± 27 Ma, thereby constraining the timing of mineralization at Santa Lúcia to the Neoarchean. Moreover, tourmaline from the pegmatite and within the ore zones have a range of δ 11 B values from -3.7 to -0.6‰, therefore linked to a magmatic boron source. Collectively, these results indicate that the Santa Lúcia deposit is the first reduced magmatic-hydrothermal, iron oxide-poor system formed in the Neoarchean, coeval with the 2.72-2.68 Ga metallogenic event responsible for the genesis of important iron oxide copper-gold (IOCG) deposits in the Carajás Mineral Province.

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The multistage tectonic evolution of the northeastern Carajás Province, Amazonian Craton, Brazil: Revealing complex structural patterns

Cited by 53 publications

References 40 publications

Stratigraphy, petrography and tectonics of the manganese-bearing Buritirama Formation, Northern Carajás Domain, Amazon Craton

Stratigraphy, petrography and tectonics of the manganese-bearing Buritirama Formation, Northern Carajás Domain, Amazon Craton

Stratigraphy and geochronological constraints of the Serra Sul Formation (Carajás Basin, Amazonian Craton, Brazil)

The Santa Lúcia Cu-Au deposit, Carajás Mineral Province, Brazil: a Neoarchean (2.68 Ga) member of the granite-related copper-gold systems of Carajás

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