Statherian-Calymmian (ca. 1.6 Ga) magmatism in the Alto Moxotó Terrane, Borborema Province, northeast Brazil: Implications for within-plate and coeval collisional tectonics in West Gondwana

Lages, Geysson de Almeida; Santos, Lauro Cézar Montefalco de Lira; Brasilino, Roberta Galba; Rodrigues, Joseneusa Brilhante; Dantas, Elton Luiz

doi:10.1016/j.jsames.2019.02.003

Cited by 25 publications

(10 citation statements)

References 90 publications

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“…Other old basement rocks include the Late Paleoproterozoic to Mesoproterozoic aged rocks of the metavolcano-sedimentary units (developed in extensional continental rift settings and aged at 1.8 Ga [67]) and the Late Paleoproterozoic and Mesoproterozoic anorogenic magmatism (in the transversal zone, aged ca. 1.7-1.5 Ga, with locally high representation) [68,69].…”

Section: The Borborema Province Panafrican Ne Brazilmentioning

confidence: 99%

New Insights into Pre-to-Post Ediacaran Zircon Fingerprinting of the Mamfe PanAfrican Basement, SW Cameroon: A Possible Link with Rocks in SE Nigeria and the Borborema Province of NE Brazil

et al. 2021

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The pre- to post-Late Neoproterozoic geological histories in the south to southwestern part of Mamfe Basin (SW Cameroon) were reported following analysis of the zircon crystals from their host rocks. A genetic model was developed for the zircon host rocks’ formation conditions, and the registered post-emplacement events were presented. The obtained ages were correlated with the data available for rocks in the Cameroon Mobile Belt, SE Nigeria, and the Borborema Province of NE Brazil. Separated zircons from Araru black to whitish gneiss, Araru whitish-grey gneiss, and Mboifong migmatite were analyzed for their morphology and texture U-Th-Pb composition, and U-Pb ages. Published U-Pb zircon ages for Otu granitic pegmatite, Babi mica schist, and Nkogho I-type anatectic granite were updated. Zircon ages in Araru black to whitish gneiss; Araru whitish-grey, Mboifong migmatite, Babi mica schist, Nkogho I-type anatectic granite, and Otu granitic pegmatite date the Eburnean tectono-magmatic/metamorphic event in Cameroon and SE Nigeria. The Late Paleoproterozoic to Early Mesoproterozoic ages record extensional (continental rift) settings and anorogenic magmatism in the Borborema Province in the NE of Brazil. These ages date collisional phases between the São Francisco–Congo and West African cratons and the Saharan metacraton with metamorphism and magmatism in Cameroon. They also date the Kibarian tectono-magmatic/metamorphism and PanAfrican tectono-magmatic/metamorphism in SE Nigeria. The Late Paleoproterozoic to Early Mesoproterozoic ages date the Cariris Velhos orogeny in the Borborema Province in NE Brazil, with Early Tonian crustal rifting, magmatism, and metamorphism and the collisional phase of the Brasiliano orogeny with syn-collisional plutons and extensive shear zoning and post-collisional granite intrusions.

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Section: The Borborema Province Panafrican Ne Brazilmentioning

confidence: 99%

New Insights into Pre-to-Post Ediacaran Zircon Fingerprinting of the Mamfe PanAfrican Basement, SW Cameroon: A Possible Link with Rocks in SE Nigeria and the Borborema Province of NE Brazil

et al. 2021

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“…The contacts with the host rocks and other petrologic characteristics (within-plate plutonic rocks in geochemical diagrams) make the anorogenic nature very clear. There are several academic works on the theme (e.g., Sá et al 2002, Acciolly et al 2011, Lages et al 2019. It is worth mentioning, however, that not all these occurrences could be properly catalogued and studied, and several others are being gradually discovered and demanding more investigation.…”

Section: Alto Moxotó Tectonostratigraphic Terranementioning

confidence: 99%

“…For the time being, the Rhyacian age for this supergroup seems to be proven (Santos et al 2004, Neves et al 2014). This supergroup is sparsely crosscut by several granitic intrusions (small stocks, branched dikes, tabular bodies) of Paleoproterozoic age and later by Mesoproterozoic magmatism (Lages et al 2019).…”

Section: Sertânia Supergroupmentioning

confidence: 99%

“…1645 Ma), which occur in the Central-Eastern portion of Paraíba State. A recent synthesis on these bodies and discussion of the geotectonic positioning and geochronology is available in the literature (Lages et al 2019).…”

Section: Statherian-calymmian Magmatismmentioning

confidence: 99%

“…Crosscutting the two main geological contexts, a sparse anorogenic magmatism occurred from Statherianto to Calymmian ("A"-type magmatism): monzogranitic metagranitoids informally named as Carnoió, Coloete, and Serra da Barra; and metamorphosed basic rocks and gabbro-anorthosites (Limoeiro, Piranhas), among others. The latter are Fe-Ti-V mineralized (see Lages et al 2019, Accioly 2000.…”

Section: Introductionmentioning

confidence: 99%

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Alto Moxotó Terrane, a fragment of Columbia supercontinent in the Transversal Zone interior: Borborema Province, Northeast Brazil

2020

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In the central part or central subprovince of the Borborema Province, in the so-called Transversal Zone, an assemblage of Paleoproterozoic (predominantly Rhyacian) rocks occurs together with sparsely distributed Neoarchean nuclei. These rocks constitute the main basement of the Tonian (Cariris Velhos Cycle) and Ediacaran (Brasiliano Cycle) mobile belts. They are older tectonostratigraphic terranes and par excellence ramifying elements (as "inliers") of the Neoproterozoic orogenic constructions. This tectonostratigraphic terrane known as Alto Moxotó composes a litho-structural context typical of accretionary orogens, with the presence of granitic, granodioritic, and trondhjemitic orthogneisses (≈ arc-type associations) that stretch out for some hundreds of kilometers (Floresta Suite) and are partially covered by medium-grade pelitic-psammitic sequences (Sertânia Supergroup). This basement outline (Floresta Suite + Sertânia Supergroup) depicts an irregular sigmoidal shape, from the interior of Pernambuco (meridian 39ºW) to the Paraíba coastal area (meridian 34º45'W), along about 450 km, varying from 40 to 80 km in width, resulting in a total area of ca. 28,000 km 2. This Rhyacian petrotectonic scenario is conditioned and delimited by extensive (shear + thrust) faults that configure a tectonostratigraphic terrane. Moreover, there are pieces of continuity evidence of this tectonostratigraphic terrane not only in the basement of the adjacent Neoproterozoic mobile belts to the North and South of the TAM in Brazil, but also in Northern Cameroon, in Africa. Within this broader predominantly Rhyacian belt, some small Neoarchean gneissic and migmatitic nuclei were identified. The Rhyacian lithologies reveal evidence (T DM ages) of sources from a Neoarchean paleosubstrate. During the Statherian, the whole Rhyacian context was affected by a series of small-scale magmatic manifestations of varied petrologic composition: syenitic, granitic, granodioritic, and gabbro-anorthositic. In this paper, a synthesis of the bibliographic data is presented, including a series of unpublished (geologic and geochronologic) data that together validate our conviction that we are dealing with an extensive (reworked) fragment (TAM) derived from the basement of a Paleoproterozoic supercontinent (Columbia).

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How many oceans closed during the Brasiliano Cycle in northeastern Brazil? Implications for the amalgamation of western Gondwana

Neves

2024

Earth-Science Reviews

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Statherian-Calymmian (ca. 1.6 Ga) magmatism in the Alto Moxotó Terrane, Borborema Province, northeast Brazil: Implications for within-plate and coeval collisional tectonics in West Gondwana

Cited by 25 publications

References 90 publications

New Insights into Pre-to-Post Ediacaran Zircon Fingerprinting of the Mamfe PanAfrican Basement, SW Cameroon: A Possible Link with Rocks in SE Nigeria and the Borborema Province of NE Brazil

New Insights into Pre-to-Post Ediacaran Zircon Fingerprinting of the Mamfe PanAfrican Basement, SW Cameroon: A Possible Link with Rocks in SE Nigeria and the Borborema Province of NE Brazil

Alto Moxotó Terrane, a fragment of Columbia supercontinent in the Transversal Zone interior: Borborema Province, Northeast Brazil

How many oceans closed during the Brasiliano Cycle in northeastern Brazil? Implications for the amalgamation of western Gondwana

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Statherian-Calymmian (ca. 1.6 Ga) magmatism in the Alto Moxotó Terrane, Borborema Province, northeast Brazil: Implications for within-plate and coeval collisional tectonics in West Gondwana

Cited by 25 publications

References 90 publications

New Insights into Pre-to-Post Ediacaran Zircon Fingerprinting of the Mamfe PanAfrican Basement, SW Cameroon: A Possible Link with Rocks in SE Nigeria and the Borborema Province of NE Brazil

New Insights into Pre-to-Post Ediacaran Zircon Fingerprinting of the Mamfe PanAfrican Basement, SW Cameroon: A Possible Link with Rocks in SE Nigeria and the Borborema Province of NE Brazil

Alto Moxotó Terrane, a fragment of Columbia supercontinent in the Transversal Zone interior: Borborema Province, Northeast Brazil

How many oceans closed during the Brasiliano Cycle in northeastern Brazil? Implications for the amalgamation of western Gondwana

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Statherian-Calymmian (ca. 1.6 Ga) magmatism in the Alto Moxotó Terrane, Borborema Province, northeast Brazil: Implications for within-plate and coeval collisional tectonics in West Gondwana