Journal ArticleDOI
Neoarchean arc magmatism and Paleoproterozoic high-pressure granulite-facies metamorphism in the southern Motloutse Complex, eastern Botswana: Implications for the western extension of the Limpopo Complex
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In this article , the first record of the occurrence of high-pressure garnet-bearing amphibolite and mafic granulite hosted by amphibolites from the Maope area of the southern Motloutse Complex in eastern Botswana was provided.About:
This article is published in Precambrian Research.The article was published on 2022-02-01. It has received 7 citations till now. The article focuses on the topics: Granulite & Geology.read more
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Petrology and geochronology of sapphirine‐bearing granulites from the Limpopo Complex in eastern Botswana: Implications for Palaeoproterozoic long‐lived high‐pressure/ultrahigh‐temperature metamorphism and rapid exhumation
TL;DR: In this paper , the authors report new petrological, pressure-temperature (P-T), and geochronological data of sapphirine-bearing Mg-Al-rich and pelitic granulites from a metasupracrustal unit (the Beit Bridge Complex [BBC]) in the eastern part of Botswana to constrain its P-T-time evolution.
Journal ArticleDOI
Comment on “Neoarchean arc magmatism and Paleoproterozoic high-pressure granulite-facies metamorphism in the southern Motloutse Complex, eastern Botswana: Implications for the western extension of the Limpopo Complex”
TL;DR: In this article , the thermal regime of the lower crust in the eastern Khondalite Belt using large-scale (∼10,000 km2) Zr-in-rutile mapping was established.
Journal ArticleDOI
Paleoproterozoic (2.01 Ga) high-pressure granulite facies metamorphism and isothermal decompression of garnet–orthopyroxene-cordierite–orthoamphibole gneisses from the Central Zone of the Limpopo Belt in eastern Botswana
TL;DR: In this article , the authors presented petrological and SHRIMP UPb zircon age data for samples of a garnet and orthopyroxene-bearing cordierite-orthoamphibole (Grt-Opx-Crd-Oam) paragneiss and a charnockite from the Baines Drift and the Phikwe Complexes, respectively.
Journal ArticleDOI
Metamorphic evolution and tectonic significance of Neoarchean high-pressure mafic granulites in the Central Limpopo Belt, South Africa
TL;DR: Based on petrology, U-Pb zircon ages, and major and trace element data of high pressure (HP) mafic granulites from the Sand River area, the tectonic evolution of the Central Zone of the Limpopo Belt is re-evaluated here that allows revision of previous interpretations as discussed by the authors .
Journal ArticleDOI
Detrital zircon geochronology of quartzites from the Central Zone of the Limpopo Complex in southern Africa: Implications for different models and the timing of Zimbabwe Craton–Kaapvaal Craton amalgamation
T.O. Basupi,Toshiaki Tsunogae,Kazuki Takahashi,Yusuke Takamura,Prince Mandingaisa,Yukiyasu Tsutsumi +5 more
TL;DR: In this paper , detrital zircon grains from 11 quartzite samples in the Central Zone of the Limpopo Complex, southern Africa, were used to constrain the depositional age and provenance of the protolith quartz-sandstone and evaluate the effect of high-grade metamorphism on Zircon age data in polymetamorphic terranes.
References
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Chemical and isotopic systematics of oceanic basalt : implications for mantle composition and processes
TL;DR: In this article, trace-element data for mid-ocean ridge basalts and ocean island basalts are used to formulate chemical systematics for oceanic basalts, interpreted in terms of partial-melting conditions, variations in residual mineralogy, involvement of subducted sediment, recycling of oceanic lithosphere and processes within the low velocity zone.
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Approximation of terrestrial lead isotope evolution by a two-stage model
J.S. Stacey,Jan Kramers +1 more
TL;DR: In this paper, a two-stage model for terrestrial lead isotope evolution is proposed, which permits the age of the earth to be that of the meteorite system and also yields good model ages for samples of all ages.
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Trace element discrimination diagrams for the tectonic interpretation of granitic rocks
TL;DR: In this article, a data bank containing over 600 high quality trace element analyses of granites from known settings was used to demonstrate using ORG-normalized geochemical patterns and element-SiO2 plots that most of these granite groups exhibit distinctive trace element characteristics.
Journal ArticleDOI
A Guide to the Chemical Classification of the Common Volcanic Rocks
T. N. Irvine,W. R. A. Baragar +1 more
TL;DR: In this paper, a system was presented whereby volcanic rocks may be classified chemically as follows: Subalkaline Rocks:A.B. Tholeiitic basalt series:Tholeitic picrite-basalt; tholeiite, tholeitic andesite; dacite; rhyolite.
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