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    Article

    Two karst events bounding drastic changes in the Neoproterozoic Tandilia Basin history, Argentina: paleogeographic relevance

    The sedimentary infill of the Tandilia Basin is characterised by at least four different stages of deposition during the Neoproterozoic (< 1160 to ~ 550 Ma), two of them recognisable in the Sierras Bayas Group...

    Lucía E. Gómez-Peral, M. Julia Arrouy in International Journal of Earth Sciences (2023)

  2. Article

    Open Access

    Goldilocks at the dawn of complex life: mountains might have damaged Ediacaran–Cambrian ecosystems and prompted an early Cambrian greenhouse world

    We combine U–Pb in-situ carbonate dating, elemental and isotope constraints to calibrate the synergy of integrated mountain-basin evolution in western Gondwana. We show that deposition of the Bambuí Group coin...

    Fabricio Caxito, Cristiano Lana, Robert Frei, Gabriel J. Uhlein in Scientific Reports (2021)

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    Article

    Chemo- and biostratigraphy of the Cretaceous Dalmiapuram Formation, Uttatur Group, Kallakudi II section, Cauvery Basin, South India

    The Cauvery Basin at the southeastern tip of the Indian plate was an Albian to Danian marine embayment. The Dalmiapuram Formation is composed of bioclastic wackestone and coral boundstone. Benthic foraminifera...

    Jayagopal Madhavaraju, Robert W. Scott, Alcides N. Sial in Arabian Journal of Geosciences (2021)

  4. Article

    Correction to: Geochemical and isotope evidence for mantle-derived source rock of high-K calc-alkaline I-type granites, Pernambuco–Alagoas Domain, northeastern Brazil

    Unfortunately, Fig. 14 shows vectors pointing in the wrong direction.

    Thyego R. Silva, Valderez P. Ferreira in International Journal of Earth Sciences (2021)

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    Article

    Paleolimnological reconstruction of a marginal area of Jurassic Capianga Lake, Jatobá Basin, northeast Brazil

    The Aliança Formation, within the Brazilian Recôncavo–Tucano–Jatobá Rift System, is a succession of Late Jurassic sedimentary rocks that record the maximum flooding surface of shallow Capianga Lake in the Afro...

    Juliana Guzmán-González, Alcides N. Sial in Journal of Paleolimnology (2020)

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    Article

    Geochemical and isotope evidence for mantle-derived source rock of high-K calc-alkaline I-type granites, Pernambuco–Alagoas Domain, northeastern Brazil

    We report whole-rock major, trace, mineral, and isotope chemistries of the Jacaré dos Homens, and Santo Antonio granitic rocks from the Águas Belas–Canindé batholith, Pernambuco–Alagoas Domain of the Borborema...

    Thyego R. Silva, Valderez P. Ferreira in International Journal of Earth Sciences (2019)

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    Article

    Carbon, oxygen and strontium isotopic signatures in Maastrichtian-Danian limestones of the Cauvery Basin, South India

    A petrographic, carbon, oxygen and strontium study of the carbonate succession of the shallow marine Kallankurichchi and Niniyur formations of the Cauvery Basin, Tamil Nadu, India was conducted to understand t...

    Jayagopal Madhavaraju, Alcides N. Sial, Reghunathan Rakhinath in Geosciences Journal (2015)

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    Article

    Carbon and oxygen isotopic variations in stromatolitic dolomites of Palaeoproterozoic Vempalle Formation, Cuddapah Basin, India

    The marine stromatolitic dolomites of Palaeoproterozoic Vempalle Formation, of Cuddapah Basin, South India show significantly depleted δ18O (−8.19 to −18.25‰) and δ13C (−0.03 to −5.74) values and are consistent w...

    Gopal Chakrabarti, Debasish Shome, Subhasish Kumar in Carbonates and Evaporites (2011)

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    Article

    Petrography and stable isotope geochemistry of the cretaceous El Abra Limestones (Actopan), Mexico: Implication on diagenesis

    Petrography and stable isotopes (carbon and oxygen) geochemistry of limestones from the El Abra Formation, Actopan, were studied to identify their digenetic environments. The major petrographic types identifie...

    John S. Armstrong-Altrin, J. Madhavaraju in Journal of the Geological Society of India (2011)

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    Article

    Origin of granite at Cabo de Santo Agostinho, Northeast Brazil

    A 4 km2 exposure of shallowly-emplaced leucogranite on the Atlantic coast at Cabo de Santo Agostinho, 30 km south of Recife, Brazil has been extensively studied chemically and isotopically. Twenty-three major-ele...

    Leon E. Long, Alcides N. Sial, Hanna Nekvasil in Contributions to Mineralogy and Petrology (1986)