sp520-2020-176_si_003.pdf (2.61 MB)

Fig. S1: Rapid changes from arid to humid conditions during the onset of the Paraná-Etendeka Igneous Provinces: can volcanic gas emissions from Continental Flood Basalts affect the precipitation regime?

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journal contribution
posted on 09.07.2021, 15:51 by V.G.P. Cruz, E.F. Lima, L.M.M. Rossetti, N.G. Pasqualon
Massive sandstones: (a) pāhoehoe moulds preserved on the upper surface of a massive sandstone (dashed red); (b) detail of the conformable contact between massive sandstones and the upper vesiculated crust of pāhoehoe flows (dashed white); (c) hand sample from a massive sandstone, notice the incipient lamination in the lower portion (white arrow) and abrupt change between a fine-grained portion and coarse-grained portion (dashed red); (d) mud intraclast (red arrow) preserved in a poorly sorted massive sandstones. Note the angularity and coarse granulometry of some grains. Parallel nichols.


Conselho Nacional de Desenvolvimento Científico e Tecnológico (grants 302125/2016-7 and 402400/2016-0 to EFL), Agência Nacional do Petróleo, Gás Natural e Biocombustíveis (to VGPC), Fundação de Amparo a Pesquisa do Estado do Rio Grande do Sul (grant FAPERGS-PQG05/2019–0001755-3 to EFL)