Abstract
The Montalto Formation consists of a succession of slate, greywacke, quartzites, and polygenic conglomerates cropping out in the Dúrico-Beirã area of northern Portugal. The formation is of interest because it contains mixed volcaniclastic sequences that record changes in marginal-marine depositional environments and because it is associated with regional tectonic and magmatic processes. The Montalto Formation can be divided into three lithological associations that record a shallowing-upward sequence.
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Couto, H., Knight, J. (2014). The Montalto Formation: A Pre- to Basal Ordovician Succession in the Dúrico-Beirã Area (Northern Portugal). In: Rocha, R., Pais, J., Kullberg, J., Finney, S. (eds) STRATI 2013. Springer Geology. Springer, Cham. https://doi.org/10.1007/978-3-319-04364-7_74
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