Lithostratigraphic characterization of the Miocene deposits in the Pozo Moro-Pétrola area (Albacete) and their use as a local construction resource
DOI:
https://doi.org/10.55407/geogaceta113673Keywords:
calcarenite, sandstone, quarry, cultural heritage, petrologyAbstract
In the area between Pétrola and Pozo Moro (central-west of the Albacete region) Miocene deposits outcrop formed by successions of calcarenites and sandstones that can reach depths greater than 11m. The detrital fraction is made up of rock fragments, quartz (micro and polycrystalline), chert and gypsum, while in the bioclastic fraction foraminifera (benthic and planktonic), fragments of bivalves, red algae and bryozoans are recognized. Rocks usually present little or moderately developed calcitic cementation, being mostly of the circumgranular type, although in some samples a second poikilotopic or mosaic cementing phase are recognized. These sequences have been historically exploited as building material, at least in three extractive areas located in this study (Pétrola and Pozo Moro surroundings). The objectives of this work focus on the identification of petrological features that allow recognizing the use of these materials in cultural heritage. The main distinctive petrological features focus on the presence/absence of: 1) planktonic foraminifera; 2) rock fragments in the detrital fraction; 3) polycrystalline quartz.
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Copyright (c) 2025 Javier Martínez Martinez, José Francisco Mediato Arribas, Miguel Ángel Rodríguez Pascua, María Ángeles Perucha, Martín Almagro Gorbea
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