Petrography, electron paramagnetic resonance, geochemistry, and Sr-C-O isotope data for provenance studies of the ancient Marmor Iassense in Kıyıkışlacık (Muğla region), Türkiye

During the Roman and Byzantine periods, they were preferred as decorative stones for many important buildings in İstanbul, such as the Hagia Sophia, Chora Monastery (Kariye Mosque), and Church of the Holy Apostles, as well as San Vitale in Ravenna and other buildings throughout the Mediterranean region.

They were used in wall coverings, flooring, columns, and mosaics. These marbles contain red and gray-white alternating folded layers of different thicknesses. They consist of calcite, quartz, feldspar (albite ± orthoclase), chlorite, muscovite, graphite, and hematite minerals and are fine- to medium-grained (maximum grain size: 0.2–2 mm).