Sediment-derived melt-related metasomatized mantle wedge as a source of post-subduction Quaternary adakitic porphyries associated with absarokite-shoshonite from the Karadağ stratovolcano (Karaman, Central Anatolia, Turkey)

[Display omitted] •The association between adakitic and absarokitic rocks is recognized first time from Karadağ stratovolcano, Central Anatolia.•Data revealed a mantle origin metasomatized by continent-derived sediments.•Karadağ stratovolcano formed in transtensional phase of post-subduction intracontinental setting.•The data argue against the evidence for the presence of latest Cenozoic arc setting. The Karadağ stratovolcano (KS), located at the southern end of the Cappadocian Volcanic Province in Central Anatolia, Turkey, is a key volcanic vent for understanding the spatiotemporal association between adakitic and mafic potassic (absarokitic-shoshonitic-banakitic) magmas in a post-subduction intracontinental setting. Here, we present a comprehensive geochemical dataset consisting of mineral chemistry, major and trace elements, Sr–Nd–Pb isotopes and conventional K-Ar age data for the adakitic andesite-dacite series of the KS. KS was built up by the eruption of adakitic andesites (825 ± 17 ka), absarokite-shoshonites (393 ± 153 ka), adakitic dacites (45 ± 6 ka) and effusive deposits (