Alkaline magmatism from the <scp>Lublin–Baltic</scp> area of Poland (<scp>SW</scp> slope of the East European Craton)—Manifestation of hitherto unrecognized early Carboniferous igneous province

Abstract Our study of boreholes, seismic survey and magnetic data from the region between Baltic Basin Lublin indicates existence numerous buried intrusions effusive complexes, most them unnoticed so far, together with a few igneous massifs. They are alkaline character developed in time span c. 348 to 338 Ma. Deep reveal presence large sills (up 100 km long) within crystalline basement overlying sedimentary cover, at depths 7–14 5.5–6.5 km, respectively. All these rocks occur coherent constitute hitherto unrecognized Lublin–Baltic Mississippian Igneous Province (&gt;120,000 2 ). Its denudation is evidenced by volcaniclastic formations high thickness, adjacent basins. activity was triggered thermal anomaly and/or mantle decompression caused stress field reorganization, induced Variscan collision.