Joonas Virtasalo

I am a marine geologist, working mainly on the Baltic Sea basin. I use combined allostratigraphy and lithostratigraphy (CUAL approach) for classifying these strata to facilitate correlating seismic profiles with sediment cores. I carry out sedimentologic and ichnologic analyses of X-radiographs, and petrographic and nuclide microanalyses of mud(stone), to gain understanding of macrofaunal and microbial influences on the formation of sediment fine structure and early-diagenetic minerals