Continental drift Permian era but failing to account for glaciation in India, Australia and South Africa. Geophysicist Jack Oliver is credited with providing seismologic evidence supporting plate tectonics which encompassed and superseded continental drift with the article "Seismology and the New Global Tectonics", published in 1968, using data collected from seismologic stations, including those he set up in the South Pacific. It is now known that there are two kinds of crust: continental crust and oceanic crust. Continental crust is inherently lighter and its composition is different from oceanic crust, but both kinds reside above a much deeper "plastic" mantle. Oceanic crust
European Association for the Study of the Liver European Association for the Study of the Liver The European Association for the Study of the Liver (EASL) is a European professional association for liver disease. EASL was founded by the German physician Gustav-Adolf Martini in April 1966, in Marburg, Germany, to promote research on the liver and its pathology and to improve therapy for liver disorders. EASL's founding was inspired by the American Association for the Study of Liver Diseases (AASLD, created in November 1949) and the International Association for the Study of the Liver (IASL, created in 1958). EASL is a non-profit organization, composed solely of individual members,