Continental drift orogeny at the boundaries of convection cells. By 1967, barely two decades after discovery of the mid-oceanic rifts, and a decade after discovery of the striping, plate tectonics had become axiomatic to modern geophysics. In addition, Marie Tharp, in collaboration with Bruce Heezen, (who initially ridiculed Marie's observations that her maps confirmed continental drift theory), provided essential corroboration, using her skills in cartography and seismographic data, to confirm the theory. Evidence for the movement of continents on tectonic plates is now extensive. Similar plant and animal fossils are found around the shores of different continents, suggesting that they were once
The Association for the Study of Play The Association for the Study of Play The Association for the Study of Play (TASP) is a multidisciplinary organization of scholars and practitioners in the field of play. The Association promotes the study of play, forges alliances with organizations advancing play, organizes yearly meetings to disseminate play research, and publishes a newsletter and monograph series. The Association for the Study of Play emerged from a meeting of scholars of play held in Minneapolis, Minnesota, on April 14, 1973. The meeting was organized and chaired by Alyce Taylor Cheska (1921-2012), who was Head of the Department of Women's Physical Education at