What are hotspots?

Seafloor spreading is the mechanism that Wegener was looking for! Convection currents within the mantle drive the continents. Apr 23, 2014 ... Abstract. We review the seafloor spreading record of plate motions adjacent to the Antarctic continent during and after Cretaceous ... Seafloor spreading ... Seafloor spreading, or seafloor spread, is a process that occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic ... Students to use real-world data and the TecRocks Explorer to investigate structures and rock ages on the seafloor. Students connect these data to the theory of ... The Woods Hole Oceanographic Institution is dedicated to advancing knowledge of the ocean and its connection with the Earth system. Nov 13, 2018 ... The Red Sea is an important example of a rifted continental shield proceeding to seafloor spreading. However, whether the crust in the ... ... Sea from the Owen Fracture Zone in the west to ... Early Tertiary seafloor spreading magnetic anomalies and paleo-propagators in the northern Arabian Sea. Hess proposes sea-floor spreading 1960. Photo: Harry Hess argues that the continents had once been one, and have drifted apart. Jan 10, 1981 ... ... seafloor spreading. | OSTI.GOV. ... Sea prior to the establishment of a mid-ocean ridge. It is suggested that the development of a new ocean ... Spreading of the Ocean Floor: New Evidence: Magnetic anomalies may record histories of the ocean basins and Earth's magnetic field for 2 × 108 years. F. J. ...