seafloor spreading
81Ocean observations — The following are considered essential ocean climate variables by the OOPC[1][clarification needed] that are currently feasible with current observational systems. Contents 1 Ocean climate variables 1 …
82Convergent boundary — In plate tectonics, a convergent boundary, also known as a destructive plate boundary (because of subduction), is an actively deforming region where two (or more) tectonic plates or fragments of lithosphere move toward one another and collide. As …
83Nazca Plate —   The Nazca plate, shown in light blue Full size image showing all plates The Nazca Plat …
84Alfred Wegener — Infobox Scientist name = Alfred Wegener box width = image size =180px caption = Alfred Wegener, around 1925 birth date = November 1, 1880 birth place = Berlin death date = November 2, 1930 death place = Greenland residence = citizenship =… …
85Large igneous province — Only a few of the largest Large Igneous Provinces are indicated (by the dark purple areas) on this geological map, which depicts crustal geologic provinces as seen in seismic refraction data. A Large Igneous Province (LIP) is an extremely large… …
86Marine geology — Oceanic crust is formed at an oceanic ridge, while the lithosphere is subducted back into the asthenosphere at trenches. Marine geology or geological oceanography involves geophysical, geochemical, sedimentological and paleontological… …
87Passive margin — A passive margin is the transition between oceanic and continental crust which is not an active plate margin. It is constructed by sedimentation above an ancient rift, now marked by transitional crust. Continental rifting creates new ocean basins …
88Morley-Vine-Matthews hypothesis — The Morley Vine Matthews hypothesis , also known as the Vine Matthews Morley hypothesis was the first key scientific test of the seafloor spreading theory of continental drift. Geophysicists Frederick John Vine and Lawrence W. Morley… …
89Tiefseekuppe — Historische Echolot Aufzeichnung des ersten von Harry Hess entdeckten Guyots, vermutlich in der Nähe des Eniwetok Atolls Ein Guyot (auch Tiefseekuppe) ist ein an der Spitze abgeflachter Seamount, also der Kegel eines erloschenen untermeerischen… …
90Pangea — [pan jē′ə] 〚coined (1912) by A. L. Wegener (1880 1930), Ger geologist: < Gr pan, all + gē, the earth〛 the large landmass that nearly extended from pole to pole on one side of the earth during the late Paleozoic and early Mesozoic eras: it… …
