isostasy
41isostatically — adverb see isostasy …
42North Pole — For other uses, see North Pole (disambiguation). Coordinates: 90°N 0°W / 90°N 0°W / 90; 0 …
43Plate tectonics — The tectonic plates of the world were mapped in the second half of the 20th century …
44Mountain — For other uses, see Mountain (disambiguation). Chimborazo …
45Oceanic trench — Oceanic crust is formed at an oceanic ridge, while the lithosphere is subducted back into the asthenosphere at trenches. The oceanic trenches are hemispheric scale long but narrow topographic depressions of the sea floor. They are also the… …
46Seafloor spreading — Age of oceanic crust; youngest (red) is along spreading centers. Seafloor spreading is a process that occurs at mid ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge. Seafloor… …
47Crust (geology) — Geologic provinces of the world (USGS)   Shield …
48Hälsingland — Infobox Landskap fullname=Hälsingland name=Hälsingland land=Norrland county=Gävleborg County Jämtland County Västernorrland County area=14,200 flower=Flax flower swe=Lin flower lat=Linium usitatissimum animal=Lynx bird=Ural owl fish=Ide Audio|sv… …
49History of geodesy — See also the main article on Geodesy. Humanity has always been interested in the Earth. During very early times this interest was limited, naturally, to the immediate vicinity of home and residency, and the fact that we live on a near spherical… …
50Geography of Tibet — This article concerns the geography of Historic Tibet, which includes, but is not the same as the present day Tibet Autonomous Region. For the non political geographical region, see Tibetan Plateau. Yamdrok tso. The geography of Tibet consists of …
