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Pegmatite Peak
Pegmatite Peak () is a summit (topography), peak (790 m) along the west side of Koerwitz Glacier, about midway between the main summits of Medina Peaks and Mount Salisbury (Antarctica), Mount Salisbury, in the Queen Maud Mountains. First mapped by United States Geological Survey (USGS) from surveys and U.S. Navy air photos, 1960–64. So named by New Zealand Geological Survey Antarctic Expedition (NZGSAE), 1969–70, because of the occurrence of large, whitish pegmatite dykes in a rock wall at the southeast spur of the peak. Mountains of the Ross Dependency Amundsen Coast Pegmatite {{Ross-mountain-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Summit (topography)
A summit is a point on a surface that is higher in elevation than all points immediately adjacent to it. The topographic terms acme, apex, peak (mountain peak), and zenith are synonymous. The term (mountain top) is generally used only for a mountain peak that is located at some distance from the nearest point of higher elevation. For example, a big, massive rock next to the main summit of a mountain is not considered a summit. Summits near a higher peak, with some prominence or isolation, but not reaching a certain cutoff value for the quantities, are often considered ''subsummits'' (or ''subpeaks'') of the higher peak, and are considered part of the same mountain. A pyramidal peak is an exaggerated form produced by ice erosion of a mountain top. Summit may also refer to the highest point along a line, trail, or route. The highest summit in the world is Mount Everest with a height of above sea level. The first official ascent was made by Tenzing Norgay and Sir Edmund Hillary ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
