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Ehagay Nakoda was formerly named Mount Lawrence Grassi, but the name was changed along with renaming Ha Ling Peak.In 1998, the name of the massif was changed to Ehagay Nakoda, meaning "The Last Nakoda" ("The last human being"), which is derived from a Stoney Nakoda origin story about the mountain's creation.
Mountain formation occurs due to a variety of geological processes associated with large-scale movements of the Earth's crust (tectonic plates). [1] Folding , faulting , volcanic activity , igneous intrusion and metamorphism can all be parts of the orogenic process of mountain building. [ 2 ]
Mamelon – Rock formation created by eruption of relatively thick or stiff lava through a narrow vent; Mid-ocean ridge – Basaltic underwater mountain system formed by plate tectonic spreading; Pit crater – Depression formed by a sinking or collapse of the surface lying above a void or empty chamber
Also called Indianite. A mineral from the lime-rich end of the plagioclase group of minerals. Anorthites are usually silicates of calcium and aluminium occurring in some basic igneous rocks, typically those produced by the contact metamorphism of impure calcareous sediments. anticline An arched fold in which the layers usually dip away from the fold axis. Contrast syncline. aphanic Having the ...
A A-grade Also aid climbing grade. The technical difficulty grading system for aid climbing (both for "original" and an adapted version for "new wave"), which goes: A0, A1, A2, A3, A4, A5 and up to A6 (for "new wave"). See C-grade. Abalakov thread Abalakov thread Also V-thread. A type of anchor used in abseiling especially in winter and in ice climbing. ABD Also assisted braking device. A term ...
The Dockyard Shale Formation is an undescribed variegated shale of unknown age that lies buried beneath the Gibraltar's dockyard and coastal protection structures. [ 6 ] Although these geological formations were deposited during the early part of the Jurassic Period some 175–200 million years ago, their current appearance is due to far more ...
Table Mountain is the northernmost end of a 50-kilometre-long (30 mi) and roughly six-to-ten-kilometre-wide (4 to 6 mi) Cape Fold Mountain range that forms the backbone of the Cape Peninsula, stretching from the Cape of Good Hope in the south to Table Mountain and its flanking Devil's Peak (to the east) and Lion's Head and Signal Hill (to the ...
[10] [11] Crater counts suggest that formation of the mountain continued into the last several hundred million years, making this a relatively young geological feature. [ 8 ] Ahuna Mons is associated with a positive mass anomaly, or mascon , centered about 32–36 km (20–22 mi) below it, not far above the crust-mantle boundary.