Tennaya Glacier

	Tennaya Glacier Tennaya Glacier is one of several glaciers draining the eastern side of the Mount Edziza ice cap in northwestern British Columbia, Canada. It is located southeast of the summit of Mount Edziza and northwest of Ice Peak at the head of Tennaya Creek. Meltwater from Tennaya Glacier feeds Tennaya Creek which eventually flows into Nuttlude Lake, an expansion of Kakiddi Creek. The name of the glacier was suggested by the Geological Survey of Canada on November 15, 1979, and eventually became official on November 24, 1980. ''Tennaya'' is derived from the Tahltan words ''ten'' and ''naya'', which mean ''ice'' and ''be come down'' respectively. The name of this glacier is a reference to a spectacular icefall at the head of Tennaya valley. Geology At the head of Tennaya Glacier are rocks assigned to the upper assemblage of the Ice Peak Formation. They consist of trachyte, benmoreite, mugearite, tristanite, trachybasalt and alkali basalt that are in the form of lava flows, lava dom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Mountain Glacier A glacier (; ) is a persistent body of dense ice that is constantly moving under its own weight. A glacier forms where the accumulation of snow exceeds its ablation over many years, often centuries. It acquires distinguishing features, such as crevasses and seracs, as it slowly flows and deforms under stresses induced by its weight. As it moves, it abrades rock and debris from its substrate to create landforms such as cirques, moraines, or fjords. Although a glacier may flow into a body of water, it forms only on land and is distinct from the much thinner sea ice and lake ice that form on the surface of bodies of water. On Earth, 99% of glacial ice is contained within vast ice sheets (also known as "continental glaciers") in the polar regions, but glaciers may be found in mountain ranges on every continent other than the Australian mainland, including Oceania's high-latitude oceanic island countries such as New Zealand. Between latitudes 35°N and 35°S, glaciers occur only in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Trachybasalt Trachybasalt is a volcanic rock with a composition between trachyte and basalt. It resembles basalt but has a high content of alkali metal oxides. Minerals in trachybasalt include alkali feldspar, calcic plagioclase, olivine, clinopyroxene and likely very small amounts of leucite or analcime. Description An aphanitic (fine-grained) igneous rock is classified as trachybasalt when it has a silica content of about 49% and a total alkali metal oxide content of about 6%. This places trachybasalt in the S1 field of the TAS classification, TAS diagram. Trachybasalt is further divided into sodium-rich ''hawaiite'' and potassium-rich ''potassic trachybasalt'', with wt% > + 2 for hawaiite. The intrusive equivalent of trachybasalt is monzonite. Trachybasalt is not defined on the QAPF diagram, which classifies crystalline igneous rock by its relative content of feldspars and quartz. However, the U.S. Geological Survey defines trachybasalt as a mafic volcanic rock (composed of over 35% maf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Idiji Glacier Idiji Glacier is one of several glaciers draining the eastern side of the Mount Edziza ice cap in northwestern British Columbia, Canada. It is located south of the summit of Mount Edziza in a cirque just southeast of Ice Peak. Idiji Glacier is separated from the much larger Tencho Glacier by a ridge that extends south of Ice Peak above the Idiji cirque headwall. Idiji Glacier is the namesake of Idiji Ridge which is just to the southeast. The name of the glacier was suggested by the Geological Survey of Canada on November 15, 1979, and eventually became official on November 24, 1980. ''Idiji'' means "it thunders" in the Tahltan language, which refers to the loud noises stemming from this very active glacier. At the head of Idiji Glacier are rocks assigned to the upper assemblage of the Ice Peak Formation. They consist of trachyte, benmoreite, mugearite, tristanite, trachybasalt and alkali basalt that are in the form of lava flows, lava domes and pyroclastic breccia. B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	List Of Glaciers In Canada This is a list of glaciers in Canada. List of glaciers Saint Elias Mountains * Donjek Glacier Hubbard Glacier Logan Glacier Coast Mountains Boundary Ranges Juneau Icefield Llewellyn Glacier Hang Ten Icefield Stikine Icecap Great Glacier Andrei Icefield Andrei Glacier Choquette Glacier Hoodoo Glacier Johnson Glacier Porcupine Glacier Twin Glacier Salmon Glacier Cambria Icefield Pacific Ranges Monarch Icefield Ha-Iltzuk Icefield Klinaklini Glacier Silverthrone Glacier * Waddington Massif-Pantheon Range-Whitemantle Range Waddington Glacier Tiedemann Glacier Scimitar Glacier Parallel Glacier Franklin Glacier Bell Glacier (Canada) Cannonade Glacier Remote Glacier Shadow Glacier Fan Glacier Geddes Glacier Chaos Glacier Radiant Glacier Cataract Glacier Isolation Glacier Shiverick Glacier Malemute Glacier Sunrise Glacier Tellot Glacier Smoking Cannon Glacier Jambeau Glacier Chanterelle G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Big Raven Formation The Big Raven Formation is a stratigraphic unit of Quaternary age in northwestern British Columbia, Canada. It is the youngest and least voluminous geological formation of the Mount Edziza volcanic complex (MEVC); it overlies at least six older formations of this volcanic complex. The main volcanic rocks of the Big Raven Formation are alkali basalts and hawaiites, although a small volume of trachyte comprises the Sheep Track Member. These rocks were deposited by volcanic eruptions in the last 20,000 years during the Volcanism of the Mount Edziza volcanic complex#Fifth magmatic cycle, latest magmatic cycle of the MEVC. Alkali basalt and hawaiite are in the form of lava flows and small volcanic cones while trachyte of the Sheep Track Member is mainly in the form of volcanic ejecta which covers an area of about . The Big Raven Formation is widespread throughout the MEVC, occurring on or adjacent to the Arctic Lake Plateau, Arctic Lake, Big Raven Plateau, Big Raven and Kitsu Plateau, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]