- metamorphic grade
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степень метаморфизма
English-Russian dictionary of geology. 2011.
metamorphic grade
Смотреть что такое "metamorphic grade" в других словарях:
Metamorphic facies — Eclogite Blueschist Greenschist Prehnite Pumpellyite … Wikipedia
Metamorphic zone — Schematic map of a terrane with an increasing metamorphic grade. There are two folded lithologies: quartzite (originally sandy sediment) and pelite (originally clayy sediment). The index minerals can only grow in the pelite. The highest indicated … Wikipedia
Metamorphic core complex — Metamorphic core complexes are exposures of deep crust exhumed in association with largely amagmatic extension. They form, and are exhumed, through relatively fast transport of middle and lower continental crust to the Earth s surface. During… … Wikipedia
metamorphic rock — Any of a class of rocks that result from the alteration of preexisting rocks in response to changing geological conditions, including variations in temperature, pressure, and mechanical stress. The preexisting rocks may be igneous, sedimentary,… … Universalium
Massif Central (geology) — The Massif Central forms together with the Armorican Massif (Brittany and Normandy) one of the two big basement massifs in France. Its geological evolution started in the late Neoproterozoic and continues to this day. It has been shaped mainly by … Wikipedia
Metamorphism — For other uses, see Metamorphism (disambiguation). Schematic representation of a metamorphic reaction. Abbreviations of minerals: act = actinolite; chl = chlorite; ep = epidote; gt = garnet; hbl = hornblende; plag = plagioclase. Two minerals… … Wikipedia
Isograd — In geology, an isograd is a line in the field of constant metamorphic grade; it also separates zones of different metamorphic grades. On geologic maps focusing on metamorphic terrains (or landscapes underlain by metamorphic rocks), the boundaries … Wikipedia
Moldanubian Zone — Most important structures and zones of the Variscan or Hercynian Orogeny in Europe.[1] The Moldanubian Zone is in the regional geology of Europe a tectonic zone formed during the Variscan or Hercynian Orogeny (400 to 300 million ye … Wikipedia
Yilgarn Craton — The Yilgarn Craton is a large craton which constitutes the bulk of the Western Australian land mass. It is bounded by a mixture of sedimentary basins and Proterozoic fold and thrust belts. Zircon grains in the Jack Hills, Narryer Gneiss Terrane… … Wikipedia
Litchfieldite — is a rare metamorphosed igneous rock. It is a variety of nepheline syenite and is composed of two near pure phases of feldspar, albite and microcline, with predominance of the first one, plus nepheline, sodalite, cancrinite and calcite. The mafic … Wikipedia
Geology of Nepal — The Himalayan arc extends about 2400 km from Nanga Parbat (8,138 m) in the west to Namche Barwa (7,756 m) in the east (Le Fort, 1996). This region includes Nepal, Bhutan, as well as parts of Pakistan, India, and China. Since 55 Ma, the Himalayan… … Wikipedia
