- felsic to intermediate volcanic units
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вулканические породы кислого и среднего состава
English-Russian dictionary of geology. 2011.
felsic to intermediate volcanic units
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Slave craton — which is one of the oldest dated rock units on Earth at 4.03 Ga. The crust of the Slave craton is thought to have amalgamated during a 2.69 Ga collision between a proto Slave western basement complex, known as the Central Slave Basement Complex,… … Wikipedia
Superior craton — in the west. The western margin extends from northern Minnesota through eastern Manitoba to northwestern Ontario.The formation of the Superior craton is best explained within the context of 2.72 2.68 Ga accretion of small continental plates and… … Wikipedia
Baltic Shield — The Baltic Shield (sometimes referred to as the Fennoscandian Shield) is located in Fennoscandia (Norway, Sweden and Finland), northwest Russia and under the Baltic Sea. The Baltic Shield is defined as the exposed Precambrian northwest segment of … Wikipedia
Musgrave Block — The Musgrave Block is an east west trending belt of Proterozoic granulite gneiss basement rocks approximately 500km long. The Musgrave Block extends from western South Australia into Western Australia. The Musgrave Block is primarily exposed… … Wikipedia
dating — I In geology and archaeology, the process of determining an object s or event s place within a chronological scheme. Scientists may use either relative dating, in which items are sequenced on the basis of stratigraphic clues (see stratigraphy) or … Universalium
Geology of Mars — Mars Mars as seen by the Hubble Space Telescope Designations … Wikipedia
Temagami greenstone belt — The Temagami greenstone belt is an Archean greenstone belt in Temagami, Ontario, located Unit km|100|0 northeast of Sudbury, Canada. It is characterized by felsic mafic volcanic rocks and averages about Unit km|13|0 wide and Unit km|29|0 long… … Wikipedia
Sturgeon Lake Caldera — Infobox Mountain Name=Sturgeon Lake Caldera Photo= Caption= Elevation= approx. Unit m|455|0 Location=Ontario, Canada Range= Prominence = Coordinates = coord|49|52|13|N|91|00|10|W|type:mountain region:CA Topographic Type=Caldera Volcanic… … Wikipedia
igneous rock — Any of various crystalline or glassy, noncrystalline rocks formed by the cooling and solidification of molten earth material (magma). Igneous rocks comprise one of the three principal classes of rocks, the others being metamorphic and sedimentary … Universalium
Mount Pleasant Caldera — Elevation approx. 248 m (814 ft) Listing List of volcanoes in Canada … Wikipedia
Pilbara craton — The Pilbara craton (the Pilbara province in northwest Western Australia), along with the Kaapvaal craton (the Kaapvaal province of South Africa) are the only remaining areas of pristine Archaean 3.6 2.7 Ga crust on Earth. Similarities of their… … Wikipedia
