medium-grade metamorphism

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• Celsian — is an uncommon feldspar mineral, barium aluminosilicate, BaAl2Si2O8. The mineral occurs in contact metamorphic rocks with significant barium content. Its crystal system is monoclinic, and it is white, yellow, or transparent in appearance. In pure …   Wikipedia

• Valdivia, Chile — Infobox City official name = Valdivia other name = native name = nickname = The City of Rivers motto = Muy Noble y Muy Leal (Very Noble and Very Loyal) imagesize =270px image caption =Typical postcard view of Valdivia from Pedro de Valdivia… …   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

• Asia — /ay zheuh, ay sheuh/, n. a continent bounded by Europe and the Arctic, Pacific, and Indian oceans. 2,896,700,000; ab. 16,000,000 sq. mi. (41,440,000 sq. km). * * * I Largest continent on Earth. It is bounded by the Arctic Ocean, the Pacific Ocean …   Universalium

• Limpopo Belt — The Limpopo Belt is located in South Africa and Zimbabwe, runs E NE, and joins the Kaapvaal craton to the south with the Zimbabwe craton to the north. The belt is of high grade metamorphic rocks that have undergone a long cycle of metamorphism… …   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

• Africa — /af ri keuh/, n. 1. a continent S of Europe and between the Atlantic and Indian oceans. 551,000,000; ab. 11,700,000 sq. mi. (30,303,000 sq. km). adj. 2. African. * * * I Second largest continent on Earth. It is bounded by the Mediterranean Sea,… …   Universalium

• Neu-Schwabenland — DMS …   Deutsch Wikipedia

• Neuschwabenland — Landkarte der Antarktis. Das rot hinterlegte Territorium zeigt die Ausdehnung der von der Deutschen Antarktischen Expedition 1938/39 besuchten Region Antarktikas Neuschwabenland ist eine küstennahe Region in Ostantarktika, die sich von etwa 12°W… …   Deutsch Wikipedia

• Wohltatmassivs — DMS …   Deutsch Wikipedia

• Schist — The schists constitute a group of medium grade metamorphic rocks, chiefly notable for the preponderance of lamellar minerals such as micas, chlorite, talc, hornblende, graphite, and others. Quartz often occurs in drawn out grains to such an… …   Wikipedia