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Basalt is a common extrusive igneous (volcanic) rock formed from the rapid cooling of basaltic .... On Earth, most basalt magmas have formed by decompression melting of the mantle. Basalt commonly erupts on Io, the third largest moon of ...


Basaltic magmas that form the oceanic crust of the Earth are generated in the asthenosphere at a depth of about 70 kilometres. The mantle rocks located at ...


Sep 14, 2015 ... The most common method of making basaltic magma is by decreasing the pressure of the mantle rocks. Mantle rocks are extremely hot, and ...


Jan 31, 2013 ... of volcanic eruptions? There are three common types of magma: BASALTIC. ANDESITIC. RHYOLITIC. Basaltic lava flows easily because of its.


Sep 14, 2015 ... Thus, basaltic magmas tend to be fairly fluid (low viscosity), but their viscosity is still 10,000 to 100,0000 times more viscous than water.


Apr 12, 2004 ... Basalt is by far the most common volcanic rock type. Basaltic magma is formed by partial melting of material from the upper mantle, and and is ...


Basaltic magmas are formed by partial melting of a source rock of peridotitic composition (pyrolite) under upper mantle conditions. Experimental studies of the  ...


Download a PDF of "Generation of Basaltic Magma" by the National Research Council for free. Description:


Noun. (plural basaltic magmas). Fluid rock material of basaltic origin. English Wiktionary. Available under CC-BY-SA license.


Mar 28, 2005 ... Two principal types of basalt in the ocean basins. Table 10-1. Common petrographic differences between tholeiitic and alkaline basalts.