The process by which chemically different igneous rocks, such as basalt and granite, can form from the same initial magma. Magmatic differentiation can occur by the chemical reaction between the magma and the first crystals to solidify out of it, or by the physical separation of the first crystals that form from the remaining magma, either through settling to the bottom of a magma chamber or through crustal deformations that cause the remaining magma to be squeezed out to cool in veins and dikes.
[mag-muh] /ˈmæg mə/ noun, plural magmas, magmata [mag-muh-tuh] /ˈmæg mə tə/ (Show IPA) 1. Geology. molten material beneath or within the earth’s crust, from which igneous rock is formed. 2. any crude mixture of finely divided mineral or organic matter. 3. Chemistry, Pharmacology. a paste composed of solid and liquid matter. /ˈmæɡmə/ noun (pl) -mas, […]
1. variant of before a vowel: magnanimous.
[mag-nuh] /ˈmæg nə/ noun 1. a town in N Utah. [mahg-nah est we-ri-tahs, et prahy-wah-le-bit; English mag-nuh est ver-i-tas, et pree-vuh lee-bit] /ˈmɑg nɑ ɛst ˈwɛ rɪˌtɑs, ɛt ˌpraɪ wɑˈlɛ bɪt; English ˈmæg nə ɛst ˈvɛr ɪˌtæs, ɛt ˌpri və ˈli bɪt/ Latin. 1. truth is great and will prevail.
[mag-nuh kahr-tuh] /ˈmæg nə ˈkɑr tə/ noun 1. the “great charter” of English liberties, forced from King John by the English barons and sealed at Runnymede, June 15, 1215. 2. any fundamental constitution or law guaranteeing rights and liberties. /ˈmæɡnə ˈkɑːtə/ noun 1. (English history) the charter granted by King John at Runnymede in 1215, […]