[ măg-măt′ĭk ]
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.
Learn The Strange Link Between The Letters C And GCan you imagine a world in which the sounds of G and C were both represented by the letter C? Try to imacine it. Believe it or not, for much of their history, the sounds of C and G were represented by the same symbol. Eventually, however, both sounds received their own differentiated symbols. Both G and C have their origin in the Phoenician letter gimel, …
Fiancé vs. FiancéeMuch debate and change surrounds the terms fiancé and fiancée in the recent past. English speakers borrowed these gendered terms from the French in the mid-19th century, importing both the masculine (fiancé) and feminine (fiancée). This term ultimately derives from Latin, fidare literally meaning “to trust,” combined with the suffix -ance, which is used to form nouns from existing verbs. But which form should you …
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