fractional crystallization उदाहरण वाक्य

उदाहरण वाक्य

1. An example is high-pressure and high-temperature fractional crystallization of granites to produce single-feldspar granite, and low-pressure low-temperature conditions which produce two-feldspar granites.
2. Fractional crystallization in silicate melts ( magmas ) is complex compared to crystallization in chemical systems at constant pressure and composition, because changes in pressure and composition can have dramatic effects on magma evolution.
3. Some granite-composition magmas are eutectic ( or cotectic ) melts, and they may be produced by low to high degrees of partial melting of the crust, as well as by fractional crystallization.
4. For decades, the commercial technology for separating tantalum from niobium involved the fractional crystallization of potassium heptafluorotantalate away from potassium oxypentafluoroniobate monohydrate, a process that was discovered by Jean Charles Galissard de Marignac in 1866.
5. The resulting niobium and tantalum potassium-fluorides ( K 2 [ TaF 7 ], K 2 [ NbOF 5 ] ) could then be separated by fractional crystallization, due to their different water solubilities.
6. High-temperature fractional crystallization of relatively water-poor granite magmas may produce single-alkali-feldspar granite, and lower-temperature crystallization of relatively water-rich magma may produce two-feldspar granite.
7. Care must be taken when handling some of the residues as they contain fractional crystallization of La ( NO 3 ) 3 ?NH 4 NO 3 ?H 2 O, or by ion-exchange techniques when higher purity is desired.
8. Marignac discovered that niobium and tantalum could be separated by fractional crystallization separation of potassium heptafluorotantalate from potassium oxypentafluoroniobate monohydrate, a process which was used commercially until displaced by solvent extraction separation of the same fluorides starting in the 1950s.
9. As magma cools the chemicals in the crystals formed are effectively removed from the main mix of the magma ( by a process known as fractional crystallization ), so the chemical content of the remaining magma evolves as it solidifies slowly.
10. In such occurrences, the granophyre may form as an end product of fractional crystallization of a parent mafic magma, or by melting of rocks into which the mafic magma was emplaced, or by a combination of the two processes.