Earth Processes

2. melting - the removal and segregation from a melt of mineral precipitates
6. - hot fluid or semifluid material below or within the earth's crust from which lava and other igneous rock are formed by cooling.
10. -consisting of thin sheets or laminae.
12. -formed by the intrusion.
13. containing a group of dark-colored, mainly ferromagnesian minerals such as pyroxene and olivine.
15. - the continuous physical force exerted on or against an object by something in contact with it.
16. melting - involves the upward movement of the earth's mantle to an area of lower pressure.
18. -Denoting rocks the earth's surface as lava or other volcanic deposits.
19. -a dark gray to black dense to fine-grained igneous rock that consists of basic plagioclase, augite, and usually magnetite.

1. - a hard, unreactive, colorless compound that occurs as the mineral quartz and as a principal constituent of sandstone and other rocks.
3. - It may have any texture from glassy to aphanitic to porphyritic
4. -formed around igneous intrusions where the temperatures are high but the pressures are relatively low and equal in all directions (confining pressure).
5. - the degree or intensity of heat present in a substance
7. -It is this crystalline structure which gives steel and cast iron their magnetic properties and is the classic example of a ferromagnetic material.
8. - a group of light-colored minerals including feldspar, feldspathoids, quartz, and muscovite.
9. vapor - the gaseous phase of water.
11. - the crystals are so fine that individual minerals cannot be distinguished with the naked eye, are extrusive
14. - low precipitation of crystals from a solution of a substance.
17. - extrusive igneous rocks that are usually light to dark gray in color.