Use the terms fluids and gases, parent rock, pressure, foliation, and heat to describe the process of regional metamorphism.
2007-06-21 20:15:16 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Earth Sciences & Geology
Metamorphism is the alteration of a preexisting rock (the parent rock) due to heat and pressure caused by burial in the earth. The parent rock must adapt to the new conditions and it does so by changing mineral composition and texture. These rocks with new texture and composition are metamorphic rocks. Texture and composition are each discussed next. Foliated textures result when the new metamorphic minerals (many of which are platy micas such as biotite and muscovite) line up producing a distinct layering in the rock.
2007-06-22 03:03:32 · answer #1 · answered by Kristenite’s Back! 7 · 1⤊ 0⤋
Do your own homework kid
2007-06-22 03:19:41 · answer #2 · answered by max48750 3 · 0⤊ 0⤋