1 After your inspection, you can purchase a treatment plan, in which a company will come out once a year and either do preventative treatments or check/replace monitoring bait stations. 2  The cost for this varies, but could be anywhere from $150 to $300.
Metamorphic Rocks. Any rock (igneous, sedimentary, or metamorphic) can become a metamorphic rock. If rocks are buried deep in the Earth at high temperatures and pressures, they form new minerals and textures all without melting.If melting occurs, magma is formed, starting the rock cycle all over again. the temperature and pressure conditions (metamorphic environment) in which the rock was formed. 2  the composition of the parent, or original unmetamorphosed, rock. 3  aids in the interpretation of the platetectonic setting in which the metamorphism took place. 4  aids in the reconstruction of the geological history of an area.
Metamorphic rocks are formed by the alteration of pre-existing rocks from exposure to heat and pressure while remaining in a solid form. Metamorphism occurs by breaking bonds between atoms in a mineral so that the atoms rearrange themselves into new, more stable, mineral forms.here the pressure is not directed, nonfoliated metamorphic rocks are formed and lack the banding of minerals typical of foliated rocks. Figure 14.20 Quartzite is a nonfoliated metamorphic rock formed from sandstone, a sedimentary rock. Table 14.2 Common Metamorphic Rocks. Rock.