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 arise from the transformation of existing rock types, in a process called metamorphism, which means change in form. The original rock (protolith) is subjected to heat (temperatures greater than 150 to 200 Â°C) and pressure (150 megapascals (1,500 bar)), causing profound physical and/or chemical change. The protolith may be a sedimentary, an igneous, or even an existing type of metamorphic rock. Metamorphic rocks make up a large part of the Earth's crust and form 12% of the Earth's current land surface. They are classified by texture and by chemical and mineral assemblage (metamorphic facies).