How Do Heat And Pressure Create Metamorphic Rocks. If there is too much heat or pressure, the rock will melt and become magma. Mr.ceylan results when i looked at the tin foil very closely with the magnifying glass i saw a lot of similar details to it and the samples.
The short answer is tectonics. There are three types of rocks: The “protolith” material, (such as shale, silt, limestone, sandstone) is altered by heat and pressure — the precess of metamorphism.