1. Pressure is uneven. How do tremendous pressures and high temperatures affect limestone? What causes shale to change into slate? The limestone turns into marble because of the tremendous pressures and high temperatures. Hornfels, with its alternating bands of dark and light crystals is a good example of how minerals rearrange themselves during metamorphism. In this case, the minerals separated by density and became banded. The term “metamorphism” comes … The effect of temperature on capillary pressure is one of several fascinating problems unearthed by J.R. Philip during his long career. Regional Metamorphism When high temperature and pressure affect large regions of the Earth's crust; causes large-scale metamorphic change, results from building of mountains, happens in low, mid, and high grade. This mineral lining is crucial to the geyser's formation, as geysers operate under tremendous pressure and the plumbing system must be able to contain this pressure for the geyser to function. Many people have marble tile in their homes, but they might not realize that marble was once a different type of rock -- marble formed from the metamorphism of limestone. The Process of Changing a Rock by Extreme Heat & Pressure. This contrasts with the high pressure and temperature conditions required for metamorphism. Gneiss forms by regional metamorphism from both high temperature and pressure. High temperature and moderate to low pressure is needed. What happens to the slate if these conditions increase? How do tremendous pressures and high temperatures affect limestone? Answer the following questions on a separate sheet of paper. 2. On the rock - if it is porous, then it will have a fairly high water content. It partly depends on the rock, the high temperature, and the time duration of the exposure. If continents are moved to high latitudes, more ice sheets form and sea levels fall. Change in the rate of tectonic activity causes changes in the amount of volcanism, and volcanoes influence the climate . Foliated metamorphic rocks are formed within the Earth's interior under extremely high pressures that are unequal, occurring when the pressure is greater in one direction than in the others (directed pressure). The growth of mountain ranges affects atmospheric circulation patterns and the number of alpine glaciers. Heat source: We already know that geysers occur in areas of high geothermal activity, but where does that energy come from? The arrows represent the pressure and temperatures that cause the formation of metamorphic rocks. 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