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· explore the process of metamorphism and discover how metamorphic rocks are formed through … Explore the hidden wonders beneath the earths surface in this intriguing read. The original rock (protolith) is subjected to temperatures greater than 150 to 200 °c (300 to 400 °f) and, often, elevated pressure of 100 megapascals (1,000 bar) or more, causing profound physical or chemical changes. During this process, the rock remains mostly in the solid state, but … · discover the astonishing characteristics and formation process of metamorphic rock through these 18 … · while sedimentary rock is formed from sediments, and igneous rock is formed from molten magma, metamorphic rock is rock made from pre-existing rocks. Delve into the characteristics of metamorphic rocks, including the occurrence of holes and what they reveal about rock formation. 5 shocking secrets of rocks under pressure discover five shocking secrets of metamorphic rocks and how intense pressure transforms them. Differential stress, where pressure is greater in one direction, can lead to the formation of elongated or flattened mineral grains in metamorphic rocks. · gneiss, another common metamorphic rock, forms at high temperatures and pressures and exhibits a distinct banding of light and dark minerals. Metamorphic rocks arise from the transformation of existing rock to new types of rock in a process called metamorphism. · facts about metamorphic rocks:
