·Contact metamorphism is a rock forming process which occurs when hot magma forces its way into Further Explanation Rocks are aggregates of minerals and majorly of three types Igneous Rocks Sedimentary Rocks Metamorphic Rocks Igneous rocks are created when lava cools down and solidify in rock The metamorphic rocks are made
Which rock is only formed by regional metamorphism A slate B hornfels C dunite D marble Asked in United States Gauth AI Solution Super Gauth AI 100% 3 rated Answer D marble Explanation A Slate and B Hornfels are incorrect because they can be formed by contact metamorphism as well C Dunite is incorrect as it is an ultramafic
·The Types of Metamorphism Burial metamorphism occurs in areas that have not experienced significant deformation or orogeny • Bengal Fan →sedimentary pile > 22 km • Extrapolate →250 300 o C at the base P GPa • Passive margins often become active • Areas of burial metamorphism may thus become areas of orogenic metamorphism 32
There are three basic types of regional metamorphism namely burial ocean ridge and the orogenic regional metamorphism Burial metamorphism Burial metamorphism mostly affects sedimentary strata in sedimentary basins as a result of compaction due to burial of sediments by overlying sediments As temperature increases with depth both p and T
Regional metamorphism relates intrinsically to mobile belts and their history can be unraveled by studying time relationships between burial deformation metamorphism and their association with enhanced thermal input from intrusions and subsequent uplift with erosion Pre syn late and post tectonic phases in the life span of an
·Regional Metamorphism When rocks are buried deep in the crust regional metamorphism occurs This is commonly associated with the boundaries of convergent plate and mountain range formation Because burial is required from 10 km to 20 km the affected areas tend to be large
·Other environments listed such as volcanoes and mid ocean ridges are not primarily associated with regional metamorphism Explanation Understanding Regional Metamorphism Regional metamorphism occurs over large areas of the Earth s crust typically associated with tectonic activity particularly at convergent plate boundaries
Explanation Quartzite is formed from regional metamorphism Helpful Not Helpful Explain Simplify this solution Gauth AI Pro Quartzite is formed from regional metamorphism foliation contact metamorphism weathering 100% 1 rated Quartzite forms when magma presses against preexisting rock Heat and pressure change the rock
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