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erosion and weathering heat and pressure melting and solidification
It depends on the rock. Different minerals have different melting points.
Melting causes an igneous rock to form into lava/magma.
decompression of rock
When the temperature reaches the lowest melting point of the mineral or minerals of which the rock is made.That depends entirely on what type of rock you have, and what it's made up of. Different substances have different melting points. Igneous rock has the highest, which means they don't melt easily. You'd have to know what types of materials are in the rock and look up their respective melting points in a chemistry book, or online. There is no one single answer to your question.
there are several ways such as heat & pressure, melting, chemical weathering, compression, compaction & cementation, but it depends on the kind of rock it is for what process it has to go through. -Cutegirl99
Water reduces the melting point of rock.
The melting of metamorphic or igneous rock forms magma.
Rock metamorphism does not involve melting and cooling from melt. A rock that has melted can only become an igneous rock.
An igneous rock
there are several ways such as heat & pressure, melting, chemical weathering, compression, compaction & cementation, but it depends on the kind of rock it is for what process it has to go through. -Cutegirl99
Melting.