metamorphic rock
A fold
By a process of melting and re-solidification of the melt produced..
melting and crystallization
Melting.
igneous rock
metamorphic rock
by melting them
Melting causes an igneous rock to form into lava/magma.
decompression of rock
Metamorphic rock usually forms when a rock is altered under heat and pressure without melting. Some rocks may be metamorphosed by contact with hot water,
A Syncline is where lays of rock bend downwards and then curve up. An Anticline is the opposite: layers of rock bend upwards and then down.
is a fault...
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.
metamorphic rocks