Sedimentary rocks have layers, not metamorphic rocks.
metamorphic rocks
Foliated rocks are metamorphic rocks that look like they have layers or the appearance of layers. Non-foliated rocks are metamorphic rocks without any foliation.
They form when layers of minerals lay on top of each other
They form when layers of minerals lay on top of each other
Sedimentary rocks have layers, not metamorphic rocks.
metamorphic rocks
Metamorphic rocks have their grains arranged in parallel layers or bands that are said to be foliated.
Foliated rocks are metamorphic rocks that look like they have layers or the appearance of layers. Non-foliated rocks are metamorphic rocks without any foliation.
Pressure through layers of crust
They form when layers of minerals lay on top of each other
Igneous rocks, non-foliated metamorphic rocks, and evaporites do not have layers.
They form when layers of minerals lay on top of each other
They form when layers of minerals lay on top of each other
Foliated rocks have layers in them. We often refer to the layers as Banding.
Sedimentary rocks, and foliated metamorphic rocks form in layers.
Sedimentary rocks form from layers of sand, silt or clay, sometimes mixed with pebbles, and the bodies of living things (that may the be fossilised) The rocks are often quite soft. Metamorphic rocks form when rocks (usually sedimentary rocks) are subjected to extreme heat and/or pressure, usually deep underground. The rocks are changed in form, often becoming harder. Fossils are usually destroyed by the process.