What is the Protolith of gneiss?
The protolith of gneiss may be an igneous rock, in this case it is called an orthogneiss. It forms probably because of shear in vicous granitic magma. In this sense it is similar to igneous rocks like granite and gabbro and not similar to related metamorphic rocks like schist and phyllite which are foliated.
What is the Protolith for serpentinite?
Protolith was a Proterozoic-Early Paleozoic upper mantle dunite peridotite that has been multiply metamorphosed during the Devonian, Permian, and Mesozoic. Tightly folded serpentinite from the Tux Alps, Austria.
What is the parent of gneiss?
The parent rock of gneiss can be granite, but it can also be shale or an impure sandstone (meaning it contains more than just pure quartz sand).
What is the mother rock of gneiss?
Become a Study.com member to unlock this answer! The parent rock of gneiss can be either granite or schist. Granite is an igneous rock that has cooled from magma.
What is the protolith of phyllite?
The protolith (or parent rock) for phyllite is shale or pelite, or slate, which in turn came from a shale protolith. Its constituent platy minerals are larger than those in slate but are not visible with the naked eye.
Where is serpentinite formed?
Were does serpentinite form? Serpentinite is a metamorphic rock that forms at tectonic plate boundaries deep within the Earth.
What minerals make up serpentinite?
Serpentine rock is primarily composed of one or more of the three magnesium silicate minerals, “lizardite,” “chrysotile,” and “antigorite.” Chrysotile often occurs as fibrous veinlets in serpentine.
What is the protolith of Migmatite?
Other migmatite hypotheses Such granites derived from sedimentary rock protoliths would be termed S-type granite, are typically potassic, sometimes containing leucite, and would be termed adamellite, granite and syenite.