metamorphic rock


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metamorphic rock

Sedimentary or igneous rock altered by great heat or pressure, e.g. limestone changed to marble.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.metamorphic rock - rock altered by pressure and heatmetamorphic rock - rock altered by pressure and heat  
amphibolite - a metamorphic rock composed chiefly of amphibole and plagioclase
rock, stone - material consisting of the aggregate of minerals like those making up the Earth's crust; "that mountain is solid rock"; "stone is abundant in New England and there are many quarries"
marlite, marlstone - metamorphic rock with approximately the same composition as marl
hornfels, hornstone - a fine-grained metamorphic rock formed by the action of heat on clay rocks
gneiss - a laminated metamorphic rock similar to granite
schist - any metamorphic rock that can be split into thin layers
References in classic literature ?
The immense areas in some parts of the world, for instance in South America, of bare metamorphic rocks, which must have been heated under great pressure, have always seemed to me to require some special explanation; and we may perhaps believe that we see in these large areas, the many formations long anterior to the silurian epoch in a completely metamorphosed condition.
Soapstone (also known as steatite or soaprock) is a talc-schist, a type of metamorphic rock. According to Wikipedia, the stone is largely composed of the mineral talc and thus is rich in magnesium.
Then read the introduction and review the definition of metamorphic rock. Have students work independently to examine where the three main types of rocks are found in the U.S.
granite-gneiss metamorphic rock, formed by intense heat, has a striped
[UKPRwire, Tue Oct 23 2018] Market Outlook: Introduction Slate is a type of metamorphic rock formed by metamorphism of sedimentary rock that consist of volcanic ashes and clay as key components of this highly useful stone for construction purposes.
Pentelic marble, a metamorphic rock, has been used for sculpture and as a building material.
There's a nice blend of information--descriptions and photos of igneous, sedimentary and metamorphic rock, plus a guide to animal tracks and the dirt on fossils--and display projects such as a shadow box made from a pizza box.
The bright blue of 'Denim' (pictured above), is derived from a crystalline metamorphic rock obtained from only one quarry in the world, in Turkey.
In Figure 5, the western side which trends north-south (letter A) comprises metamorphic rock. According to studies conducted by Oliver et al.
Therefore, the beryl crystals in proximal metamorphic rocks prompted the present study, with emphases on geochemistry, the genetic relationship between the beryl and metamorphic rock, and the mineralogy and geochemistry of beryl crystals that occur in sediments derived from the metamorphic rocks.