high pressure but relatively low temperature
A metamorphic grade takes into account only the change in temperature while a metamorphic facies is more specific by showing the change in temperature in relation to the change in pressure and depth. There are three grades: low (250°C-400°C), intermediate (400°C-600°C) and high (above 600°C). Although there are many facies, the major ones are zeolite, hornfels, greenschist, amphibolite, blueschist, eclogite, and granulite. This allows for geologist to easily locate where a metamorphic rock was formed.
A hydrochemical facies in hydrogeology refers to a distinct group of water samples with similar chemical compositions. These facies are used to classify groundwater based on their major ion concentrations, providing insights into the geochemical processes and water-rock interactions occurring in the subsurface. By studying hydrochemical facies, hydrogeologists can better understand groundwater quality, flow patterns, and sources of contamination.
Amphibolite can be found in regions with high-grade metamorphic rocks, typically in mountain belts or areas with tectonic activity. Examples include the Appalachian Mountains in the United States, the Scottish Highlands, the Alps in Europe, and some parts of Japan and New Zealand.
Marble is the metamorphosed result of limestone. Therefore, marble is metamorphic.
yes, slate is metamorphic rock
A blueschist is a variety of metamorphic rock containing glaucophane.
It's eclogite facies.
blue schist facies
A metamorphic grade takes into account only the change in temperature while a metamorphic facies is more specific by showing the change in temperature in relation to the change in pressure and depth. There are three grades: low (250°C-400°C), intermediate (400°C-600°C) and high (above 600°C). Although there are many facies, the major ones are zeolite, hornfels, greenschist, amphibolite, blueschist, eclogite, and granulite. This allows for geologist to easily locate where a metamorphic rock was formed.
Greenschist, blueschist, zeolite, granulite and eclogite high grade metamorphic rocks.
Most regional metamorphic rocks are formed in conditions within this range of geothermal gradients, passing through the greenschist facies to the amphibolites
metamorphic facies. This indicates that these rocks formed under similar pressure and temperature conditions despite coming from different locations.
Depending on the pressure and temperature conditions under which a rock undergoes metamorphism, differing groups of minerals tend to form. These differing groups formed under differing conditions are known as metamorphic facies. For more information, please see the related link.
Blueschist
Zeolite and prehnite-pumpellyite facies are characteristic of burial metamorphism. These facies typically occur at low to medium pressures and temperatures, representing the early stages of metamorphism when sediments are first buried and compacted.
Hans-Martin Albat has written: 'The Proterozoic granulite facies terrane around Kliprand, Namaqualand Metamorphic Complex' -- subject(s): Facies (Geology), Geology, Granulite, Stratigraphic Geology
When basalt undergoes metamorphism, it can change into a metamorphic rock called greenstone. Greenstone is a fine-grained metamorphic rock that forms from the alteration of basalt through metamorphic processes like recrystallization and the growth of new minerals.