0
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.
What else can I help you with?
Metamorphic rocks with the same mineral assemblages belong to the same?
metamorphic facies. This indicates that these rocks formed under similar pressure and temperature conditions despite coming from different locations.
What type of metamorphic facies associated with the subduction of oceanic crust and sediments forms a very high pressure of moderately low temperature?
The metamorphic facies associated with the subduction of oceanic crust and sediments that forms under very high pressure and moderately low temperature is called the "blueschist facies." This facies typically develops at depths of around 15 to 30 kilometers, where the pressure is significantly high, but the temperatures remain relatively low compared to other metamorphic environments. The presence of minerals such as glaucophane and lawsonite characterizes this facies, indicating the unique conditions of subduction zones.
Which of the following metamorphic facies are characteristic of burial metamorphism?
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.
What is the texture of hornfels?
I too would like an answer to this question as it seems hornfels could be of varying grade dependant on the temperature. The facies of contact metamorphism progress in temperature at relatively low pressure from the Albite-Epidote Hornfels Facies to the Hornblende Hornfels Facies, to the Pyroxene Hornfels Facies. It seems that hornfels do have differant grades.
What is the protolith for greenstone?
The protolith for greenstone is usually basaltic or andesitic volcanic rock that has undergone metamorphism, resulting in the formation of chlorite, epidote, and actinolite minerals that give greenstone its characteristic green color. These rocks are typically found in greenschist facies metamorphic environments.
Which metamorphic facies represents the highest temperature and pressure conditions?
It's eclogite facies.
Which metamorphic facies is associated with subduction zones?
blue schist facies
What is the difference between facies in sedimentary rocks and facies in 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 rocks with the same mineral assemblages belong to the same?
metamorphic facies. This indicates that these rocks formed under similar pressure and temperature conditions despite coming from different locations.
What type of metamorphic facies associated with the subduction of oceanic crust and sediments forms a very high pressure of moderately low temperature?
The metamorphic facies associated with the subduction of oceanic crust and sediments that forms under very high pressure and moderately low temperature is called the "blueschist facies." This facies typically develops at depths of around 15 to 30 kilometers, where the pressure is significantly high, but the temperatures remain relatively low compared to other metamorphic environments. The presence of minerals such as glaucophane and lawsonite characterizes this facies, indicating the unique conditions of subduction zones.
What is the difference between metamorphic grade and metamorphic 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.
Which of the following metamorphic facies are characteristic of burial metamorphism?
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.
The blueschist facies is a metamorphic realm of?
The blueschist facies is a metamorphic realm of low-temperature, high-pressure conditions typically found in subduction zones. It is characterized by the presence of minerals such as glaucophane and lawsonite, and indicates that rocks have undergone metamorphism at depths of 15-30 kilometers. This facies is important for understanding the processes of subduction and the formation of mountain belts.
What has the author Hans-Martin Albat written?
Hans-Martin Albat has written: 'The Proterozoic granulite facies terrane around Kliprand, Namaqualand Metamorphic Complex' -- subject(s): Facies (Geology), Geology, Granulite, Stratigraphic Geology
What is the meaning of facies?
In geology, a facies is a body of rock with specified characteristics.
What is the texture of hornfels?
I too would like an answer to this question as it seems hornfels could be of varying grade dependant on the temperature. The facies of contact metamorphism progress in temperature at relatively low pressure from the Albite-Epidote Hornfels Facies to the Hornblende Hornfels Facies, to the Pyroxene Hornfels Facies. It seems that hornfels do have differant grades.
What is a facies fossil?
Is fossil which is present in more than one facies or environment. Body of rock with features that distinguish it from other bodies of rock
