What is solidus and liquidus temperature of granite?

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SUMMARY

The solidus and liquidus temperatures of granite are not fixed due to its mineral composition, but rather exist within a range influenced by pressure. Specifically, for 'M-type' granite, the solidus temperature occurs when the last quartz crystallizes, while the liquidus temperature is reached when the last plagioclase or mafic mineral melts. The role of pressure in these processes is acknowledged in Bowen's Reaction Series and is further discussed in the Tulane University article on igneous rocks.

PREREQUISITES
  • Understanding of Bowen's Reaction Series
  • Knowledge of granite mineral composition
  • Familiarity with the concepts of solidus and liquidus temperatures
  • Basic geology, particularly regarding magma formation
NEXT STEPS
  • Research the specific solidus and liquidus temperatures for 'M-type' granite under varying pressure conditions
  • Study the implications of pressure on melting points in igneous rocks
  • Examine the mineral composition of different granite types and their melting behaviors
  • Explore the Tulane University article on igneous rocks for detailed insights on magma and crystallization
USEFUL FOR

Geologists, petrologists, and students studying igneous rock formation, particularly those interested in the melting behavior of granite under varying pressure conditions.

Atr cheema
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My understanding is that because a rock is composed of variety of minerals, so it does not have fix melting point, rather there is a range below which whole rock is solid and above which whole rock is liquid. I want to know this liquidus and solidus temperature for granite rock based on pressure (as we can't ignore role of pressure inside Earth where granite is formed?
 
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Bystander said:
I looked at number of sites (including wikipedia) before posting this question but could not find a relation for solidus/liquidus temperature of granite as a function of pressure.
 
"Granite" includes a range of "sins," as well; did you have a particular "granite" in mind?
 
Bystander said:
"Granite" includes a range of "sins," as well; did you have a particular "granite" in mind?
I am considering 'M-type' granite, as the granite under observation is supposed to have mantle source.
 
http://www.tulane.edu/~sanelson/eens1110/igneous.htm
Magma and Igneous Rocks

Basically, using Bowen's Reaction Series as a template, the solidus for a granite is when the last quartz ( or whatever is left in the melt) has crystallized. The liquidus is reached when the last plagioclase of mafic mineral has melted. The role of pressure on melting is touched on about quarter of the way down in the Tulane article.
 
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