What is solidus and liquidus temperature of granite?

In summary, the conversation discussed the melting point of rocks, specifically granite, which does not have a fixed melting point due to its composition of various minerals. The liquidus and solidus temperatures of granite can vary depending on pressure, as seen in the Bowen's Reaction Series and the Tulane article. The discussion also mentioned the different types of granite, such as 'M-type' granite with a mantle source.
  • #1
Atr cheema
69
0
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?
 
Earth sciences news on Phys.org
  • #3
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.
 
  • #4
"Granite" includes a range of "sins," as well; did you have a particular "granite" in mind?
 
  • #5
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.
 
  • #7
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.
 
  • Like
Likes jim mcnamara, Atr cheema and berkeman

1. What is the solidus temperature of granite?

The solidus temperature of granite is the temperature at which the rock begins to melt and turn into a liquid. This temperature can vary depending on the specific composition of the granite, but it is typically between 1215°C and 1260°C.

2. What is the liquidus temperature of granite?

The liquidus temperature of granite is the temperature at which the rock is completely molten and can no longer support any solid material. This temperature also varies depending on the composition of the granite, but it is typically between 1190°C and 1250°C.

3. What factors affect the solidus and liquidus temperatures of granite?

The solidus and liquidus temperatures of granite are primarily influenced by the mineral composition and the amount of water present in the rock. Other factors such as pressure and the rate of cooling can also play a role.

4. How do scientists determine the solidus and liquidus temperatures of granite?

Scientists can determine the solidus and liquidus temperatures of granite through laboratory experiments where they heat and cool samples of the rock under controlled conditions. They can also use advanced techniques such as X-ray diffraction and thermal analysis to analyze the mineral composition and behavior of the rock at different temperatures.

5. Are the solidus and liquidus temperatures of granite the same for all types of granite?

No, the solidus and liquidus temperatures of granite can vary depending on the specific composition of the rock. Different types of granite may have different mineral compositions, which can affect their melting points. Additionally, environmental factors such as pressure and the presence of water can also impact these temperatures.

Similar threads

  • Earth Sciences
Replies
1
Views
1K
Replies
4
Views
1K
Replies
2
Views
1K
Replies
14
Views
4K
Replies
7
Views
755
  • Earth Sciences
Replies
5
Views
4K
  • Other Physics Topics
Replies
9
Views
2K
  • Sci-Fi Writing and World Building
Replies
21
Views
809
  • Science Fiction and Fantasy Media
Replies
14
Views
1K
Back
Top