Sulfidation in Epithermal Deposits

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Questions and Answers

What type of rock are pegmatites?

igneous

What are some rare metals associated with pegmatites?

Li, Be, Nb, Ta, Sn, U

What is the central process of rare earth element (REE) enrichment in pegmatites?

melt fractionation

What is the characteristic size of crystals in pegmatites?

<p>several centimeters to meters</p> Signup and view all the answers

What is liquid immiscibility in the context of magma chambers?

<p>Different liquid phases that do not mix and have distinct chemical compositions and properties.</p> Signup and view all the answers

Give an example of a magmatic segregation deposit and list the elements it contains.

<p>The Bushveld Complex in South Africa, which contains platinum group elements, chromium, and vanadium.</p> Signup and view all the answers

How can magmatic segregation lead to the formation of mineral deposits?

<p>By concentrating certain elements in specific liquid phases and forming different mineral assemblages.</p> Signup and view all the answers

What are the two types of sulfidation deposits based on the amount of sulfide minerals present?

<p>High-sulfidation and low-sulfidation</p> Signup and view all the answers

Where are high-sulfidation deposits typically formed?

<p>In volcanic environments</p> Signup and view all the answers

What metals are commonly found in high-sulfidation deposits?

<p>Gold, silver, copper, zinc, lead, and mercury</p> Signup and view all the answers

In what type of areas are low-sulfidation deposits typically formed?

<p>In areas of less intense volcanic activity, such as in the upper levels of epithermal systems</p> Signup and view all the answers

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