Posted by Adam on .
Granite is an intrusive, felsic rock, which may be produced by partial melting or fractional crystallization. Explain how these processes can produce felsic magmas from more mafic parent magmas
2)The age of granite can be determined using radiometric dating. Expalin the basis for the determination of a 238^U-Pb radiometric date of 1120 Ma for a granite.
Please note that we don't do students' homework for them. Our tutors try to give you the information to help you complete your assignment on your own. If there's not a tutor with this specialty online right now, be sure to go back into your textbook or use a good search engine. ( http://www.sou.edu/library/searchtools/ )
Once YOU have come up with attempted answers to YOUR questions, please re-post and let us know what you think. Then someone here will be happy to critique your work.
Sample Locality Age (Million years)
Granite Scottish Highlands
Gabbro Sudburry, Canada