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Final Exam

Geochemistry Final Exam
Deadline: October 19, 2011


Briefly answer the following questions:

1.    Derive the formula for calculating age, given the half-life of and amount of parent and daughter isotopes.
2.   Chemically, mineralogically and texturally, distinguish a gneiss formed from the metamorphism of shale from a gneiss formed from a quartz-diorite parent rock.
3.    Explain why underground water in contact with limestone is alkaline.
4.    List the chief products of chemical weathering of a) basalt b) dolomite.
5.    Why are clays a primary hydrothermal alteration material?
Bonus:
1. Draw a snail.
2. Best love team sa ageos, why?

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