Radiometric Date of Granite

The age of granite can be determined using radiometric dating. Explain the basis for the determination of a 228 U-Pb radiometric date of 1120 Ma for a granite.

Regional Metamorphosis

If you were a geologist, how would you go about studying regional metamorphosis?

Example of wind erosion.

Identify the effects of wind erosion. In what ways is wind erosion a potential problem.

Drawing a section of a cliff that comprises three rock types A, B ,C.

In this question you will be drawing a section of a cliff that comprises three rock types A,B,C. A geologist sees a cliff where rock C forms the lower half of a cliff, and is immediately overlain by a sandstone (rock B) comprising well rounded grains with finely pitted surfaces. the sandstone reaches to the top of the cliff. In this cliff exposure a gabbro (rock A)dyke passes right through both other rock types. draw a section of the cliff and show the relationship between rocks(A,B,C) label and provide a key.

Cliffs Geological History

Give an account of the cliffs geological history based on the cliff diagram and the calculation that the age of rock c is 119,652,608 years old and the fact that rock c is known to be Gneiss.