30 September 2015 12 7K Report

- ancient metamorphic and igneous rocks represented by a group of high grade metamorphic rocks, mostly chamokitic granulites of quartz and fieldspar,

- biotite gneisses, coarse grained crystalline rocks derived from granite which may weather to give rather sandy soils.

- Pre- Cambrian granitic and perthitic rocks

- alkaline silicate rocks, carbonatites, rocks rich in sodium and calcium carbonates 

- Quaternary alluvial and lacustrine deposits 

I wouldl like to find out the geologic contribution of heavy metals in the area I am researching in.

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