Dear Mr. Ekwok,

your question is a bit of a "melange" between common igneous host rocks, e.g., porphyries, uncommon element associations (Cu-U-Au) and Pb-Zn deposits in hydrothermal regions. It is hardly possible to present you a reasonable answer. Split your question and combine it with a well defined target please which you are heading for.

Kind regards

H.G.Dill

Dear Prof Dill,

Thank you for your prompt reaction to my question. There's this understanding that alterations linked to potassium feldspar in volcanic regions are generally associated with shear hosted gold, base metal and massive sulphide deposits. Additionally, it has been reported by Shives et al. (1997) that polymetallic minerals occur in regions where coincident magnetic and potassium intensities are maximum. These info triggered my question. I actually need supporting or opposed journals.

Kind regards.

Dear Mr. Ekwok

as far as the K feldspar is concerned there are many exceptions from the rule because K feldspar is chemically and structurally very divers covering the full range from adularia to sanidine. And I know some volcanic provinces where no gold is associated with a member of this series. In porhyry systems it might work but I would not consider each alteration zone with prevailing K feldspar as fertile for any of the elements above. What is your U mineralization like mineralogically ?

H.G.Dill

Dear Prof. Dill,

thank you once again for making me understand there exist K feldspar in diverse form. By U mineralization, I'm referring to uranium related to magmatic intrusions.

U in magmatic intrusions is one of the most widely discussed topics. You can find several papers of mine uploaded onto the RG server and with digital reprints on request.

H.G.Dill