Carbonate rocks.

Abstract

12 limestones and dolomites from the Conasuaga Formation were analysed to determine whether burial metamorphism had the same effect on silicate minerals in carbonate rocks as in adjacent physilites. Acid insoluble residues had a similar mineralogy to the physilites and in general show similar mineralogical changes and K-Ar apparent ages. The acid soluble portions show a great range in K-Ar apparent ages. The results are discussed. -M.J.Bennell-Baker.