Abstract

Three new methods which are used for demonstrating sedimentary and diagenetic features in evaporite rocks—anhydrite, halite and sylvite—include: (a) the acetate peel technique after etching with NaCl-solution; (b) the scattered-light photomicrograph technique with thin-sections; (c) the epoxy peel technique with imprints of a vapour-etched polished slab. The examples given demonstrate that when combining these methods, it is possible to recognize all kinds of features which result from differences in crystal- and grain-size and in grain-shape, as well as by inclusions of brine or organic matter.

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