THIN-SECTION PRODUCTION OF DIAMICTS - PROBLEMS AND SOLUTIONS

Thin-section production of diamict samples presents many problems, pri marily as a result of incomplete impregnation. This problem is investi gated in diamicts of known glacial, glaciomarine, and subaerial origin . The inherent sedimentological characteristics, rather than particula r mode of deposition, appears to influence resin impregnation of diami cts. A technique of surface impregnation is presented to overcome this problem, when samples fail to impregnate fully during initial prepara tion, and is incorporated into current techniques within a flowchart. In the majority of cases, this technique results in successful product ion of a useful thin-section.