Igneous and metamorphic cobbles in sub-ice material recovered from a drill core which penetrated the ice sheet at Camp Century, Greenland, provide a rare look at the geology beneath the ice in the interior of Greenland. The sub-ice material can be correlated, based on petrography, with rocks of the Rinkian mobile belt of the west coast of Greenland; however, preliminary strontium isotopic data suggest such correlation should be made with caution. Chemical analyses and rare-earth element data are given to provide the basis for more rigorous correlations as more data become available on the Rinkian rocks.

Cirque-like features, occurring on the western flank of Shawangunk Mountain in south-east New York State, are unique in the area. Though these topographic forms are apparently the product of periglacial and glacial processes, their initiation and subsequent development were dependent to a considerable extent on a specific set of jointing and bedding attitudes and differential lithologies.

A currently active rock glacier with a snout elevation of 4055 m was observed in the Jammu and Kashmir Himalaya. Its formation is ascribed to stagnation of the terminal area of a true glacier.