Subglacialkalksten contra hällkonkretioner uppkomna efter isavsmältningen

Abstract

The term “subglacial limestone”, as originally defined by the present author (1964), should be applied only to such limestone deposits whose characteristics and mode of occurrence point towards an undoubtedly subglacial origin. On the contrary, other types of thin limestone deposits, which often form small hemispherical bodies on the bedrock surface and which are not of a subglacial origin, should not be so named, nor confused with subglacial limestone which is a quite different type of deposits (cp. Kers 1964, Figs. 3, 4). A minor occurrence of limestone in central Sweden, recently treated as subglacial limestone by Åhman (1971), is evidently an example of the above mentioned type of postglacial concretions and not a subglacial limestone. —A new find of subglacial limestone is reported by the author from Galdhöpiggen, Norway.