Abstract
Recent results of the studies on the Stratigraphy and Geochronology of the Pre-Cambrian complex in the Baltic shield are summarized. The tripartation of the Pre-Cambrian rocks is suggested where the time-length of the Neo-, Meso-and Eo-Cryptozoic are about 500, 1000 and 1500 my. respectively.
The vertical and horizontal variation in facies and thickness which are seen in the Eo-Palaeozoic Group of the so-called normal facies on the shield are briefly summarized, and it is compared with that of the Hochgebirgesfacies. For this comparison the section of the Caledonian geosyncline through Jämtland to the Trondheim fjord is outlined.
Finally, the Geology of the Oslo region is sketched with some details of the Eocambrian and Eo-Palaeozoic Stratigraphy.
