166 0. Holtedahl — A Tillite-like Conglomerate. 



mary review of the stratigraphic sequence of the series, 

 from which the chronologic position of the conglomer- 

 ates may be seen. A great many Scandinavian geologists 

 have contributed to the clearing up of these features, as 

 Kjerulf, Schiotz, Tornebohm, Minister, Bjorlykke, Gold- 

 schmidt, Werenskiold, and others. The writer has 

 studied the problem of the Sparagmites in the field dur- 

 ing the summers of 1919 and 1920. 



Fig. 1. — Sparagmite area of Southern Norway dotted. M=zMjosen. 



The greater and especially the northern and central 

 parts of the region covered by sparagmite rocks have been 

 very decidedly deformed by the Caledonian orogeny, and 

 the rocks are highly metamorphosed. The stratigraphic 

 sequence given below is based especially on the conditions 

 met with in the most southern belt, particularly in the 

 region around the northern part of the great lake Mjosen. 

 Even here, intense folding and thrusts have taken place, 



