The petrology of the evaporites of the Eskdale No. 2 boring, east Yorkshire. Part III. The upper evaporite bed

Abstract

The rocks of the lower and middle evaporite beds of the Permian, passed through by the D'Arcy Exploration Company's boring in 1938-39 (Lees and Taitt, 1946), have been described in earlier communications (Stewart, 1949, 1951). The present paper deals with the petrography of the upper evaporite bed (3655-3860 feet below surface).