gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1951.029.214.02 The Paragenesis of Sylvine, Carnallite, Polyhalite, and Kieserite in Eskdale Borings nos. 3, 4, and 6, North-East Yorkshire Armstrong G. B.Sc., F.G.S. Dunham K. C. D.Sc., S.D., F.G.S. Harvey C. O. B.Sc., A.R.C.S., F.R.I.C. Sabine P. A. Ph.D., A.R.C.S., F.G.S. Waters W. F. B.Sc., F.R.I.C. Geological Survey of Great Britain. 9 1951 29 214 667 689 Copyright © 1951, The Mineralogical Society 1951