STRATIGRAPHY OF THE BROADFORD BEDS OF SKYE, RAASAY AND APPLECROSS
- 1 October 1959
- journal article
- Published by Geological Society of London in Proceedings of the Yorkshire Geological and Polytechnic Society
- Vol. 32 (2) , 165-184
- https://doi.org/10.1144/pygs.32.2.165
Abstract
Summary: The Broadford Beds of the Skye area are exposed in several isolated patches which have been much disturbed by Tertiary faulting and intrusive activity. They can be divided into two main divisions. The Lower Broadford Beds range from the Angulata (and probably the upper Planorbis) Zone to the Bucklandi Zone and consist of rather poorly fossiliferous calcilutites, calcarenites, sandstones and subsidiary shales. The Upper Broadford Beds range from the lower Semicostatum to the lower Obtusum Zone and consist predominantly of silty and sandy shales and sandstones. They contain a rich fauna, including abundant ammonites. Whereas the Lower Broadford Beds thin southwards to zero the Upper Broadford Beds thicken considerably in this direction, up to 340 feet in southern Strath. Most of the beds were laid down in shallow water which might have been brackish periodically during Angulata-Bucklandi Zone times. The sharp change from the Lower to the Upper Broadford Beds is probably the result of a pronounced and widespread sinking of the land, profoundly altering the local geography. No simple “Scottish landmass” can be envisaged.This publication has 5 references indexed in Scilit:
- XXV.— The Liassic Sequence in MorvernTransactions of the Geological Society of Glasgow, 1954
- XV.— A Note on the Base of the Lias near Broadford, SkyeTransactions of the Geological Society of Glasgow, 1942
- On Lower Lias Ammonites from SkyeGeological Magazine, 1922
- The Secondary Rocks of Scotland. Third Paper. The Strata of the Western Coast and IslandsQuarterly Journal of the Geological Society, 1878
- On the Geology of Strath, SkyeQuarterly Journal of the Geological Society, 1858