Hostname: page-component-76fb5796d-wq484 Total loading time: 0 Render date: 2024-04-26T20:52:59.131Z Has data issue: false hasContentIssue false

Probable orthocone skip and roll marks from the Aberystwyth Grits

Published online by Cambridge University Press:  01 May 2009

D. E. B. Bates
Affiliation:
Geology DepartmentUniversity College of WalesAberystwythWales

Summary

Skip and roll marks, probably the impressions of orthocones, are described from the Aberystwyth Grits (Lower Silurian, mid-Wales).

Type
Articles
Copyright
Copyright © Cambridge University Press 1974

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Challinor, J. 1947. A remarkable example of superficial folding due to glacial drag near Aberystwyth. Geol. Mag. 84, 270–2.CrossRefGoogle Scholar
Craig, G. Y. & Walton, E. K. 1962. Sedimentary structures and paleocurrent directions from the Silurian Rocks of Kirkcudbrightshire. Trans. Edin. geol. Soc. 19, 100–19.CrossRefGoogle Scholar
Dzulinski, S. & Sanders, J. E. 1962. Current marks on firm mud bottoms. Trans. Connecticut Acad. Sci. 42, 5796.Google Scholar
Fitches, W. R. 1972. Polyphase deformation structures in the Welsh Caledonides, near Aberystwyth. Geol. Mag. 109, 149–55.CrossRefGoogle Scholar
Kelling, G. & Whitaker, J. H. McD. 1970. Tool marks made by ribbed orthoconic nautiloids. J. Geol. 78, 371–4.CrossRefGoogle Scholar
Moore, R. C. (Ed.) 1964. Treatise on Invertebrate Paleontology. Part K, Mollusca 3. Univ. of Kansas Press, 519 pp.Google Scholar
Wood, A. & Smith, A. J. 1959. The sedimentation and sedimentary history of the Aberystwyth Grits (Upper Llandoverian). Q. Jl geol. Soc. Lond. 114, 163–95.CrossRefGoogle Scholar