Cardiff University | Prifysgol Caerdydd ORCA
Online Research @ Cardiff 
WelshClear Cookie - decide language by browser settings

The structure of the Taff Gorge area, Glamorgan, and the stratigraphy of the Old Red Sandstone—Carboniferous Limestone transition

Gayer, Rodney A., Allen, K. C., Bassett, M. G. and Edwards, Dianne 1973. The structure of the Taff Gorge area, Glamorgan, and the stratigraphy of the Old Red Sandstone—Carboniferous Limestone transition. Geological Journal 8 (2) , pp. 345-374. 10.1002/gj.3350080212

Full text not available from this repository.

Abstract

Lithostratigraphical and structural mapping of the Taff Gorge area, Glamorgan, has revealed a number of E-W trending folds and thrusts. These were developed during the early stages of the Hercynian deformation as a result of an approximately N-S principal compressive strain. Coeval with the folding, a conjugate set of sub-vertical wrench faults, symmetrical about the principal compressive strain, divided the area into tectonic blocks and to some extent controlled the progressive development of folds and thrusts within the individual blocks. Later Hercynian deformation gave rise firstly to oblique-slip and finally to dip-slip movement on the faults. The lithological transition between the Old Red Sandstone and Carboniferous Limestone is described in detail, including the diagenetic history of the limestones. Marine horizons are shown to be present within the dominantly fluviatile Old Red Sandstone, and the base of the Carboniferous Limestone is defined at the base of the lowest limestone of the continuous marine sequence. Studies of spores, macroplants, conodonts and brachiopods indicate that the whole of the Upper Old Red Sandstone and Lower Limestone Shale in the Taff Gorge are of Tournaisian age.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Earth and Ocean Sciences
Subjects: Q Science > QE Geology
Q Science > QK Botany
Publisher: Wiley-Blackwell
ISSN: 0072-1050
Last Modified: 04 Jun 2017 02:13
URI: http://orca.cf.ac.uk/id/eprint/10945

Citation Data

Cited 25 times in Google Scholar. View in Google Scholar

Cited 16 times in Scopus. View in Scopus. Powered By Scopus® Data

Actions (repository staff only)

Edit Item Edit Item