|Statement||by I. B. Paterson and A. L. Harris.|
|Series||Report -- no. 69/7.|
|Contributions||Harris, A. L. 1935-|
|The Physical Object|
Buy Lower Old Red Sandstone ignimbrites from Dunkeld, Perthshire (Report / Institute of Geological Sciences) by Paterson, I. B (ISBN: ) from Amazon's Book Store. Everyday low prices and free delivery on eligible : I. B Paterson. Gateway to the Earth. Home. Data. The Old Red Sandstone comprises two cycles of basin fill: the older (the Lower Old Red Sandstone) is separated by a major unconformity from the younger (the Upper Old Red Sandstone). Each cycle begins with conglomeratic sedimentation in pull-apart . Lower Old Red Sandstone ignimbrites from Dunkeld, Perthshire Report / Institute of Geological Sciences: : I. B Paterson: Libros en idiomas extranjerosAuthor: I. B Paterson.
Palaeomagnetic and geochemical evaluation of a terrane-linking ignimbrite: evidence for the relative position of the Grampian and Midland Valley terranes in late Silurian time - Volume Issue 3 - A. Trench, P. D. W. Haughton. The Lower Old Red Sandstone lithofacies contains strata ranging in age from Wenlock (Silurian) to Emsian (Devonian). Prior to this review, there were well over valid formations and members in the late Silurian to early Devonian Lower Old Red Sandstone. The new term Lanark Group includes all late Silurian to Devonian formations in. The Old Red Sandstone is an assemblage of rocks in the North Atlantic region largely of Devonian age. It extends in the east across Great Britain, Ireland and Norway, and in the west along the northeastern seaboard of North also extends northwards into Greenland and Svalbard. These areas were a part of the ancient continent of Euramerica/Laurussia. Sedimentary rocks in the Lower Old Red Sandstone have similar detrital zircon age distributions, which are dominated by c. Ga zircons as well as late Neoproterozoic grains. This indicates a dominant contribution of detritus of Laurentian affinity as well as contributions from westerly and southerly.
The Lower Old Red Sandstone rocks of the Perth area lie between the main Ochil mass to the south-west and the Sidlaws to the north-east. Eleven hundred metres of Arbuthnott Group lavas in the Ochil Volcanic Formation are exposed here, consisting mainly of basalts with a lower porphyritic group and an upper non-porphyritic group. The Tay enters Strathmore through the Pass of Birnam near Dunkeld. Strathmore is a broad vale of soft Old Red Sandstone rocks some 80 km lower Tay and its tributaries lie in these soft rocks. The Romans were the first to settle on the lower Tay, founding a number of settlements including a signal station where the Tay and Isla join. The Scottish Old Red Sandstone (ORS) lavas are of vital importance for establishing the struc- ture of the Lower Devonian geomagnetic field and may have great potential significance for evaluat- ing aspects of the tectonic evolution of the British Isles during mid-Palaeozoic. the ‘New Red Sandstone’ (see the companion GCR volume by Benton et al., ) to distinguish them from the Old Red Sandstone, rocks that are about million years (Ma) older. In the early days of geological research in the s, the Old Red Sandstone was included in the Carboniferous System, but soon after was given separate status and.