Skip to main content

Research Repository

See what's under the surface


Fluvial style in the Lower Old Red Sandstone: Examples from southwest Wales, UK (2014)
Journal Article
Marriott, S. B., & Hillier, R. D. (2014). Fluvial style in the Lower Old Red Sandstone: Examples from southwest Wales, UK. Proceedings of the Geologists' Association, 125(5-6), 534-547. https://doi.org/10.1016/j.pgeola.2014.04.002

© 2014 The Geologists' Association. Studies of the behaviour of different types of present-day river channels with regard to sediment transport and depositional processes enable interpretation of fluvial deposits throughout the stratigraphic record.... Read More about Fluvial style in the Lower Old Red Sandstone: Examples from southwest Wales, UK.

Devensian Late-glacial environmental change in the Gordano Valley, North Somerset, England: A rare archive for southwest Britain (2008)
Journal Article
Case, D. J., Marriott, S. B., Spencer, C. D., Woodland, W. A., Hill, T. C., Hill, T. C. B., …Catt, J. A. (2008). Devensian Late-glacial environmental change in the Gordano Valley, North Somerset, England: A rare archive for southwest Britain. Journal of Paleolimnology, 40(1), 431-444. https://doi.org/10.1007/s10933-007-9171-5

The Late-glacial and Holocene environmental history of the Gordano Valley, North Somerset, UK has been reconstructed using pollen, sediment particle size and mineralogical analyses and radiocarbon dating. A Devensian sediment ridge across the valley... Read More about Devensian Late-glacial environmental change in the Gordano Valley, North Somerset, England: A rare archive for southwest Britain.

Possible climate variability in the Lower Old Red Sandstone Conigar Pit Sandstone Member (early Devonian), South Wales, UK (2007)
Journal Article
Williams, B. P., Marriott, S. B., Hillier, R. D., Marriott, S., Williams, B. P. J., & Wright, V. P. (2007). Possible climate variability in the Lower Old Red Sandstone Conigar Pit Sandstone Member (early Devonian), South Wales, UK. Sedimentary Geology, 202(1-2), 35-57. https://doi.org/10.1016/j.sedgeo.2007.05.006

The Early Devonian Conigar Pit Sandstone Member (CPSM) of the Freshwater West Formation (Lower Old Red Sandstone, Lochkovian age) at Freshwater West in south Wales comprises a heterolithic, predominantly alluvial suite (mudstones, fine to coarse-grai... Read More about Possible climate variability in the Lower Old Red Sandstone Conigar Pit Sandstone Member (early Devonian), South Wales, UK.

Holocene sea-level change in the Severn Estuary, southwest England: A diatom-based sea-level transfer function for macrotidal settings (2007)
Journal Article
Marriott, S. B., Spencer, C. D., Woodland, W. A., Hill, T. C., Hill, T. C. B., Woodland, W., …Marriott, S. (2007). Holocene sea-level change in the Severn Estuary, southwest England: A diatom-based sea-level transfer function for macrotidal settings. Holocene, 17(5), 639-648. https://doi.org/10.1177/0959683607078988

The recent growth in the use of microfossil-based transfer functions in late-Quaternary sea-level reconstructions reflects their potential to accurately quantify palaeo sea-level changes. This study details the development of a diatom-based sea-level... Read More about Holocene sea-level change in the Severn Estuary, southwest England: A diatom-based sea-level transfer function for macrotidal settings.

The dangers of taking mud for granted: Lessons from Lower Old Red Sandstone dryland river systems of South Wales (2007)
Journal Article
Marriott, S. B., Wright, V. P., & Marriott, S. (2007). The dangers of taking mud for granted: Lessons from Lower Old Red Sandstone dryland river systems of South Wales. Sedimentary Geology, 195(1-2), 91-100. https://doi.org/10.1016/j.sedgeo.2006.03.028

Mudrocks are a prominent feature of many ancient dryland successions but they are not always a product of the settling out of suspension load. From studies of the late Silurian-early Devonian Old Red Sandstone mudrocks of South Wales it has been show... Read More about The dangers of taking mud for granted: Lessons from Lower Old Red Sandstone dryland river systems of South Wales.

Investigating paleosol completeness and preservation in mid-Paleozoic alluvial paleosols: A case study in paleosol taphonomy from the Lower Old Red Sandstone (2006)
Journal Article
Marriott, S. B., Marriott, S., & Wright, V. P. (2006). Investigating paleosol completeness and preservation in mid-Paleozoic alluvial paleosols: A case study in paleosol taphonomy from the Lower Old Red Sandstone. Special Papers, 416, 43-52. https://doi.org/10.1130/2006.2416%2803%29

Preservational bias in paleosol formation is rarely discussed and remains a major issue in paleopedology. The relatively simple paleosol profiles of the Silurian-Devonian Old Red Sandstone alluvial successions of southwest Wales provide an opportunit... Read More about Investigating paleosol completeness and preservation in mid-Paleozoic alluvial paleosols: A case study in paleosol taphonomy from the Lower Old Red Sandstone.

Late quaternary environmental change in the Gordano Valley (2006)
Book Chapter
Hill, T., Woodland, W., Spencer, C., Case, D., Marriott, S., Bridle, A., & Brown, H. (2006). Late quaternary environmental change in the Gordano Valley. In C. O. Hunt, & S. K. Haslett (Eds.), Quaternary of Somerset, 115-143. Quaternary Research Association

Fish trails from the Lower Old Red Sandstone of Tredomen Quarry, Powys, southeast Wales (2004)
Journal Article
Marriott, S. B., Morrissey, L. B., Braddy, S. J., Bennett, J. P., Marriott, S., & Tarrant, P. R. (2004). Fish trails from the Lower Old Red Sandstone of Tredomen Quarry, Powys, southeast Wales. Geological Journal, 39(3-4), 337-358. https://doi.org/10.1002/gj.998

Alluvial deposits of the St Maughans Formation (Lower Old Red Sandstone, Early Devonian) of Tredomen Quarry, near Brecon, southeast Wales, have yielded the oldest known trails of swimming fish as well as body fossils of heterostracans and osteostraca... Read More about Fish trails from the Lower Old Red Sandstone of Tredomen Quarry, Powys, southeast Wales.