A deep-marine ichnofaunal assemblage from Llandovery strata of the Welsh Basin, west Wales, UK

Article Abstract:

Sedimentological differences in Cwmerfyn and Neuadd Fawr in the Welsh Basin does not prevent turbidities of Llandovery age from the two localities from containing post-depositional ichnofaunal assemblages that are full of endostratal pascichna. The assemblages are different from the pre-dispositional and post-depositional assemblages in the Aberystwyth Grits Group. Scientists have posited the view that diverse ichnofaunal assemblages arise from varying degrees of oxygenation of the sediment profile.

Sedimentary structures, Trace fossils

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Evidence for temperate soil development during the Early Devensian in Gower, South Wales

Article Abstract:

An application of paleopedologic microscopy to the sequences of the Pwll Du Red Beds in Gower, South Wales, has revealed compound void coatings. The red beds overlie marine deposits of Oxygen Isotope Substage 5e and are found below Devensian deposits. Sedimentation of the red beds probably began during Oxygen Isotope Substage 5d. Though further evidence may place the exact time of pedogenesis somewhat later, it definitely occurred in the Early Devensian.

Soil science, Paleoclimatology

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Discussion on Cambrian stratigraphy of St Tudwal's Peninsula, Gwynedd, northwest Wales

Article Abstract:

T.P. Young and W.T. Dean's paper on the Cambrian biostratigraphy in Wales contains serious errors and omissions. The Cambrian sequence at St Tudwal's resembling the Harlech Dome sequence is not addressed by Young. The subdivisions in the fine-grained sedimentary strata of the Cambrian sequence remain unclarified, and comparisons with Nicholas's 1915 study of the region reveal more shortcomings.

Geology, Stratigraphic, Stratigraphy, Cambrian period

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