Age of the peel sandstone group, isle of man

Crowley, Stephen F.; Higgs, Kenneth T.; Piper, J. D. A.; Morrissey, Lance B.

doi:10.1002/gj.1129

Cited by 9 publications

(12 citation statements)

References 45 publications

(86 reference statements)

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“…One possible climatic control is monsoonal intensity, as suggested by Hillier et al (2008). The change in provenance that introduced sandier sediment into the basin is attributed to either a regional switch from a foreland setting to transtensional tectonics as hypothesized by Crowley et al (2009) or local intra-basin tectonics.…”

Section: Discussionmentioning

confidence: 99%

“…Sediment sources switched from the metamorphic Caledonian mountains to more local, inter-basin highs (Allen & Crowley 1983;Crowley et al 2009). In this scenario the Bishop's Frome Limestone may be related to basin-wide shutdown and little or no deposition during the transition to transtensional tectonics around the Silurian-Devonian boundary.…”

Section: Dynamic Lower Old Red Sandstone Landscapesmentioning

confidence: 99%

“…It has been hypothesized that by the Early Devonian metamorphic sources had been cut off and the basin infilled with more locally sourced sedimentary and igneous detritus (Allen & Crowley 1983). Crowley et al (2009) attributed this change in provenance to basin-wide tectonics switching from a foreland flexure setting to sinistral transtensional tectonics. The development of half-grabens probably provided local sources and significantly altered drainage systems (Crowley et al 2009).…”

Section: Lower Old Red Sandstone Of the Anglo-welsh Basinmentioning

confidence: 99%

“…Crowley et al (2009) attributed this change in provenance to basin-wide tectonics switching from a foreland flexure setting to sinistral transtensional tectonics. The development of half-grabens probably provided local sources and significantly altered drainage systems (Crowley et al 2009). Sedimentation in the Anglo-Welsh Basin was initially marine-influenced, but by the Early Devonian was wholly terrestrial and sedimentation ceased at the end of the Emsian with the onset of the Acadian orogeny (Barclay et al 2005).…”

Section: Lower Old Red Sandstone Of the Anglo-welsh Basinmentioning

confidence: 99%

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Siluro-Devonian landscapes of southern Britain: the stability and nature of early vascular plant habitats

Morris¹,

Wright

Edwards³

2012

JGS

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A prerequisite for plant taphonomy and palaeoecological analysis of early land plants is to understand the palaeogeomorphology of the landscapes that they inhabited. The Lower Old Red Sandstone of the Anglo-Welsh Basin was chosen to ascertain the nature of the landscapes and range and variability of potential plant habitats. Evidence is provided for dynamic, low-lying landscapes, with complex hydrology and mosaics of microenvironments. The Raglan Mudstone Formation (latest Přídolí–earliest Lochkovian) represents a mud-dominated, ephemeral dryland river system, active during short-lived high-discharge events. Plant habitats were restricted to areas with temporarily elevated water tables, suitable for plants with short life cycles (e.g. rhyniophytes). The St. Maughans Formation (early Lochkovian) represents a sand-dominated, perennial trunk channel river system, with an overall wetter, more stable landscape. Plant habitats extended into areas of permanently elevated water tables, where plants with a more extensive vegetative growth stage survived (e.g. zosterophylls). In association with evidence from the plant fossil record, this leads to the hypothesis that during the latest Silurian to earliest Devonian the landscapes across the southern margins of Laurussia were too hostile (overall moisture deficient and unstable) for plants of higher organization than rhyniophytes to establish, despite their radiation across palaeoequatorial latitudes much earlier.

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Section: Discussionmentioning

confidence: 99%

Section: Dynamic Lower Old Red Sandstone Landscapesmentioning

confidence: 99%

Section: Lower Old Red Sandstone Of the Anglo-welsh Basinmentioning

confidence: 99%

Section: Lower Old Red Sandstone Of the Anglo-welsh Basinmentioning

confidence: 99%

See 2 more Smart Citations

Siluro-Devonian landscapes of southern Britain: the stability and nature of early vascular plant habitats

Morris¹,

Wright

Edwards³

2012

JGS

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“…Here a weakly deformed Old Red Sandstone succession, the Peel Sandstone Group, with Early Devonian palaeomagnetic declinations, microflora and trace fossils (Crowley et al 2009), is faulted against strongly deformed early Ordovician and mid-Silurian (Wenlock) rocks (Woodcock et al 1999). Here a weakly deformed Old Red Sandstone succession, the Peel Sandstone Group, with Early Devonian palaeomagnetic declinations, microflora and trace fossils (Crowley et al 2009), is faulted against strongly deformed early Ordovician and mid-Silurian (Wenlock) rocks (Woodcock et al 1999).…”

Section: Discussion: Significance Of the Lligwy Structuresmentioning

confidence: 99%

Major folds affecting the Lower Old Red Sandstone Group at Lligwy, Anglesey, North Wales, and their regional significance

Treagus

Woodcock

2011

Geol. Mag.

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The Old Red Sandstone on Anglesey, North Wales, presumed Lower Devonian in age, is folded and locally cleaved, but the intensity of this deformation has previously been understated. We describe two S-verging anticline-syncline pairs, one with a strongly overturned middle limb, their associated minor folds and an axial-planar cleavage. The intensity of the deformation calls into question a proposed link to Variscan fault displacements, and the angular unconformity below the Old Red Sandstone precludes the deformation being part of a continuous 'late Caledonian' phase. We consider this deformation of the Old Red Sandstone to be mid-Devonian, correlating with the Acadian phase in mainland Wales. It is predated by a Silurian shortening deformation on Anglesey that is possibly related to the closure of the Iapetus Ocean, absent in mainland Wales and the Lake District, but perhaps preserved also on the Isle of Man.

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Tectonic structures in the Peel Sandstones and Carboniferous limestone, Isle of Man

Fitches¹

2010

Geological Journal

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On the Isle of Man, the Early Devonian Peel Sandstones and Early Carboniferous limestones have been deformed in places by folds, cleavage and other structures. The structures in the Peel Sandstones have been attributed to pre‐lithification deformation associated with slumping of the red beds. Here, they are re‐interpreted to be products of post‐lithification deformation, inferred from small‐scale structures and fabrics, which took place in a localized thrust zone. Compression was approximately NW–SE and translation towards the SE. That deformation may have also produced some of the late structures in the Lower Palaeozoic rocks of the island. The minimum age of these post‐Early Devonian structures is unknown but is probably pre‐Carboniferous: they may represent the mid‐Devonian Acadian deformation. The Carboniferous succession is folded in places and contains stylolites and stylolitic cleavage. A stress regime with E–W to WNW–ESE compression is inferred. These structures have orientations and morphologies shown to resemble those in neighbouring parts of southern Britain, where they are attributed mainly to mid‐ to late‐Carboniferous Variscan events. Alternatively, some or all of them might be products of late Mesozoic and Tertiary tectonics recognized elsewhere in the region. Copyright © 2010 John Wiley & Sons, Ltd.

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Age of the peel sandstone group, isle of man

Cited by 9 publications

References 45 publications

Siluro-Devonian landscapes of southern Britain: the stability and nature of early vascular plant habitats

Siluro-Devonian landscapes of southern Britain: the stability and nature of early vascular plant habitats

Major folds affecting the Lower Old Red Sandstone Group at Lligwy, Anglesey, North Wales, and their regional significance

Tectonic structures in the Peel Sandstones and Carboniferous limestone, Isle of Man

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