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Hangman Sandstone

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Journal Article
Published: 18 April 2024
Journal of the Geological Society (2024) 181 (4): jgs2023-204.
... unrecognized cladoxylopsid forest landscape, archived within the Eifelian Hangman Sandstone Formation of Somerset and Devon, SW England. This unit has previously been considered palaeobotanically depauperate, but is here shown to contain the earliest fossil evidence for such trees in the British record...
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Geological context of the <span class="search-highlight">Hangman</span> <span class="search-highlight">Sandstone</span> Formation. ( a ) Stratigraphy o...
Published: 18 April 2024
Fig. 1. Geological context of the Hangman Sandstone Formation. ( a ) Stratigraphy of the Exmoor Group showing the position of the Hangman Sandstone Formation and its informal members (as defined by Tunbridge 1978 and Goldring et al. 1978 ). ( b ) Outcrop area of the Hangman Sandstone
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Root structures in the <span class="search-highlight">Hangman</span> <span class="search-highlight">Sandstone</span> Formation. ( a ) Reduced downwards...
Published: 18 April 2024
Fig. 14. Root structures in the Hangman Sandstone Formation. ( a ) Reduced downwards-bifurcating vertical root structures in very fine-grained sandstone, Greenaleigh. ( b ) Detail of part (a), with bifurcations arrowed. ( c ) Groundwater ferricrete that has picked out the structure of a cross
Journal Article
Published: 01 April 1987
Journal of the Geological Society (1987) 144 (2): 353–354.
... can be regarded as a westward extension of the Ardennes Massif of N France, and that this belt acted as a source for the Hangman Sandstone Group in N Devon. On the basis that this assumption is valid, they develop the proposal that the Gramscatho Group of S Cornwall represents part of a continuous...
Journal Article
Published: 01 January 1986
Journal of the Geological Society (1986) 143 (1): 107–115.
...I. P. TUNBRIDGE Abstract The Hangman Sandstone Group (Eifelian) of North Devon contains two continental 'Old Red Sandstone' formations. The Trentishoe Formation is some 1000 m thick and consists of lithic arenites which petrographically match closely with those in the higher parts of the Lower Old...
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Palaeoenvironmental reconstruction of the depositional environment of the H...
Published: 18 April 2024
Fig. 20. Palaeoenvironmental reconstruction of the depositional environment of the Hangman Sandstone Formation, summarizing vegetation–landscape interactions across a transect of a distributive fluvial system to marginal marine setting.
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Summary of the sedimentary and palaeoecological controls on plant and trace...
Published: 18 April 2024
Fig. 19. Summary of the sedimentary and palaeoecological controls on plant and trace fossil distribution across the sub-environments of the Hangman Sandstone Formation distributive fluvial system. See text for details.
Journal Article
Published: 01 February 1983
Journal of the Geological Society (1983) 140 (1): 147–158.
... and early Middle Devonian rocks of the Bristol Channel region, southern England 1978a Thesis, PhD, Univ. Reading (unpubl.) Tunbridge I. P. Scrutton C. T. North Devon—Lower and Middle Devonian: Hangman Sandstone Group International Symposium on the Devonian System 1978b (PADS 78) Sept...
Journal Article
Journal: Geology
Published: 08 October 2024
Geology (2024) 52 (12): 948–952.
... and vegetation-induced sedimentary structures from the Middle Devonian (Eifelian) Hangman Sandstone Formation, Somerset and Devon, SW England : Journal of the Geological Society , v. 181 , https://doi.org/10.1144/jgs2023-204 . De Baar , H.J.W. , Bacon , M.P. , and Brewer , P.G. , 1983...
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Journal Article
Published: 01 May 1973
Journal of the Geological Society (1973) 129 (3): 245–271.
... North Devon Bristol Channel South Wales Permo-Triassic Upper Culm tUpper Lower Culm JCarboniferous /Lower Pilton Beds Carboniferous Baggy and ! Marwood Beds ~ Upper Pickwell Down Sandstone t Devonian Morte Slates Ilfracombe Beds Hangman Grits ], Foreland Grits)~ °wer. Lynton Beds -~x)evoman Jurassic...
Journal Article
Published: 01 January 2004
Journal of the Geological Society (2004) 161 (1): 31–44.
... of the Bristol Channel Thrust, which becomes the Bristol Channel Fault at the surface. They concluded that the Bristol Channel Thrust juxtaposes the Devonian of north Devon and the Old Red Sandstone and Carboniferous of South Wales. In this paper we present seismic evidence for a second thrust, the Gravel Margin...
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Journal Article
Published: 01 April 1977
Journal of the Geological Society (1977) 133 (4): 385–393.
... of the Lower Old Red Sandstone: Llanishen Conglomerate of the Cardiff area, South Wales Proc Geol Ass 1975 86 63 76 Al-Sadi H. N. A gravity investigation of the Pickwell Down Sandstone, north Devon Geol Mag 1967 104 63 72 Bott M. H. P. Day A. A. Masson-Smith D...
Journal Article
Published: 01 September 2007
Journal of the Geological Society (2007) 164 (5): 1023–1036.
... strike to the north, with its Devonian, if not strictly Acadian, deformation ( Fig. 3 , column 10). If this Brabantian phase is due to stress transmitted from the collision with Far Eastern Avalonia, this juxtaposition may be no problem. Eifelian coarse clastic facies in north Devon (Hangman Sandstone...
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Journal Article
Published: 01 November 2011
Scottish Journal of Geology (2011) 47 (2): 113–132.
... together during the Grenvillian Orogeny before Moinian conglomerates, shales and sandstones were deposited unconformably across both units, at c . 1000 Ma. The two units are separated by a zone of highly deformed Moinian psammites and semipelites exposed in the A87 road section SE of Dornie, which...
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Journal Article
Published: 01 May 2006
Proceedings of the Yorkshire Geological Society (2006) 56 (1): 41–53.
...; mixed fluvial and aeolian Anglo-Welsh D ?H UGP Y Callow, Hereford and Worcester 3 50811 2 16703 Devonian Brownstones Formation; fluvial Anglo-Welsh A BR UGP N Triscombe, Somerset 3 61001 35500 Devonian Hangman Sandstone Formation; fluvial Quantock D B LP N Corncockle...
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Journal Article
Published: 01 July 1977
Journal of the Geological Society (1977) 133 (5): 433–445.
... (e.g. Coal Measures) strata (see Table I). Parts of the Old Red Sandstone succession also exhibit velocities in this range. In Carmarthenshire, for example, Red Marls have yielded a velocity of 4'77 km/s (Brooks & James i975) , and some long seismic lines recently completed in South Wales give evidence...
Journal Article
Journal: PALAIOS
Published: 27 September 2024
PALAIOS (2024) 39 (9): 301–322.
... forest: fossilized trees and vegetation-induced sedimentary structures from the Middle Devonian (Eifelian) Hangman Sandstone Formation, Somerset and Devon, SW England : Journal of the Geological Society , v. 181 , article jgs2023–204, doi: 10.1144/jgs2023-204 , open access. Decombeix...
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Journal Article
Published: 01 December 1983
Journal of the Geological Society (1983) 140 (6): 893–911.
.... the Pickwell Down Sandstone and the Hangman Grits of north Devon) are likely to be interbedded with marine shales, siltstones and lime- stones (e.g. the Baggy Beds, Upcott Beds, Morte Slates, Ilfracombe Slates and Lynton Beds). The thicknesses of the Devonian in the southern part of the section may be similar...
Journal Article
Published: 01 January 1986
Journal of the Geological Society (1986) 143 (1): 141–147.
... cover, representing a continuation of. the basement in Brittany. On the northwest side of the fault there is a northerly zone of sandstones and slates of Rhenohercynian affinities, and a southerly zone of granitic rocks similar to those of the Mid-German Crystalline Rise and Moldanubian block. Between...
Journal Article
Published: 03 February 2023
Scottish Journal of Geology (2023) 59 (1-2): sjg2022-007.
... replacement. The frame appears to be original; from field observation it is of the same sandstone as the body of the mausoleum, and a frame is present in the original contract sketches for the mausoleum (NRS GD18/1752). The sandstone is a very pale orange (10YR 8/2, Munsell Rock-Color Chart), iron-stained...
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