Dent Group

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Series: Geological Society, London, Special Publications
Published: 01 January 2000
DOI: 10.1144/SR24.8
EISBN: 9781862396920
... the Skiddaw Group successions are followed unconformably by thick arc volcanics, the Eycott and Borrowdale volcanic groups, of possible late Llanvirn to early Caradoc age (Molyneux 1988; Millward & Molyneux 1992).These are overlain, again unconformably, by the Dent Group, neritic marine sediments of mid...
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Journal Article
Published: 01 November 2005
Proceedings of the Yorkshire Geological Society (2005) 55 (4): 263-285.
... foreland basin sequence. In particular, a number of key marker beds are described and better located, both geographically and stratigraphically. These markers include: (a) a unit of conglomerate and sandstone, probably syn-glacial, in the upper (Ashgill) part of the Dent Group; (b) the basal, carbonate...
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Journal Article
Published: 01 January 1971
Italian Journal of Geosciences (1971) 90 (4): 401-414.
...Giorgio Vittorio Dal Piaz; Renato Nervo GeoRef, Copyright 2012, American Geosciences Institute. 1971 Alps amphibole group boudinage Central Alps chain silicates chemical composition clinoamphibole Dent Blanche Europe glaucophane gneisses Italy klippen lithostratigraphy...
Journal Article
Published: 01 November 2015
Proceedings of the Yorkshire Geological Society (2015) 60 (4): 258-274.
... along normal faults. Instead the faults bound slivers of older rocks; Cautley Mudstone Formation (upper Ordovician, Dent Group) and Brathay Formation (mid-Silurian, Tranearth Group). The kinematics of the Dent, Barbon and Craven faults are consistent with NNW–SSE shortening during late Carboniferous...
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Journal Article
Published: 01 July 2008
Journal of the Geological Society (2008) 165 (4): 829-837.
...-parallel permeability of the Carboniferous units was probably appreciable, particularly through the sandstone units of the Wensleydale and Stainmore groups. The resulting local fluid-flow model for the Dent–Rawthey zone ( Fig. 9 ) should be of use as an analogue in other cases of upper crustal...
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Journal Article
Published: 01 May 2006
Journal of the Geological Society (2006) 163 (3): 431-446.
... , with suggested fields of surface-linked fissure fills and subsurface fault-void collapse breccia lacking connectivity to surface sediment supply. Followed northwestward, down its inverted stratigraphy towards the Dent Fault, the Wensleydale Group includes three limestone units, taken to be the Simonstone...
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Journal Article
Journal: GSA Bulletin
Published: 01 May 2005
GSA Bulletin (2005) 117 (5-6): 736-745.
...Jon P.T. Tarasewicz; Nigel H. Woodcock; J. Anthony D. Dickson Abstract The obliqu-reverse Dent Fault, northwest England, throws Carboniferous limestone units in the footwall against mudston-dominated lower Paleozoic rocks in the hanging wall. The fault zone cuts the kilometer-wide steep limb...
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Journal Article
Published: 09 February 2017
Journal of the Geological Society (2017) 174 (3): 541-556.
...Paola Manzotti; Michel Ballèvre; Giorgio Vittorio Dal Piaz Abstract Several Permian gabbro bodies are known in the continental-derived Dent Blanche Tectonic System (Western Alps). A new gabbroic complex, the Berrio Gabbro, is described in this paper, and compared with the other gabbro bodies...
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Series: Geological Society, London, Engineering Geology Special Publications
Published: 01 January 2016
DOI: 10.1144/EGSP27.19
EISBN: 9781862399723
..., comprising the Latrobe Valley Group. Three stratigraphic units, namely the Traralgon, Morwell and Yallourn formations in ascending sequence, contain the three main coal seam groups (Fig. 1 ). The seams, which form some of the thickest continuous coal successions in the world, generally accumulated in place...
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Journal Article
Journal: Geophysics
Published: 01 July 1983
Geophysics (1983) 48 (7): 910-933.
...Brian Dent Abstract Variable water depth can cause severe degradation of marine seismic data. When the water depth changes rapidly relative to the cable length, the timing variations are dynamic. To compensate for these timing variations, a ray-trace modeling program calculated the traveltimes...
Journal Article
Published: 01 April 1981
American Mineralogist (1981) 66 (3-4): 392-397.
...M. Mathew; S. Takagi; K. R. Waerstad; A. W. Frazier Abstract Synthetic chukhrovite, Ca 4 AlSi(SO 4 )F 13 · 12H 2 O crystallizes in the cubic space group Fd 3, with a = 16.710 (2)Å and Z = 8. The structure was refined to R w = 0.028 and R = 0.025, using 481 nonzero reflections. Al and Si...
Journal Article
Journal: Paleobiology
Published: 01 January 2004
Paleobiology (2004) 30 (1): 129-145.
... 1980 , 1992 ; Fisher 1987 ). For example, analyses of the sex ratio and age profiles of mammoths at Clovis sites led Saunders (1980 , 1992 ) to propose that several sites, including Miami and Dent, each represented the slaughter of a family group, which would suggest that Paleo-Indian hunters...
Series: Society of Economic Geologists Guidebook Series
Published: 01 January 1995
DOI: 10.5382/GB.23
EISBN: 9781934969762
... precise because the deposits are hosted in Devonian limestones, and Zn-Pb mineralization in faults and veins is truncated by the unconformity at the base of the late Carboniferous and Permian Grant Group. Locally, as at Blendevale, detrital clasts of mineralized limestone are preserved in erosional...
Journal Article
Published: 01 November 2015
Mineralogical Magazine (2015) 79 (6): 1353-1367.
...J. Quirke; C. M. B. Henderson; R. A. D. Pattrick; K. M. Rosso; A. Dent; J. W. Sharples; C. I. Pearce Abstract Geological disposal facilities (GDF) are intended to isolate and contain radioactive waste within multiple protective barriers, deep underground, to ensure that no harmful quantities...
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Journal Article
Published: 01 February 2008
Mineralogical Magazine (2008) 72 (1): 197-200.
...J. F. W. Mosselmans; P. D. Quinn; J. Roque Rosell; K. D. Atkinson; A. J. Dent; S. I. Cavill; M. E. Hodson; C. A. Kirk; P. F. Schofield Abstract Synchrotron based μ-XRF, μ-XAS and μ-XRD have made a major impact in the field of environmental science in the last ten years. One of the first seven ‘day...
Journal Article
Published: 01 November 2010
Quarterly Journal of Engineering Geology and Hydrogeology (2010) 43 (4): 429-446.
...M.G. Winter; J. Dent; F. Macgregor; P. Dempsey; A. Motion; L. Shackman Abstract Abstract In August 2004 a series of landslides in the form of debris flows occurred in Scotland. Critically, the A83, A9 and A85 routes, which form important parts of the major road network, were all affected...
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Journal Article
Published: 01 March 2016
Bulletin de la Société Géologique de France (2016) 187 (2): 105-120.
... présente une dent de pliosaure du Bathonien de Bernay-en-Champagne qui serait la plus ancienne découverte d’un représentant de ce groupe. Deux autres aquarelles montrent une portion de mandibule d’un crocodylomorphe marin (Thalattosuchia, Metriorhynchidae indéterminé) et une vertèbre de plésiosaurien...
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Journal Article
Journal: GSA Bulletin
Published: 01 June 2002
GSA Bulletin (2002) 114 (6): 718-730.
... maximum estimates. Nevertheless, these rates are orders of magnitude lower than those computed on theoretical grounds. During eruptions of the nearby McMurdo Group volcanic centers, ash-fall debris collects at the surface of Granite drift, either in open thermal-contraction cracks or in deep troughs...
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Journal Article
Published: 01 February 2011
Italian Journal of Geosciences (2011) 130 (1): 61-74.
... and coexisting with epidote + albite. Amphibolites of the second group are garnet-free and display syn-tectonic hornblende + anorthitic plagioclase. Clinopyroxene relics are partially replaced by aggregates of amphibole + epidote. The Dent Blanche nappe (DBL) has been classically subdivided in the Arolla (AR...
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Series: Society of Exploration Geophysicists Open File
Published: 01 January 1996
EISBN: 9781560801894
... relief at the pre-Cretaceous subcrop, stratigraphic anomalies (thicker sections of reefal car—bonate) within the Winterburn Group, and seismic focusing caused by draping of the Ireton Abstract On the basis of the interpretation of conventional surface-seismic data, an exploratory well (referred...