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Skerries Group

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Journal Article
Published: 01 February 1991
Journal of the Geological Society (1991) 148 (1): 5–8.
... described; the Skerries Group, Gwna Group and Fydlyn Group (Shackleton 1969). The most characteristic feature of the Gwna Group exposures is that the rocks are melanges and no coherent internal stratigraphy for this sequence is known. The stratigraphic status of the Skerries Group and, in particular...
Journal Article
Published: 01 August 1979
Journal of the Geological Society (1979) 136 (4): 407–432.
..., outcropping in the NW, comprises the Church Bay Tuffs, Skerries and Gwna Groups of Greenly's succession, as well as greywackes and slates, correlated by Greenly with the New Harbour Group. However, the Cemlyn Unit is less deformed than the New Harbour Unit and their relationships may be unconformable...
Journal Article
Published: 01 December 1991
Journal of the Geological Society (1991) 148 (6): 1079–1090.
... (Maltman 1977). Overly- ing the New Harbour Group are the predominantly volcaniclastic metasediments of the Skerries Group (Greenly 1919; Shackleton 1969, 1975). This group is in turn overlain by the Gwna Group (Shackleton 1969, 1975), a regional-scale melange. The Monian Supergroup has generally been...
Image
Composite clay mineral stratigraphy of the Triassic succession in the Leice...
Published: 01 March 2006
authors are shown, (a) P. Grp – Penarth Group; A.S. Fm. – Arden Sandstone Formation; B.A. Fm. – Blue Anchor Formation; W. Fm. – Westbury Formation; L. Fm. – Lilstock Formation; C.S. Mbr – Cotgrave Skerry Member; H.S. Mbr – Hollygate Skerry Member.
Image
Zonation of algal accumulations in the shore zone of the Great Salt Lake, U...
Published: 19 July 2013
the Lower Stromness Flagstone Group at Skerry of Ness, Stromness.
Image
Logged sections illustrating the variability in cycle form. ( A ) A symmetr...
Published: 01 November 2010
of Cadbol [NH 891 782]. ( C ) A positively skewed cycle from the Lower Stromness Flagstones of Skerry of Ness, Stromness [HY 247 077], from the northern region of the basin. ( D ) A cycle with an extended positive skew from the Lower Strath Rory Group of Tarrel Bay [NH 900 793] at the southern margin
Journal Article
Published: 01 February 1975
Journal of the Geological Society (1975) 131 (1): 63–67.
.... These show the variation of the peak current speeds and of the residual tidal currents over the Bay. The maps show that the residual currents are negligible along the spine of the Skerries Bank and it is proposed that this is an important factor in understanding the permanence of the Bank. J ohn R...
Journal Article
Published: 01 February 1975
Journal of the Geological Society (1975) 131 (1): 37–48.
.... Geophysical evidence supports this hypothesis. Barbara Joan Lees, Institute of Oceanographic Sciences, Crossway, Taunton, Somerset TA 1 2 D.W. read at joint meeting of Marine Studies Group and British Micropalaeontological Group 20 April 1974. 25 2 1974 17 6 1974 © Geological...
Journal Article
Published: 01 November 2003
Quarterly Journal of Engineering Geology and Hydrogeology (2003) 36 (4): 293–303.
... through which the tunnel was driven contained highly plastic swelling smectite clays which had not been identified in the pre-construction ground investigations. Samples from the tunnel and from elsewhere in the Mercia Mudstone Group were examined in special laboratory tests designed to replicate...
FIGURES | View All (8)
Journal Article
Published: 01 May 2023
Russ. Geol. Geophys. (2023) 64 (5): 582–594.
... (the Minin skerries), Ringnes (the Mona archipelago), Western and Eastern Kamennyi (the Pyasin Bay), Krestovsky (the Yenisei Bay) and Sverdrup. We used the following dating methods: radiocarbon analysis by macro-volume samples ( 14 С), the uranium-thorium method ( 230 Th–U), the method of feldspar-based...
FIGURES | View All (6)
Journal Article
Published: 19 September 2011
Geological Magazine (2012) 149 (1): 67–79.
... Group, has been recently dated using the 40 Ar– 39 Ar method at 61.4 ± 0.4 Ma for the lower units and 59 ± 0.4 Ma for the upper unit (McKenna, 2009 ; Ganerød et al . 2008 ). The eruption of these basalts is close to the Paleocene–Eocene boundary, a period of pronounced warming and a marked change...
Journal Article
Published: 19 July 2013
Geological Magazine (2014) 151 (3): 414–429.
... the Lower Stromness Flagstone Group at Skerry of Ness, Stromness. ...
FIGURES | View All (11)
Journal Article
Published: 01 September 2007
The Journal of Geology (2007) 115 (5): 583–600.
... clast-supported conglomerate and sandstone beds interfinger with backreef carbonates where the reef is closest to land. Across the lagoon 2.5 km eastward, differential erosion between steeply dipping quartzite layers interbedded with softer phyllite resulted in low sea stacks, or skerries. Tabular...
FIGURES | View All (10)
Journal Article
Published: 01 February 1981
Journal of the Geological Society (1981) 138 (1): 1–14.
... of sections 5 sedimentological logs from the Dunrossness coast are discussed (Fig. 1). Log 1 was taken between Blo Geo and Swart Skerry and includes a vertebrate-rich lami- nated carbonate called the Exnaboe Fish Bed. A similar group of facies is shown in Log 2, which describes the sequence from Millbum Geo...
Journal Article
Published: 01 February 1975
Journal of the Geological Society (1975) 131 (1): 48–49.
.... A. & MURRAY, J. W. x97x. Comparisons of modern and Palaeogene foraminiferid distributions and their environmental implications. Mem. Bur. Rech. ggol. min. 79, 87-96. Received 25 February x974; revised typescript received x7 June x974; read at joint meeting of Marine Studies Group and British...
Journal Article
Published: 01 January 2005
Quarterly Journal of Engineering Geology and Hydrogeology (2005) 38 (1): 83–88.
... Harbour Group 133 465 26 373 30 92 17 3.5 2.8 0.7 Holyhead Quartzite Formation 3 3 0 3 0 0 0 1.2 1.2 0.0 Gwna Mélange Formation 61 249 14 183 15 66 12 4.1 3.0 1.1 Church Bay Tuffs and Skerries Grits 13 59 3 45 4 12 2 4.4 3.4 0.9 Central Anglesey...
FIGURES
Journal Article
Published: 01 November 2010
Scottish Journal of Geology (2010) 46 (2): 143–155.
... of Cadbol [NH 891 782]. ( C ) A positively skewed cycle from the Lower Stromness Flagstones of Skerry of Ness, Stromness [HY 247 077], from the northern region of the basin. ( D ) A cycle with an extended positive skew from the Lower Strath Rory Group of Tarrel Bay [NH 900 793] at the southern margin...
FIGURES | View All (8)
Journal Article
Published: 01 August 2006
Quarterly Journal of Engineering Geology and Hydrogeology (2006) 39 (3): 313–320.
...: ( a ) as visualized by Darwin; ( b ) as proved by modern mapping. Subsequent geological mapping confirms many of Darwin's observations. Around Radbourne the total thickness of the marls (Mercia Mudstone Group) does not exceed 150 feet (46 m). Thin beds of sandstone, known as skerries, occupy much of the high...
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Journal Article
Published: 01 August 1979
Journal of the Geological Society (1979) 136 (4): 424–432.
... turbidites, distal turbidites and tufface- ous members such as the Skerries Group, Church Bay Tuffs, Fydlyn Group, Gwyddel Beds and Aber Geirch Phyllites. I broadly agree with that aspect of Barber & Max s interpretaion of N Anglesey which recognizes mklanges separated by a Greywacke Group and with the lower...
Journal Article
Published: 01 January 1984
Journal of the Geological Society (1984) 141 (1): 105–120.
... super-group A Correlation of the Precambrian Rocks in the British Isles 1975 6 52 75 Spec Rep geol Soc London Harris L. D. Harris A. G. De Witt W. Bayer K. C. Evaluation of the southern eastern overthrust belt beneath Blue Ridge—Piedmont Thrust Bull Am Assoc Petrol Geol...