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A palaeoenvironmental interpretation of the Silurian rocks in the Pentland Hills, near Edinburgh, Scotland

Published online by Cambridge University Press:  03 November 2011

Gary Robertson
Gary Robertson
Affiliation:
Mobil North Sea Ltd, Mobil Court, 3 Clements Inn, London WC2, U.K.
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Abstract

Silurian sediments up to 2500 m thick are exposed in the Pentland Hills, SW of Edinburgh. These sediments, the North Esk Group, are here sub-divided into five well-defined formations: the Reservoir Formation, Deerhope Formation, Cock Rig Formation, Wether Law Linn Formation and Henshaw Formation. The Wether Law Linn Formation is further sub-divided into three members. Based on limited palaeontological evidence, the sediments appear to be late Llandovery (crenulata Biozone) to Wenlock in age. The Silurian sediments represent a regressive sequence, passing from offshore submarine-fan turbidite facies, through shallow marine sediments, with an abundant flora and fauna, possibly a barrier complex, to terrestrial red beds of Old Red Sandstone facies. Changing faunal associations in the shallow marine sediments reflect the availability of different substrates. The regression occurred on the southern margin of the Midland Valley graben.

Keywords

fossil associationsNorth Esk Groupregressive sequence
Type
Research Article
Information
Earth and Environmental Science Transactions of The Royal Society of Edinburgh , Volume 80 , Issue 2 , 1989 , pp. 127 - 141
Copyright
Copyright © Royal Society of Edinburgh 1989

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References

Bluck, B. J. 1983. Role of the Midland Valley of Scotland in the Caledonian orogeny. TRANS R SOC EDINBURGH EARTH SCI 74, 119–136.CrossRefGoogle Scholar
Bluck, B. J. 1984. Pre-Carboniferous history of the Midland Valley of Scotland. TRANS R SOC EDINBURGH EARTH SCI 75, 275–295.CrossRefGoogle Scholar
Brower, J. C. 1975. Silurian crinoids from the Pentland Hills, Scotland PALAEONTOLOGY 18, 631–656.Google Scholar
Bull, E. E. 1987. Upper Llandovery dendroid graptolites from the Pentland Hills, Scotland. PALAEONTOLOGY 30, 117–140.Google Scholar
Clarkson, E. N. K., Eldredge, N. & Henry, J.-L. 1977. Some Phacopina (Trilobita) from the Silurian of Scotland. PALAEONTOLOGY 20, 119–142.Google Scholar
Clarkson, E. N. K. & Howells, Y. 1981. Upper Llandovery trilobites from the Pentland Hills, Scotland. PALAEONTOLOGY 24, 507–536.Google Scholar
Cockburn, A. M. 1952. Minor intrusions of the Pentland Hills. TRANS EDINBURGH GEOL SOC 15, 84–99.CrossRefGoogle Scholar
Cocks, L. R. M., Holland, C. H., Richards, R. B. & Strachan, I. 1971. A correlation of Silurian rocks in the British Isles. J GEOL SOC LONDON 127, 103–136.CrossRefGoogle Scholar
Cocks, L. R. M. & Toghill, P. 1973. The biostratigraphy of the Silurian rocks of the Girvan District, Scotland. J GEOL SOC LONDON 129, 209–243.CrossRefGoogle Scholar
Dorning, K. J. 1982. Early Wenlock acritarchs from the Knockgardner and Straiton Grit Formations of Knockgardner, Ayrshire. SCOTT J GEOL 18, 267–273.CrossRefGoogle Scholar
Haswell, G. C. 1865. On the Silurian formation in the Pentland Hills, 1–48. Edinburgh: William P. Nimmo.Google Scholar
Hedberg, H. D. (ed.) 1976 International Stratigraphic Guide. New York: John Wiley & Sons.Google Scholar
Henderson, J. 1880. On recently discovered fossiliferous beds in the Silurian rocks of the Pentland Hills. TRANS EDINBURGH GEOL SOC 3, 353–356.Google Scholar
Henderson, J. & Brown, D. J. 1870. On the Silurian rocks of the Pentland Hills. TRANS EDINBURGH GEOL SOC 1, 266–272.CrossRefGoogle Scholar
Howe, M. P. A. 1982. Upper Llandovery graptolites and stratigraphy of the Northern Oslo Region. Unpublished Ph.D. Thesis, University of Cambridge.Google Scholar
Howell, H. H. & Geikie, A. 1861. The geology of the neighbourhood of Edinburgh, 1st Edn MEM GEOL SURV SCOTLAND.Google Scholar
Howell, D. G. & Normark, W. R. 1982. Submarine fans. In Scholle, & Spearing, (eds), Sandstone Depositional Environments, 365–404. AAPG MEM 31, Wisconsin: George Banta Co.Google Scholar
Kier, P. M. 1973. A new Silurian echinoid genus from Scotland. PALAEONTOLOGY 16, 651–663.Google Scholar
Kinsman, D. J. J. & Park, R. K. 1976. Algal belt and coastal sabkha evolution, Trucial coast, Persian Gulf. In Walter, M. R. (ed.), Stromatolites, 421–433. Amsterdam: Elsevier.Google Scholar
Lamont, A. 1947a. Gala-Tarannon beds in the Pentland Hills, near Edinburgh. GEOL MAG 84, 193–208.Google Scholar
Lamont, A. 1947b. Gala-Tarannon beds in the Pentland Hills, near Edinburgh. GEOL MAG 84, 289–303, 319.CrossRefGoogle Scholar
Lamont, A. 1952. Ecology and correlation of the Pentlandian—a new division of the Silurian System in Scotland. REP 18TH INT GEOL CONGR LONDON 10, 27–32.Google Scholar
Lamont, A. 1955. New lamellibranchs from the Gutterford Burn Flagstones (Gala-Tarannon) of the Pentland Hills, near Edinburgh. PROC R SOC EDINBURGH 65, 271–284.Google Scholar
Laurie, M. 1892. On some eurypterid remains from the upper Silurian rocks of the Pentland Hills. TRANS R SOC EDINBURGH 37, 151–161.CrossRefGoogle Scholar
Laurie, M. 1899. On a Silurian scorpion and some additional eurypterid remains from the Pentland Hills. TRANS R SOC EDINBURGH 39, 575–590.CrossRefGoogle Scholar
Leggett, J. K. 1980. The sedimentological evolution of a lower Palaeozoic accretionary fore-arc in the Southern Uplands of Scotland. SEDIMENTOLOGY 27, 401–417.CrossRefGoogle Scholar
Leggett, J. K., McKerrow, W. S. & Eales, M. H. 1979. The Southern Uplands of Scotland: A Lower Palaeozoic accretionary prism. J GEOL SOC LONDON 136, 755–770.Google Scholar
McGiven, A. 1967. Sedimentation and provenance of post-Valentian conglomerates up to and including the basal conglomerate of the Lower Old Red Sandstone in the Southern parts of the Midland Valley of Scotland. Unpublished Ph.D. Thesis, University of Glasgow.Google Scholar
McKerrow, W. S. 1987. The Southern Uplands controversy. J GEOL SOC LONDON 144, 735–736.Google Scholar
Mutti, E. & Ricci-Lucchi, F. 1972. Le torbiditi de U'Appenine settentrionale: introduzione al' analisi di facies. MEM SOC GEOL ITAL 11, 161–199.Google Scholar
Mutti, E. & Ricci-Lucchi, F. 1975. Turbidite facies and facies associations. In Mutti, E., Parea, G. C., Ricci-Lucchi, F., Sagri, M., Zanzucchi, G., Ghibaude, G. & Iaccarine, S. (eds) Examples of turbidite facies and associations from selected formations of the Northern Appenines, Field trip guidebook A–11, 9th INT SEDIMENTOL CONGR NICE FRANCE, 21–36.Google Scholar
Mykura, W. & Smith, J. D. D. 1962. In Mitchell, G. H. & Mykura, W.The geology of the neighbourhood of Edinburgh, 3rd edn MEM GEOL SURV SCOTLAND 10–22.Google Scholar
Nitecki, M. 1971. Amphispongieae, a new tribe of Palaeozoic Dasycladaceous Algae. FIELDIANA GEOL 23, 11–22.Google Scholar
Norford, B. S. 1973. Lower Silurian species of the trilobite Scotoharpes from Canada and Northern Greenland. BULL GEOL SURV CANADA 222, 8–32.Google Scholar
Peach, B. N. & Horne, J. 1899. The Silurian rocks of Great Britain, 1, Scotland. MEM GEOL SURV.Google Scholar
Robertson, G. 1985. Palaeoenvironmental interpretation of the Silurian rocks of the Pentland Hills. Unpublished Ph.D. Thesis, University of Edinburgh.Google Scholar
Rust, B. R. 1965. The stratigraphy and structure of the Whithorn area of Wigtownshire, Scotland. SCOTT J GEOL 1, 101–133.Google Scholar
Siveter, D. J. 1978. The Silurian. In Bates, R. & Robinson, E. (eds) A stratigraphical index of British Ostracoda. GEOL J, SPEC ISSUE 8, 57–100.Google Scholar
Siveter, D. J. 1980. British Silurian Beyrichiacea (Ostracoda). PALAEONTOGR SOC MONOGR 1, 1–76.Google Scholar
Tipper, J. C. 1974. The Marine Silurian of the North Esk Inlier. Unpublished Ph.D. Thesis, University of Edinburgh.Google Scholar
Tipper, J. C. 1975. Lower Silurian animal communities—three case histories. LETHAIA 8, 287–299.CrossRefGoogle Scholar
Tipper, J. C. 1976. The stratigraphy of the North Esk Inlier, Midlothian. SCOTT J GEOL 12(1), 15–22.Google Scholar
Toghill, P. 1969. Discussion of the terms “Llandovery Series” and “Valentian Series” as time divisions of the Silurian. PROC GEOL SOC LONDON 1651, 235–238.Google Scholar
Walker, K. R. & Mutti, E. 1973. Turbidite facies and facies associations. In Turbidites and deep water sedimentation. SOC ECON PALAEONT MINER, Pacific Section, Short Course, 119–157.Google Scholar
Walton, E. K. 1983. Lower Palaeozoic—Structure and Palaeogeography. In Craig, G. Y. (ed.) Geology of Scotland. Edinburgh: Scottish Academic Press.Google Scholar
Waterston, C. D. 1962. Pagea sturrocki gen. et sp. nov., a new eurypterid from the Old Red Sandstone of Scotland. PALAEONTOLOGY 5, 137–148.Google Scholar
Waterston, C. D. 1979. Problems of functional morphology and classification in stylonurid eurypterids (Chelicerata, Merostomata), with observations on the Scottish Stylonuroidea. TRANS R SOC EDINBURGH 70, 251–322.Google Scholar
Weaver, C. E. 1963. Interpretative value of heavy minerals from bentonites. J SEDIMENT PETROL 33, 343–349.Google Scholar
Westoll, S. 1951. The vertebrate-bearing strata of Scotland. REP 18th INT GEOL CONGR II, 5–21, 26.Google Scholar
Ziegler, A. M. 1970. Geosynclinal development of the British Isles during the Silurian period. J GEOL 78, 445–479.Google Scholar
Ziegler, A. M., Rickards, R. B. & McKerrow, W. S. 1974. Correlation of the Silurian rocks of the British Isles. GEOL SOC AM SPEC PAP 154.Google Scholar