Browsing downloads in "BGS stratigraphical framework and lithodemic scheme reports and charts"

These reports and charts result from co-operation between the BGS Stratigraphy Committee and the Geological Society Stratigraphy Commission with the aim of reviewing the stratigraphical classification for all parts of Great Britain for which modern information is available. Reports have been produced dealing with strata ranging from the Ordovician to the Quaternary in age. In addition there is a proposal for classifying units of intrusive rock (lithodemic scheme), and classifications of tectonometamorphic units and Phanerozoic intrusions in the UK.

01. Quaternary Stratigraphical Chart: Northern Britain
The two Quaternary Stratigraphical Charts for northern and southern Britain present, in total, 29 lithostratigraphical columns for onshore and offshore regions. Columns are scaled against geological time and Marine Isotope Stages allowing assessment of age and duration of units. The nomenclature used is formally defined in the BGS Stratigraphical Framework Reports for the onshore Quaternary (RR/10/03) and offshore Quaternary (RR/11/03) and the BGS.
[Adobe Acrobat PDF 210 KB]
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02. Quaternary Stratigraphical Chart: Southern Britain
The two Quaternary Stratigraphical Charts for northern and southern Britain present, in total, 29 lithostratigraphical columns for onshore and offshore regions. Columns are scaled against geological time and Marine Isotope Stages allowing assessment of age and duration of units. The nomenclature used is formally defined in the BGS Stratigraphical Framework Reports for the onshore Quaternary (RR/10/03) and offshore Quaternary (RR/11/03) and the BGS.
[Adobe Acrobat PDF 209 KB]
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03. Quaternary and Neogene overview of Great Britain
This report results from a study by the British Geological Survey (BGS) to rationalise the Quaternary lithostratigraphy of Great Britain (England, Scotland and Wales). The report proposes a new lithostratigraphical framework which utilises the full hierarchy of the stratigraphical code, that is supergroup, group, subgroup and formation (together with smaller units) for the correlation of the onshore Quaternary and Neogene deposits of Great Britain.
[Adobe Acrobat PDF 2.86 MB]
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04. Quaternary and Neogene deposits of Great Britain and the Isle of Man
The report utilises the new lithostratigraphical framework, published in the Overview Report which employs the full hierarchy of the stratigraphical code for the correlation of the onshore Quaternary deposits of Great Britain. This report defines the groups, subgroups and main formations (the principal mapping units). Important members and beds are also described.
[Adobe Acrobat PDF 10.5 MB]
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05. Quaternary of the continental shelf
This report aims to rationalise the Quaternary stratigraphy of the United Kingdom continental shelf. Formations represent the principal mapping units but the delineation and definition of a series of groups provides the basis for regional correlation. We hope that this stratigraphical nomenclature will have the widest acceptance within the scientific community and industry.
[Adobe Acrobat PDF 3.49 MB]
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06. Palaeogene successions of the London Basin, UK
This report provides a summary of the lithostratigraphical scheme proposed by the BGS Stratigraphical Framework Committee that aims to describe and rationalise group, formation and member nomenclature for the Palaeogene of the London Basin, southern England. It provides detailed descriptions for units in the onshore area of the London Basin and adjacent parts of East Anglia. Existing names are used except where unit names have not previously existed or are unsatisfactory.
[Adobe Acrobat PDF 908 KB]
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07. Chalk of England and Scotland plus statements on Northern Ireland and Offshore UK
This document is the formal statement on the stratigraphy of the Chalk Group as adopted by the British Geological Survey and ratified by the BGS Stratigraphical Framework Committee and the Stratigraphy Commission of the Geological Society. It contains a review of the nomenclature currently used in BGS publications and maps and makes proposals for a new scheme.
[Adobe Acrobat PDF 2.67 MB]
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08. Lower Cretaceous of England
This report describes the Lower Cretaceous strata of England appearing on maps and major texts from the British Geological Survey and seeks to clarify the terminology, relationships and distribution of the various units. The report considers the successions within the Wessex Basin (including the Wealden Basin and Vectian Basin ), the East Midlands Shelf covering Lincolnshire, South Yorkshire and Norfolk, and the Cleveland–Yorkshire Basins.
[Adobe Acrobat PDF 3.39 MB]
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09. Middle Jurassic of Great Britain and its adjoining continental shelf
The report aims to rationalise group and formation nomenclature for the Middle Jurassic of the entire onshore and offshore areas of Great Britain. It provides detailed descriptions for the onshore area of Great Britain covering southern England, the Cleveland Basin, the Moray Firth Basin (onshore) and the Hebrides Basin. It also gives outline information for the offshore English Channel, Western Approaches and St George's Channel - Cardigan Bay, and the UK area of the North Sea.
[Adobe Acrobat PDF 5.45 MB]
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10. Lower Jurassic of England and Wales
This report introduces a lithostratigraphical framework to formation level for the Early Jurassic, predominantly argillaceous, succession of England and Wales, traditionally known as the Lias. The outcrop has been divided into four depositional areas — the Cleveland Basin, the East Midlands Shelf, the Worcester Basin (plus the adjoining Bristol–Radstock Shelf) and the Wessex Basin.
[Adobe Acrobat PDF 1.60 MB]
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11. Mercia Mudstone Group (Triassic) of England and Wales
This Research Report presents a reviewed and revised lithostratigraphical nomenclature for the Mercia Mudstone Group (Triassic). Irrespective of existing nomenclature, five units that were in stratigraphical continuity prior to any subsequent tectonism or erosion are identified as constituting the group. These are, in upward succession, the Tarporley Siltstone Formation, Sidmouth Mudstone Formation, Arden Sandstone Formation, Branscombe Mudstone Formation and Blue Anchor Formation.
[Adobe Acrobat PDF 1.88 MB]
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12. Sherwood Sandstone Group of England, Wales and south-west Scotland
This Research Report presents a reviewed and revised lithostratigraphical nomenclature for the Sherwood Sandstone Group (?latest Permian to Mid Triassic).The SSG is composed mainly of brown, red, buff, greenish grey and yellow sandstones of fluvial or aeolian origin. Three options were considered and the ‘clean slate’ option chosen. The constituent formation names proposed are: Helsby Sandstone, Wilmslow Sandstone, Chester, Moira, and Hopwas Breccia formations.
[Adobe Acrobat PDF 863 KB]
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13. Westphalian to Early Permian red beds of the Pennine Basin
The lithostratigraphy of the Westphalian to Early Permian rocks of the Pennine Basin has been reviewed. Grey coal-bearing rocks pass up into successions containing primary red beds, and two lithostratigraphic units are now defined to recognise this fundamental division namely the Coal Measures Group (below) and the Warwickshire Group (above). The base of the Coal Measures Group is unchanged from earlier classifications, and the traditional divisions (Lower, Middle and Upper) are retained as formations.
[Adobe Acrobat PDF 2.75 MB]
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14. Carboniferous overview of Great Britain (Onshore)
This report provides a summary of a lithostratigraphical scheme that aims to rationalise group and formation nomenclature for the Carboniferous of the entire onshore area of Great Britain.
[Adobe Acrobat PDF 5.42 MB]
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15. Carboniferous of northern Great Britain
This report summarises the SFC lithostratigraphical scheme for onshore Carboniferous successions of northern Great Britain. The first part summarises the structural and palaeogeographical setting; the second describes the key techniques of correlation of successions; and the third part indicates the principle for the development of the new lithostratigraphical scheme. The fourth and largest part of the report provides a full description of the group, formation and member framework.
[Adobe Acrobat PDF 6.34 MB]
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16. Carboniferous of southern Great Britain
This report summarises the SFC lithostratigraphical scheme for onshore Carboniferous successions of southern Great Britain and includes the structural and palaeogeographical setting; the key techniques of correlation; the main principles for the development of the new scheme; and a full description of the group and formation framework for each of main provinces.
[Adobe Acrobat PDF 9.24 MB]
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17. Carboniferous of the Midland Valley of Scotland
The lithostratigraphy of the Carboniferous rocks if the Midland Valley of Scotland has been extensively reviewed by the authors of this report who built on the foundations laid by the classification of the Lower Carboniferous erected by Paterson and Hall (1986), Browne (1986) and Chisholm et al. (1989). The Inverclyde, Strathclyde, Clackmannan and Coal Measures sedimentary groups are recognised throughout the region along with the component formations of the Clackmannan and Coal Measures groups.
[Adobe Acrobat PDF 1.87 MB]
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18. Devonian (Old Red Sandstone) rocks of Scotland
The lithostratigraphy of the Old Red Sandstone of the Southern Highlands, Midland Valley of Scotland and the Southern Uplands Terrane has been reviewed. Before this there were over 100 formations and members in the Lower Old Red Sandstone. The new term Lanark Group includes all late Silurian to Devonian formations in the Lanark Basin.
[Adobe Acrobat PDF 3.06 MB]
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19. Ordovician and Silurian sedimentary strata
This report is an overview of the Ordovician and Silurian sedimentary strata of the Lake District and nearby inliers of Cross Fell, Cautley, Dent, Craven and Teesdale. The Isle of Man is also considered. Excluded are the volcanic, volcaniclastic and intrusive igneous rocks (Millward, 2004). The framework results from modern BGS and university mapping during the period 19812005. It summarises the current lithostratigraphy and resolves some of the remaining ambiguities.
[Adobe Acrobat PDF 10.7 MB]
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20. Lake District volcanic and intrusive rocks
This Research Report discusses the lithostratigraphical framework of all the volcanic and intrusive rocks in the English Lake District, and their correlatives in the nearby Cross Fell and Teesdale inliers. The volcanic rocks in the Lake District are represented by two main lithostratigraphical units, the Eycott and Borrowdale volcanic groups.
[Adobe Acrobat PDF 1.42 MB]
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21. Ordovician of Snowdonia and the Lleyn Peninsula
In this report the lower to middle Ordovician (Tremadoc to Caradoc) rocks in North Wales, but excluding Anglesey and the Berwyn Hills, are referred to six volcanic groups (Rhobell, Aran, Llewelyn, Snowdon, Upper Lodge and Llanbedrog) and two sedimentary groups (Mawddach and Ogwen) with the aim of providing a framework for future work in the area.
[Adobe Acrobat PDF 834 KB]
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22. Tectonometamorphic and mixed-class units
This report sets out proposals for classifying and naming all types of lithodemic unit other than intrusions. Twelve types of tectonometamorphic unit are placed in parallel parentchild chains that straddle the same six ranks (Rank 1 to Rank 6). Each of these three hierarchical chains represents a distinct class of mappable unit. A glossary of the terms relevant to these proposals, forms an important part of this document.
[Adobe Acrobat PDF 515 KB]
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23. Lithodemic units: Proposals for classifying units of intrusive rock
This report sets out a framework and terminology for classifying and naming lithodemic units composed entirely or predominantly of intrusive rock. It has been written with the geology of the UK in mind, but the principles and definitions recommended here should be applicable globally. The report anticipates a second phase of work, in which a BGS lithodemic classification for onshore intrusions in the UK will be constructed using the recommendations set out here.
[Adobe Acrobat PDF 594 KB]
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24. Phanerozoic intrusions in the UK
This report classifies onshore igneous intrusions emplaced during the Phanerozoic, a step towards a comprehensive, unified classification of lithodemic units to complement the BGS Stratigraphical Framework reports. The structure follows the proposals of Gillespie et al. (2008) with a hierarchical parent-child association spanning six formal ranks. A further eight types classify mapped units with a 'mixed' character. Appendices 2, 3, and 4 are available as separate pdfs (below).
[Adobe Acrobat PDF 8.66 MB]
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25. Phanerozoic intrusions in the UK - Appendix 2, Caledonian Supersuite
[Adobe Acrobat PDF 9.21 MB]
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26. Phanerozoic intrusions in the UK - Appendix 3, Variscan Supersuite
[Adobe Acrobat PDF 9.58 MB]
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27. Phanerozoic intrusions in the UK - Appendix 4, Atlantean Supersuite
[Adobe Acrobat PDF 8.90 MB]
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