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Integrated Upper Ordovician Graptolite–Chitinozoan Biostratigraphy of the Cardigan and Whitland Areas, Southwest Wales
Geol. Mag. 145 (2), 2008, pp. 199–214. c 2007 Cambridge University Press 199 doi:10.1017/S0016756807004232 First published online 17 December 2007 Printed in the United Kingdom Integrated Upper Ordovician graptolite–chitinozoan biostratigraphy of the Cardigan and Whitland areas, southwest Wales THIJS R. A. VANDENBROUCKE∗†, MARK WILLIAMS‡, JAN A. ZALASIEWICZ‡, JEREMY R. DAVIES§ & RICHARD A. WATERS¶ ∗Research Unit Palaeontology, Ghent University, Krijgslaan 281/S8, 9000 Ghent, Belgium ‡Department of Geology, University of Leicester, University Road, Leicester LE1 7RH, UK §British Geological Survey, Kingsley Dunham Centre, Keyworth, Nottingham NG12 5GG, UK ¶Department of Geology, National Museum of Wales, Cathays Park, Cardiff CF10 3NP, UK (Received 26 January 2007; accepted 26 June 2007) Abstract – To help calibrate the emerging Upper Ordovician chitinozoan biozonation with the graptolite biozonation in the Anglo-Welsh, historical type basin, the graptolite-bearing Caradoc– Ashgill successions between Fishguard and Cardigan, and at Whitland, SW Wales, have been collected for chitinozoans. In the Cardigan district, finds of Armoricochitina reticulifera within strata referred to the clingani graptolite Biozone (morrisi Subzone), together with accessory species, indicate the Fungochitina spinifera chitinozoan Biozone, known from several Ordovician sections in northern England that span the base of the Ashgill Series. Tanuchitina ?bergstroemi, eponymous of the succeeding chitinozoan biozone, has tentatively been recovered from strata of Pleurograptus linearis graptolite Biozone age in the Cardigan area. The T. ?bergstroemi Biozone can also be correlated with the type Ashgill Series of northern England. Chitinozoans suggest that the widespread Welsh Basin anoxic–oxic transition at the base of the Nantmel Mudstones Formation in Wales, traditionally equated with the Caradoc–Ashgill boundary, is of Cautleyan (or younger Ashgill) age in the Cardigan area. -
Researching Stonehenge: Theories Past and Present
Parker Pearson, M 2013 Researching Stonehenge: Theories Past and Present. Archaeology International, No. 16 (2012-2013): 72-83, DOI: http://dx.doi.org/10.5334/ai.1601 ARTICLE Researching Stonehenge: Theories Past and Present Mike Parker Pearson* Over the years archaeologists connected with the Institute of Archaeology and UCL have made substantial contributions to the study of Stonehenge, the most enigmatic of all the prehistoric stone circles in Britain. Two of the early researchers were Petrie and Childe. More recently, colleagues in UCL’s Anthropology department – Barbara Bender and Chris Tilley – have also studied and written about the monument in its landscape. Mike Parker Pearson, who joined the Institute in 2012, has been leading a 10-year-long research programme on Stonehenge and, in this paper, he outlines the history and cur- rent state of research. Petrie and Childe on Stonehenge William Flinders Petrie (Fig. 1) worked on Stonehenge between 1874 and 1880, publishing the first accurate plan of the famous stones as a young man yet to start his career in Egypt. His numbering system of the monument’s many sarsens and blue- stones is still used to this day, and his slim book, Stonehenge: Plans, Descriptions, and Theories, sets out theories and observations that were innovative and insightful. Denied the opportunity of excavating Stonehenge, Petrie had relatively little to go on in terms of excavated evidence – the previous dig- gings had yielded few prehistoric finds other than antler picks – but he suggested that four theories could be considered indi- vidually or in combination for explaining Stonehenge’s purpose: sepulchral, religious, astronomical and monumental. -
Mineral Reconnaissance Programme Report
_..._ Natural Environment Research Council -2 Institute of Geological Sciences - -- Mineral Reconnaissance Programme Report c- - _.a - A report prepared for the Department of Industry -- This report relates to work carried out by the British Geological Survey.on behalf of the Department of Trade I-- and Industry. The information contained herein must not be published without reference to the Director, British Geological Survey. I- 0. Ostle Programme Manager British Geological Survey Keyworth ._ Nottingham NG12 5GG I No. 72 I A geochemical drainage survey of the Preseli Hills, south-west Dyfed, Wales I D I_ I BRITISH GEOLOGICAL SURVEY Natural Environment Research Council I Mineral Reconnaissance Programme Report No. 72 A geochemical drainage survey of the I Preseli Hills, south-west Dyfed, Wales Geochemistry I D. G. Cameron, BSc I D. C. Cooper, BSc, PhD Geology I P. M. Allen, BSc, PhD Mneralog y I H. W. Haslam, MA, PhD, MIMM $5 NERC copyright 1984 I London 1984 A report prepared for the Department of Trade and Industry Mineral Reconnaissance Programme Reports 58 Investigation of small intrusions in southern Scotland 31 Geophysical investigations in the 59 Stratabound arsenic and vein antimony Closehouse-Lunedale area mineralisation in Silurian greywackes at Glendinning, south Scotland 32 Investigations at Polyphant, near Launceston, Cornwall 60 Mineral investigations at Carrock Fell, Cumbria. Part 2 -Geochemical investigations 33 Mineral investigations at Carrock Fell, Cumbria. Part 1 -Geophysical survey 61 Mineral reconnaissance at the -
Protected Landscapes: the United Kingdom Experience
.,•* \?/>i The United Kingdom Expenence Department of the COUNTRYSIDE COMMISSION COMMISSION ENVIRONMENT FOR SCOTLAND NofChern ireianc •'; <- *. '•ri U M.r. , '^M :a'- ;i^'vV r*^- ^=^l\i \6-^S PROTECTED LANDSCAPES The United Kingdom Experience Digitized by the Internet Archive in 2010 with funding from UNEP-WCIVIC, Cambridge http://www.archive.org/details/protectedlandsca87poor PROTECTED LANDSCAPES The United Kingdom Experience Prepared by Duncan and Judy Poore for the Countryside Commission Countryside Commission for Scotland Department of the Environment for Northern Ireland and the International Union for Conservation of Nature and Natural Resources Published for the International Symposium on Protected Landscapes Lake District, United Kingdom 5-10 October 1987 * Published in 1987 as a contribution to ^^ \ the European Year of the Environment * W^O * and the Council of Europe's Campaign for the Countryside by Countryside Commission, Countryside Commission for Scotland, Department of the Environment for Northern Ireland and the International Union for Conservation of Nature and Natural Resources © 1987 International Union for Conservation of Nature and Natural Resources Avenue du Mont-Blanc, CH-1196 Gland, Switzerland Additional copies available from: Countryside Commission Publications Despatch Department 19/23 Albert Road Manchester M19 2EQ, UK Price: £6.50 This publication is a companion volume to Protected Landscapes: Experience around the World to be published by the International Union for Conservation of Nature and Natural Resources, -
A Perambulation of the Forest of Dartmoor Encircling the High Moor, This Historic Boundary Makes an Outstanding Walk
OUT AND ABOUT A Perambulation of the Forest of Dartmoor Encircling the high moor, this historic boundary makes an outstanding walk. Deborah Martin follows the trail of 12 medieval knights PHOTOGRAPHS FELI ARRANZ-FENLON, GEORGE COLES & DEBORAH MARTIN Historical Background The Perambulation is probably the oldest Our Walk of Dartmoor’s historical routes. It marks In May 2010 a group of us from the the boundary of the land that belonged Ramblers’ Moorland Group walked the to the Crown and was known as a forest Perambulation over three days with overnight because it comprised the King’s hunting stops. Doing it as a continuous walk has ground. Though Dartmoor Forest the advantage of gaining a perspective on originally belonged to the King, in 1337 the whole route, of ‘joining up the dots’ Edward III granted it to the Black Prince of the signifi cant features that mark out who was also Duke of Cornwall and it has the boundary. Though the knights of 1240 remained part of the Duchy of Cornwall ever since. started at Cosdon, we opted to begin at The Forest lies within the parish of Lydford and adjoins 21 other Dartmeet for practical reasons. May meant parishes, so there are numerous boundary stones around its long daylight hours – but would the weather borders. In order to mark out the line of the boundary various be kind? We knew there would be some Perambulations have taken place over the centuries, the earliest challenging terrain underfoot and numerous one recorded being in 1240. In that year the reigning King, Henry rivers to cross, so hopes were pinned on a III, despatched 12 of his knights to ride on horseback around the dry, clear spell. -
Scheduling Enhancement Project 2011: Prehistoric Sites Fieldwork – Pembrokeshire Additional Sites
SCHEDULING ENHANCEMENT PROJECT 2011: PREHISTORIC SITES FIELDWORK – PEMBROKESHIRE ADDITIONAL SITES Detail of balanced stones – part of enclosure PRN 100702 situated on Banc Llwydlos, Mynydd Preseli, recorded for the first time during the 2011 fieldwork. Prepared by Dyfed Archaeological Trust For CADW DYFED ARCHAEOLOGICAL TRUST RHIF YR ADRODDIAD / REPORT NO. 2012/6 RHIF Y PROSIECT / PROJECT RECORD NO. 100689 Ionawr 2012 January 2012 SCHEDULING ENHANCEMENT PROJECT 2011: PREHISTORIC SITES FIELDWORK – PEMBROKESHIRE ADDITIONALGan / By SITES Fran Murphy & Hubert Wilson Paratowyd yr adroddiad yma at ddefnydd y cwsmer yn unig. Ni dderbynnir cyfrifoldeb gan Ymddiriedolaeth Archaeolegol Dyfed Cyf am ei ddefnyddio gan unrhyw berson na phersonau eraill a fydd yn ei ddarllen neu ddibynnu ar y gwybodaeth y mae’n ei gynnwys The report has been prepared for the specific use of the client. Dyfed Archaeological Trust Limited can accept no responsibility for its use by any other person or persons who may read it or rely on the information it contains. Ymddiriedolaeth Archaeolegol Dyfed Cyf Dyfed Archaeological Trust Limited Neuadd y Sir, Stryd Caerfyrddin, Llandeilo, Sir The Shire Hall, Carmarthen Street, Llandeilo, Gaerfyrddin SA19 6AF Carmarthenshire SA19 6AF Ffon: Ymholiadau Cyffredinol 01558 823121 Tel: General Enquiries 01558 823121 Adran Rheoli Treftadaeth 01558 823131 Heritage Management Section 01558 823131 Ffacs: 01558 823133 Fax: 01558 823133 Ebost: [email protected] Email: [email protected] Gwefan: www.archaeolegdyfed.org.uk Website: www.dyfedarchaeology.org.uk Scheduling Enhancement Project 2011: Prehistoric Fieldwork– Pembrokeshire Additional Sites CONTENTS SUMMARY 1 INTRODUCTION 2 PROJECT AIMS AND OBJECTIVES 3 METHODOLOGY 4 Figure 1: Map of Pembrokeshire, showing the location 5 of sites visited during the project. -
Edinburgh Geologist No. 31. Autumn 1998
The Edinburgh Geologist Magazina of tho Edinburgh Gaological Soclaly Issue No. 31 Autumn 1998 Incorporating the Proceedings of the Edinburgh Geological Society for the 163rd Session 1996·1997 THE EDINBURGH GEOLOGIST Issue No. 31 Autumn 1998 Cover Illustration The cover illustration shows a drawing of Hemiarges iflghami, a trilobite from the Ordovician Stinchar Limestone ncar Girvan. This species lived along the coast of Laurentia, but found Avalonia a bit on the cool side. (see article by Phil SlOne, 'The Geology of Devolution' on page 8) The drawing is taken from a paper by R P Tripp (Pa laeolltology, 1979, Vol. 22, 339-361) and is reproduced by kind permission of the Palaeontological Association. Acknowledgements Publication of THE EDINBURGH GEOWGIST is supported by grants from the Peach and Horne Memorial Fund and the Sime Bequest Published October 1998 by The Edinburgh Geological Society Editor Alan Fyfe British Geological Survey Murchison Hou se Edinburgh EH93LA ISSN 0265-7244 Price £ 1.50 net Editorial by Alan Fyfc It is my pleasure to have been appointed as the editor of THE EDINBURGH GEOLOGIST and to welcome you to the thirty-first edition. I follow a long line of illustrious editors and hope that I am able to maintain the standard of the publication. My thanks are due to the outgoing editor, Andrew Highton for filling me in on the pitfalls and helping to get me started. This issue sees a slightly altered format, though the changes are largely cosmetic and I have attempted to maintain the general look and feel that has evolved over the years. -
The Dalradian Rocks of the North-East Grampian Highlands of Scotland
Revised Manuscript 8/7/12 Click here to view linked References 1 2 3 4 5 The Dalradian rocks of the north-east Grampian 6 7 Highlands of Scotland 8 9 D. Stephenson, J.R. Mendum, D.J. Fettes, C.G. Smith, D. Gould, 10 11 P.W.G. Tanner and R.A. Smith 12 13 * David Stephenson British Geological Survey, Murchison House, 14 West Mains Road, Edinburgh EH9 3LA. 15 [email protected] 16 0131 650 0323 17 John R. Mendum British Geological Survey, Murchison House, West 18 Mains Road, Edinburgh EH9 3LA. 19 Douglas J. Fettes British Geological Survey, Murchison House, West 20 Mains Road, Edinburgh EH9 3LA. 21 C. Graham Smith Border Geo-Science, 1 Caplaw Way, Penicuik, 22 Midlothian EH26 9JE; formerly British Geological Survey, Edinburgh. 23 David Gould formerly British Geological Survey, Edinburgh. 24 P.W. Geoff Tanner Department of Geographical and Earth Sciences, 25 University of Glasgow, Gregory Building, Lilybank Gardens, Glasgow 26 27 G12 8QQ. 28 Richard A. Smith formerly British Geological Survey, Edinburgh. 29 30 * Corresponding author 31 32 Keywords: 33 Geological Conservation Review 34 North-east Grampian Highlands 35 Dalradian Supergroup 36 Lithostratigraphy 37 Structural geology 38 Metamorphism 39 40 41 ABSTRACT 42 43 The North-east Grampian Highlands, as described here, are bounded 44 to the north-west by the Grampian Group outcrop of the Northern 45 Grampian Highlands and to the south by the Southern Highland Group 46 outcrop in the Highland Border region. The Dalradian succession 47 therefore encompasses the whole of the Appin and Argyll groups, but 48 also includes an extensive outlier of Southern Highland Group 49 strata in the north of the region. -
Archaeological and Geochemical Investigation of Flint Sources In
Archaeological and geochemical investigation of flint sources in Britain and Ireland By Seosaimhín Áine Bradley A thesis submitted in partial fulfilment for the requirements of the degree of Doctor of Philosophy at the University of Central Lancashire MARCH 2017 1 ABSTRACT This study investigates the archaeological use of flint in Britain and Ireland from the Mesolithic to the Bronze Age through geochemical analysis of flint samples obtained from the major areas of chalk geology within these islands (Northern, Southern, Transitional, and Northern Ireland), and provenancing of artefactual assemblages. Recent approaches to provenancing flint have demonstrated that this is indeed possible, however this approach encompasses a larger study area and provides a comparison of two methodologies, one destructive (acid digestion ICP-MS) and one non-destructive (pXRF). Acid digestion ICP-MS and pXRF are capable of detecting a range of elements in a given sample, although they each have specific advantages and disadvantages when applied to archaeological material. There are three main research questions that are addressed in this thesis: ● Determine geochemical composition of flint samples from primary chalk outcrops; ● Assess differences between flint from different chalk provinces; ● Compare acid digestion ICP-MS and pXRF in achieving these objectives. The results indicate that flint from the major areas of chalk geology in Britain and Ireland can be distinguished using the methodologies stated above. There are some difficulties in distinguishing between the Southern and Northern Ireland chalk province flint samples, however the samples from the Northern chalk province are very well differentiated. Archaeological assemblages chosen from throughout the study area and from a wide chronological span were sampled using pXRF and subjected to statistical analysis. -
Castell Henllys Interpretation Plan April 2013
Castell Henllys Interpretation Plan Pembrokeshire Coast National Park Authority Red Kite Environment Touchstone Heritage Management Consultants Anglezarke Dixon Associates April 2013 Castell Henllys Interpretation Plan ______________________________________________ Pembrokeshire Coast National Park Authority In association with Red Kite Environment Pearcroft Pearcroft Road Stonehouse Gloucestershire GL10 2JY Tel: 01453 822013 Fax: 01453 791969 Email: [email protected] www.redkite-environment.co.uk Castell Henllys Interpretation Plan Contents Contents.................................................................................................... i Foreword ..................................................................................................iii Executive summary.................................................................................. v 1 Introduction............................................................................................ 1 1.1 Background ....................................................................................................................2 1.2 The ‘Origins’ project........................................................................................................3 2 Setting the Scene.................................................................................. 4 2.1 Historical contexts ..........................................................................................................5 2.2 A prehistory hub .............................................................................................................6 -
Ages of Detrital Zircons (U/Pb, LA-ICP-MS) from the Latest
Precambrian Research 244 (2014) 288–305 Contents lists available at ScienceDirect Precambrian Research jo urnal homepage: www.elsevier.com/locate/precamres Ages of detrital zircons (U/Pb, LA-ICP-MS) from the Latest Neoproterozoic–Middle Cambrian(?) Asha Group and Early Devonian Takaty Formation, the Southwestern Urals: A test of an Australia-Baltica connection within Rodinia a,∗ b c Nikolay B. Kuznetsov , Joseph G. Meert , Tatiana V. Romanyuk a Geological Institute, Russian Academy of Sciences, Pyzhevsky Lane, 7, Moscow 119017, Russia b Department of Geological Sciences, University of Florida, 355 Williamson Hall, Gainesville, FL 32611, USA c Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, B. Gruzinskaya ul. 10, Moscow 123810, Russia a r t i c l e i n f o a b s t r a c t Article history: A study of U-Pb ages on detrital zircons derived from sedimentary sequences in the western flank of Received 5 February 2013 Urals (para-autochthonous or autochthonous with Baltica) was undertaken in order to ascertain/test Received in revised form source models and paleogeography of the region in the Neoproterozoic. Samples were collected from the 16 September 2013 Ediacaran-Cambrian(?) age Asha Group (Basu and Kukkarauk Formations) and the Early Devonian-aged Accepted 18 September 2013 Takaty Formation. Available online 19 October 2013 Ages of detrital zircons within the Basu Formation fall within the interval 2900–700 Ma; from the Kukkarauk Formation from 3200 to 620 Ma. Ages of detrital zircons from the Devonian age Takaty For- Keywords: Australia mation are confined to the Paleoproterozoic and Archean (3050–1850 Ma). -
Architecture and Meaning in the Structure of Stonehenge, Wiltshire, UK Timothy Darvill
Houses of the Holy: architecture and meaning in the structure of Stonehenge, Wiltshire, UK Timothy Darvill Timothy Darvill is Professor of Archaeology in the Department of Archaeology, Anthropology and Forensic Science, Bournemouth University, UK. His research interests lie in the Neolithic of Northwest Europe and in archaeological resource management, and he has carried out fieldwork in Germany, Russia, Malta, England, Wales, and the Isle of Man. In 2008, together with Geoff Wainwright, he undertook excavations inside the stone circles at Stonehenge as part of ongoing research into the links between Stonehenge and the sources of the Bluestones in the Preseli Hills of southwest Wales. He is a member of the Editorial Advisory Board of Time & Mind. [email protected]. Abstract Stonehenge in central southern England is internationally known. Recent re-evaluations of its date and construction sequence provides an opportunity to review the meaning and purpose of key structural components. Here it is argued that the central stone structures did not have a single purpose but rather embody a series of symbolic representations. During the early third millennium this included a square-in- circle motif representing a sacred house or ‘big house’ edged by the five Sarsen Trilithons. During the late third millennium BC, as house styles changed, some of the stones were re-arranged to form a central oval setting that perpetuated the idea of the a sacred dwelling. The Sarsen Circle may have embodied a time- reckoning system based on the lunar month. From about 2500 BC more than 80 bluestones were brought to the site from sources in the Preseli Hills of west Wales about 220km distant.