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Geology of the Yorkshire Coast 4. Staithes
05/03/2013 Geology of the Yorkshire Coast Dr Liam Herringshaw - [email protected] 4. Staithes – of Sand and Iron Early Jurassic Staithes Sandstone Formation Cleveland Ironstone Formation 1 05/03/2013 Staithes to Old Nab Simplified cliff section Rocks get younger towards south and east: RMF-SSF-CIF-WMF 2 05/03/2013 Staithes Sandstone Formation •Early Jurassic: Middle Pliensbachian Key features Sandstones with cross-stratification Burrowed siltstones 3 05/03/2013 Hummocky cross-stratification Fine-grained storm deposits 4 05/03/2013 Burrowed siltstones •After each storm, organic-rich silts deposited in quieter conditions Cleveland Ironstone Formation Transition from SSF to CIF, Penny Nab 5 05/03/2013 Oolitic ironstones Cleveland Ironstone Formation Modern oolites Warm, wave-agitated waters 6 05/03/2013 Stratigraphy Fossils 7 05/03/2013 Old Nab Ironstone burrows 8 05/03/2013 Siderite – iron carbonate Grows in sediment Needs low oxygen, low-sulphide conditions with iron and calcium Normally grey; turns red when oxidized Cleveland ironstone environment Fossils = marine conditions Ooids = high energy environment Primary iron-rich ooids = iron-rich waters Burrow scratches = firm sediments Shallow sea, wave-agitated, lots of runoff from land (with iron-rich soils?) 9 05/03/2013 Jet-powered Whitby Early Jurassic Whitby Mudstone Formation Grey Shales Black Shales Alum Shales Whitby Mudstone Formation 10 05/03/2013 Whitby Mudstone Formation Late Early Jurassic – Toarcian 5 subdivisions, mostly muddy Common features - sediments Finely laminated, -
And Early Jurassic Sediments, and Patterns of the Triassic-Jurassic
and Early Jurassic sediments, and patterns of the Triassic-Jurassic PAUL E. OLSEN AND tetrapod transition HANS-DIETER SUES Introduction parent answer was that the supposed mass extinc- The Late Triassic-Early Jurassic boundary is fre- tions in the tetrapod record were largely an artifact quently cited as one of the thirteen or so episodes of incorrect or questionable biostratigraphic corre- of major extinctions that punctuate Phanerozoic his- lations. On reexamining the problem, we have come tory (Colbert 1958; Newell 1967; Hallam 1981; Raup to realize that the kinds of patterns revealed by look- and Sepkoski 1982, 1984). These times of apparent ing at the change in taxonomic composition through decimation stand out as one class of the great events time also profoundly depend on the taxonomic levels in the history of life. and the sampling intervals examined. We address Renewed interest in the pattern of mass ex- those problems in this chapter. We have now found tinctions through time has stimulated novel and com- that there does indeed appear to be some sort of prehensive attempts to relate these patterns to other extinction event, but it cannot be examined at the terrestrial and extraterrestrial phenomena (see usual coarse levels of resolution. It requires new fine- Chapter 24). The Triassic-Jurassic boundary takes scaled documentation of specific faunal and floral on special significance in this light. First, the faunal transitions. transitions have been cited as even greater in mag- Stratigraphic correlation of geographically dis- nitude than those of the Cretaceous or the Permian junct rocks and assemblages predetermines our per- (Colbert 1958; Hallam 1981; see also Chapter 24). -
STRATEGIC STONE STUDY a Building Stone Atlas of NORTH-EAST YORKSHIRE
STRATEGIC STONE STUDY A Building Stone Atlas of NORTH-EAST YORKSHIRE Published May 2012 Derived from BGS digital geological mapping at 1:625,000 scale, British Geological Survey © NE Yorkshire Bedrock Geology NERC. All rights reserved Click on this link to visit NE Yorkshire’s geology and their contribution to known building stones, stone structures and building stone quarries (Opens in new window http://maps.bgs.ac.uk/buildingstone?County=North-EastYorkshire ) NE Yorkshire Strategic Stone Study 1 Stratigraphical column of the Permian (in part),Triassic, Jurassic and Cretaceous rocks and Quaternary deposits in North-east Yorkshire showing the common buildings stones (bold) and alternative stone names. The oldest rocks are at the bottom of the table. Gp., Group; Fm., Formation; Mbr., Member. North East Yorkshire: Permian, Triassic, Jurassic, Cretaceous & Quaternary Building Stones PERIOD GROUP FORMATION MEMBER Common/alternative Stone Name Calcareous Tufa; Aquarium Stone Till (Boulder Clay) and Fluvio-glacial sand Quaternary and gravel; boulders Tertiary Cleveland Dyke Whinstone Flamborough Chalk Fm. Flamborough Chalk; White Chalk Burnham Chalk Fm. Burnham Chalk; White chalk Chalk Group Welton ChalkFm. Cretaceous Ferriby Chalk Fm. Grey chalk ungrouped Hunstanton Fm. Speeton Clay Kimmeridge Clay ungrouped Ampthill Clay North Grimston Upper Calcareous Grit Upper Calcareous Grit Cementstone North Grimston Cementstone Formation Coral Rag Member Coral Rag Malton Oolite Member Malton Oolite; Hildenley Limestone; Corallian Hildenley Stone Group Middle Calcareous Grit Middle Calcareous Grit Coralline Oolite Formation Member Birdsall Calcareous Grit Birdsall Calcareous Grit Member Hambleton Oolite Hambleton Oolite Member Yedmandale Member Passage Beds; Wallstone Lower Calcareous Grit Fm. Lower Calcareous Grit Oxford Clay Fm. -
TMS-01 04 Butler (To D) 14/10/05 10:42 Am Page 43
TMS-01 04 Butler (to_d) 14/10/05 10:42 am Page 43 The Ravenscar Group: a coeval analogue for the Middle Jurassic reservoirs of the North Sea and offshore Mid-Norway N. BUTLER1, M. A. CHARNOCK2, K. O. HAGER2,3 & C. A. WATKINS1 1Robertson Research International Ltd., Llanrhos, Llandudno LL30 1SA, UK (e-mail [email protected]) 2Norsk Hydro AS, Research Centre, N-5020, Bergen, Norway 3Norsk Hydro AS, N-0246, Oslo, Norway Abstract: A palynostratigraphical study of the Middle Jurassic Ravenscar Group, Cleveland Basin, northern England involving the integration of miospore and microplank- ton data with sedimentary facies data has resulted in improvements in the stratigraphical resolution of offshore hydrocarbon-bearing strata in the North Viking Graben and Mid- Norway. The Dogger Formation is of ‘earliest’ Aalenian age and is correlative with the uppermost Dunlin Group, Drake Formation and Båt Group, Ror Formation. The overly- ing Aalenian Saltwick and Eller Beck formations correlate with the Brent Group, Broom–Rannoch–Etive–Ness and the Fangst Group, Ile–Not–‘lower’ Garn genetic packages. The Cloughton Formation is either unrepresented or condensed in the Brent Province and Mid-Norway due to a regional unconformity, which truncates lower Bajocian sediments. The Scarborough Formation is of ‘latest’ early to ‘earliest’ late Bajocian age and correlative with the older part of the Tarbert–Heather and the ‘upper’ Garn–Melke genetic packages. These interpretations contrast markedly with the majority of those published. Despite their maturity of exploration and Methodology and techniques development, Middle Jurassic sandstones of the North Sea and offshore Mid-Norway still repre- The analyses were concentrated on three key sent some of the most prolific hydrocarbon sections near Whitby, Ravenscar and Scar- reservoirs in northwest Europe. -
Back Matter (PDF)
Index Note: Page numbers in italic denote figures. Page numbers in bold denote tables. Abel, Othenio (1875–1946) Ashmolean Museum, Oxford, Robert Plot 7 arboreal theory 244 Astrodon 363, 365 Geschichte und Methode der Rekonstruktion... Atlantosaurus 365, 366 (1925) 328–329, 330 Augusta, Josef (1903–1968) 222–223, 331 Action comic 343 Aulocetus sammarinensis 80 Actualism, work of Capellini 82, 87 Azara, Don Felix de (1746–1821) 34, 40–41 Aepisaurus 363 Azhdarchidae 318, 319 Agassiz, Louis (1807–1873) 80, 81 Azhdarcho 319 Agustinia 380 Alexander, Annie Montague (1867–1950) 142–143, 143, Bakker, Robert. T. 145, 146 ‘dinosaur renaissance’ 375–376, 377 Alf, Karen (1954–2000), illustrator 139–140 Dinosaurian monophyly 93, 246 Algoasaurus 365 influence on graphic art 335, 343, 350 Allosaurus, digits 267, 271, 273 Bara Simla, dinosaur discoveries 164, 166–169 Allosaurus fragilis 85 Baryonyx walkeri Altispinax, pneumaticity 230–231 relation to Spinosaurus 175, 177–178, 178, 181, 183 Alum Shale Member, Parapsicephalus purdoni 195 work of Charig 94, 95, 102, 103 Amargasaurus 380 Beasley, Henry Charles (1836–1919) Amphicoelias 365, 366, 368, 370 Chirotherium 214–215, 219 amphisbaenians, work of Charig 95 environment 219–220 anatomy, comparative 23 Beaux, E. Cecilia (1855–1942), illustrator 138, 139, 146 Andrews, Roy Chapman (1884–1960) 69, 122 Becklespinax altispinax, pneumaticity 230–231, Andrews, Yvette 122 232, 363 Anning, Joseph (1796–1849) 14 belemnites, Oxford Clay Formation, Peterborough Anning, Mary (1799–1847) 24, 25, 113–116, 114, brick pits 53 145, 146, 147, 288 Benett, Etheldred (1776–1845) 117, 146 Dimorphodon macronyx 14, 115, 294 Bhattacharji, Durgansankar 166 Hawker’s ‘Crocodile’ 14 Birch, Lt. -
“Geochemical Characterisation of the Pliensbachian-Toarcian Boundary During the Onset of the Toarcian Oceanic Anoxic Event
“Geochemical characterisation of the Pliensbachian-Toarcian boundary during the onset of the Toarcian Oceanic Anoxic Event. North Yorkshire, UK” Najm-Eddin Salem A thesis submitted to Newcastle University In partial fulfilment of the requirements for the degree of Doctor of Philosophy in the Faculty of Science and Agriculture School of Civil Engineering and Geosciences, Newcastle University, UK. February 2013 I ABSTRACT The lower Whitby Mudstone Formation of the Cleveland Basin in North Yorkshire (UK) is a world renowned location for the Early Toarcian (T-OAE). Detailed climate records of the event have been reported from this location that shed new light on the forcing and timing of climate perturbations and associated development of ocean anoxia. Despite this extensive previous work, few studies have explored the well-preserved sediments below the event that document different phases finally leading to large-scale (global) anoxia, which is the focus of this project. We resampled the underlying Grey Shale Member at cm-scale resolution and conducted a detailed multi-proxy geochemical approach to reconstruct the redox history prior to the Toarcian OAE. The lower Whitby Mudstone Formation, subdivided into the Grey Shale Member overlain by the Jet Rock (T-OAE), is a cyclic transgressive succession that evolved from the relatively shallow water sediments of the Cleveland Ironstone Formation. The Grey Shale Member is characterised by three distinct layers of organic rich shales (~10-60 cm thick), locally named as the ‘sulphur bands’. Directly above and below these conspicuous beds, the sediments represent more normal marine mudstones. Further upwards the sequence sediments become increasingly laminated and organic carbon rich (up to 14 wt %) representing a period of maximum flooding that culminated in the deposition of the Jet Rock (T-OAE). -
Local Geodiversity Action Plan for Oxfordshire’S Lower and Middle Jurassic
Local Geodiversity Action Plan for Oxfordshire’s Lower and Middle Jurassic Supported by Oxfordshire’s Lower and Middle Jurassic Geodiversity Action Plan has been produced by Oxfordshire Geology Trust with funding from the ALSF Partnership Grants Scheme through Defra’s Aggregates Levy Sustainability Fund. Oxfordshire Geology Trust The Geological Records Centre The Corn Exchange Faringdon SN7 7JA 01367 243 260 www.oxfordshiregt.org [email protected] © Oxfordshire Geology Trust, June 2006 Lower and Middle Jurassic Local Geodiversity Action Plan, Edition 1 Page 1 of 25 © Oxfordshire Geology Trust March 2007 Contents Introduction 3 What is Geodiversity? 4 The Conservation of our Geodiversity National Geoconservation Initiatives 5 Geoconservation in Oxfordshire 6 Local Geodiversity Action plans – Purpose and Process The Purpose of LGAPs 7 The Geographical Boundary 7 Preparing the Plan 8 Geodiversity Audit 8 Oxfordshire’s Lower and Middle Jurassic Geodiversity Resource Lower Lias 10 Middle Lias 11 Upper Lias 12 Inferior Oolite 12 Great Oolite 12 Oxford Clay 16 Fossils 16 Geomorphological Features 17 Building Stone 18 Museum Collections 18 History of Geological Research 19 Implementation Relationships with other Management Plans 21 Future of the LGAP 22 The Action Plan 23 Lower and Middle Jurassic Local Geodiversity Action Plan, Edition 1 Page 2 of 25 © Oxfordshire Geology Trust March 2007 Introduction Oxfordshire’s geology has long been admired by geologists and utilised by industry. In fact, it was a driving force for the industrialization of the nation through the exploitation of ironstone. Our geodiversity however, extends beyond our exposures of rocks and fossils to include landscape and geomorphology, building stones, museums collections and soils. -
Distribution and Significance of Mesozoic Vertebrate Trace Fossil
Lockley et al.: Distribution and Significance of Mesozoic Vertebrate Trace Fossil DISTRIBUTION AND SIGNIFICANCE OF MESOZOIC VERTEBRATE TRACE FOSSILS IN DINOSAUR NATIONAL MONUMENT • MARTIN LOCKLEY +KELLY CONRAD +MARC PAQUETTE GEOLOGY DEPARTMENT + UNIVERSITY OF COLORADO DENVER • INTRODUCTION • - FIELD METHODS Dinosaur National Monument (DNM) During the summer of 1991 (end of year one encompasses a large area with surface exposures of and start of year two), reconaissance exploration for. Mesozoic rocks. Although only one isolated footprint vertebrate tracks at DNM was undertaken by Martin (from an unknown locality) had previously been Lockley, Kelly Conrad and Mark Paquette in June, discovered at DNM, there is a high potential for July and August. Following our initial success with preservation of fossil footprints in this area, as has tracksite discovery in the late Triassic Chinle/Popo been proven by discoveries in similar rocks in the Agie beds of the western part of DNM, we continued -region around DNM, and during research activity at to survey this unit throughout DNM. Tracks were DNM. As reported by Lockley et al. (1990), the found at all but the last locality. At all sites where purpose of this research is to seek, document and exposure permitted, we also measured the interpret vertebrate trace fossils in any of the ten stratigraphic position of trackbearing layers. potentially track-bearing Mesozoic stratigraphic units in which footprints might be discovered. We also began a collecting and replicating program that resulted in the acquisition of 27 original During the course of the first ·year (6/90-6/91) specimens · and replicas. Tracks were molded from the University of Colorado at Denver Research Group original specimens in the field using latex rubber, documented 11 localities where tracks were then replicated in the lab using plaster of Paris. -
Annex 3 National Conservation Designations
Lavernock Point to St Ann’s Head SMP2 Appendix D: SEA Scoping Report Annex A: SEA Environmental Baseline Report (Theme Review) Annex 3: National Conservation Designations Designation Biological/Geologic Summary % in Favourable Coastal Sections al Area (ha) Condition (Key below) Site of Special Scientific Interest (SSSI) Penarth Coast Biological & Thirteen metre 'Rhaetic' section resting on a conspicuously waterworn surface beneath the 'Sully Beds'. The Westbury 'bone bed' 66 A Geological development here yields the normal assemblage of fish and reptile debris. This coastal section is also the best available in the Blue (25.07% Lias of South Wales and is of importance for its comparisons with the 'littoral' more marginal rocks of the Lias further west in unfavourable Glamorgan. This through-section from the Keuper to the Lower Sinmurian is unrivalled in any other section in Wales and the site is recovering, 4.41% consequently regarded as one of Britain's most important stratigraphical localities. unfavourable no The site also includes: rich calcareous grassland and cliff-top scrub supporting a number of plant species of limited occurrence and change & 4.52% distribution in the former counties of Mid and South Glamorgan. unfavourable declining) Sully Island Biological & Sea-cliff exposures - provide sections in the marginal facies of the Triassic Mercia Mudstone Group, (include a series of breccias and 51.24 A Geological sands, interpreted as lake-shore deposits which are overlain by nodular evaporites and carbonates). (48.76% unfavourable Underlain (unconformably) by a terraced surface of Carboniferous Limestone - demonstrates the regionally significant unconformity declining) between Carboniferous and Triassic rocks, as well as a range of sediments, facilitating study of the lake facies and palaeoenvironments prevalent in late Triassic times. -
Horizontal Fracture-Fault Network Characterization of Pavement Imagery of the Whitby Mudstone
Horizontal fracture-fault network characterization of pavement imagery of the Whitby Mudstone Q.D. Boersma Department of Earth Sciences, Utrecht University, The Netherlands A Msc Thesis First Supervisor: Prof. dr. M.R. Drury (Utrecht University) Second Supervisor: dr. N.J. Hardebol (TU Delft) Third Supervisor: dr. M.E. Houben (Utrecht University) 1 Abstract Natural fractures play an important role in the hydrocarbon production from tight reservoirs. The need for fracture network pathways by fraccing matters particularly for shale gas prospects, due to their nano to micro darcies matrix permeabilities. The study of natural fractures from outcrops helps to better understand network connectivity and possibility of reactivating pre-existing planes of weakness, induced by hydraulic stimulation. Microseismicity also show that natural fractures are reactivated during fraccing in tight gas reservoirs and influence the success of the stimulation. An accurate understanding of natural fracture networks can help in predicting the development of fracture networks. In this research we analyze an outcrop analogue, the Whitby Mustone Formation (WMF), in terms of its horizontal fracture network. The WMF is the time equivalent of the Posidonia Shale Formation (PSF), which on itself is the main shale gas prospect in the Dutch subsurface. The fracture network of the WMF is characterized by a system of steep dipping joints with two dominant directions with N-S and E-W strike. The network was digitized from bird-view imagery of the pavement with a spatial extent of ~100 m at sub-cm resolution. The imagery is interpreted in terms of orientation and length distributions, intensity and fractal dimensions. -
Regional Geology
CHAPTER III REGIONAL GEOLOGY The area known as the West Riding was an administrative EARLY PALAEOZOIC division of the ancient county of Yorkshire and includes (ORDOVICIAN TO DEVONIAN SYSTEMS) parts of the modern administrative areas of West Ordovician rocks outcrop as small inliers east of Howgill Yorkshire, North Yorkshire, Cumbria and Lancashire. Fells and more extensively in the extreme northwest Geographically the area extends from the high ground around Sedburgh. Historically they were exploited on a (>600m) of the Pennines in the north and west into the local basis for building stone, flagstones and roofing slates. lowland areas marginal to the Vale of York in the east. The Silurian rocks were exploited for flagstones in the These major topographic subdivisions reflect changes Ingleton and Horton-in-Ribblesdale areas and were used in the underlying geological formations (Fig. 6). The locally for grave stones, boundary and milestone markers. high mountainous spine of the Pennine area that crosses The best known of these stones were the Horton Flags the West Riding from north to south, is underlain by which were quarried around Helwith Bridge (from the hard, durable rocks ranging from Precambrian to seventeenth to nineteenth centuries: Mitchell, W. 1985). Namurian (Carboniferous) in age. The lower ground to The massive sandstones of the Austick Grits were also the south-east is underlain by the thick Coal Measure used locally for building. Stones from this succession have successions exposed in the deeply incised valleys of the not so far been identified in the Anglo-Saxon carved Yorkshire Coalfield, extending southwards from Leeds to Sheffield. -
Stratigraphical Framework for the Middle Jurassic Strata of Great
Stratigraphical framework for the Middle Jurassic strata of Great Britain and the adjoining continental shelf Geology and Landscape Programme Research Report RR/11/06 BRITISH GEOLOGICAL SURVEY RESEARCH REPORT RR/11/06 The National Grid and other Stratigraphical framework for the Ordnance Survey data © Crown copyright and database rights 2012. Ordnance Survey Licence Middle Jurassic strata of Great No. 100021290 Britain and the adjoining Key words Geology, stratigraphy, lithostratigraphy, Inferior Oolite continental shelf Group, Great Oolite Group, Ravenscar Group, Great Estuarine Group, Sutherland Group, Ancholme Group, Jurassic. A J M Barron, G K Lott, J B Riding Front cover Hilltop Quarry, Leckhampton Hill, Cheltenham, Glos.: the Birdlip Limestone Formation overlain by the Aston Limestone Formation. (P775213, A J M Barron) Bibliographical reference BARRON, A J M, LOTT, G K, AND RIDING, J B. 2012. Stratigraphical framework for the Middle Jurassic strata of Great Britain and the adjoining continental shelf. British Geological Survey Research Report, RR/11/06. 187pp. ISBN 978 0 85272 695 2 Copyright in materials derived from the British Geological Survey’s work is owned by the Natural Environment Research Council (NERC) and/or the authority that commissioned the work. You may not copy or adapt this publication without first obtaining permission. Contact the BGS Intellectual Property Rights Section, British Geological Survey, Keyworth, e-mail [email protected]. You may quote extracts of a reasonable length without prior permission, provided