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Macroevolutionary Change in the Morphology of the Diatom Fustule Zoe V
This article was downloaded by: [Finkel, Zoe V.] On: 14 September 2010 Access details: Access Details: [subscription number 926896412] Publisher Taylor & Francis Informa Ltd Registered in England and Wales Registered Number: 1072954 Registered office: Mortimer House, 37- 41 Mortimer Street, London W1T 3JH, UK Geomicrobiology Journal Publication details, including instructions for authors and subscription information: http://www.informaworld.com/smpp/title~content=t713722957 Silica Use Through Time: Macroevolutionary Change in the Morphology of the Diatom Fustule Zoe V. Finkela; Benjamin Kotrcb a Environmental Science Program, Mount Allison University, Sackville, New Brunswick, Canada b Department of Earth and Planetary Sciences, Harvard University, Cambridge, Massachusetts, USA Online publication date: 13 September 2010 To cite this Article Finkel, Zoe V. and Kotrc, Benjamin(2010) 'Silica Use Through Time: Macroevolutionary Change in the Morphology of the Diatom Fustule', Geomicrobiology Journal, 27: 6, 596 — 608 To link to this Article: DOI: 10.1080/01490451003702941 URL: http://dx.doi.org/10.1080/01490451003702941 PLEASE SCROLL DOWN FOR ARTICLE Full terms and conditions of use: http://www.informaworld.com/terms-and-conditions-of-access.pdf This article may be used for research, teaching and private study purposes. Any substantial or systematic reproduction, re-distribution, re-selling, loan or sub-licensing, systematic supply or distribution in any form to anyone is expressly forbidden. The publisher does not give any warranty express or implied or make any representation that the contents will be complete or accurate or up to date. The accuracy of any instructions, formulae and drug doses should be independently verified with primary sources. The publisher shall not be liable for any loss, actions, claims, proceedings, demand or costs or damages whatsoever or howsoever caused arising directly or indirectly in connection with or arising out of the use of this material. -
Late Weichselian and Holocene Shore Displacement History of the Baltic Sea in Finland
Late Weichselian and Holocene shore displacement history of the Baltic Sea in Finland MATTI TIKKANEN AND JUHA OKSANEN Tikkanen, Matti & Juha Oksanen (2002). Late Weichselian and Holocene shore displacement history of the Baltic Sea in Finland. Fennia 180: 1–2, pp. 9–20. Helsinki. ISSN 0015-0010. About 62 percent of Finland’s current surface area has been covered by the waters of the Baltic basin at some stage. The highest shorelines are located at a present altitude of about 220 metres above sea level in the north and 100 metres above sea level in the south-east. The nature of the Baltic Sea has alter- nated in the course of its four main postglacial stages between a freshwater lake and a brackish water basin connected to the outside ocean by narrow straits. This article provides a general overview of the principal stages in the history of the Baltic Sea and examines the regional influence of the associated shore displacement phenomena within Finland. The maps depicting the vari- ous stages have been generated digitally by GIS techniques. Following deglaciation, the freshwater Baltic Ice Lake (12,600–10,300 BP) built up against the ice margin to reach a level 25 metres above that of the ocean, with an outflow through the straits of Öresund. At this stage the only substantial land areas in Finland were in the east and south-east. Around 10,300 BP this ice lake discharged through a number of channels that opened up in central Sweden until it reached the ocean level, marking the beginning of the mildly saline Yoldia Sea stage (10,300–9500 BP). -
Geological and Geochemical Assessment of the Sharon Springs
GEOLOGICAL AND GEOCHEMICAL ASSESSMENT OF THE SHARON SPRINGS MEMBER OF THE PIERRE SHALE AND THE NIOBRARA FORMATION WITHIN THE CAÑON CITY EMBAYMENT, SOUTH-CENTRAL COLORADO by Kira K. Timm Dissertation submitted to the Faculty and the Board of Trustees of the Colorado School of Mines in partial fulfillment of the requirements for the degree of Doctor of Philosophy (Geology). Golden, Colorado Date: ________________________ Signed: ___________________________________ Kira K. Timm Signed: ___________________________________ Dr. Stephen A. Sonnenberg Thesis Advisor Golden, Colorado Date: ________________________ Signed: ___________________________________ Dr. Stephen Enders Professor and Department Head Department of Geology and Geological Engineering ii ABSTRACT The Cañon City Embayment, located in south-central Colorado, is one of the oldest and longest oil producing regions in America. Production began in 1862 after the discovery of an oil seep emanating from the Jurassic Morrison Formation. This discovery led to an unsuccessful hunt for the oil spring’s source. The first oil field discovery occurred in 1881, founding the Florence Oil Field. This discovery led to a boom in drilling and production and the further discovery of the Cañon City Field in 1926. Production soon declined, but steady and continuous production occurs to this day. With the upswing caused by the discovery of unconventional petroleum systems, renewed interest led to higher drilling rates within the Cañon City Embayment. As of 2015, more 16.4 MMBO has been produced in the region. Present day production focuses on the fractured Pierre Shale and Niobrara petroleum systems, though exploration is expanding into the Greenhorn Formation. Deposition of both the Late Cretaceous Niobrara Formation and the Sharon Springs Member of the Pierre Shale occurred during transgressive phases within the Western Interior Cretaceous (WIC) Seaway, however significant geochemical and biological differences exist between these formations. -
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The Littorina transgression in southeastern Sweden and its relation to mid-Holocene climate variability Yu, Shiyong 2003 Link to publication Citation for published version (APA): Yu, S. (2003). The Littorina transgression in southeastern Sweden and its relation to mid-Holocene climate variability. Deaprtment of Geology. Total number of authors: 1 General rights Unless other specific re-use rights are stated the following general rights apply: Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. • Users may download and print one copy of any publication from the public portal for the purpose of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal Read more about Creative commons licenses: https://creativecommons.org/licenses/ Take down policy If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. LUND UNIVERSITY PO Box 117 221 00 Lund +46 46-222 00 00 The Littorina transgression in L southeastern Sweden and its relation to mid-Holocene U climate variability N D Q Shi-Yong Yu U LUNDQUA Thesis 51 Quaternary Sciences A Department of Geology GeoBiosphere Science Centre Lund University T Lund 2003 H E S I S LUNDQUA Thesis 51 The Littorina transgression in southeastern Sweden and its relation to mid-Holocene climate variability Shi-Yong Yu Avhandling att med tillstånd från Naturvetenskapliga Fakulteten vid Lunds Universitet för avläggandet av filosofie doktorsexamen, offentligen försvaras i Geologiska institutionens föreläsningssal Pangea, Sölvegatan 12, Lund, fredagen den 14 november kl. -
Relative Sea Level Changes, Glacio-Isostatic Rebound and Shoreline Displacement in the Southern Baltic
SZYMON UŒCINOWICZ RELATIVE SEA LEVEL CHANGES, GLACIO-ISOSTATIC REBOUND AND SHORELINE DISPLACEMENT IN THE SOUTHERN BALTIC Polish Geological Institute Special Papers,10 WARSZAWA 2003 CONTENTS Introduction ..................................................................6 Area, objective and scope of study ......................................................7 Area of study ...............................................................7 Objective and scope of the work .....................................................8 Analysed materials ............................................................9 Geological setting of the Southern Baltic: an outline .............................................9 Pre-Quaternary ..............................................................9 Quaternary................................................................10 Relative sea level changes ..........................................................11 The problem and methods for its solution ...............................................11 Late Pleistocene and Early Holocene ..................................................18 The turn of Early and Middle Holocene, Middle Holocene ......................................31 Late Holocene ..............................................................35 Vertical crust movements ..........................................................37 Glacio-isostatic rebound: an outline of the problem ..........................................37 Glacio-isostatic movements in the Southern Baltic ...........................................38 -
The Late Quaternary Development of the Baltic Sea
The late Quaternary development of the Baltic Sea Svante Björck, GeoBiosphere Science Centre, Department of Geology, Quaternary Sciences, Lund University, Sölveg. 12, SE-223 62 Lund, Sweden INTRODUCTION Since the last deglaciation of the Baltic basin, which began 15 000-17 000 cal yr BP (calibrated years Before Present) and ended 11 000-10 000 cal yr BP, the Baltic has undergone many very different phases. The nature of these phases were determined by a set of forcing factors: a gradually melting Scandinavian Ice Sheet ending up into an interglacial environment, the highly differential glacio-isostatic uplift within the basin (from 9 mm/yr to -1mm/yr; Ekman 1996), changing geographic position of the controlling sills (Fig. 1), varying depths and widths of the thresholds between the sea and the Baltic basin, and climate change. These factors have caused large variations in salinity and water exchange with the outer ocean, rapid to gradual paleographic alterations with considerable changes of the north-south depth profile with time. For example, the area north of southern Finland-Stockholm has never experienced transgressions, or land submergence, while the developmen south of that latitude has been very complex. The different controlling factors are also responsible for highly variable sedimentation rates, both in time and space, and variations of the aquatic productivity as well as faunal and floral changes. The basic ideas in this article follow the lengthy, but less up-dated version of the Baltic Sea history (Björck, 1995), a more complete reference list and, e.g., the calendar year chronology of the different Baltic phases can be found on: http://www.geol.lu.se/personal/seb/Maps%20of%20the%20Baltic.htm. -
•1I1ii11i11 Se0000219
•1I1II11I11 SE0000219 Technical Report TR-99-38 Salinity change in the Baltic Sea during the last 8,500 years: evidence, causes and models Per Westman, Stefan Wastegard, Kristian Schoning Department of Quaternary Research, Stockholm University Bo Gustafsson Oceanus Havsundersokningar, Goteborg Anders Omstedt, SMHl, Norrkoping December 1999 Svensk Karnbranslehantering AB Swedish Nuclear Fuel and Waste Management Co Box 5864 102 40 Stockholm Tel 08-459 84 00 Fax 08-661 57 19 3 1/ 21 Salinity change in the Baltic Sea during the last 8,500 years: evidence, causes and models Per Westman, Stefan Wastegard, Kristian Scheming Department of Quaternary Research, Stockholm University Bo Gustafsson Oceanus Havsundersokningar, Goteborg Anders Omstedt, SMHI, Norrkoping December 1999 Keywords: biosphere, salinity, landrise, surface ecosystem, palaeo salinity This report concerns a study which was conducted for SKB. The conclusions and viewpoints presented in the report are those of the author(s) and do not necessarily coincide with those of the client. NEXT PAGE(S) left BLANK Abstract The salinity influences which ecosystems will dominate in the coastal area and what property radionuclides have. Salinity is also an important boundary condition for the transport models in the geosphere. Knowledge about the past salinity is important background to evaluate the hydrology and geochemistry in the rock and further to assess the radiological consequences of possible releases from a radioactive repository. This report concerns the salinity in the Baltic Sea during the last 8500 calendar years BP. Shore-level data for the inlet areas and proxy (indirect) data for the palaeosalinity and the climate are reviewed. These data is furthered used in a steady-state model for the salt exchange between the Baltic Sea and Kattegat. -
Back Matter (PDF)
Index Numbers in italic indicate figures, numbers in bold indicate tables abiotic environment change 43 Anticosti Island, Qu6bec Acanthocythereis meslei meslei 298, 304, 305 conodont fauna 73-100 Achilleodinium 263 geology 74 Achmosphaera 263 Anticostiodus species 93, 99 Achmosphaera alcicornu 312, 319 Aphelognathus grandis 79, 83-84 Acodus delicatus 50 Apiculatasporites variocorneus 127, 128 acritarch extinction 28, 29 Apiculatisporites verbitskayae 178, 182 Actinoptychus 282, 286, 287 Apsidognathus tuberculatus 96 Actinoptychus senarius 280, 283, 284, 287 Apteodinium 263 adaptation, evolutionary 35 Araucariacites 252 A dnatosphaeridium 312, 314, 321 Archaeoglobigerina blowi 220, 231,232 buccinum 261,264 Archaeoglobigerina cretacea 221 Aequitriradites spinulosus 180, 182 Arctic Basin Aeronian Pliensbachian-Toarcian boundary 137-171, 136 conodont evolutionary cycles 93-96 palaeobiogeography 162, 165, 164, 166, 170 sea-level change 98-100 palaeoclimate 158-160 age dating, independent 237 Aren Formation, Pyrenees 244, 245 age-dependency, Cenozoic foraminifera 38-39, Arenobulimina 221,235 41-44 Areoligera 321 Ailly see Cap d'Ailly coronata 264 Alaska, Pliensbachian-Toarcian boundary, medusettiformis 264, 263, 259 stratigraphy 155-157 Areosphaeridium diktyoplokum 315, 317, 319 Alatisporites hofjmeisterii 127, 128, 129 Areosphaeridium michoudii 314, 317 Albiconus postcostatus 54 Argentina, Oligocene-Miocene palynomorphs Aleqatsia Fjord Formation, Greenland 92 325-341 Alterbidinium 262 Ashgillian Ammobaculites lobus 147, 149, 153, 155, 157 -
PDF Linkchapter
INDEX* With the exception of Allee el al. (1949) and Sverdrup et at. (1942 or 1946), indexed as such, junior authors are indexed to the page on which the senior author is cited although their names may appear only in the list of references to the chapter concerned; all authors in the annotated bibliographies are indexed directly. Certain variants and equivalents in specific and generic names are indicated without reference to their standing in nomenclature. Ship and expedition names are in small capitals. Attention is called to these subindexes: Intertidal ecology, p. 540; geographical summary of bottom communities, pp. 520-521; marine borers (systematic groups and substances attacked), pp. 1033-1034. Inasmuch as final assembly and collation of the index was done without assistance, errors of omis- sion and commission are those of the editor, for which he prays forgiveness. Abbott, D. P., 1197 Acipenser, 421 Abbs, Cooper, 988 gUldenstUdti, 905 Abe, N.r 1016, 1089, 1120, 1149 ruthenus, 394, 904 Abel, O., 10, 281, 942, 946, 960, 967, 980, 1016 stellatus, 905 Aberystwyth, algae, 1043 Acmaea, 1150 Abestopluma pennatula, 654 limatola, 551, 700, 1148 Abra (= Syndosmya) mitra, 551 alba community, 789 persona, 419 ovata, 846 scabra, 700 Abramis, 867, 868 Acnidosporidia, 418 brama, 795, 904, 905 Acoela, 420 Abundance (Abundanz), 474 Acrhella horrescens, 1096 of vertebrate remains, 968 Acrockordus granulatus, 1215 Abyssal (defined), 21 javanicus, 1215 animals (fig.), 662 Acropora, 437, 615, 618, 622, 627, 1096 clay, 645 acuminata, 619, 622; facing -
3. Eemian Interglacial: 130 - 117 Ka Bp
SE9800205 SKB rapport R-98-02 January 1998 Compilation of information on the climate and evaluation of the hydrochemical and isotopic composition during Late Pleistocene and Holocene Cecilia Andersson Intern KB Svensk Karnbranslehantering AB Swedish Nuclear Fuel and Waste Management Co SKB, Box 5864, S-102 40 Stockholm, Sweden Tel 08-665 28 00 Fax 08-661 57 19 Tel+46 8 665 28 00 Fax+46 8 661 57 19 ISSN 1402-3091 SKB Rapport R-98-02 COMPILATION OF INFORMATION ON THE CLIMATE AND EVALUATION OF THE HYDROCHEMICAL AND ISOTOPIC COMPOSITION DURING LATE PLEISTOCENE AND HOLOCENE Cecilia Andersson Intera KB January 1998 This report concerns a study which was conducted for SKB. The conclusions and viewpoints presented in the report are those of the author(s) and do not necessarily coincide with those of the client. COMPILATION OF INFORMATION ON THE CLIMATE AND EVALUATION OF THE HYDROCHEMICAL AND ISOTOPIC COMPOSITION DURING LATE PLEISTOCENE AND HOLOCENE 98-01-07 Cecilia Andersson Intera KB ABSTRACT This report summarises and evaluates some of the existing information on the Late Pleistocene and Holocene climates, i.e. the last 130 000 years. An estimation of the conditions at the Aspo island (southeast Sweden) has also been made during this time span. The knowledge about Late Pleistocene (Eemian Interglacial and Weichselian glacial) is not yet fully understood. There are still a lot of assumptions concerning this period and more information is needed to be able to establish the climatic conditions. This is not the case for the Weichselian deglaciation and the present interglacial, Holocene, for which the environmental conditions are quite certain. -
High-Resolution Hydrodynamic Modelling of the Marine Environment at Forsmark Between 6500 BC and 9000 AD
R-10-09 High-resolution hydrodynamic modelling of the marine environment at Forsmark between 6500 BC and 9000 AD Anna Karlsson, Christin Eriksson, Charlotta Borell Lövstedt, Olof Liungman DHI Sverige AB Anders Engqvist, Division of Water Resources Engineering, KTH February 2010 Svensk Kärnbränslehantering AB Swedish Nuclear Fuel and Waste Management Co Box 250, SE-101 24 Stockholm Phone +46 8 459 84 00 R-10-09 CM Gruppen AB, Bromma, 2010 ISSN 1402-3091 SKB Rapport R-10-09 High-resolution hydrodynamic modelling of the marine environment at Forsmark between 6500 BC and 9000 AD Anna Karlsson, Christin Eriksson, Charlotta Borell Lövstedt, Olof Liungman DHI Sverige AB Anders Engqvist, Division of Water Resources Engineering, KTH February 2010 This report concerns a study which was conducted for SKB. The conclusions and viewpoints presented in the report are those of the authors. SKB may draw modifi ed conclusions, based on additional literature sources and/or expert opinions. A pdf version of this document can be downloaded from www.skb.se. Contents 1 Introduction 9 1.1 Background 9 1.2 Purpose 9 1.3 Deliverables 9 1.4 Contents 9 2 The Baltic Sea and Öregrundsgrepen 11 2.1 Description of Öregrundsgrepen 11 2.2 Evolution 12 2.3 Overview of present hydrodynamic conditions 13 3 Methods 17 3.1 Basin flows 17 3.2 Average Age 18 3.3 Hydraulic residence time 18 3.4 Description of models 18 3.4.1 BC years 18 3.4.2 AD years 20 4 Model input data 25 4.1 Bathymetric data 26 4.2 Meteorological forcing 26 4.3 Land runoff 26 4.4 Sea levels 27 4.5 Stratification -
Reconstruction of the Littorina Transgression in the Western Baltic Sea
Meereswissenschaftliche Berichte MARINE SCIENCE REPORTS No. 67 Reconstruction of the Littorina Transgression in the Western Baltic Sea by Doreen Rößler Baltic Sea Research Institute (IOW), Seestraße 15, D-18119 Rostock-Warnemünde, Germany Mail address: [email protected] Institut für Ostseeforschung Warnemünde 2006 In memory of Wolfram Lemke Contents Abstract 3 Kurzfassung 3 1 Introduction 4 2 Setting of the study area 4 2.1 The Baltic Sea and its western basins, the Mecklenburg Bay and the Arkona Basin 4 2.2 The Pre-Quaternary basement 6 2.3 The Quaternary development 9 2.4 The post-glacial history of the Baltic Sea 11 2.4.1 The early stages: the Baltic Ice Lake, the Yoldia Sea and the Ancylus Lake stage 11 2.4.2 The Littorina transgression, the Littorina Sea and the post-Littorina Sea 15 3 Methods 18 3.1 Work program and material 18 3.2 Field work 22 3.2.1 Seismo-acoustic profiles 22 3.2.2 Sediment coring 22 3.2.3 Sediment sampling on board 23 3.3 Laboratory work 23 3.3.1 Sediment sampling in the laboratory 23 3.3.2 Physical sediment properties 24 3.3.2.1 Multi-Sensor Core Logging (MSCL) 24 3.3.2.2 Bulk density and water content 25 3.3.2.3 Mineral magnetic properties 25 3.3.3 Grain size analyses 26 3.3.4 Geochemical analyses 27 3.3.4.1 C/S- and C/N-analyses 27 3.3.4.2 X-ray fluorescence (XRF) analyses 27 3.3.4.3 Stable δ13C isotope analyses 28 3.3.5 Palaeontological investigations 28 3.3.5.1 Macrofossil analyses 28 3.3.5.2 Microfossil analyses 29 3.3.6 Radiocarbon dating 29 4 Results 30 4.1 Seismo-acoustic profiles 30