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From the Early Paleozoic Platforms of Baltica and Laurentia to the Caledonide Orogen of Scandinavia and Greenland
44 by David G. Gee1, Haakon Fossen2, Niels Henriksen3, and Anthony K. Higgins3 From the Early Paleozoic Platforms of Baltica and Laurentia to the Caledonide Orogen of Scandinavia and Greenland 1 Department of Earth Sciences, Uppsala University, Villavagen Villavägen 16, Uppsala, SE-752 36, Sweden. E-mail: [email protected] 2 Department of Earth Science, University of Bergen, Allégaten 41, N-5007, Bergen, Norway. E-mail: [email protected] 3 The Geological Survey of Denmark and Greenland, Øster Voldgade 10, Dk 1350 Copenhagen, Denmark. E-mail: [email protected], [email protected] The Caledonide Orogen in the Nordic countries is exposed in Norway, western Sweden, westernmost Fin- Introduction land, on Svalbard and in northeast Greenland. In the The Caledonide Orogen is preserved on both sides of the North mountains of western Scandinavia, the structure is dom- Atlantic Ocean, in the mountains of western Scandinavia and north- inated by E-vergent thrusts with allochthons derived eastern Greenland; it continues northwards from northern Norway, across the Barents Shelf and Svalbard to the edge of the Eurasian from the Baltoscandian platform and margin, from out- Basin (Figure 1). The orogen is notable for its thrust systems, board oceanic (Iapetus) terranes and with the highest E-vergent in Scandinavia and W-vergent in Greenland. The width of the orogen, prior to Cenozoic opening of the North Atlantic, was in thrust sheets having Laurentian affinities. The other the order of at least 700–800 km, the deformation fronts on both side of this bivergent orogen is well exposed in north- sides of the orogen being defined by thrusts that, in the Devonian, eastern Greenland, where W-vergent thrust sheets probably reached substantially further onto the foreland platforms than they do today. -
Understanding Mediterranean Tectonics to Recognise Earthquake-Prone Zones
Understanding Mediterranean Tectonics to Recognise Earthquake-prone Zones Professor Enzo Mantovani UNDERSTANDING MEDITERRANEAN TECTONICS TO RECOGNISE EARTHQUAKE-PRONE ZONES Precisely predicting when earthquakes will happen is still a distant goal. However, local authorities could reduce the damage caused by such disasters if scientists could identify zones that are most likely to be affected by earthquakes. Gaining this information requires an in-depth knowledge of the ongoing tectonic situation in a given area. In the Mediterranean region, this knowledge is surrounded by considerable uncertainty, as different researchers have different hypotheses to explain tectonic processes in this area. Professor Enzo Mantovani and his team at the University of Siena, Italy, propose a new geodynamic interpretation that offers a plausible explanation for all major tectonic features observed in this area. Using their hypothesis, along with the seismic history of the region, the team has recognised a connection between the short-term development of tectonic processes and the distribution of major earthquakes. Tectonic Evolution of the and Eurasian plates. However, Mediterranean since convergence mostly produces ‘compressional’ deformations, causing Over the last 30 million years, the the Earth’s crust to become thicker and tectonic and morphological situation mountains to form, some researchers in the Mediterranean region has propose that other driving forces undergone profound change. In this caused the formation of basins in the area, elongated regions of deformation Mediterranean. where the African and Eurasian tectonic plates converge – called ‘orogenic The most frequently cited hypothesis belts’ – migrated by distances of several assumes that basin formation is hundreds of kilometres and some also driven by the gravitational sinking of underwent strong distortions. -
The Terrane Concept and the Scandinavian Caledonides: a Synthesis
The terrane concept and the Scandinavian Caledonides: a synthesis DAVID ROBERTS Roberts , D. 1988: The terrane concept and the Scandinavian Caledonides: a synthesis. Nor. geol . unders . Bull. 413. 93-99. A revised terrane map is presented for the Scandinavian Caledcnldes. and an outline is given of the principal suspect and exot ic terranes and terrane-complexe s identified outboa rd from the Baltoscand ian miogeocline. The outermost part of the Baltoscandian continental margin is itself suspect , in the terrane sense. since the true palaeogeographical location s of rocks now represented in the Seve and serey-seuano Nappes, while inferred, are not known. The orogen -internal exotic terranes embrace the oceanic/eugeoclinal elements of the Caledonides, represented by the mag matosed imentary assemblages of the Koli Nappes, including ophiolite fragments and island arc products. Even more exot ic terranes occur in the highest parts of the tectonostratigraphy, inclu ding units which are thought possibly to derive from the Laurentian side of lapetus . D. Roberts. Norges geologiske uruierseketse, Postboks 3006. Lade, N-7002 Trondbeim , Norway . Introduction Project 233 has been to prepare a preliminary Earlier in this decade much of the research terrane map' at 1:5 M scale (Roberts et al. effort in the Caledonides of Scandinavia was 1986) for a larger, circum-Atlantic compilation. channelled through the highly successfu l IGCP This map, much simplified, is really one of Project 27 The Caledonide Orogen ' (Gee & palaeo-environments (marginal basins, vol Sturt 1985). An important aspect of the collabo canic arc comp lexes, overstep sequences , rative work in this project was that of map etc.), and not of terranes in the true sense. -
Assembly, Configuration, and Break-Up History of Rodinia
Author's personal copy Available online at www.sciencedirect.com Precambrian Research 160 (2008) 179–210 Assembly, configuration, and break-up history of Rodinia: A synthesis Z.X. Li a,g,∗, S.V. Bogdanova b, A.S. Collins c, A. Davidson d, B. De Waele a, R.E. Ernst e,f, I.C.W. Fitzsimons g, R.A. Fuck h, D.P. Gladkochub i, J. Jacobs j, K.E. Karlstrom k, S. Lu l, L.M. Natapov m, V. Pease n, S.A. Pisarevsky a, K. Thrane o, V. Vernikovsky p a Tectonics Special Research Centre, School of Earth and Geographical Sciences, The University of Western Australia, Crawley, WA 6009, Australia b Department of Geology, Lund University, Solvegatan 12, 223 62 Lund, Sweden c Continental Evolution Research Group, School of Earth and Environmental Sciences, University of Adelaide, Adelaide, SA 5005, Australia d Geological Survey of Canada (retired), 601 Booth Street, Ottawa, Canada K1A 0E8 e Ernst Geosciences, 43 Margrave Avenue, Ottawa, Canada K1T 3Y2 f Department of Earth Sciences, Carleton U., Ottawa, Canada K1S 5B6 g Tectonics Special Research Centre, Department of Applied Geology, Curtin University of Technology, GPO Box U1987, Perth, WA 6845, Australia h Universidade de Bras´ılia, 70910-000 Bras´ılia, Brazil i Institute of the Earth’s Crust SB RAS, Lermontova Street, 128, 664033 Irkutsk, Russia j Department of Earth Science, University of Bergen, Allegaten 41, N-5007 Bergen, Norway k Department of Earth and Planetary Sciences, Northrop Hall University of New Mexico, Albuquerque, NM 87131, USA l Tianjin Institute of Geology and Mineral Resources, CGS, No. -
Vertebrate Microremains from the Lower Silurian of Siberia and Central Asia: Palaeobiodiversity and Palaeobiogeography
Journal of Micropalaeontology, 30: 97–106. 2011 The Micropalaeontological Society Vertebrate microremains from the Lower Silurian of Siberia and Central Asia: palaeobiodiversity and palaeobiogeography ŽIVILĖ ŽIGAITĖ1,2,*, VALENTINA KARATAJŪTĖ-TALIMAA3 & ALAIN BLIECK1 1UFR Sciences de la Terre, FRE 3298 du CNRS ‘Géosystèmes’, Université Lille – 1, F-59655 Villeneuve d’Ascq Cedex, France 2Department of Evolution and Development, Uppsala University, Norbyvägen 18A, SE-75236 Uppsala, Sweden 3Department of Geology and Mineralogy, Vilnius University, M.K.Ciurlionio 21/27, LT-03101 Vilnius, Lithuania *Corresponding author (e-mail: [email protected]) ABSTRACT – The biostratigraphic and palaeogeographical distributions of early vertebrate microfossils from a number of Lower Silurian localities in northwestern Mongolia, Tuva and southern Siberia were reviewed. Vertebrate microremains showed high taxonomic diversity, comprising acanthodians, chon- drichthyans, putative galeaspids, heterostracans, mongolepids, tesakoviaspids, thelodonts and possible eriptychiids. The majority of taxa have lower stratigraphic levels of occurrence compared to other Silurian palaeobiogeographical provinces, such as the European-Russian or Canadian Arctic. Vertebrate micro- remains are numerous within the samples, which may indicate warm-water low-latitude palaeobasins with rich shelf faunas. This disagrees with the recent interpretations of the territory as a northern high-latitude Siberian palaeocontinent. The palaeobiogeographical distribution of vertebrate taxa indicates an endemic palaeobiogeographical province of connected epeiric palaeoseas with external isolation during the early Silurian. In previous works separation between Tuvan and Siberian palaeobiogeographical provinces has been suggested. After careful revision of the vertebrate microfossil record of the region, we find that differences in a few vertebrate taxa do not provide not strong enough evidence to reliably distinguish these provinces. -
Salt Tectonics in the Central and Northeastern Nordkapp Basin, Barents Sea
Salt tectonics in the central and northeastern Nordkapp Basin, Barents Sea Silje Grimstad Master Thesis in Geoscience Petroleum geology and petroleum geophysics 30 credits Department of Geoscience Faculty of Mathematics and Natural Science UNIVERSITY OF OSLO June 2016 II Salt tectonics in the central and northeastern Nordkapp Basin, Barents Sea Silje Grimstad Master Thesis in Geoscience Petroleum geology and petroleum geophysics 30 credits Department of Geoscience Faculty of Mathematics and Natural Science UNIVERSITY OF OSLO June 2016 III © Silje Grimstad 2016 Salt tectonics in the central and northeastern Nordkapp Basin, Barents Sea Silje Grimstad http://www.duo.uio.no/ Print: Reprosentralen, University of Oslo IV Abstract The Nordkapp Basin is an elongated salt-filled basin that developed during the Late Paleozoic rifting in the southwestern Barents Sea. The study area is divided into the central sub-basin and the NE sub-basin. The NE sub-basin is positioned in the former disputed area between Norway and Russia. Salt diapirism and the formation of pillows attached to the basin margin make the Nordkapp Basin one crucial example of salt tectonics in the southwestern Barents Sea. The objective of this thesis is to study the salt distribution and evolution of the salt structures in the northern part of the Nordkapp Basin. The main dataset is 2D seismic reflection lines that are used in combination with filtered gravity data, selected time-slices from a pseudo-3D cube and well data. The rift basin architecture in the Nordkapp Basin is characterized by a wide fault zone of short densely-spaced fault segments. The lateral continuity of the fault segments increases upwards from the Late Paleozoic level. -
Vertical Plate Motions in the West Siberian Basin and Northern Europe As Indicators of Mantle-Induced
Vertical plate motions in the West Siberian Basin and Northern Europe as indicators of mantle-induced dynamic topography Yulia Vibe München 2017 Vertical plate motions in the West Siberian Basin and Northern Europe as indicators of mantle-induced dynamic topography Yulia Vibe Dissertation An der Fakultät für Geowissenschaften der Ludwig-Maximilians-Universität München vorgelegt von Yulia Vibe aus Nowosibirsk München, 13.09.2017 Erstgutachter: Prof. Dr. Hans-Peter Bunge Zweitgutachter: Dr. Stuart R. Clark Tag der mündlichen Prüfung: 05.02.2018 Acknowledgements I would like to express my sincere gratitude to my supervisors Dr. Stuart R. Clark and Prof. Dr. Hans-Peter Bunge for all the support and guidance over the last years. I am very thankful for everything you taught me as a researcher and as a person. Also, I would like to thank my parents for always helping me in everything I do. Your example of dedication, hard work and passion to learn has always been my main inspiration in work and life. This thesis would be impossible without the help of Prof. Dr. Anke Friedrich, Dr. Lorenzo Colli, Dr. Stefanie Rieger and Dr. Christoph Moder. Thank you very much for the knowledge you gave me and for your contribution and support during this project. And, of course, thanks to my beloved friends and family: to the family Schmidt for being my home in Munich and to Bernardo and Teodora for making my PhD years joyful. Summary Motion of the lithospheric plates is a reflection of the convective circulation of the Earth’s mantle. Plate divergence is attributed to the mantle upwellings, while plate convergence to the mantle’s downwellings. -
Geological Excursion BASE-Line Earth
Geological Excursion BASE-LiNE Earth (Graz Paleozoic, Geopark Karavanke, Austria) 7.6. – 9.6. 2016 Route: 1. Day: Graz Paleozoic in the vicinity of Graz. Devonian Limestone with brachiopods. Bus transfer to Bad Eisenkappel. 2. Day: Visit of Geopark Center in Bad Eisenkappel. Walk on Hochobir (2.139 m) – Triassic carbonates. 3. Day: Bus transfer to Mezica (Slo) – visit of lead and zinc mine (Triassic carbonates). Transfer back to Graz. CONTENT Route: ................................................................................................................................... 1 Graz Paleozoic ...................................................................................................................... 2 Mesozoic of Northern Karavanke .......................................................................................... 6 Linking geology between the Geoparks Carnic and Karavanke Alps across the Periadriatic Line ....................................................................................................................................... 9 I: Introduction ..................................................................................................................... 9 II. Tectonic subdivision and correlation .............................................................................10 Geodynamic evolution ...................................................................................................16 Alpine history in eight steps ...........................................................................................17 -
New Insights on the Marseille-Aubagne Oligocene Basins (France)
Nury, D., Villeneuve, M., Arlhac, P., Gärtner, A., Linnemann, U., Châteauneuf, J.J., Riveline, J. and Hippolyte, J.C., 2016. New insights on the Marsei- lle-Aubagne Oligocene basins (France). Boletín Geológico y Minero, 127 (2/3): 483-498 ISSN: 0366-0176 New insights on the Marseille-Aubagne Oligocene basins (France) D. Nury(1), M. Villeneuve(2), P. Arlhac(3), A. Gärtner(4), U. Linnemann(4), J.J. Châteauneuf(5), J. Riveline(6) and J.C. Hippolyte(2) (1) MCF honoraire, 48, impasse des Micocoules, 13390, Auriol, France. [email protected] (2) Cerege, case 67, 3 place Victor Hugo, 13331, Marseille, France. [email protected] (3) MCF honoraire, 2208, chemin de Cuges, 83740, La Cadière d’Azur. [email protected] (4) Senckenberg Naturhistorische Sammlungen Dresden, Museum für Mineralogie und Geologie, Königsbrücker Landstrasse 159, D 01109, Dresden, Germany. Email:[email protected] [email protected] (5) BRGM. 8, Quai du Chatelet, 45000 , Orléans, France. [email protected] (6) UPMC – ISTEP UMR 7193, laboratoire de biominéralisations et environnements sédimentaires, case 116, 4, Place Jussieu, 75252 Paris Cedex 05. [email protected] ABSTRACT The Marseille-Aubagne Basins, which extend from Marseille to Roquevaire, occupy more than fifty per cent of the Marseille-Aubagne geological map, with approximately one million people living in this area. Despite this geological importance they are still poorly known. The first synthetic view was delivered in the 1935 geological map. Studied by Bonifay, the Quaternary deposits have been included in the 1969 geological map. Nevertheless, the Oligocene formations remained unmodified until Nury, who provided a lot of very detailed stratigraphic data. -
Energy Procedia
Available online at www.sciencedirect.com Energy Procedia Energy Procedia 00 (2008) 000–000 www.elsevier.com/locate/XXX GHGT-9 Possibilities for geological storage and mineral trapping of industrial CO2 emissions in the Baltic region Alla Shogenovaa, Saulius Šliaupab,c, Kazbulat Shogenova, Rasa Šliaupieneb, Raisa Pomerancevad, Rein Vahera, Mai Uibue, Rein Kuusike aInstitute of Geology, Tallinn University of Technology, Ehitajete tee5, 19086 Tallinn, Estonia bInstitute of Geology and Geography, T. Sevcenkos 13, Lt-03223, Vilnius, Lithuania cVilnius University,Universiteti St.3, LT-01513, Vilnius, Lithuania dLatvian Environment, Geology & Meteorology Agency, Maskavas St. 165, LV-1019, Riga, Latvia eLaboratory of Inorganic Materials, Ehitajete tee5, Tallinn 19086, Estonia Elsevier use only: Received date here; revised date here; accepted date here Abstract Industrial CO2 emissions and possibilities for geological storage of CO2 in Estonia, Latvia and Lithuania were studied within the framework of EU GEOCAPACITY and CO2NET EAST projects supported by European Commission Sixth Framework Programme (FP6). Twenty-two large industrial sources produced 14.5 Mt of CO2 in Estonia, 1.9 Mt in Latvia and 4.8 Mt in Lithuania in 2007. The two greatest Estonian power stations, using oil-shale, produced 9.4 and 2.7 Mt of CO2. The Baltic States are located within the Baltic sedimentary basin, the thickness of which varies from 100 m in NE Estonia up to 1900 m in SW Latvia and 2300 m in western Lithuania. The most prospective formation for the geological storage of CO2 is the Cambrian reservoir, with an estimated potential of 300 Mt of CO2 in 15 large structures located in Latvia. -
French Geothermal Resources Survey BRGM Contribution to the Market Study in the LOW-BIN Project
French geothermal resources survey BRGM contribution to the market study in the LOW-BIN project BRGM/RP - 57583 - FR August, 2009 French geothermal resources survey BRGM contribution to the market study in the LOW-BIN project (TREN/05/FP6EN/S07.53962/518277) BRGM/RP-57583-FR August, 2009 F. Jaudin With the collaboration of M. Le Brun, V.Bouchot, C. Dezaye IM 003 ANG – April 05 Keywords: French geothermal resources, geothermal heat, geothermal electricity generation schemes, geothermal Rankine Cycle, cogeneration, geothermal binary plants In bibliography, this report should be cited as follows: Jaudin F. , Le Brun M., Bouchot V., Dezaye C. (2009) - French geothermal resources survey, BRGM contribution to the market study in the LOW-BIN Project. BRGM/RP-57583 - FR © BRGM, 2009. No part of this document may be reproduced without the prior permission of BRGM French geothermal resources survey BRGM contribution to the market study in the LOW-BIN Project BRGM, July 2009 F.JAUDIN M. LE BRUN, V. BOUCHOT, C. DEZAYE 1 / 33 TABLE OF CONTENT 1. Introduction .......................................................................................................................4 2. The sedimentary regions...................................................................................................5 2.1. The Paris Basin ........................................................................................................5 2.1.1. An overview of the exploitation of the low enthalpy Dogger reservoir ..............7 2.1.2. The geothermal potential -
Carboniferous Formations and Faunas of Central Montana
Carboniferous Formations and Faunas of Central Montana GEOLOGICAL SURVEY PROFESSIONAL PAPER 348 Carboniferous Formations and Faunas of Central Montana By W. H. EASTON GEOLOGICAL SURVEY PROFESSIONAL PAPER 348 A study of the stratigraphic and ecologic associa tions and significance offossils from the Big Snowy group of Mississippian and Pennsylvanian rocks UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1962 UNITED STATES DEPARTMENT OF THE INTERIOR STEWART L. UDALL, Secretary GEOLOGICAL SURVEY Thomas B. Nolan, Director The U.S. Geological Survey Library has cataloged this publication as follows : Eastern, William Heyden, 1916- Carboniferous formations and faunas of central Montana. Washington, U.S. Govt. Print. Off., 1961. iv, 126 p. illus., diagrs., tables. 29 cm. (U.S. Geological Survey. Professional paper 348) Part of illustrative matter folded in pocket. Bibliography: p. 101-108. 1. Paleontology Montana. 2. Paleontology Carboniferous. 3. Geology, Stratigraphic Carboniferous. I. Title. (Series) For sale by the Superintendent of Documents, U.S. Government Printing Office Washington 25, B.C. CONTENTS Page Page Abstract-__________________________________________ 1 Faunal analysis Continued Introduction _______________________________________ 1 Faunal relations ______________________________ 22 Purposes of the study_ __________________________ 1 Long-ranging elements...__________________ 22 Organization of present work___ __________________ 3 Elements of Mississippian affinity.._________ 22 Acknowledgments--.-------.- ___________________