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Thin-Skinned Versus Thick-Skinned Tectonics in the Friuli Alps (NE Italy) in Relation to the Alpine-Dinaridic Orogenic System
Department of Earth Sciences UNIVERSITEIT UTRECHT Thin-skinned versus thick-skinned tectonics in the Friuli Alps (NE Italy) in relation to the Alpine-Dinaridic orogenic system MSc Thesis Dominique Engelen February 2016 Supervisors 1st Dr. Ernst Willingshofer 2nd Drs. Inge van Gelder 3rd Dr. Liviu Matenco In collaboration with Anissa Smits Abstract The Friuli Alps, located in the easternmost part of the eastern Southern Alps in north-eastern Italy, represent the interference area of the Dinaric and Alpine mountain chains. There is a wide agreement on the general evolution of the eastern Southern Alps, which would consist of a poly-phase compressional evolution involving three main thrust systems. However, the amount and initiation of the total amount of shortening is still poorly constraint. In this study we investigate the kinematic evolution by means of structural fieldwork and by the balancing and reconstruction of a N-S cross-section by use of MOVE software for 2D modeling. Interpretation of the data led to the definition of five deformation phases (D1- D5), in which a clear distinction could be made between thin- and a thick-skinned phases of deformation. Prior to the compressional phases is the D1 NW-SE extensional phase, which is expressed by NNW-SSE oriented normal faults, related to the NE-SW separation of the Friuli platform during the Early-Jurassic. The D2 NE-SW to E-W directed Dinaric shortening started during the Eocene and is expressed by SW to W-vergent thrusting and folding. Dinaric deformation is largely overprinted by three Alpine phases; D3 – N-S thin-skinned Alpine shortening (Middle- to Late-Miocene), characterized by large scale S-vergent thrusting along flat-ramp-flat trajectories, which resulted in great amounts of transport of the Upper-Triassic and Jurassic platform formations along four main décollements (the Bellerophon, Raibl and Biancone Formation, and the Eocene flysch) and ultimately to tripling and folding of the sedimentary cover. -
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Hugo ORTNER and Franz REITER KINEMATIC HISTORY OF THE TRIASSIC SOUTH OF THE INN VALLEY (NORTHERN CALCAREOUS ALPS, AUSTRIA) - EVIDENCE FOR JURASSIC AND LATE CRETACEOUS LARGE SCALE NORMAL FAULTING 3rd Workshop on Alpine Geological Studies Biella - Oropa, September 29th - October 1st 1997 Guido GOSSO, Flavio JADOUL, Mattia SELLA and Maria Iole SPALLA (Editors) 1999 from Mem. Sci. Geol. v. 51 / 1 pp. 129-140 16 figs Padova 1999 ISSN 0391-8602 Editrice Societa Cooperativa Tipografica PADOVA 1999 Kinematic history of the Triassic South of the Inn Valley (Northern Calcareous Alps, Austria) - Evidence for Jurassic and Late Cretaceous large scale normal faulting Hugo ORTNER and Franz REITER lnstitut for Geologie und Palaontologie, Universitiit Innsbruck, Innrain 52, A-6020 Innsbruck, Osterreich ABSTRACT - The geometry of slices at the southern margin of the Northern Calcareous Alps not only calls for thick ening of the nappe stack by compression, but also thinning of the sedimentary column by extension. The deforma tional history of the Triassic south of the Inn Valley is characterised by six stages: (1) Thinning by top SE extension during Jurassic continental breakup, (2) stacking of thinned slices by top NW thrusting during the time of peak tem perature metamorphism at 140 Ma (Early Cretaceous), (3) postmetamorphic top SE extension (Late Cretaceous) con temporaneously with Gosau sedimentation on top of the nappe pile of the Northern Calcareous Alps and (4) a long period of N-S compression (Eocene), resulting in northvergent thrusting and folding with development of a foliation , southvergent thrusting and, finally, overturning of the strata In the western part of the investigated area. -
A Late Permian Ichthyofauna from the Zechstein Basin, Lithuania-Latvia Region
bioRxiv preprint doi: https://doi.org/10.1101/554998; this version posted February 20, 2019. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY 4.0 International license. 1 A late Permian ichthyofauna from the Zechstein Basin, Lithuania-Latvia Region 2 3 Darja Dankina-Beyer1*, Andrej Spiridonov1,4, Ģirts Stinkulis2, Esther Manzanares3, 4 Sigitas Radzevičius1 5 6 1 Department of Geology and Mineralogy, Vilnius University, Vilnius, Lithuania 7 2 Chairman of Bedrock Geology, Faculty of Geography and Earth Sciences, University 8 of Latvia, Riga, Latvia 9 3 Department of Botany and Geology, University of Valencia, Valencia, Spain 10 4 Laboratory of Bedrock Geology, Nature Research Centre, Vilnius, Lithuania 11 12 *[email protected] (DD-B) 13 14 Abstract 15 The late Permian is a transformative time, which ended in one of the most 16 significant extinction events in Earth’s history. Fish assemblages are a major 17 component of marine foods webs. The macroevolution and biogeographic patterns of 18 late Permian fish are currently insufficiently known. In this contribution, the late Permian 19 fish fauna from Kūmas quarry (southern Latvia) is described for the first time. As a 20 result, the studied late Permian Latvian assemblage consisted of isolated 21 chondrichthyan teeth of Helodus sp., ?Acrodus sp., ?Omanoselache sp. and 22 euselachian type dermal denticles as well as many osteichthyan scales of the 23 Haplolepidae and Elonichthydae; numerous teeth of Palaeoniscus, rare teeth findings of 1 bioRxiv preprint doi: https://doi.org/10.1101/554998; this version posted February 20, 2019. -
Developing a Geological Framework
21/2/12 GeolFrameworkPaper_postreview_v2acceptchanges_editorcomments New insights from 3D geological models at analogue CO2 storage sites in Lincolnshire and eastern Scotland, UK. Alison Monaghan1*, Jonathan Ford2, Antoni Milodowski2, David McInroy1, Timothy Pharaoh2, Jeremy Rushton2, Mike Browne1, Anthony Cooper2, Andrew Hulbert2 and Bruce Napier2 1 British Geological Survey, Murchison House, West Mains Road, Edinburgh, EH9 3LA, UK. 2 British Geological Survey, Kingsley Dunham Centre, Keyworth, Nottingham, NG12 5GG, UK. * Corresponding author (email [email protected] (Approx.15,600 words in total, 25 figures) SUMMARY: Subsurface 3D geological models of aquifer and seal rock systems from two contrasting analogue sites have been created as the first step in an investigation into methodologies for geological storage of carbon dioxide in saline aquifers. Development of the models illustrates the utility of an integrated approach using digital techniques and expert geological knowledge to further geological understanding. The models visualize a faulted, gently dipping Permo-Triassic succession in Lincolnshire and a complex faulted and folded Devono-Carboniferous succession in eastern Scotland. The Permo-Triassic is present in the Lincolnshire model to depths of -2 km OD, and includes the aquifers of the Sherwood Sandstone and Rotliegendes groups. Model-derived thickness maps test and refine Permian palaeogeography, such as the location of a carbonate reef and its associated seaward slope, and the identification of aeolian dunes. Analysis of borehole core samples established average 2D porosity values for the Rotliegendes (16%) and Sherwood Sandstone (20%) groups, and the Zechstein (5%) and Mercia Mudstone (<10%) groups, which are favourable for aquifer and seal units respectively. Core sample analysis has revealed a complex but well understood diagenetic history. -
PLANT FOSSILS in the CASSIAN BEDS and OTHER CARNIAN FORMATIONS of the SOUTHERN ALPS (ITALY) Evelyn Kustatscher1, Fabrizio Bizzar
ZOBODAT - www.zobodat.at Zoologisch-Botanische Datenbank/Zoological-Botanical Database Digitale Literatur/Digital Literature Zeitschrift/Journal: Geo.Alp Jahr/Year: 2011 Band/Volume: 008 Autor(en)/Author(s): Kustatscher Evelyn, Bizzarini Fabrizio, Roghi Guido Artikel/Article: Plant fossils in the Cassian Beds and other carnian formations of the southern Alps (Italy). 146-155 download unter www.biologiezentrum.at Geo.Alp, Vol. 8, S. 146–155, 2011 PLANT FOSSILS IN THE CASSIAN BEDS AND OTHER CARNIAN FORMATIONS OF THE SOUTHERN ALPS (ITALY) Evelyn Kustatscher1, Fabrizio Bizzarrini2 & Guido Roghi3 Mit 16 Abbildungen und 3 Tabellen 1 Naturmuseum Südtirol, Bindergasse 1, 39100 Bozen, Italy 2 C/o Museo Civico di Rovereto, Borgo S. Caterina 41, I-38068 Rovereto 3 Istituto di Geoscienze e Georisorse-CNR-Sezione di Padova, c/o Dipartimento di Geoscienze, Università degli Studi di Padova, Padova, Italy. Introduction Triassic macrofloras in the Southern Alps are rare, and the majority of literature data is devoted to Ladinian plants. The first plant remain from the Southern Alps, a not better defined “fern fragment”, has been illustrated by Wissmann and Münster (1841). Later, several authors mentioned and figured plant fossils from the so-called “Buchensteiner Schichten”, “Wengener Schichten” and “alpiner Muschelkalk” of the Dolomites (e.g., Mojsisovics, 1879; Ogilvie Gor- don, 1927, 1934; Leonardi, 1953; for an overview see Wachtler & van Konijnenburg-van Cittert, 2000). Only Koken (1913) indicated badly preserved plant remains from the Heiligkreuz Schichten without describing or figuring them. Outside the Dolomites, only two more localities rich in Triassic plant remains were known: the Anisian flora of Re- coaro (e.g., De Zigno, 1862; Schenk, 1868) and the Carnian flora of Raibl/Cave del Predil (e.g., Bronn, 1858; Schenk, 1866-7, Stur, 1868, 1885). -
AUSTRIAN JOURNAL of EARTH SCIENCES Volume 98 2005
AUSTRIAN JOURNAL of EARTH SCIENCES [MITTEILUNGEN der ÖSTERREICHISCHEN GEOLOGISCHEN GESELLSCHAFT] an INTERNATIONAL JOURNAL of the AUSTRIAN GEOLOGICAL SOCIETY volume 98 2005 Gerd RANTITSCH & Barbara RUSSEGGER: Organic maturation within the Central Northern Calcareous Alps (Eastern Alps)________________________________ www.univie.ac.at/ajes EDITING: Grasemann Bernhard, Wagreich Michael PUBLISCHER: Österreichische Geologische Gesellschaft Rasumofskygasse 23, A-1031 Wien TYPESETTER: Irnberger Norbert, www.irnberger.net Copy-Shop Urban, Bahnstraße 26a, 2130 Mistelbach PRINTER: Holzhausen Druck & Medien GmbH Holzhausenplatz 1, 1140 Wien ISSN 0251-7493 Austrian Journal of Earth Sciences Volume 98 Vienna 2005 Organic maturation within the Central Northern Calca- reous Alps (Eastern Alps) Gerd RANTITSCH1) & Barbara RUSSEGGER2) KEYWORDS very low-grade metamorphism Northern Calcareous Alps 1) Department of Applied Geosciences and Geophysics, Montanuniversität Leoben, vitrinite reflectance Austria, A-8700 Leoben, Austria, Email: [email protected] thermal modeling Jurassic orogeny 2) Library of the University of Graz, A-8010 Graz, Austria Eastern Alps Abstract Organic maturation within the central Northern Calcareous Alps (Eastern Alps) has been investigated using vitrinite reflectance data from Upper Permian to Upper Cretaceous strata of the Stauffen-Höllengebirge Nappe, Dachstein Nappe, Tennengebirge Block and Lammer Unit. Within the Lammer Unit a metamorphic break is observed between the Strubberg Formation and the tectonically overlying -
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). -
Role of High-Angle Faults During Heteroaxial Contraction, Inntal Thrust Sheet, Northern Calcareous Alps, Western Austria
Festschrift zum 60. Geburtstag von Helfried Mostler Geol. Paläont. Mitt. Innsbruck, ISSN 0378-6870, Bd. 20, S. 389^06 ROLE OF HIGH-ANGLE FAULTS DURING HETEROAXIAL CONTRACTION, INNTAL THRUST SHEET, NORTHERN CALCAREOUS ALPS, WESTERN AUSTRIA Gerhard Eisbacher & Rainer Brandner With 7 figures Abstract: During Late Cretaceous/two-stage contraction of sedimentary strata within the Austroalpine accretionary wedge initial fold-thrust detachment and subsequent heteroaxial shortening were controlled by low-strength stratigraphie heterogen- eities and by the propagation of transverse high-angle faults. For the Inntal thrust sheet of the Northern Calcareous Alps (NC A) about 20 km of NW-directed thrust movement was accompanied by internal shortening and by distributed dextral displacement along NW-striking transfer faults by about 15 to 20 km. Thrust sheet segmentation along high- angle transfer faults led to significant relief between stratal panels of variable vergence and accounts for local depositi- on in and patchy preservation of Upper Cretaceous syndeformational clastic basins. One of the authors (R.B.) inter- prets orogen-parallel striking normal faults with Upper Cretaceous scarp breccias as an indication of today's NW-SE extension of the early alpine nappe edifice. Superimposed NNE-SSW-oriented heteroaxial contraction in latest Cretaceous-Paleogene time by about 10 km reac- tivated initial transfer faults as high-angle reverse faults, with a new set of NE-striking high-angle sinistrai faults pro- pagating from the footwall into the frontal Inntal hangingwall. This increased the plunge of pre-existing folds and pro- duced a new set of plunging folds within fault-bounded panels. High-angle faults thus accommodated polyphase shor- tening of the NCA-wedge and superimposed basins that formed along transverse zones with major structural relief. -
Lower Palaeozoic Evolution of the Northeast German Basin/Baltica Borderland
Originally published as: McCann, T. (1998): Lower Palaeozoic evolution of the NE German Basin/Baltica borderland. - Geological Magazine, 135, 129-142. DOI: 10.1017/S0016756897007863 Geol. Mag. 135 (1), 1998, pp. 129–142. Printed in the United Kingdom © 1998 Cambridge University Press 129 Lower Palaeozoic evolution of the northeast German Basin/Baltica borderland TOMMY MCCANN GeoForschungsZentrum (Projektbereich 3.3 – Sedimente und Beckenbildung), Telegrafenberg A26, 14473 Potsdam, Germany (Received 15 October 1996; accepted 11 July 1997) Abstract – The Vendian–Silurian succession from a series of boreholes in northeast Germany has been pet- rographically and geochemically investigated. Evidence suggests that the more northerly Vendian and Cambrian succession was deposited on a craton which became increasingly unstable in Ordovician times. Similarly, the Ordovician-age succession deposited in the Rügen area indicates a strongly active continental margin tectonic setting for the same period. By Silurian times the region was once more relatively tectoni- cally quiescent. Although complete closure of the Tornquist Sea was not complete until latest Silurian times, the major changes in tectonic regime in the Eastern Avalonia/Baltica area recorded from the Ordovician sug- gest that a significant degree of closure occurred during this time. The precise location of the southwestern edge of 1. Introduction Baltica (that is, that part of Baltica to the south of the The northeast German Basin is situated between the sta- Sorgenfrei-Tornquist Zone) is not known. This is largely ble Precambrian shield area of the Baltic Sea/Scandinavia as a result of masking by younger sediments (Tanner & to the north and the Cadomian/Caledonian/Variscan- Meissner, 1996). -
The Leba Ridge–Riga–Pskov Fault Zone – a Major East European Craton Interior Dislocation Zone and Its Role in the Early Palaeozoic Development of the Platform Cover
Estonian Journal of Earth Sciences, 2019, 68, 4, 161–189 https://doi.org/10.3176/earth.2019.12 The Leba Ridge–Riga–Pskov Fault Zone – a major East European Craton interior dislocation zone and its role in the early Palaeozoic development of the platform cover Igor Tuuling Institute of Ecology and Earth Sciences, University of Tartu, Ravila 14A, 50411 Tartu, Estonia; [email protected] Received 31 May 2019, accepted 23 July 2019, available online 24 October 2019 Abstract. Analysis of data published on basement faulting in the Baltic region makes it possible to distinguish the >700 km long East European Craton (EEC) interior fault zone extending from the Leba Ridge in the southern Baltic Sea across the Latvian cities of Liepaja and Riga to Pskov in Russia (LeRPFZ). The complex geometry and pattern of its faults, with different styles and flower structures, suggests that the LeRPFZ includes a significant horizontal component. Exceptionally high fault amplitudes with signs of pulsative activities reveal that the LeRPFZ has been acting as an early Palaeozoic tectonic hinge-line, accommodating bulk of the far-field stresses and dividing thus the NW EEC interior into NW and SW halves. The LeRPFZ has been playing a vital role in the evolution of the Baltic Ordovician–Silurian Basin, as a deep-facies protrusion of this basin (Livonian Tongue) extending into the remote NW EEC interior adheres to this fault zone. The Avalonia–Baltica collision record suggests that transpression with high shear stress, forcing the SE blocks in the LeRPFZ to move obliquely to the NE, reigned in the Ordovician. -
Field Trip B2: Triassic to Early Cretaceous Geodynamic History of the Central Northern Calcareous Alps (Northwestern Tethyan Realm)
ZOBODAT - www.zobodat.at Zoologisch-Botanische Datenbank/Zoological-Botanical Database Digitale Literatur/Digital Literature Zeitschrift/Journal: Berichte der Geologischen Bundesanstalt Jahr/Year: 2013 Band/Volume: 99 Autor(en)/Author(s): Gawlick Hans-Jürgen, Missoni Sigrid Artikel/Article: Field Trip B2: Triassic to Early Cretaceous geodynamic history of the central Northern Calcareous Alps (Northwestern Tethyan realm). 216-270 ©Geol. Bundesanstalt, Wien; download unter www.geologie.ac.at Berichte Geol. B.-A., 99 11th Workshop on Alpine Geological Studies & 7th IFAA Field Trip B2: Triassic to Early Cretaceous geodynamic history of the central Northern Calcareous Alps (Northwestern Tethyan realm) Hans-Jürgen Gawlick & Sigrid Missoni University of Leoben, Department of Applied Geosciences and Geophysics, Petroleum Geology, Peter-Tunner-Strasse 5, 8700 Leoben, Austria Content Abstract 1 Introduction 2 Overall geodynamic and sedimentary evolution 3 Palaeogeography, sedimentary successions and stratigraphy 3.1 Hauptdolomit facies zone 3.2 Dachstein Limestone facies zone 3.3 Hallstatt facies zone (preserved in the reworked Jurassic Hallstatt Mélange) 4 The Field Trip 4.1 The Late Triassic Dachstein/Hauptdolomit Carbonate Platform 4.1.1 Hauptdolomit (Mörtlbach road) 4.1.2 Lagoonal Dachstein Limestone: The classical Lofer cycle (Pass Lueg) 4.1.3 The Kössen Basin (Pass Lueg and Mörtlbach road) 4.2 Jurassic evolution 4.2.1 Hettangian to Aalenian 4.2.2 Bajocian to Tithonian 4.3 Early Cretaceous References Abstract The topic of this field trip is to get to know and understand the sedimentation of Austria’s Northern Calcareous Alps and its tectonic circumstances from Triassic rifting/drifting to Jurassic collision/accretion, and the Early Cretaceous “post-tectonic” sedimentary history. -
Palynology of the Kazanian Stratotype Section (Permian, Russia): Palaeoenvironmental and Palaeoclimatic Implications
Palynology of the Kazanian stratotype section (Permian, Russia): palaeoenvironmental and palaeoclimatic implications Annette E. Götz1,2 and Vladimir V. Silantiev2 1Rhodes University, Department of Geology, P.O. Box 94, Grahamstown 6140, South Africa, Email: [email protected] 2Kazan Federal University, 18 Kremlyovskaya St., Kazan 420008, Republic of Tatarstan, Russian Federation, Email: [email protected] Abstract Palynomorph assemblages reflect changes in land plant communities and are thus significant proxies to interpret palaeoenvironmental and palaeoclimatic changes. The Middle Permian of the East European Platform is crucial to the understanding of marine and non-marine palaeoclimate archives and interregional correlations of marine and non-marine successions, utilizing palaeoclimate signatures documented in the palynological record. New palynological data from the Kazanian stratotype section are presented and interpreted with respect to palaeoenvironment and palaeoclimate. This dataset will serve as a basis for ongoing studies on the type area of the Kazanian and the mid-Permian biodiversity patterns, preceding the end-Guadalupian crisis and the changes of the end-Permian biotic diversification followed by the most severe extinction event in Earth’s history at the Permian-Triassic boundary. Keywords Palaeoenvironment, Palaeoclimate, Palynology, Permian, Russia Introduction The East European Platform is a type region for the Permian system. One of the largest Permian sedimentary basins in the world (named after the Perm province of Russia; later in 1841 R. Murchison introduced this name for the geological system Permian) is located in this area. The Permian deposits cover stratigraphically a continuous succession representing more than 45 Ma of Earth’s history. The marine part of the succession comprises the Cisuralian Series consisting of the Asselian, Sakmarian, Artinskian, and Kungurian stages.