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Longitudinal and Temporal Evolution of the Tectonic Style Along The
Longitudinal and Temporal Evolution of the Tectonic Style Along the Cyprus Arc System, Assessed Through 2-D Reflection Seismic Interpretation Vasilis Symeou, Catherine Homberg, Fadi H. Nader, Romain Darnault, Jean-claude Lecomte, Nikolaos Papadimitriou To cite this version: Vasilis Symeou, Catherine Homberg, Fadi H. Nader, Romain Darnault, Jean-claude Lecomte, et al.. Longitudinal and Temporal Evolution of the Tectonic Style Along the Cyprus Arc System, Assessed Through 2-D Reflection Seismic Interpretation. Tectonics, American Geophysical Union (AGU), 2018, 37 (1), pp.30 - 47. 10.1002/2017TC004667. hal-01827497 HAL Id: hal-01827497 https://hal.sorbonne-universite.fr/hal-01827497 Submitted on 2 Jul 2018 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Longitudinal and Temporal Evolution of the Tectonic Style Along the Cyprus Arc System, Assessed Through 2-D Reflection Seismic Interpretation Vasilis Symeou1,2 , Catherine Homberg1, Fadi H. Nader2, Romain Darnault2, Jean-Claude Lecomte2, and Nikolaos Papadimitriou1,2 1ISTEP, Universite Pierre et Marie Curie, Paris, France, 2Geosciences Division, IFP Energies nouvelles, Rueil-Malmaison, Key Points: • Lateral changes from a compressional France to a strike-slip regime along the Cyprus Arc • Different crustal nature in the eastern Abstract The Cyprus Arc system constitutes a major active plate boundary in the eastern Mediterranean Mediterranean region. -
The North-Subducting Rheic Ocean During the Devonian: Consequences for the Rhenohercynian Ore Sites
Published in "International Journal of Earth Sciences 106(7): 2279–2296, 2017" which should be cited to refer to this work. The north-subducting Rheic Ocean during the Devonian: consequences for the Rhenohercynian ore sites Jürgen F. von Raumer1 · Heinz-Dieter Nesbor2 · Gérard M. Stampfli3 Abstract Base metal mining in the Rhenohercynian Zone activated Early Devonian growth faults. Hydrothermal brines has a long history. Middle-Upper Devonian to Lower Car- equilibrated with the basement and overlying Middle-Upper boniferous sediment-hosted massive sulfide deposits Devonian detrital deposits forming the SHMS deposits in the (SHMS), volcanic-hosted massive sulfide deposits (VHMS) southern part of the Pyrite Belt, in the Rhenish Massif and and Lahn-Dill-type iron, and base metal ores occur at sev- in the Harz areas. Volcanic-hosted massive sulfide deposits eral sites in the Rhenohercynian Zone that stretches from the (VHMS) formed in the more eastern localities of the Rheno- South Portuguese Zone, through the Lizard area, the Rhen- hercynian domain. In contrast, since the Tournaisian period ish Massif and the Harz Mountain to the Moravo-Silesian of ore formation, dominant pull-apart triggered magmatic Zone of SW Bohemia. During Devonian to Early Carbonif- emplacement of acidic rocks, and their metasomatic replace- erous times, the Rhenohercynian Zone is seen as an evolv- ment in the apical zones of felsic domes and sediments in ing rift system developed on subsiding shelf areas of the the northern part of the Iberian Pyrite belt, thus changing the Old Red continent. A reappraisal of the geotectonic setting general conditions of ore precipitation. -
The Segregation and Emplacement of Granitic Magmas
Journal of the Geological society, London, Vol. 144, 1987, pp. 281-297, 13 figs. Printed in Northern Ireland The segregation and emplacement of granitic magmas S. M. WICKHAM Division of Geological and Planetary Sciences California Institute of Technology, Pasadena, California 91125 USA Abstract: The segregation of granitic magma from residual crystals at low melt-fraction is strongly dependent on the viscosity of the melt. Theoretical considerations imply that for the typical range of granitic meltviscosities (104Pa S to 10” Pa S) only verylimited separation will bepossible by a compaction mechanism over the typical duration of a crustal melting event (c. 106years). Small-scale segregations (millimetre to metre) of the type observed in migmatite terranes may be generated by compaction (possiblyassisted by -continuousdeformation), or byflow of melt into extensional fractures, but low melt-fraction liquids are unlikely to be extracted to form large (kilometre-size) granitic plutons because of the limited separation efficiency. At higher melt-fractions (>30%) the rapid decrease in strengthand effectiveviscosity during partial meltingallows other segregation processes tooperate. Calculations and experiments indicate that in granitic systems the effective viscosity of partially melted rocks,having a very narrow melt fraction range of 30-50% will fall rapidly to levels at which convective overturn of kilometre-thick zones can occur. Convective motion within anatectic regionsis capable of generating large (kilometre-size) homogeneous, highcrystal- fraction, crustally-derived magma bodies, which are orders of magnitude greater insize than low melt-fraction segregates. Before convective instability is reached, small (centimetre- to metre-sized) pods of granitic liquid may rise buoyantly through, and pond at the top of such partly molten zones; such a process is consistent with the observation that some granulites appear to be residue rocks, chemically depleted in a minimum melt component. -
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. -
High-Resolution Imaging of the Pyrenees and Massif Central From
High-resolution imaging of the Pyrenees and Massif Central from the data of the PYROPE and IBERARRAY portable array deployments Sébastien Chevrot, Antonio Villaseñor, Matthieu Sylvander, Sébastien Benahmed, Eric Beucler, Glenn Cougoulat, Philippe Delmas, Michel De Saint Blanquat, Jordi Diaz, Josep Gallart, et al. To cite this version: Sébastien Chevrot, Antonio Villaseñor, Matthieu Sylvander, Sébastien Benahmed, Eric Beucler, et al.. High-resolution imaging of the Pyrenees and Massif Central from the data of the PYROPE and IBERARRAY portable array deployments. Journal of Geophysical Research, American Geophysical Union, 2014, 119 (8), pp.6399-6420. 10.1002/2014JB010953. insu-01066009 HAL Id: insu-01066009 https://hal-insu.archives-ouvertes.fr/insu-01066009 Submitted on 19 Sep 2014 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. JournalofGeophysicalResearch: SolidEarth RESEARCH ARTICLE High-resolution imaging of the Pyrenees and Massif Central 10.1002/2014JB010953 from the data of the PYROPE and IBERARRAY portable Key Points: array deployments • New tomographic images of the Pyrenees and Massif Central Sébastien Chevrot1, Antonio Villasenor˜ 2, Matthieu Sylvander1, Sébastien Benahmed1, Eric Beucler3, • The deep Pyrenean architecture is Glenn Cougoulat4, Philippe Delmas1, Michel de Saint Blanquat5, Jordi Diaz2, Josep Gallart2, segmented by NE-SW transfer zones Franck Grimaud1, Yves Lagabrielle6, Gianreto Manatschal7, Antoine Mocquet3, Hélène Pauchet1, Anne Paul4, Catherine Péquegnat4, Olivier Quillard3, Sandrine Roussel4, Correspondence to: Mario Ruiz2, and David Wolyniec4 S. -
The Geology of England – Critical Examples of Earth History – an Overview
The Geology of England – critical examples of Earth history – an overview Mark A. Woods*, Jonathan R. Lee British Geological Survey, Environmental Science Centre, Keyworth, Nottingham, NG12 5GG *Corresponding Author: Mark A. Woods, email: [email protected] Abstract Over the past one billion years, England has experienced a remarkable geological journey. At times it has formed part of ancient volcanic island arcs, mountain ranges and arid deserts; lain beneath deep oceans, shallow tropical seas, extensive coal swamps and vast ice sheets; been inhabited by the earliest complex life forms, dinosaurs, and finally, witnessed the evolution of humans to a level where they now utilise and change the natural environment to meet their societal and economic needs. Evidence of this journey is recorded in the landscape and the rocks and sediments beneath our feet, and this article provides an overview of these events and the themed contributions to this Special Issue of Proceedings of the Geologists’ Association, which focuses on ‘The Geology of England – critical examples of Earth History’. Rather than being a stratigraphic account of English geology, this paper and the Special Issue attempts to place the Geology of England within the broader context of key ‘shifts’ and ‘tipping points’ that have occurred during Earth History. 1. Introduction England, together with the wider British Isles, is blessed with huge diversity of geology, reflected by the variety of natural landscapes and abundant geological resources that have underpinned economic growth during and since the Industrial Revolution. Industrialisation provided a practical impetus for better understanding the nature and pattern of the geological record, reflected by the publication in 1815 of the first geological map of Britain by William Smith (Winchester, 2001), and in 1835 by the founding of a national geological survey. -
Microtectonic Measurements and Interpretation of the Mesozoic Formations in the Villány Hills and Görcsöny–Máriakéménd Ridge, Hungary
Central European Geology, Vol. 53/1, pp. 21–42 (2010) DOI: 10.1556/CEuGeol.53.2010.1.2 Microtectonic measurements and interpretation of the Mesozoic formations in the Villány Hills and Görcsöny–Máriakéménd Ridge, Hungary Attila Petrik Department of Regional Geology Eötvös Lóránd University, Budapest Within the framework of a National Research Fund project, different types of scientific investigations were carried out with the aim of a comprehensive paleogeographic reconstruction of the Tisza structural unit. As part of this project microtectonic measurements in the area of the Villány Hills and Görcsöny–Máriakéménd Ridge were carried out. Several publications have already appeared concerning the structural development of the Mecsek–Villány area (Csontos and Bergerat 1988, 1993; Benkovics 1997; Csontos et al. 2002), but in these the Villány Hills and their surroundings played a secondary role compared to the Mecsek Mountains. The goal of the present study was to establish the limits of the structural phases and determine their relative and absolute ages. An important issue has been to clarify to what degree the suggested events of structural deformation could be integrated into regional geologic processes. The tectonic conditions of the area of interest were studied through description and analysis of structural elements of 12 investigated quarries within it. Calculated stress field data were also analyzed. Seven quarries in the Villány Hills, five in the Görcsöny–Máriakéménd area, the data of over 650 striae, 550 joints, various ductile deformation elements (folds, flexures) as well as stylolites, were recorded. Integrating these structural elements into the regional geologic processes was of significant importance. Introduction and geologic background The Tisza Unit (Fig. -
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. -
Alpine Orogeny the Geologic Development of the Mediterranean
Alpine Orogeny The geologic development of the Mediterranean region is driven by the Alpine-Himalayan orogeny, a suturing of Gondwana-derived terranes with the Eurasion craton. In broad terms, this is a Mesozoic and Cenozoic convergent zone that extends from the Spain to Southeastern Asia and may extend along the southwest Pacific as far as New Zealand (Rosenbaum and Lister, 2002). The Alpine orogeny was caused by the convergence of the African and European plates (Frisch, 1979; Tricart, 1984; Haas et al., 1995) with peak collisional phases occurring at different times: Cretaceous in the Eastern Alps and Tertiary in the Western Alps (Schmid et al., 2004). Note: prior to the opening of the Paleotethys sea, the Variscan orogenic belt developed in central Europe then the Laurussian and Gondwana converged in the Devonian and Late Carboniferous. Although the location of the suture Extent of the Alpine-Himalayan orogenic belt is not clear, the orogenic belt was extensive, (Rosenbaum and Lister, 2002). running from the Bohemian Massif to the Alpine-Carpathian-Dinarides belt (). The Paleotethys sea existed in the Triassic but closed in the early Mesozoic due to convergence along the Cimmerian (and Indosinian) suture zone. The Paleotethys (or Tethys I) has been described as a wedge- shaped ocean that opened to the east, separating Eurasia from Africa, India, and Australia (Laurasia and Gondwana). Very little evidence of the Paleotethys exists today which has caused some to question its existence (Meyerhoff and Eremenko, 1976) The Tethys opened as Pangea broke up in the Early Jurassic and Africa moved east relative to Europe. -
World Map Showing Surface and Subsurface Distribution, and Lithologic Character of Middle and Late Neoproterozoic Rocks
World Map Showing Surface and Subsurface Distribution, and Lithologic Character of Middle and Late Neoproterozoic Rocks By John H. Stewart1 Open-File Report 2007-1087 2007 U.S. Department of the Interior U.S. Geological Survey 1 Menlo Park, Calif. U.S. Department of the Interior DIRK KEMPTHORNE, Secretary U.S. Geological Survey Mark D. Myers, Director U.S. Geological Survey, Reston, Virginia 2007 Revised and reprinted: 2007 For product and ordering information: World Wide Web: http://www.usgs.gov/pubprod Telephone: 1-888-ASK-USGS For more information on the USGS—the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment: World Wide Web: http://www.usgs.gov Telephone: 1-888-ASK-USGS Suggested citation: Stewart, John H., 2007, World map showing surface and subsurface distribution, and lithologic character of Middle and Late Neoproterozoic rocks: U.S. Geological Survey Open-File Report 2007-1087. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this report is in the public domain, permission must be secured from the individual copyright owners to reproduce any copyrighted material contained within this report. ii Contents Introduction......................................................................................................................... 3 Sources of information ........................................................................................................ 2 Africa [AF] -
A Template for an Improved Rock-Based Subdivision of the Pre-Cryogenian Timescale
Downloaded from http://jgs.lyellcollection.org/ by guest on September 28, 2021 Perspective Journal of the Geological Society Published Online First https://doi.org/10.1144/jgs2020-222 A template for an improved rock-based subdivision of the pre-Cryogenian timescale Graham A. Shields1*, Robin A. Strachan2, Susannah M. Porter3, Galen P. Halverson4, Francis A. Macdonald3, Kenneth A. Plumb5, Carlos J. de Alvarenga6, Dhiraj M. Banerjee7, Andrey Bekker8, Wouter Bleeker9, Alexander Brasier10, Partha P. Chakraborty7, Alan S. Collins11, Kent Condie12, Kaushik Das13, David A. D. Evans14, Richard Ernst15,16, Anthony E. Fallick17, Hartwig Frimmel18, Reinhardt Fuck6, Paul F. Hoffman19,20, Balz S. Kamber21, Anton B. Kuznetsov22, Ross N. Mitchell23, Daniel G. Poiré24, Simon W. Poulton25, Robert Riding26, Mukund Sharma27, Craig Storey2, Eva Stueeken28, Rosalie Tostevin29, Elizabeth Turner30, Shuhai Xiao31, Shuanhong Zhang32, Ying Zhou1 and Maoyan Zhu33 1 Department of Earth Sciences, University College London, London, UK 2 School of the Environment, Geography and Geosciences, University of Portsmouth, Portsmouth, UK 3 Department of Earth Science, University of California at Santa Barbara, Santa Barbara, CA, USA 4 Department of Earth and Planetary Sciences, McGill University, Montreal, Canada 5 Geoscience Australia (retired), Canberra, Australia 6 Instituto de Geociências, Universidade de Brasília, Brasilia, Brazil 7 Department of Geology, University of Delhi, Delhi, India 8 Department of Earth and Planetary Sciences, University of California, Riverside,