Wilfried Bauer

German University of Technology

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Joachim Jacobs

University of Bergen

Robert J. Thomas

Council for Geoscience

Ivan Callegari

German University of Technology

Andreas Scharf

Sultan Qaboos University

Gerhard Spaeth

RWTH Aachen University

Frank Mattern

Sultan Qaboos University

Joachim Jacobs

University of Bremen

Bernhard Pracejus

Sultan Qaboos University

Bert De Waele

Curtin University

Kathryn Goodenough

British Geological Survey

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British Geological Survey

RWTH Aachen University

German University of Technology

United States Geological Survey

Norwegian Geological Survey

Council for Geoscience

Posten (Norway)

TGS (United Kingdom)

Technical University of Munich

Australian National University

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Paleoarchean surface processes and volcanism: Insights from the eastern Iron Ore Group, Singhbhum craton, India

Earth-Science Reviews (2022)

Rajat Mazumder Trisrota Chaudhuri Shuvabrata De Wilfried Bauer Muzna Al Hadi

Ultramafic rock

Banded iron formation

Felsic

Mantle plume

10.1016/j.earscirev.2022.104122

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Citations (7)

German Expedition 1999/2000 to Gjelsvikfjella and Western Mühlig-Hofmann-Gebirge, Central Dronning Maud Land, Antarctica

Gondwana Research (2000)

Wilfried Bauer Jeffrey Bruce Jacobs

10.1016/s1342-937x(05)70764-4

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Vergleich ~1,1 Ga alter Terranes von Natal (Südafrika) und der Heimefrontfjella (West - Neuschwabenland / Antarktika)

Robert J. Thomas J. Jacobs Wilfried Bauer Karrie A. Weber Gerhard Spaeth

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Late Paleoarchean to Neoarchean sedimentation on the Singhbhum Craton, eastern India: a synthesis

Canadian Journal of Earth Sciences (2023)

Shuvabrata De Rajat Mazumder Trisrota Chaudhuri Wilfried Bauer

Subaerial rise of Earth's first continents took place 3.3–3.2 Ga years ago. This had significant influence on the ocean, atmosphere, and biosphere. Two important sedimentological consequences of continental emersion were (1) development of terrestrial (alluvial fan–fluvial–aeolian) depositional systems and (2) formation of shallow-marine sedimentary basins near the continental margin. Late Paleoarchean–Neoarchean terrestrial deposits, including development of an extensive paleosol around 3.2 Ga, and Meso–Neoarchean shallow-marine deposits have been reported from the Singhbhum Craton, eastern India from several localities. However, lateral and vertical changes in sedimentary facies associations and stratigraphic correlation between these terrestrial to shallow-marine sedimentary deposits have not yet been investigated. In this paper, we have reviewed the sedimentological characteristics of Late Paleoarchean to Neoarchean (3.2–2.8 Ga) stratigraphic successions of the Singhbhum Craton and have discussed sea level change and mode of stratigraphic sequence building. Our analysis shows that Singhbhum granitoid complex was emplaced around 3.3 Ga in an intracontinental setting, resulting in high continental freeboard conditions that triggered terrestrial (alluvial fan–braided fluvial) sedimentation (Dhosrapahar Formation). Continental sedimentation continued until ca. 3.0 Ga. In the eastern (Simlipal Group), western (Birtola Formation), and southwestern (the Mankarchua, Mahagiri, and Keonjhar formations) parts, shallow-marine sedimentation occurred after 3.0 Ga as a result of transgression. However, in the northern part (Dhanjori Formation), continental sedimentation prevailed throughout the Archean. These Late Paleoarchean to Neoarchean terrestrial and near-coastal successions of Singhbhum Craton should be the prime targets for intense geobiological research.

Continental Margin

Banded iron formation

10.1139/cjes-2022-0050

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THE GEOLOGY AND GEOCHEMISTRY OF THE EAST AFRICAN OROGEN IN NORTHEASTERN MOZAMBIQUE

South African Journal of Geology (2010)

Rognvald Boyd Øystein Nordgulen Ronald J. Thomas Bernard Bingen Terje Bjerkgård

Research Article| March 01, 2010 THE GEOLOGY AND GEOCHEMISTRY OF THE EAST AFRICAN OROGEN IN NORTHEASTERN MOZAMBIQUE R. BOYD; R. BOYD Geological Survey of Norway, N-7491 Trondheim, Norway, email: Rognvald.Boyd@ngu.no; Oystein.Nordgulen@ngu.no Search for other works by this author on: GSW Google Scholar Ø. NORDGULEN; Ø. NORDGULEN Geological Survey of Norway, N-7491 Trondheim, Norway, email: Rognvald.Boyd@ngu.no; Oystein.Nordgulen@ngu.no Search for other works by this author on: GSW Google Scholar R.J. THOMAS; R.J. THOMAS British Geological Survey, Keyworth, United Kingdom, email: bthomas@bgs.ac.uk Search for other works by this author on: GSW Google Scholar B. BINGEN; B. BINGEN Geological Survey of Norway, N-7491 Trondheim, Norway, email: Bernard.Bingen@ngu.no; Terje.Bjerkgard@ngu.no; Tor.Grenne@ngu.no; Iain.Henderson@ngu.no; Victor.Melezhik@ngu.no; Morten.Often@ngu.no; Jan.Sandstad@ngu.no; Arne.Solli@ngu.no; Einar.Tveten@ngu.no; Giulio.Viola@ngu.no Search for other works by this author on: GSW Google Scholar T. BJERKGÅRD; T. BJERKGÅRD Geological Survey of Norway, N-7491 Trondheim, Norway, email: Bernard.Bingen@ngu.no; Terje.Bjerkgard@ngu.no; Tor.Grenne@ngu.no; Iain.Henderson@ngu.no; Victor.Melezhik@ngu.no; Morten.Often@ngu.no; Jan.Sandstad@ngu.no; Arne.Solli@ngu.no; Einar.Tveten@ngu.no; Giulio.Viola@ngu.no Search for other works by this author on: GSW Google Scholar T. GRENNE; T. GRENNE Geological Survey of Norway, N-7491 Trondheim, Norway, email: Bernard.Bingen@ngu.no; Terje.Bjerkgard@ngu.no; Tor.Grenne@ngu.no; Iain.Henderson@ngu.no; Victor.Melezhik@ngu.no; Morten.Often@ngu.no; Jan.Sandstad@ngu.no; Arne.Solli@ngu.no; Einar.Tveten@ngu.no; Giulio.Viola@ngu.no Search for other works by this author on: GSW Google Scholar I. HENDERSON; I. HENDERSON Geological Survey of Norway, N-7491 Trondheim, Norway, email: Bernard.Bingen@ngu.no; Terje.Bjerkgard@ngu.no; Tor.Grenne@ngu.no; Iain.Henderson@ngu.no; Victor.Melezhik@ngu.no; Morten.Often@ngu.no; Jan.Sandstad@ngu.no; Arne.Solli@ngu.no; Einar.Tveten@ngu.no; Giulio.Viola@ngu.no Search for other works by this author on: GSW Google Scholar V.A. MELEZHIK; V.A. MELEZHIK Geological Survey of Norway, N-7491 Trondheim, Norway, email: Bernard.Bingen@ngu.no; Terje.Bjerkgard@ngu.no; Tor.Grenne@ngu.no; Iain.Henderson@ngu.no; Victor.Melezhik@ngu.no; Morten.Often@ngu.no; Jan.Sandstad@ngu.no; Arne.Solli@ngu.no; Einar.Tveten@ngu.no; Giulio.Viola@ngu.no Search for other works by this author on: GSW Google Scholar M. OFTEN; M. OFTEN Geological Survey of Norway, N-7491 Trondheim, Norway, email: Bernard.Bingen@ngu.no; Terje.Bjerkgard@ngu.no; Tor.Grenne@ngu.no; Iain.Henderson@ngu.no; Victor.Melezhik@ngu.no; Morten.Often@ngu.no; Jan.Sandstad@ngu.no; Arne.Solli@ngu.no; Einar.Tveten@ngu.no; Giulio.Viola@ngu.no Search for other works by this author on: GSW Google Scholar J.S. SANDSTAD; J.S. SANDSTAD Geological Survey of Norway, N-7491 Trondheim, Norway, email: Bernard.Bingen@ngu.no; Terje.Bjerkgard@ngu.no; Tor.Grenne@ngu.no; Iain.Henderson@ngu.no; Victor.Melezhik@ngu.no; Morten.Often@ngu.no; Jan.Sandstad@ngu.no; Arne.Solli@ngu.no; Einar.Tveten@ngu.no; Giulio.Viola@ngu.no Search for other works by this author on: GSW Google Scholar A. SOLLI; A. SOLLI Geological Survey of Norway, N-7491 Trondheim, Norway, email: Bernard.Bingen@ngu.no; Terje.Bjerkgard@ngu.no; Tor.Grenne@ngu.no; Iain.Henderson@ngu.no; Victor.Melezhik@ngu.no; Morten.Often@ngu.no; Jan.Sandstad@ngu.no; Arne.Solli@ngu.no; Einar.Tveten@ngu.no; Giulio.Viola@ngu.no Search for other works by this author on: GSW Google Scholar E. TVETEN; E. TVETEN Geological Survey of Norway, N-7491 Trondheim, Norway, email: Bernard.Bingen@ngu.no; Terje.Bjerkgard@ngu.no; Tor.Grenne@ngu.no; Iain.Henderson@ngu.no; Victor.Melezhik@ngu.no; Morten.Often@ngu.no; Jan.Sandstad@ngu.no; Arne.Solli@ngu.no; Einar.Tveten@ngu.no; Giulio.Viola@ngu.no Search for other works by this author on: GSW Google Scholar G. VIOLA; G. VIOLA Geological Survey of Norway, N-7491 Trondheim, Norway, email: Bernard.Bingen@ngu.no; Terje.Bjerkgard@ngu.no; Tor.Grenne@ngu.no; Iain.Henderson@ngu.no; Victor.Melezhik@ngu.no; Morten.Often@ngu.no; Jan.Sandstad@ngu.no; Arne.Solli@ngu.no; Einar.Tveten@ngu.no; Giulio.Viola@ngu.no Search for other works by this author on: GSW Google Scholar R.M. KEY; R.M. KEY Institute of Geology & Mineralogy of Spain, Madrid, Spain, email: e.gonzalez@igme.es Search for other works by this author on: GSW Google Scholar R.A. SMITH; R.A. SMITH Institute of Geology & Mineralogy of Spain, Madrid, Spain, email: e.gonzalez@igme.es Search for other works by this author on: GSW Google Scholar E. GONZALEZ; E. GONZALEZ British Geological Survey, Edinburgh, United Kingdom, email: rmk@bgs.ac.uk; ras@bgs.ac.uk Search for other works by this author on: GSW Google Scholar L.J. HOLLICK; L.J. HOLLICK British Geological Survey, Exeter, United Kingdom, email: lhollick@bgs.ac.uk Search for other works by this author on: GSW Google Scholar J. JACOBS; J. JACOBS Department of Earth Sciences, University of Bergen, Norway., email: joachim.jacobs@geo.uib.no Search for other works by this author on: GSW Google Scholar D. JAMAL; D. JAMAL University Eduardo Mondlane, Maputo, Mozambique, email: daud.jamal@uem.mz Search for other works by this author on: GSW Google Scholar G. MOTUZA; G. MOTUZA Department of Geology & Mineralogy, University of Vilnius, Lithuania, email: Gediminas.Motuza@gf.vu.lt Search for other works by this author on: GSW Google Scholar W. BAUER; W. BAUER Aziana Exploration, Antananarivo, Madagascar, email: bauer.geol@web.de Search for other works by this author on: GSW Google Scholar E. DAUDI; E. DAUDI National Directorate of Geology, Maputo, Mozambique, email: edaudi@tvcabo.co.mz Search for other works by this author on: GSW Google Scholar P. FEITIO; P. FEITIO National Directorate of Geology, Maputo, Mozambique, email: edaudi@tvcabo.co.mz Search for other works by this author on: GSW Google Scholar V. MANHICA; V. MANHICA National Directorate of Geology, Maputo, Mozambique, email: edaudi@tvcabo.co.mz Search for other works by this author on: GSW Google Scholar A. MONIZ; A. MONIZ National Directorate of Geology, Maputo, Mozambique, email: edaudi@tvcabo.co.mz Search for other works by this author on: GSW Google Scholar D. ROSSE D. ROSSE National Directorate of Geology, Maputo, Mozambique, email: edaudi@tvcabo.co.mz Search for other works by this author on: GSW Google Scholar Author and Article Information R. BOYD Geological Survey of Norway, N-7491 Trondheim, Norway, email: Rognvald.Boyd@ngu.no; Oystein.Nordgulen@ngu.no Ø. NORDGULEN Geological Survey of Norway, N-7491 Trondheim, Norway, email: Rognvald.Boyd@ngu.no; Oystein.Nordgulen@ngu.no R.J. THOMAS British Geological Survey, Keyworth, United Kingdom, email: bthomas@bgs.ac.uk B. BINGEN Geological Survey of Norway, N-7491 Trondheim, Norway, email: Bernard.Bingen@ngu.no; Terje.Bjerkgard@ngu.no; Tor.Grenne@ngu.no; Iain.Henderson@ngu.no; Victor.Melezhik@ngu.no; Morten.Often@ngu.no; Jan.Sandstad@ngu.no; Arne.Solli@ngu.no; Einar.Tveten@ngu.no; Giulio.Viola@ngu.no T. BJERKGÅRD Geological Survey of Norway, N-7491 Trondheim, Norway, email: Bernard.Bingen@ngu.no; Terje.Bjerkgard@ngu.no; Tor.Grenne@ngu.no; Iain.Henderson@ngu.no; Victor.Melezhik@ngu.no; Morten.Often@ngu.no; Jan.Sandstad@ngu.no; Arne.Solli@ngu.no; Einar.Tveten@ngu.no; Giulio.Viola@ngu.no T. GRENNE Geological Survey of Norway, N-7491 Trondheim, Norway, email: Bernard.Bingen@ngu.no; Terje.Bjerkgard@ngu.no; Tor.Grenne@ngu.no; Iain.Henderson@ngu.no; Victor.Melezhik@ngu.no; Morten.Often@ngu.no; Jan.Sandstad@ngu.no; Arne.Solli@ngu.no; Einar.Tveten@ngu.no; Giulio.Viola@ngu.no I. HENDERSON Geological Survey of Norway, N-7491 Trondheim, Norway, email: Bernard.Bingen@ngu.no; Terje.Bjerkgard@ngu.no; Tor.Grenne@ngu.no; Iain.Henderson@ngu.no; Victor.Melezhik@ngu.no; Morten.Often@ngu.no; Jan.Sandstad@ngu.no; Arne.Solli@ngu.no; Einar.Tveten@ngu.no; Giulio.Viola@ngu.no V.A. MELEZHIK Geological Survey of Norway, N-7491 Trondheim, Norway, email: Bernard.Bingen@ngu.no; Terje.Bjerkgard@ngu.no; Tor.Grenne@ngu.no; Iain.Henderson@ngu.no; Victor.Melezhik@ngu.no; Morten.Often@ngu.no; Jan.Sandstad@ngu.no; Arne.Solli@ngu.no; Einar.Tveten@ngu.no; Giulio.Viola@ngu.no M. OFTEN Geological Survey of Norway, N-7491 Trondheim, Norway, email: Bernard.Bingen@ngu.no; Terje.Bjerkgard@ngu.no; Tor.Grenne@ngu.no; Iain.Henderson@ngu.no; Victor.Melezhik@ngu.no; Morten.Often@ngu.no; Jan.Sandstad@ngu.no; Arne.Solli@ngu.no; Einar.Tveten@ngu.no; Giulio.Viola@ngu.no J.S. SANDSTAD Geological Survey of Norway, N-7491 Trondheim, Norway, email: Bernard.Bingen@ngu.no; Terje.Bjerkgard@ngu.no; Tor.Grenne@ngu.no; Iain.Henderson@ngu.no; Victor.Melezhik@ngu.no; Morten.Often@ngu.no; Jan.Sandstad@ngu.no; Arne.Solli@ngu.no; Einar.Tveten@ngu.no; Giulio.Viola@ngu.no A. SOLLI Geological Survey of Norway, N-7491 Trondheim, Norway, email: Bernard.Bingen@ngu.no; Terje.Bjerkgard@ngu.no; Tor.Grenne@ngu.no; Iain.Henderson@ngu.no; Victor.Melezhik@ngu.no; Morten.Often@ngu.no; Jan.Sandstad@ngu.no; Arne.Solli@ngu.no; Einar.Tveten@ngu.no; Giulio.Viola@ngu.no E. TVETEN Geological Survey of Norway, N-7491 Trondheim, Norway, email: Bernard.Bingen@ngu.no; Terje.Bjerkgard@ngu.no; Tor.Grenne@ngu.no; Iain.Henderson@ngu.no; Victor.Melezhik@ngu.no; Morten.Often@ngu.no; Jan.Sandstad@ngu.no; Arne.Solli@ngu.no; Einar.Tveten@ngu.no; Giulio.Viola@ngu.no G. VIOLA Geological Survey of Norway, N-7491 Trondheim, Norway, email: Bernard.Bingen@ngu.no; Terje.Bjerkgard@ngu.no; Tor.Grenne@ngu.no; Iain.Henderson@ngu.no; Victor.Melezhik@ngu.no; Morten.Often@ngu.no; Jan.Sandstad@ngu.no; Arne.Solli@ngu.no; Einar.Tveten@ngu.no; Giulio.Viola@ngu.no R.M. KEY Institute of Geology & Mineralogy of Spain, Madrid, Spain, email: e.gonzalez@igme.es R.A. SMITH Institute of Geology & Mineralogy of Spain, Madrid, Spain, email: e.gonzalez@igme.es E. GONZALEZ British Geological Survey, Edinburgh, United Kingdom, email: rmk@bgs.ac.uk; ras@bgs.ac.uk L.J. HOLLICK British Geological Survey, Exeter, United Kingdom, email: lhollick@bgs.ac.uk J. JACOBS Department of Earth Sciences, University of Bergen, Norway., email: joachim.jacobs@geo.uib.no D. JAMAL University Eduardo Mondlane, Maputo, Mozambique, email: daud.jamal@uem.mz G. MOTUZA Department of Geology & Mineralogy, University of Vilnius, Lithuania, email: Gediminas.Motuza@gf.vu.lt W. BAUER Aziana Exploration, Antananarivo, Madagascar, email: bauer.geol@web.de E. DAUDI National Directorate of Geology, Maputo, Mozambique, email: edaudi@tvcabo.co.mz P. FEITIO National Directorate of Geology, Maputo, Mozambique, email: edaudi@tvcabo.co.mz V. MANHICA National Directorate of Geology, Maputo, Mozambique, email: edaudi@tvcabo.co.mz A. MONIZ National Directorate of Geology, Maputo, Mozambique, email: edaudi@tvcabo.co.mz D. ROSSE National Directorate of Geology, Maputo, Mozambique, email: edaudi@tvcabo.co.mz Publisher: Geological Society of South Africa First Online: 09 Mar 2017 Online ISSN: 1996-8590 Print ISSN: 1012-0750 © 2010 Geological Society of South Africa South African Journal of Geology (2010) 113 (1): 87–129. https://doi.org/10.2113/gssajg.113.1.87 Article history First Online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation R. BOYD, Ø. NORDGULEN, R.J. THOMAS, B. BINGEN, T. BJERKGÅRD, T. GRENNE, I. HENDERSON, V.A. MELEZHIK, M. OFTEN, J.S. SANDSTAD, A. SOLLI, E. TVETEN, G. VIOLA, R.M. KEY, R.A. SMITH, E. GONZALEZ, L.J. HOLLICK, J. JACOBS, D. JAMAL, G. MOTUZA, W. BAUER, E. DAUDI, P. FEITIO, V. MANHICA, A. MONIZ, D. ROSSE; THE GEOLOGY AND GEOCHEMISTRY OF THE EAST AFRICAN OROGEN IN NORTHEASTERN MOZAMBIQUE. South African Journal of Geology 2010;; 113 (1): 87–129. doi: https://doi.org/10.2113/gssajg.113.1.87 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietySouth African Journal of Geology Search Advanced Search Abstract The geology of northeastern Mozambique has been remapped at 1:250 000 scale. Proterozoic rocks, which make up the bulk of the area, form a number of gneiss complexes defined on the basis of their lithologies, metamorphic grade, structures, tectonic relationships and ages. The gneiss complexes, which contain both ortho- and paragneisses, range from Palaeo- to Neoproterozoic in age, and were juxtaposed along tectonic contacts during the late Neoproterozoic to Cambrian Pan-African Orogeny. In this paper we describe the geological evolution of the terranes north of the Lurio Belt, a major tectonic boundary which separates the complexes described in this paper from the Nampula Complex to the south. The Marrupa, Nairoto and Meluco Complexes are dominated by orthogneisses of felsic to intermediate compositions. Granulitic rocks, including charnockites, are present in the Unango, M'Sawize, Xixano and Ocua Complexes (the last forms the centre of the Lurio Belt). The Neoproterozoic Geci and Txitonga Groups are dominated by metasupracrustal rocks at low metamorphic grades and have been tectonically juxtaposed with the Unango Complex. Geochemical data integrate and support a model of terrain assembly in northeast Mozambique, which is largely published and mainly derived from our new geochronological, lithostratigraphic and structural work. This model shows the contrast between the mainly felsic lower tectonostratigraphic levels (Unango, Marrupa, Nairoto and Meluco Complexes) and the significantly more juvenile overlying complexes (Xixano, Muaquia, M'Sawize, Lalamo and Montepuez Complexes), which were all assembled during the Cambrian Pan-African orogeny. The juxtaposed terranes were stitched by several suites of Cambrian late- to post-tectonic granitoids. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.

10.2113/gssajg.113.1.87

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Citations (57)

Approach to a 3D-balanced model of the foreland-fold-and-thrust-belt of the Bashkirian anticlinorium, SW Ural

S. Ladage В. В. Козлов Ulrich A. Glasmacher Wilfried Bauer U. Giese

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Late Lutetian (Eocene) mafic intrusion into shallow marine platform deposits north of the Oman Mountains (Rusayl Embayment) and its tectonic significance

Journal of African Earth Sciences (2020)

Andreas Scharf Masafumi Sudo Bernhard Pracejus Frank Mattern Ivan Callegari

10.1016/j.jafrearsci.2020.103941

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Permian sedimentary cover, Heimefrontfjella, western Dronning Maud Land (East Antarctica)

Wilfried Bauer

In the northern Heimefrontfjella, ten sites are known where relics of a Permian sedimentary cover are preserved. The sedimentary rocks contain micro- and macro flora, proving an early Permian age. Flora and sedimento- logy are indicative for a cold climate deposition in a fluviomarine environ- ment, immediately after ice retreat at the end of the Permocarboniferous glaciation. The present exposure pattern is a result of early Cretaceous block faulting, related to the beginning Gondwana break-up. Zusammenfassung: In der nordlichen Heimefrontfjella sind an zehn Stellen Reste eines permischen Deckgebirges aufgeschlossen. Die Sedimentgesteine enthalten eine Mikro- und Makroflora, die ein fruhpermisches Alter der Schichten belegen. Flora und Sedimentologie sind typisch fur eine kaltzeit- liche fluviomarine Ablagerung, unmittelbar anschliesend an die permokar- bone Vereisung. Das heutige Verbreitungsmuster der Deckgebirgsreste spiegelt eine fruhkretazische Bruchtektonik beim beginnenden Zerfall Gond- wanas wider.

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Cover sequences at the northern margin of the Antongil Craton, NE Madagascar

Precambrian Research (2011)

Wilfried Bauer Gregory J. Walsh Bert De Waele Robert J. Thomas Matthew Horstwood

Basement

Conglomerate

Felsic

10.1016/j.precamres.2011.07.018

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Effects of the Indian Ocean Monsoon oscillation during the Pleistocene-Holocene transition on the palinomorphic records in the NW Arabian Sea.

Patrícia Rodrigues Hermann Behling Gösta Hoffmann Wilfried Bauer

The Indian Ocean Monsoon is one of the largest land-ocean coupled events on Earth. Its occurrence is not only of climatic importance but also has a considerable economic impact on the livelihood of people/countries within its coverage zone. The monsoon winds travelling over the Arabian Sea (AS) carry moisture and bring rainfall to the southern part of the Sultanate of Oman and over a broad area of the Indian continent. In addition to rainfall, the monsoon also causes an intense and extensive deep-water upwelling along the coast and offshore of East Africa and the southern Arabian Peninsula. This intense and pronounced upwelling increases the productivity turning the western Arabian Sea into one of the most productive regions in the world.  In this poster we display partial results of a high-resolution study aiming at identifying monsoonal climatic changes recorded in marine sediments from the northwestern Arabian Sea during the late Pleistocene-Mid Holocene. It was carried out on 11 samples taken from an offshore core IODP Leg 117-721A-1H-1-W. An interval from 80 to 30 cm has been selected and samples have been taken every 3 cm.  We show here results obtained from 6 radiocarbon dating together with the study of palynomorphs. The main objective is to qualitatively identify and characterize pollen grains and spores, as well as the non-pollen palynomorphs (NPP) present in the samples, correlating them with other study sites in the AS. In addition, we evaluate their potential as paleoenvironmental indicators. Samples have presented a low number of pollen grains and spore, which has ranged from 3 to 27 identified specimens. The deeper/older samples have presented a higher concentration of pollen grains. However, due to the low content of specimens, quantitative paleoenvironmental conclusion could not be drawn. Nonetheless, non-pollen palynomorphs are relatively abundant throughout samples. Dinocysts represent the most abundant type of NPP, followed by fungi, microscopic remains of algae and others still not identified. Palynological studies carried on the NW Arabian Sea are scarce and NPP identification and characterization have not been done at the study site yet. Therefore, our work presents novelty on recognizing palinomorphic imprints left by Indian Ocean Monsoon oscillation during the transition Pleistocene-Holocene off the Omani coast.

Peninsula

10.5194/egusphere-egu23-11475

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