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  • 1
    Online Resource
    Online Resource
    Orogenic Processes in the Alpine Collision Zone : Selected Contributions from the 8th Workshop on Alpine Geological Studies, Davos, Switzerland 2007. (2009)
    Basel :Springer Basel AG,
    Details
    Keywords: Orogeny -- Congresses. ; Geology, Structural -- Congresses. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (311 pages)
    Edition: 1st ed.
    ISBN: 9783764399504
    Series Statement: Swiss Journal of Geosciences Supplement Series ; v.3
    URL: https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=511295
    DDC: 551.82
    Language: English
    Note: Intro -- CONTENTS -- Orogenic processes in the Alpine collision zone -- Foreland and Hinterland basins: what controls their evolution? -- Provenance of the Bosnian Flysch -- Late Jurassic tectonics and sedimentation: breccias in the Unken syncline, central Northern Calcareous Alps -- The Pfitsch-Mörchner Basin, an example of the post-Variscan sedimentary evolution in the Tauern Window (Eastern Alps) -- Multistage shortening in the Dauphiné zone (French Alps): the record of Alpine collision and implications for pre-Alpine restoration -- The metamorphic evolution of migmatites from the Ötztal Complex (Tyrol, Austria) and constraints on the timing of the pre-Variscan high-T event in the Eastern Alps -- From subduction to collision: thermal overprint of HP/LT metasediments in the north-eastern Lepontine Dome (Swiss Alps) and consequences regarding the tectono-metamorphic evolution of the Alpine orogenic wedge -- Tertiary tectono-metamorphic evolution of the European margin during Alpine collison: example of the Leventina Nappe (Central Alps, Switzerland) -- Vol -- Lu-Hf garnet geochronology of eclogites from the Balma Unit (Pennine Alps): implications for Alpine paleotectonic reconstructions -- Tracing the exhumation of the Eclogite Zone (Tauern Window, Eastern Alps) by 40 Ar/ 39 Ar dating of white mica in eclogites -- Mapping of the post-collisional cooling history of the Eastern Alps -- Apatite fission track and (U-Th)/He thermochronology of the Rochovce granite (Slovakia) - implications for the thermal evolution of the Western Carpathian-Pannonian region -- Fault slip analysis in the Koralm Massif (Eastern Alps) and consequences for the final uplift of "cold spots" in Miocene times -- Miocene emplacement and rapid cooling of the Pohorje pluton at the Alpine-Pannonian-Dinaridic junction, Slovenia. , A map-view restoration of the Alpine-Carpathian-Dinaridic system for the Early Miocene -- The Rila-Pastra Normal Fault and multi-stage extensional unroofing in the Rila Mountains (SW Bulgaria).
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  • 2
    Online Resource
    Online Resource
    Tectonic aspects of the Alpine-Dinaride-Carpathian system (2008)
    Details Availability
    Keywords: Geology, Structural ; Geology, Structural ; Geology, Structural ; Geodynamics ; Geodynamics ; Geodynamics ; Aufsatzsammlung ; Alpen ; Tektonik ; Dinarisches Gebirge ; Karpaten
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (VIII, 448 Seiten)
    ISBN: 9781862392526
    Series Statement: Geological Society special publication 298
    URL: http://sp.lyellcollection.org/content/298/1
    DDC: 554.947
    RVK:
    RK 15121
    RVK:
    RL 60121
    RVK:
    RP 40121
    Language: English
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  • 3
    Online Resource
    Online Resource
    Non-volcanic rifting of continental margins : a comparison of evidence from land and sea (2001)
    Details Availability
    Keywords: Continental margins ; Rifts (Geology) ; Continental margins ; Rifts (Geology) ; Aufsatzsammlung ; Rifting ; Kontinentalrand ; Schelf ; Geologie ; Tektonik ; Kontinentalrand ; Rifting
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (585 Seiten)
    ISBN: 1862390916
    Series Statement: Geological Society special publication 187
    URL: http://sp.lyellcollection.org/content/187/1
    URL: http://www.gbv.de/dms/bowker/toc/9781862390911.pdf
    DDC: 551.136
    RVK:
    RB 10121
    Language: English
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  • 4
    Online Resource
    Online Resource
    Schlussbericht : Förderzeitraum: 01.07.2013-31.03.2019 (2019)
    [Kiel] : Christian-Albrechts-Universität zu Kiel
    Details Availability
    Keywords: Forschungsbericht ; Neutronendiffraktometrie ; Kristallstrukturanalyse
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (18 Seiten, 319,87 KB)
    URL: https://doi.org/10.2314/KXP:1686318340
    DOI: 10.2314/KXP:1686318340
    Language: German
    Note: Förderkennzeichen BMBF 05K13FKB , Unterschiede zwischen dem gedruckten Dokument und der elektronischen Ressource können nicht ausgeschlossen werden
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  • 5
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    Fluid‐driven transformation of blueschist to vein eclogite during the Early Eocene in a subducted sliver of continental crust (Monte Emilius, Italian Western Alps) (2021)
    Details
    Publication Date: 2023-10-26
    Description: 〈title xmlns:mml="http://www.w3.org/1998/Math/MathML"〉Abstract〈/title〉〈p xmlns:mml="http://www.w3.org/1998/Math/MathML" xml:lang="en"〉In the Penninic nappe stack of the Western Alps, high‐ to ultrahigh‐pressure metamorphic ophiolites of the Zermatt‐Saas Zone are associated with slivers of continental crust. In one of these slivers, Monte Emilius, the overprinting of pre‐Alpine granulite‐facies rocks by subduction‐related, Alpine eclogite‐facies metamorphism can be studied. Mafic granulites were initially transformed into blueschists. In a second step, shear zones were developed in which the blueschists recrystallized to fine‐grained, foliated glaucophane eclogites, and eclogite veins. The combination of petrographic and field observations as well as whole‐rock compositions suggests that the eclogite assemblage formed only in shear zones where Ca‐metasomatism induced a change in major element composition. These substantial differences in bulk rock composition demonstrate how spatially limited eclogitization may be controlled by chemical redistribution, the degree of fabric development, and associated metamorphic reactions along fluid pathways. Thermodynamic modelling of selected bulk rock compositions yielded only slightly different conditions of 1.8 ± 0.1 GPa/550 ± 50°C for blueschist and 1.9–2.3 GPa/550 ± 50°C for eclogite, constraining Ca‐rich fluid infiltration and transformation to a depth of ~60–70 km. Eclogitization occurred in the Early Eocene at 52.96 ± 0.91 Ma, as indicated by a well‐defined Lu–Hf garnet isochron.〈/p〉
    Description: Deutsche Forschungsgemeinschaft (DFG) http://dx.doi.org/10.13039/501100001659
    Keywords: ddc:552.4 ; eclogite ; Lu–Hf garnet geochronology ; Monte Emilius ; subduction ; thermodynamic modelling ; Zermatt–Saas zone
    Language: English
    Type: doc-type:article
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  • 6
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    Constraining the process of intracontinental subduction in the Austroalpine Nappes: Implications from petrology and Lu‐Hf geochronology of eclogites (2021)
    Details
    Publication Date: 2023-12-16
    Description: 〈title xmlns:mml="http://www.w3.org/1998/Math/MathML"〉Abstract〈/title〉〈p xmlns:mml="http://www.w3.org/1998/Math/MathML" xml:lang="en"〉High‐ and ultrahigh‐pressure rocks occur in the Austroalpine Nappes in a ~400 km long belt from the Texel Complex in the west to the Sieggraben Unit in the east. Garnet growth during pressure increase was dated using Lu‐Hf chronometry. The results range between c. 100 and 90 Ma, indicating a short‐lived period of subduction. Combined with already published data, our estimates of metamorphic conditions indicate a field gradient with increasing pressure and temperature from the northwest to the southeast, where the rocks experienced ultrahigh‐pressure metamorphism. The P‐T conditions of the eclogites generally lie on the ‘warm’ side of the global range of subduction‐zone metamorphic conditions. The oldest Cretaceous eclogites (c. 100 Ma) are found in the Saualpe‐Koralpe area derived from widespread gabbros formed during Permian to Triassic rifting. In the Texel Complex garnets showing two growth phases yielded a Variscan‐Eoalpine mixed age indicating re‐subduction of Variscan eclogite‐bearing continental crust during the Eoalpine orogeny. Jurassic blueschist‐facies metamorphism at Meliata in the Western Carpathians and Cretaceous eclogite‐facies metamorphism in the Austroalpine are separated by a time gap of c. 50 Ma and therefore do not represent a transition from oceanic to continental subduction but rather separate events. Thus, we propose that subduction initiation was intracontinental at the site of a Permian rift.〈/p〉
    Description: German Science Foundation (DFG)
    Description: Slovak Research and Development Agency http://dx.doi.org/10.13039/501100005357
    Keywords: ddc:552.4 ; Eastern Alps ; Eoalpine (Cretaceous) event ; high‐pressure metamorphism ; thermodynamic modelling ; Lu‐Hf geochronology
    Language: English
    Type: doc-type:article
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  • 7
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    Reuniting the Ötztal Nappe: the tectonic evolution of the Schneeberg Complex (2021)
    Springer Berlin Heidelberg
    Details
    Publication Date: 2023-07-21
    Description: The Ötztal Nappe in the Eastern Alps is a thrust sheet of Variscan metamorphic basement rocks and their Mesozoic sediment cover. It has been argued that the main part of the Ötztal Nappe and its southeastern part, the Texel Complex, belong to two different Austroalpine nappe systems and are separated by a major tectonic contact. Different locations have been proposed for this boundary. We use microprobe mapping of garnet and structural field geology to test the hypothesis of such a tectonic separation. The Pre-Mesozoic rocks in the area include several lithotectonic units: Ötztal Complex s.str., Texel Complex, Laas Complex, Schneeberg Complex, and Schneeberg Frame Zone. With the exception of the Schneeberg Complex which contains only single-phased (Eoalpine, i.e. Late Cretaceous) garnet, all these units have two-phased garnet with Variscan cores and Eoalpine rims. The Schneeberg Complex represents Paleozoic sediments with only low-grade (sub-garnet-grade) Variscan metamorphism which was thrust over the other units and their Mesozoic cover (Brenner Mesozoic) during an early stage of the Eoalpine orogeny, before the peak of Eoalpine metamorphism and garnet growth. Folding of the thrust later modified the structural setting so that the Schneeberg Thrust was locally inverted and the Schneeberg Complex came to lie under the Ötztal Complex s.str. The hypothesized Ötztal/Texel boundaries of earlier authors either cut across undisturbed lithological layering or are unsupported by any structural evidence. Our results support the existence of one coherent Ötztal Nappe, including the Texel Complex, and showing a southeastward increase of Eoalpine metamorphism which resulted from southeastward subduction.
    Description: Deutsche Forschungsgemeinschaft http://dx.doi.org/10.13039/501100001659
    Description: Rheinische Friedrich-Wilhelms-Universität Bonn (1040)
    Keywords: ddc:551.8 ; Eastern Alps ; Austroalpine basement ; Garnet ; Eo-Alpine orogeny ; Ötztal Nappe ; Schneeberg Complex
    Language: English
    Type: doc-type:article
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  • 8
    Electronic Resource
    Electronic Resource
    Offshore granulites from the Bay of Biscay margins: fission tracks constrain a Proterozoic to Tertiary thermal history (2003)
    Oxford, UK : Blackwell Science Ltd
    Terra nova 15 (2003), S. 0 
    Details
    ISSN: 1365-3121
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: Zircon and apatite fission track ages were determined on granulites dredged along the Bay of Biscay margins. A sample from Ortegal Spur (Iberia margin) yielded 725 ± 67 Ma (zircon). A sample from Le Danois Bank (Iberia margin) yielded 284 ± 58 Ma (zircon), indicating post-Variscan cooling. Apatite from this sample gave 52 ± 2 Ma, interpreted as final cooling after ‘Pyrenean’ thrust imbrication. Two other samples from Le Danois Bank have Early Cretaceous apatite ages (138 ± 7 and 120 ± 8 Ma), interpreted to result from exhumation during rifting. Finally, a granulite from Goban Spur (Armorican margin) gave 212 ± 10 Ma (apatite), coinciding with a precursory rifting phase. Together with published radiometric results, these data indicate a Precambrian high-grade terrane at the site of the current margins. The distribution of the granulites on the seafloor reflects tectonic and erosional processes related to (a) Mesozoic rifting and (b) Early Tertiary incipient subduction of the Bay of Biscay beneath Iberia.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-3121.2003.00502.x
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  • 9
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    Sedimentological, physical, bulk geochemical, elemental and rock magnetic properties of the Middle to Late Pleistocene Rodderberg (Eifel/Germany) (2013)
    PANGAEA
    In:  Supplement to: Zolitschka, Bernd; Rolf, Christian; Bittmann, Felix; Binot, Franz; Frechen, Manfred; Wonik, Thomas; Froitzheim, Nikolaus; Ohlendorf, Christian (2014): Pleistocene climatic and environmental variations inferred from a terrestrial sediment record - the Rodderberg Volcanic Complex near Bonn, Germany. Zeitschrift der Deutschen Gesellschaft für Geowissenschaften, 165, 407-427, https://doi.org/10.1127/1860-1804/2014/0071
    Details
    Publication Date: 2024-01-27
    Description: The sediment record from Rodderberg potentially provides a climate and environmental record spanning at least the last ca 130 ka. Results from a low resolution pilot study reveal characteristic fluctuations that can be related to global climate variability as reflected in marine isotope stages and document the potential of this site for continuous and high-resolution investigations of the Middle to Late Pleistocene. Here we document the tentative lithology drilled, and show how the elemental composition can be interpreted with regard to lake level fluctuations, related redox conditions, but also to grain-size distribution and changes in lacustrine productivity. Finally, based on major lithological changes, a preliminary depth/age model is suggested that allows reassessing published luminescence ages from the same site.
    Keywords: Drill, hydraulic; DRILLHY; ROD11-1; Rodderberg, North Rhine-Westphalia, Germany
    Type: Dataset
    Format: application/zip, 5 datasets
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  • 10
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    Element composition of sediment core ROD11-1 (2013)
    PANGAEA
    Details
    Publication Date: 2024-01-27
    Keywords: Bromine/coherent radiation; Calcium/coherent radiation; DEPTH, sediment/rock; Drill, hydraulic; DRILLHY; Iron/coherent radiation; Manganese/coherent radiation; Potassium/coherent radiation; ROD11-1; Rodderberg, North Rhine-Westphalia, Germany; Silicon/Aluminium ratio; Sulfur/coherent radiation; Titanium/coherent radiation; X-ray fluorescence ITRAX core scanner; Zirconium/coherent radiation; Zirconium/Rubidium ratio
    Type: Dataset
    Format: text/tab-separated-values, 710 data points
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