ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Call number: 9783319761022 (e-book)
    Description / Table of Contents: This richly illustrated book presents Germany’s geological evolution in the context of the Earth’s dynamic history. It starts with an introduction to Geology and explains the plate tectonic development, as well as the formation of both ancient and recent mountain belts - namely the Caledonian, Variscan and the modern-day Alps - that formed this part of Europe. A dedicated chapter discusses the origin of earthquakes in Germany, the occurrence of young volcanic rocks and the various episodes of rock deformation and metamorphism at these complex crossroads of plate tectonic history. The book highlights Germany’s diverse geological history, ranging from the origin of the Earth, the formation of deep crystalline rocks, and their overlying sedimentary sequences, to its more recent “ice age” quaternary cover. The last chapter addresses the shaping of the modern landscape. Though the content is also accessible for non-geologists, it is primarily intended for geoscience students and an academic audience
    Type of Medium: 12
    Pages: 1 Online-Ressource (xxxvii, 304 Seiten) , Illustrationen, Diagramme, Karten
    Edition: Online edition Springer eBook Collection. Earth and Environmental Science
    ISBN: 9783319761022 , 978-3-319-76102-2
    ISSN: 2364-6438 , 2364-6446
    Series Statement: Regional Geology Reviews
    Language: English
    Note: Contents 1 Introduction 2 Time and Geological Periods 3 Rocks and the Geological Record 4 The Age of the Rocks 5 Plate Tectonics, the Unifying Theory 6 Tectonics Units of Europe 6.1 Ancestral Europe 6.2 Paleo-Europe 6.3 Meso-Europe 6.4 Neo-Europe 7 Overview of the Plate Tectonic History of Europe 8 The Dynamic Earth, Earthquakes in Germany 9 Early Geological Evolution of Germany 9.1 The Pre-variscan Basement 9.2 Occurrences of Proterozoic and Early Paleozoic Units 9.2.1 Harz Mountains 9.2.2 Rheinisches Schiefergebirge 9.2.3 Lusatia 9.2.4 Elbe Zone 9.2.5 Erzgebirge 9.2.6 Schwarzburg Anticlinorium, Vesser Zone 9.2.7 Bohemian Massif 9.2.8 Black Forest 10 Late Paleozoic of Germany 10.1 The Variscan Orogeny 10.1.1 Rhenohercynian Zone 10.1.2 Saxothuringian Zone 10.1.3 Moldanubian Zone 10.2 Development of the Variscan Orogeny Through Time 10.2.1 Devonian 10.2.2 Carboniferous 10.3 The Variscides in Germany 10.3.1 Regional Geology of the Rhenohercynian 10.3.2 Northern Phyllite Zone 10.3.3 Regional Geology of the Saxothuringian 10.3.4 Saxothuringian (excluding the Mid-German Crystalline Zone) 10.3.5 Regional Geology of the Moldanubian 11 Permian and Mesozoic Geology of Germany 11.1 Post-Variscan History 11.2 Permian 11.2.1 Rotliegend 11.2.2 Zechstein 11.3 Permian/Triassic Boundary 11.4 Triassic 11.4.1 Buntsandstein (Bunter Sandstone) 11.4.2 Muschelkalk 11.4.3 Keuper 11.5 Triassic/Jurassic Boundary 11.6 Jurassic 11.6.1 Early Jurassic 11.6.2 Middle Jurassic 11.6.3 Late Jurassic 11.7 Cretaceous 11.7.1 Early Cretaceous 11.7.2 Late Cretaceous 11.8 Cretaceous/Tertiary Boundary 12 The Evolution of the Alps 12.1 Overview of the Tectonic Structure of the Alps 12.1.1 Helvetic 12.1.2 Penninic 12.1.3 Austroalpine and Southern Alpine Units 12.2 Development of the Alpine Region During the Permian 12.3 The Alpine Triassic 12.4 The Alpine Jurassic 12.5 The Alpine Region in the Cretaceous and Early Tertiary 12.6 The Tectonic Evolution of the Alps 13 Tertiary Basins 13.1 Tertiary Brown Coal Deposits 13.2 The Upper Rhine Graben 13.3 The Northern Alpine Foreland Basin—The Molasse 14 Tertiary and Quaternary Volcanism 14.1 Volcanism in the Eifel 14.2 Westerwald, Siebengebirge, Vogelsberg, Rhön, and Heldburger Gangschar 14.3 Small Chimneys in the Odenwald and the Messel Pit 14.4 Kaiserstuhl 14.5 Tuff Chimneys of Bad Urach, Hegau 14.6 Eger Graben Area, Fichtel Mountains, Vogtland, and Lusatia 15 Asteroid Craters 16 Germany During the Glacial Periods 16.1 Glacial and Interglacial Periods 16.2 Deposits and Erosion Forms of the Glacial Periods 16.3 The Baltic Sea—A Relic from the Last Glaciation Period Appendix References Index
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Publication Date: 2021-03-29
    Description: A perlite sample representative of an operating mine in Milos was investigated with respect to the type and spatial distribution of water. A set of different methods was used which finally provided a consistent view on the water at least in this perlite. Infrared spectroscopy showed the presence of different water species (molecular water and hydroxyl groups / strongly bound water). The presence of more than 0.5 mass% smectite, however, could be excluded considering the cation exchange capacity results. The dehydration measured by thermal analysis occurred over a wide range of temperatures hence confirming the infrared spectroscopical results. Both methods point to the existence of a continuous spectrum of water binding energies. The spatial distribution of water and/or pores was investigated using different methods (CT: computer tomography, FIB: scanning electron microscopy including focused ion beam technology, IRM: infrared microscopy). Computer tomography (CT) showed large macropores (20 - 100 μm) and additionally revealed a mottled microstructure of the silicate matrix with low density areas up to a few μm in diameter. Scanning electron microscopy (FIB) confirmed the presence of μm sized pores and IRM showed the filling of these pores with water. In summary, two types of pores were found. Airfilled 20 - 100 μm pores and μm-sized pores disseminated in the glass matrix containing at least some water. Porosity measurements indicate a total porosity of 26 Vol%, 11 Vol% corresponding to the μm-sized pores. It remains unsolved wether the water in the μm-sized pores entered after or throughout perlite formation. However, the pores are sealed and no indications of cracks were found which indicated a primary source of the water, i.e. water was probably entrapped by quenching of the lava. The water in these pores may be the main reason for the thermal expandability which results in the extraordinarily porous expanded perlite building materials.
    Keywords: Perlite; Porosity; Water distribution; Volcanic glass; FIB; CT-analysis ; 551
    Language: English , English
    Type: article , publishedVersion
    Format: 10
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    Publication Date: 2007-10-08
    Description: A zone of siderite dominated magnetic fabrics is recognized within clastic argillaceous rocks of the southern part of the Upper Carboniferous Culm foreland basin of SW England. This zone was identified by measuring the anisotropy of magnetic susceptibility (AMS) before and after heat treatment of samples. A detailed investigation of a recumbent fold structure within this zone (at the well-known Crackington Haven locality) reveals the pre-folding nature of siderite formation. The restored{kappa} max axes of AMS-ellipsoids plot on a segment of a small circle, with a mean inclination of c. 45{degrees} to the pole of the sedimentary bedding planes. This oblique magnetic fabric geometry is considered to reflect substrate-controlled siderite growth within a migrating fluid medium, which crystallized during diagenesis and the early stages of Variscan compression. The regional distribution of siderite growth, in combination with the directional information from the AMS, is discussed as an indicator for the palaeo-flow direction of diagenetic fluids within a foreland basin setting.
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    facet.materialart.
    Unknown
    In:  Geological Society Special Publication 186: 85-101.
    Publication Date: 2001-01-01
    Description: The formation of clay minerals within active fault zones, which results from the infiltration of aqueous fluids, often leads to important changes in mechanical behaviour. These hydrous phyllosilicates can (1) enhance anisotropy and reduce shear strength, (2) modify porosity and permeability, (3) store or release significant volumes of water, and (4) increase fluid pressures during shearing. The varying interplay between faulting, fluid migration, and hydrous clay mineral transformations along the central Alpine Fault of New Zealand is suggested to constitute an important weakening mechanism within the upper section of this crustal discontinuity. Well-developed zones of cataclasite and compacted clay gouge show successive stages of hydrothermal alteration, driven by the cyclic, coseismic influx of meteoric fluids into exhumed amphibolite-facies rocks that are relatively Mg rich. Three modes of deformation and alteration are recognized within the mylonite-derived clay gouge, which occurred during various stages of the fault's exhumation history. Following initial strain-hardening and frictional melting during anhydrous cataclastic breakdown of the mylonite fabric, reaction weakening began with formation of Mg-chlorite at sub-greenschist conditions (〈320 {degrees}C) and continued at lower temperatures (〈120 {degrees}C) by growth of swelling clays in the matrix. The low permeability and low strength of clay-rich shears are suitable for generating high pore-fluid pressures during faulting. Despite the apparent weakening of the c. 6 km upper segment of the Alpine Fault, the upper crust beneath the Southern Alps is known to be actively releasing elastic strain, with small (〈M 5) earthquakes occurring to 12 km depth. We predict that larger events will nucleate at c. 6-12 km along an anhydrous, strain-hardened portion of the fault.
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 5
    Publication Date: 2011-12-01
    Description: Bentonites are considered suitable backfill material for planned underground nuclear-waste repositories because of an inherent capacity to self-seal and retain contaminants when hydrated. Barrier effectiveness, however, depends on the physical properties of bentonite after placement in a repository site, where hydration state and bulk density can vary. The objective of the present study was to investigate commercial bentonite MX80 hydration rates and mechanisms during water infiltration into dry, moist, and wet samples using the ‘wet-cell’ X-ray diffraction technique. During experimentation, water enters a small flow-through cell and induces swelling within a confined reaction volume, analogous to clay barriers in excavated underground sites. Results demonstrated the importance of using dry, well compacted (〉1.4 g/cm3) bentonite, which became saturated slowly (
    Print ISSN: 0009-8604
    Electronic ISSN: 1552-8367
    Topics: Geosciences
    Published by Clay Minerals Society
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 6
    Publication Date: 2018-08-31
    Print ISSN: 0009-8558
    Electronic ISSN: 1471-8030
    Topics: Geosciences
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 7
    Publication Date: 2020-09-28
    Print ISSN: 0009-8558
    Electronic ISSN: 1471-8030
    Topics: Geosciences
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 8
    Publication Date: 2019-03-01
    Description: Clay mineral ‘Crystallinity Index Standards’ (CIS) composed of Palaeozoic mudrocks from southwest England were investigated systematically in five sub-fractions per sample for the first time. X-ray diffraction was used to determine mineral assemblages, calibrated 001 illite full-width-at-half-maximum (FWHM) values and illite polytype compositions, in addition to K–Ar isotopic analyses of all fine fractions. The FWHM results of the 〈2 µm fraction are consistent with previous studies and reflect the range of diagenetic to epizonal grades covered by the sample set SW1 to SW7 (~0.61–0.26°2θ). Diagenetic and lower anchizone samples also show significant broadening of 001 illite reflections in the finer fractions and contain mixtures of authigenic 1M + 1Md illite and detrital 2M1 white mica polytypes suitable for illite age analysis. The estimated end-member ages of the Bude (SW1-1992) and younger Crackington (SW3-2000) mudstones yield detrital ages of Late Cambrian to Middle Ordovician (493–457 Ma) and a broad range of 1M + 1Md illite ages between Middle Permian and Early Jurassic (271–190 Ma). The detrital age of the stratigraphically older Crackington Formation mudrock (SW2-1992) is Late Devonian (384–364 Ma) with 1M + 1Md illite ages between Late Triassic and Early Jurassic (219–176 Ma). The origin of Mesozoic 1M + 1Md illite ages may represent neocrystallized illite associated with Mesozoic hydrothermal events or similar events that thermally reset older authigenic illite with partial loss of radiogenic argon and no renewed crystal growth. In contrast, upper anchizonal and epizonal Devonian slates (SW3-2012, SW4-1992, SW6-1992 and SW7-2012) contain only the 2M1 polytype, with K–Ar ages younger than the stratigraphic age. The three finest fractions of SW4-1992 yield consistent Late Carboniferous ages (331–304 ± 7 Ma) that are considered to date the neocrystallized 2M1 mica. Most fractions of epizonal slate (SW6-1992, SW7-2012) yield Early Permian ages (293.6–273 Ma) corresponding to published cooling ages of the Tintagel High-Strain Zone and the intrusion of the Bodmin granite (291.4 ± 0.8 Ma). These first K–Ar age constraints for the fine fractions of the CIS should provide useful reference values for testing analytical procedures of illite age analysis.
    Print ISSN: 0009-8558
    Electronic ISSN: 1471-8030
    Topics: Geosciences
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 9
    Publication Date: 2019-03-01
    Print ISSN: 0009-8558
    Electronic ISSN: 1471-8030
    Topics: Geosciences
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 10
    Publication Date: 1996-12-01
    Print ISSN: 0278-7407
    Electronic ISSN: 1944-9194
    Topics: Geosciences
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...