Geologie: Recent submissions
Anzeige der Dokumente 876-900 von 933
-
Verbreitung und Eigenschaften von Massenverlagerungsgebieten an der Wellenkalk-Schichtstufe im Thüringer Becken unter besonderer Berücksichtigung geomorphologischer und klimatologischer Steuerungsfaktoren
(Univ. Halle, 2002)Die Wellenkalk-Schichtstufe im Thüringer ist allgemein als sehr massenverlagerungsanfällig bekannt. Über das großräumige Ausmaß der Massenbewegungen wußte man bislang jedoch nur sehr wenig. Es fehlten Informationen zu ... -
Microstructural criteria for synseismic loading and postseismic creep in the uppermost plastosphere - an example from the Sesia Zone, Western Alps
(Univ. Bochum, 2002)
Anhand des Modellfalls der Sesia Zone in den West-Alpen werden mikrostrukturelle Kriterien für syn- und postseismische Deformation in der oberen Plastosphäre in Folge eines großen Erdbebens in der überlagernden Schizosphäre ... -
Sediment accumulation and diagenesis in the late quaterary equatorial Atlantic Ocean - an environmental magnetic and geochemical perspective
(Univ. Bremen, 2004)Nonsteady-state Diagenesis, Equatorial Atlantic, Rock-magnetic and Geochemical Multiproxy Approach, XRF Core Scanner, Fe Redox, Magnetite Dissolution. - This thesis investigates 25 Late Quaternary sediment records from the ... -
Lithospheric deformations in Central Asia, derived from gravity data
(Univ. Hamburg, 2004)Central Asia is characterized by a number of spectacular tectonic units such as the Tibetan Plateau, the Tien Shan intra-continental mountain belt and the Altyn Tagh strike-slip fault. Deformation of the lithosphere of ... -
Tectonique et géodynamique actuelle de l'arc alpin - approche sismotectonique et modélisation numérique
(Univ. Neuchâtel, 2004)Le régime tectonique actuel de la chaîne des Alpes centrales/occidentales est analysé grâce à une compilation de 389 mécanismes au foyer couvrant l'ensemble de l'arc alpin, ainsi que par l'étude détaillée du séisme de ... -
Channelised and open-slope processes of mass sediment transport - their morphological and seismic characterisation from selected Atlantic high productivity regions
(Univ. Bremen, 2005)Sediment transport, high productivity, submarine canyon, submarine slide, excess pore-pressure, weak layers, slope failure. - The study investigates processes of mass sediment transport in two geologically unique Atlantic ... -
Viscous flow of magmas from Unzen volcano, Japan - implication for magma mixing and ascent
(Univ. Hannover, 2006)Viscosity, magma, Unzen -
Internetbasiertes Fachinformationssystem zur Plattenkinematik
(Univ. Karlsruhe, 2006)In der vorliegenden Arbeit wird ein internetbasiertes Fachinformationssystem zur Detektion krustaler Deformationen in den Ostkarpaten vorgestellt, welches im Rahmen des Sonderforschungsbereichs 461 Starkbeben: von ... -
Evolution und Struktur des Oberrheingrabens - quantitative Einblicke mit Hilfe dreidimensionaler thermomechanischer Modellrechnungen
(Univ. Freiburg (Breisgau), 2006)In der Modellstudie wurde ein numerisches Modell für ein kontinentales Riftsystem erstellt, welches durch präexistierende Störungen sowohl entlang in seinem Streichen als auch quer dazu vorgeƯzeichnet war. Das Modell ... -
Neogene seismotectonics of the south-central Chile margin - subduction-related processes over various temporal and spatial scales
(Univ. Potsdam, 2007)
The Andean orogen is the most outstanding example of mountain building caused by the subduction of oceanic below continental lithosphere. The Andes formed by the subduction of the Nazca and Antarctic oceanic plates under ... -
The Phanerozoic thermo-tectonic evolution of northern Mozambique constrained by 40Ar/39Ar, fission track and (U-Th)/He analyses
(Univ. Bremen, 2007)Thermochronology, Fission track, (U-Th)/He, 40Ar/39Ar,Mozambique, Gondwana, supercontinent dispersal. - Results of thermochronometric investigations comprising 40Ar/39Ar hornblende and biotite, titanite and apatite fission ... -
Deformation microstructures - Antarctic Ice from EPICA Dronning Maud Land and artificial creep test Ice
(Univ. Bremen, 2007)Ice, microstructures, subgrain boundaries, recrystallization, flow, deformation. - The primary objective of this thesis is the investigation of microstructures obtained from samples from the EPICA Dronning Maud Land ice ... -
Sediment dynamics of megaslides along the Svalbard continental margin and the relation to paleoenvironmental changes and climate history
(Univ. Bremen, 2007)Slope stability, submarine slides, Svalbard, Arctic Ocean, Sophia Basin. - With increasing interest in slope stability issues on continental shelves the causes and trigger mechanism of submarine slides get more and more ... -
Imaging of Cenozoic climatic events and bottom water activities at the northeastern flank of Walvis Ridge: A correlation of seismic data with borehole data measurements
(Univ. Bremen, 2008)Seismic, marine, walvis ridge, bottom currents, climatic events. - The history of sedimentation and current activities at the northeastern flank of Walvis Ridge is investigated by a correlation of multichannel seismic data ... -
Geologische Störungszonen als Kriterium der Standortwahl Hügel bauender Waldameisen unter Berücksichtigung spezieller mikrobieller Gemeinschaften
(Univ. Duisburg, 2008)Im Jahre 2002 fiel bei strukturgeologischen Kartierungen zur Untersuchung der rezenten Tektonik des Rheinischen Schiefergebirges erstmalig eine auffällige lineare Anordnung von Nestern Hügel bauender Waldameisen entlang ... -
Palaeoenvironmental evolution of the Tunisian carbonate platform margin - response to global oceanographic and climatic changes (Barremian-Aptian)
(Univ. Bremen, 2008)The Late BarremianLate Aptian interval was characterised by several major changes in the ocean/climate system related to the onset of the Mid-Cretaceous greenhouse world. North Africansedimentary deposits offer excellent ... -
Antarctic ice sheet expansions in the Middle Miocene and Pliocene
(Univ. Bremen, 2008)This study focuses on the interactions between climate and ice sheets in order to obtain a better understanding of the processes involved. Two periods in the geological past are explored; the Middle Miocene and the ... -
Evaluation and application of GPS and altimetry data over central Dronning Maud Land, Antarctica - annual elevation change, a digital elevation model, and surface flow velocity
(Univ. Bremen, 2009)The polar ice sheets are unique paleoclimatic archives and play an important role in recent and future climate. The melting of the big freshwater reservoirs will not only increase the global sea level, but will also influence ... -
Quaternary tectonics and seismic stratigraphy of the western Black Sea shelf
(Univ. Hamburg, 2009)Interpretation of high and very high resolution reflection seismic data from the western Black Sea shelf yielded a seismic stratigraphic model of the Late Quaternary deposits on the southwestern Black Sea shelf. This model ... -
Late Cretaceous to Miocene tectonic reconstruction of the northwestern Caribbean - regional analysis of Cuban geology
(Univ. Greifswald, 2009)The Caribbean is a geologically complex region with several different plate boundary interactions. Geodynamic reconstructions of the northwestern Caribbean region have been particularly controversial in terms of the number ... -
Karbonat- und Lignitzyklen im Ptolemais-Becken: orbitale Steuerung und suborbitale Variabilität (Spätneogen, NW-Griechenland) - sedimentologische Fallstudie unter Berücksichtigung gesteinsmagnetischer Eigenschaften
(Univ. Köln, 2009)Die mio-pliozänen Ablagerungen im NNW SSE streichenden Monastir-Florina-Ptolemais-Kozani/Servia-Graben beherbergen das größte zusammenhängende Braunkohlevorkommen in Bereich des Balkans. Das Becken erstreckt sich von ... -
The late Quaternary environmental and climatic history of North-East Greenland, inferred from coastal lakes
(Univ. Köln, 2009)Eleven lakes and ponds and three lacustrine sediment sequences from coastal East and North-East Greenland were studied for recent hydrological and phytoplankton characteristics and for palaeolimnology, respectively. The ... -
Late Quaternary environmental history of Taylor Valley, southern Victoria Land, Antarctica, reconstructed by a multidisciplinary study of lake sediments
(Univ. Köln, 2009)In the unglaciated areas of Antarctica, lake sediments act as archives of the regional environmental and climatic history. In most cases, the records are restricted to the Holocene. Amongst the few exceptions are lakes in ... -
The sediment record of Lake Ohrid (Albania/Macedonia) - new methodological approaches, tephrostratigraphy, chronology, and inferences of past climatic and environmental changes
(Univ. Köln, 2009)This thesis had two primary objectives: One objective was to explore and develop applications of Fourier transform infrared spectroscopy (FTIRS) for the quantification of biogeochemical properties in lake sediment; the ... -
Der Es-Safya-Graben im Nordsudan - Geologie und Tektonik
(Univ. Berlin, 1998)
