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  • 1
    Keywords: Marine sediments ; Geology, Stratigraphic Holocene ; Geology
    Type of Medium: Book
    Pages: III, 52 S. , Ill., graph. Darst. Kt.
    Series Statement: Smithsonian contributions to the marine sciences 3
    DDC: 551.4/62
    Language: English
    Note: Abstract
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Sedimentology 2 (1963), S. 0 
    ISSN: 1365-3091
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: Sandstone-filled channels occur widely in the Upper Carboniferous (Westphalian) rocks of South Wales. Subsurface and outcrop studies of channels and associated structures in three formations within the Westphalian sequence reveal significant regional variations in orientation, transverse profile, geometry and lithology of fill. The pattern of channel-orientation in each formation is consistent with the system of palaeocurrents derived from independent studies of cross-bedding and indicates that in the lowest Westphalian (Basal Coal Measures) derivation was principally from the north and east, with intermittent supply from the south, whereas in the Upper Westphalian material was derived mainly from the south and east but with substantial contributions from the north.Formation of the channels is ascribed to fluvial erosion and filling. The mutually consistent regional variations in channel-parameters are compared with the conspic- uous changes in lithofacies and interpreted as indicating diRerences in Auviohydraulic locale within the original basin of sedimentation.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 0016-7835
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract  This study describes the lithostratigraphic character of mid-Cenozoic (Oligocene–Pliocene) sequences in different parts of the northeastern Mediterranean area and offers a detailed stratigraphic correlation for this region. The sequences concerned are drawn from the Camardi area (south–central Anatolia), the Adana Basin, the Misis Mountains and the Kyrenia Range (northern Cyprus) and the submerged Florence Rise (west of Cyprus). The stratigraphic relationships identified here indicate the following: (a) Following the middle Eocene (Lutetian) regression there was uplift throughout the entire region; (b) Episodes of fluvial and lacustrine deposition in intramontane settings ensued in most of this region during the late Eocene/early Miocene interval; (c) Following a regionally extensive phase of tectonic compression, major marine transgression commenced in the late Oligocene in northern Cyprus and in the early Miocene in adjacent southern Turkey, with the exception of the Ecemiş Fault Zone where continental deposition continued; (d) These Oligo-Miocene transgressive sequences comprise a broadly diachronous complex of both shallow and deeper marine facies, including reefal carbonates, littoral clastics, basinal shales and fan-turbidites; (e) Deeper marine Miocene facies persisted longer in the Misis area and in northern Cyprus; (f) A regional regression occurred throughout most of the area during the late Serravallian to Tortonian interval and is marked by the abrupt, locally discordant appearance of extensive shallow marine, deltaic and fluvial deposits; (g) Continued regression in the Messinian led to the formation of significant evaporite deposits in the western and southern parts of the region, but localized uplift of the Misis area is attested by the initial deformation of the Neogene rocks there and the absence of Messinian sediments from this area; (h) In the Pliocene there was extensive emergence of the northern parts of the region interrupted by brief marine incursions. The present-day drainage pattern was established at this time; (i) Marine conditions persisted longer in northern Cyprus, where emergence occurred only in the latest Pliocene.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    International journal of earth sciences 74 (1985), S. 139-153 
    ISSN: 1437-3262
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Description / Table of Contents: Abstract New stratigraphical and micropalaeontological data, supplemented by detailed sedimentological and petrographical observations, have been obtained from an almost completely exposed Oligocene-Miocene succession near Celalli in the Zara-Hafik basin, which forms part of a long-lived zone of subsidence associated with the North Anatolian Fault system. Four laterally extensive lithostratigraphical units have been distinguished and ostracod microfaunas indicate that the lower two units are of Middle Oligocene age, while bivalve/brachiopod faunas from the third unit are also Oligocene. The status of the uppermost unit of redbeds remains equivocal, but microfaunas from the capping marls are of lowermost Miocene age. The basal brown sandstone unit was formed in a shallow marine environment dominated by southwards transport of sand by offshore-directed storm-surges, with associated east-west longshore movement also important. The discordantly succeeding limestone unit records a phase of carbonate bar migration across the basin while the third formation (in which medium-scale facies cyclicity is prominent) was formed in a southwards-prograding coastal plain complex, following a renewal of terrigenous supply to this region. The late Oligocene-Miocene redbed unit resulted from continued terrestrial progradation and is characterised by alluvial deposits formed by small, southwards-flowing streams of high sinuosity, ultimately succeeded by carbonate and evaporitic deposits marking the early Miocene marine transgression. Stratigraphical analysis of sandstone petrography reveals a gradual change in provenance through the Oligocene, from sources of »oceanic« character (rich in ophiolitic rocks) to those of »continental« nature (with silicic metamorphics and sedimentary cover-rocks prominent), and the compositional data thus accord with models suggesting closure of a small oceanic or arc-related basin in this region during the late Palaeogene.
    Abstract: Résumé De nouvelles données stratigraphiques et micropaléontologiques, associées à des observations sédimentologiques et pétrographiques détaillées ont été recueillies dans une série oligocène-miocène exposée de manière presque complète près de Celalli dans le bassin de Zara-Hafik, lequel fait partie d'une zone de subsidence de longue durée associée au système de failles de l'Anatolie du Nord. Quatre unités lithostratigraphiques d'extension latérale notable ont été distinguées. Les deux unités inférieures sont datées de l'Oligocène moyen par une microfaune à Ostracodes, et la troisième de l'Oligocène par une faune à brachiopodes et autres bivalves; l'âge de l'unité supérieure reste incertain, mais les marnes terminales renferment une microfaune éo-miocène. L'unité inférieure, constituée de grès bruns, s'est formée dans un milieu marin peu profond dans lequel le sable était transporté à la fois vers le large (vers le Sud), par des vagues de tempête, et vers l'Ouest parallèlement au rivage. La deuxième unité, discordante et de nature calcaire, témoigne de la migration d'une barre carbonatée à travers le bassin. La troisième unité, caractérisée par une disposition cyclique des faciès à moyenne échelle, a été élaborée dans un complexe de plaine côtière progressant vers le Sud, comme suite à de nouveaux apports terrigènes. La quatrième unité (Oligocène tardif-Miocène), formée de couches rouges, résulte d'une sédimentation continentale continue et consiste en alluvions déposées par de petits cours d'eau très sinueux coulant vers le Sud; ces couches sont surmontées finalement de dépôts carbonates et évaporitiques marquant la transgression éo-miocène. L'analyse pétrographique du grès, opérée en fonction de la stratigraphie, révèle au cours de l'Oligocène un changement graduel de provenance, depuis un domaine nourricier de type »océanique« (riche en ophiolites) jusqu'à un domaine de type »continental« (à dominance de roches métamorphiques et sédimentaires siliceuses). Ces données sont en accord avec un modèle suggérant la fermeture d'un petit bassin océanique ou d'arc insulaire pendant le Paléogène tardif.
    Notes: Zusammenfassung Aus einer nahezu vollständig aufgeschlossenen Schichtenfolge des Oligozän und Miozän im Gebiet von Celalli im Zara-Hafik-Becken/Türkei werden neue Daten zur Stratigraphie und Mikropaläontologie vorgestellt. Diese werden ergänzt durch sedimentologische und petrographische Beobachtungen. Das Becken ist Teil einer Zone mit lange anhaltender Subsidenz, die mit dem System des Nordanatolischen Lineaments in Verbindung steht. Es lassen sich vier lateral aushaltende lithostratigraphische Einheiten unterscheiden, von denen die beiden unteren mit Ostracoden-Mikrofaunen in das Mittel-Oligozän eingestuft werden. Nach Muschel- und Brachiopoden-Faunen ist die dritte Einheit ebenfalls oligozänen Alters. Das Alter der obersten Einheit von Rotsedimenten ist nicht genau bekannt, doch besitzen die Mikrofaunen der hangenden Mergel ein tiefstmiozänes Alter. Der basale braune Sandstein wurde in einem flachmarinem Milieu gebildet, das von einem südwärts gerichteten Sandtransport durch ablandige Sturmwellen beherrscht wird. Zusätzlich ist eine ost-west-gerichtete Küsten-Längsdrift von Bedeutung. Die diskordant darüber lagernde Kalkfolge wurd durch eine Phase von durch das Becken wandernden karbonatischen Bänken aufgebaut. Die dritte Einheit (in der eine Fazies-Zyklizität mittlerer Größe vorherrscht) baute sich in dem südwärts vorschreitenden Komplex einer Küstenebene auf, die einer neuerlichen terrigenen Schüttung in diesem Gebiet folgt. Die spätoligozän-miozäne Einheit von Rotsedimenten ist das Ergebnis weiter voranschreitender terrestrischer Sedimente. Sie besteht aus alluvialen Ablagerungen von kleinen nach Süden fließenden Flüssen mit hoher Sinuosität, gefolgt von karbonatischen und evaporitischen Bildungen, die die frühmiozäne Transgression anzeigen. Die stratigraphische Analyse der Sandstein-Petrographie offenbart einen allmählichen Wandel der Provenienz im Oligozän, der von »ozeanischem« Liefergebiet (reich an ophiolithischen Gesteinen) zu »kontinentalem« (mit vorherrschend kieseligen Metamorphiten und sedimentärer Bedeckung) überwechselt. Die Zusammensetzung stimmt mit Modellen überein, die die Schließung eines kleinen ozeanischen oder inselbogen-artigen Beckens während des späten Paläogens nahelegen.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    International journal of earth sciences 84 (1995), S. 794-812 
    ISSN: 1437-3262
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract This study describes the lithostratigraphic character of mid-Cenozoic (Oligocene-Pliocene) sequences in different parts of the northeastern Mediterranean area and offers a detailed stratigraphic correlation for this region. The sequences concerned are drawn from the Camardi area (south-central Anatolia), the Adana Basin, the Misis Mountains and the Kyrenia Range (northern Cyprus) and the submerged Florence Rise (west of Cyprus). The stratigraphic relationships identified here indicate the following: (a) Following the middle Eocene (Lutetian) regression there was uplift throughout the entire region; (b) Episodes of fluvial and lacustrine deposition in intramontane settings ensued in most of this region during the late Eocene/early Miocene interval; (c) Following a regionally extensive phase of tectonic compression, major marine transgression commenced in the late Oligocene in northern Cyprus and in the early Miocene in adjacent southern Turkey, with the exception of the Ecemi§ Fault Zone where continental deposition continued; (d) These Oligo-Miocene transgressive sequences comprise a broadly diachronous complex of both shallow and deeper marine facies, including reefal carbonates, littoral clastics, basinal shales and fan-turbidites; (e) Deeper marine Miocene facies persisted longer in the Misis area and in northern Cyprus; (f) A regional regression occurred throughout most of the area during the late Serravallian to Tortonian interval and is marked by the abrupt, locally discordant appearance of extensive shallow marine, deltaic and fluvial deposits; (g) Continued regression in the Messinian led to the formation of significant evaporite deposits in the western and southern parts of the region, but localized uplift of the Misis area is attested by the initial deformation of the Neogene rocks there and the absence of Messinian sediments from this area; (h) In the Pliocene there was extensive emergence of the northern parts of the region interrupted by brief marine incursions. The present-day drainage pattern was established at this time; (i) Marine conditions persisted longer in northern Cyprus, where emergence occurred only in the latest Pliocene.
    Type of Medium: Electronic Resource
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