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  • 1
    Call number: 9/M 07.0421(326)
    In: Geological Society special publication
    Description / Table of Contents: Neoproterozoic successions are major hydrocarbon producers around the world. In North Africa, large basins with significant surface outcrops and thick sedimentary fills are widespread. These basins are now emerging as potential sources of hydrocarbons and are attracting interest from geological researchers in academia and the oil and gas industry.This volume focuses on recent developments in the understanding and correlation of North African basin fills and explores novel approaches to prospecting for source and reservoir rocks. The papers cover aspects of petroleum prospectivity and age-equivalent global petroleum systems, Neoproterozoic tectonics and palaeogeography, sequence stratigraphy, glacial events and global climatic models, faunal and floral evolution and the deposition of source rocks.The broader aim of this volume is to compare major environmental change, the emergence of life, the global carbon cycle and the implications for hydrocarbon exploration of well-studied Neoproterozoic successions worldwide.
    Type of Medium: Monograph available for loan
    Pages: 309 S.
    ISBN: 9781862392878
    Series Statement: Geological Society special publication 326
    Classification:
    Deposits
    Location: Reading room
    Branch Library: GFZ Library
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  • 2
    Monograph available for loan
    Monograph available for loan
    Berlin : Transpress
    Call number: MOP B 15833
    Type of Medium: Monograph available for loan
    Pages: 127 S. : graph. Darst.
    Location: MOP - must be ordered
    Branch Library: GFZ Library
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  • 3
    Description / Table of Contents: Neoproterozoic successions are major hydrocarbon producers around the world. In North Africa, large basins with significant surface outcrops and thick sedimentary fills are widespread. These basins are now emerging as potential sources of hydrocarbons and are attracting interest from geological researchers in academia and the oil and gas industry. This volume focuses on recent developments in the understanding and correlation of North African basin fills and explores novel approaches to prospecting for source and reservoir rocks. The papers cover aspects of petroleum prospectivity and age-equivalent global petroleum systems, Neoproterozoic tectonics and palaeogeography, sequence stratigraphy, glacial events and global climatic models, faunal and floral evolution and the deposition of source rocks. The broader aim of this volume is to compare major environmental change, the emergence of life, the global carbon cycle and the implications for hydrocarbon exploration of well-studied Neoproterozoic successions worldwide.
    Pages: Online-Ressource (VI, 309 Seiten)
    ISBN: 9781862392878
    Language: English
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  • 4
    ISSN: 1437-3262
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Description / Table of Contents: Abstract The northwest Australian continental margin is a very old, sediment-starved NE Gondwanan margin with the opportunity to study the early structural and depositional evolution during the Triassic to Jurassic rifting stages (Neo-Tethys), the earliest Cretaceous transition from rifting to drifting, and the early tectonic, volcanic, and paleoceanographic history of the Indian Ocean. Ocean Drilling Program (ODP) Legs 122 and 123 drilled eight sites in the area of the Exmouth Plateau and the adjacent abyssal plains: Sites 759–761 and 764 studied the Triassic to Cenozoic evolution of Wombat Plateau, a small sub-plateau of the northern Exmouth Plateau; Sites 765 penetrated almost 1 km of Cretaceous to Cenozoic sediments of the nearby Argo Abyssal Plain and 270 m of the oldest Indian ocean crust; Sites 762 and 763 studied the southern central Exmouth Plateau, whereas Site 766 was drilled into intrusive volcanics with MORB affinity under the adjacent Gascoyne Abyssal Plain at the foot of the western escarpment of the plateau. The major discoveries during the drilling of the two continental margin-deep ocean basin transects led to a better understanding of the early rift history of this margin during late Permian to late Triassic times (stretching, block-tectonic movements, fluviodeltaic/-shallow-water carbonate environments, major Rhaetian carbonate buildup, early rift volcanism); of the rift-drift transition processes (major blockfaulting during Jurassic times with local uplift, rift flank tilting and subaerial erosion forming a post-rift unconformity); of the age and paleoenvironment of the oldest part of the Indian Ocean (possibly not earlier than late Berriasian to early Valanginian breakup, 20 Ma younger than expected); of the »juvenile ocean stage« (transgressive, condensed early Neocomian belemnite sands, calcisphere chalks and bentonites on Wombat Plateau); of the »mature ocean stage« (post-mid-Cretaceous eupelagic chalks); of the geochemical nature and origin of old oceanic crust and the overlying sediments in a »geochemical reference hole«; and of the Mesosoic chrono-(bio-magneto-stratigraphy) and the age and causes of major relative sea level fluctuations, especially during late Triassic and early Cretaceous times.
    Abstract: Résumé La marge continentale Nord-ouest de l'Australie est une ancienne marge gondwanienne dont la couverture mésocénozoïque réduite permet d'observer l'évolution structurale et sédimentaire précoce du rifting néo-téthysien (Trias et Jurassique), ainsi que le début de l'expansion océanique (Crétacé inférieur) et les conséquences tectoniques, magmatiques et paléogéographiques de la naissance de l'Océan Indien. Les campagnes ODP (Ocean Drilling Program) 122 et 123 ont foré huit sites sur le plateau sous-marin d'Exmouth et les plaines abyssales adjacentes: les sites 759 à 761 et 764 concernent l'évolution tectono-sédimentaire du plateau du Wombat (extrémité Nord du plateau d'Exmouth) du Trias au Cénozoïque; le site 765 a foré dans la plaine abyssale d'Argo 270 m de la plus ancienne croûte de l'Océan Indien, recouverte de près de 1 km de sédiments crétacés et cénozoïques; les sites 762 et 763 sont situés dans la partie Sud du plateau d'Exmouth central; enfin, le site 766 a foré des intrusions volcaniques de type MORB au pied de l'escarpement occidental du plateau (plaine abyssale de Gascoyne). Les forages de ces deux campagnes se regroupent ainsi sur deux transects marge continentale-océan. Les principaux résultats nouveaux portent sur: l'histoire tectono-sédimentaire de la marge au cours du rifting précoce (Trias supérieur): étirement, tectonique de blocs et volcanisme; environnements de type fluviodeltaïques dominants, puis carbonates de plateforme à édifices récifaux (Rhétien). les phénomènes précédant et accompagnant la rupture océanique: tectonique cassante et blocs basculés, surélévations locales et érosion subaérienne, «post-rift unconformity». les âges et paléoenvironnements des plus vieux sédiments de l'Océan Indien, qui n'excéderaient pas le Berriasien supérieur à Valanginien inférieur. les caractères de l'océan »juvénile« (séries condensées du Néocomien, craies à calcisphères, et bentonites issues de l'altération de produits volcaniques) et de l'océan «mature» (craies pélagiques post-Crétacé inférieur). la géochimie et l'origine de la croûte océanique ancienne et des sédiments sus-jacents dans un site choisi comme «site de référence géochimique». l'étude des fluctuations du niveau marin, en particulier durant le Trias supérieur et le Crétacé inférieur, et l'amélioration des échelles chrono, bio et magnétostratigraphiques méso-cénozoïques.
    Notes: Zusammenfassung Der nordwestaustralische Kontinentalrand ermöglicht als sehr alter, sedimentverhungerter Kontinentalrand Nordost-Gondwanas die Untersuchung der frühen tektonischen und faziellen Entwicklung während der triassischen bis jurassischen Riftphase (»Neo-Tethys«), der früh-unterkretazischen Rift-Drift-Übergangsphase, sowie der frühen tektonischen, vulkanischen und paläozeanographischen »Post-breakup-Entwicklung« des Indischen Ozeans. Während des 122. und 123. Fahrtabschnittes des Ozeanbohrprogrammes (ODP) wurden 8 Bohrungen auf dem Exmouth Plateau und in den benachbarten Tiefseebenen niedergebracht. Die Bohrungen 759-761 und 764 untersuchten die triassische bis känozoische Entwicklung des Wombat-Plateau, eines kleinen Sub-Plateaus des nördlichen Exmouth-Plateaus. Bohrung 765 durchbohrte eine fast 1 km dicke Folge von kretazischkänozoischen Sedimenten der nahegelegenen Argo-Tiefseebene und 270 m der ältesten Ozeankruste des Indischen Ozeans; die Bohrungen 762 und 763 liegen im südlichen Teil des zentralen Exmouth-Plateaus, während Bohrung 766 in der nahegelegenen Gascoyne-Tiefseebene intrusive MORB-ähnliche Vulkanite nahe dem westlichen Steilrand des Exmouth-Plateaus erbohrte. Wesentliche Erkenntnisse wurden durch beide Kontinentalrand-Ozeanbecken-Bohrtraversen gewonnen. Diese führten zu einem besseren Verständnis der frühen Rift-Geschichte dieses Kontinentalrandes vom Oberperm bis in die Obertrias (Dehnungs- und Blocktektonik, fluviodeltaische/Flachwasserkarbonat-Paläoenvironments, bedeutender rhätischer Aufbau einer Karbonatplatform, Früh-Rift-Vulkanismus); der Prozesse während der Rift-Drift-Übergangsphase (bedeutende Blocktektonik während des Juras mit lokaler Hebung,Riftflanken-Kippung und subaenscher, erosiver Post-Rift-Diskordanz); des Alters und Paläoenvironments des ältesten Teils des Indischen Ozeans (Aufbrechen möglicherweise erst im Ober-Berrias/Unter-Valendis, mindestens 20 Ma Jahre später als erwartet); der »jugendlichen Ozeanphase« (transgressive, kondensierte unterneokome Belemnitensande mit CalcisphärenKreidekalken und Bentonitlagen auf dem Wombat-Plateau); der »reifen Ozeanphase« (post-mittelkretazische eupelagische Kreidekalke); der geochemischen Beschaffenheit und Entstehung alter ozeanischer Kruste und der sie überlagernden Ozeansedimente in einer »geochemischen Referenzbohrung«; sowie der mesozoischen Chrono- (Bio-Magneto-)Stratigraphie und des Alters sowie der Ursachen der bedeutenden relativen Meeresspiegelschwankungen, besonders während der Obertrias und Unterkreide.
    Type of Medium: Electronic Resource
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  • 5
    Publication Date: 2009-10-29
    Description: The Neoproterozoic Eon is relatively poorly known from a petroleum perspective, despite the existence of producing, proven and potential plays in many parts of the world. In tectonic, climatic and petroleum systems terms, the Neoproterozoic to Early Cambrian period can be divided into three distinct phases: a Tonian to Early Cryogenian phase, prior to about 750 Ma, dominated by the formation, stabilization and initial break-up of the supercontinent of Rodinia; a mid Cryogenian to Early Ediacaran phase (c. 750-600 Ma) including the major global-scale Sturtian' and Marinoan' glaciations and a mid Ediacaran to Early Cambrian (c. post 600 Ma) phase corresponding with the formation and stabilization of the Gondwana Supercontinent. There is increasing evidence that deposition of many mid to late Neoproterozoic (to Early Palaeozoic) organic-rich units was triggered by strong post-glacial sea level rise on a global scale, following the Snowball Earth' type glaciations, coupled with basin development and rifting on a more local scale. Fieldwork in North Africa including the Taoudenni Basin in Mauritania, Algeria and Mali; the Anti-Atlas region of Morocco and the Cyrenaica, Kufra and Murzuk basins in Libya has added to the understanding of reservoir, source and seal relationships and confirmed the widespread presence of Precambrian stromatolitic carbonate units of potential reservoir facies. Current research on the chronostratigraphy, distribution and quality of source rocks, controls on reservoir quality and distribution of seals in the Precambrian-Early Cambrian hydrocarbon plays throughout South America, North Africa, the Middle East and the Indian Subcontinent is documented in this Special Publication.
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  • 6
    Publication Date: 1988-09-01
    Print ISSN: 0891-2556
    Electronic ISSN: 1878-5212
    Topics: Geosciences
    Published by Springer
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  • 7
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  • 10
    Publication Date: 2008-02-27
    Print ISSN: 2572-4517
    Electronic ISSN: 2572-4525
    Topics: Geosciences
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