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all geography including DSDP/ODP Sites and Legs
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Africa
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Central Africa
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Congo Democratic Republic
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East Africa
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Primary terms
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GeoRef Categories
Era and Period
Epoch and Age
Book Series
Date
Availability
MODERN METHODS OF QUANTITATIVE ASSESSMENT OF THE STRUCTURE OF HYDROCARBON RESOURCES OF LARGE PETROLEUM BASINS Available to Purchase
Tectonic–Hydrothermal Processes and their Relationship with the Petroleum Potential of the Bazhenov-Abalak Complex of Western Siberia Available to Purchase
Upper Jurassic Sediments in the Western Side of the Frolovskoye Basin in West Siberia: Diverse Patterns and Environments of Deposition Available to Purchase
Savelievaite, Mg 2 CrO 2 (BO 3 ), the first natural borate with species-defining Cr 3+ and the ludwigite–savelievaite isomorphous series Available to Purchase
A primer on West Siberian Basin stratigraphy: Chronostratigraphic cross-references for Cretaceous- and Jurassic-age strata, Russian Federation Available to Purchase
Sequence Stratigraphy of Subcontinental Reservoirs of the Upper Part of the Tanopcha Formation of the Minkhov Field (North of Western Siberia) Available to Purchase
Geochemistry of Crude Oils from the Bazhenov Horizon (West Siberia) Available to Purchase
Differentiation of the Bazhenov Formation Bitumoids in the North-Surgut Region during Generation and Migration Available to Purchase
On Magnitudes and Inferred Yields of the 39 Underground Nuclear Test Explosions at the Novaya Zemlya Test Site Available to Purchase
A Method for Correction of Shoulder-Bed Effect on Resistivity Logs Based on a Convolutional Neural Network Available to Purchase
Seismic Monitoring of Novaya Zemlya: Progress, Challenges, and Prospects Available to Purchase
Organic Matter and Generation Potential of Paleozoic Deposits in the Tal’bei Block of the Chernyshev Ridge (Timan–Pechora Petroleum Province) Available to Purchase
Native Gold of the Chudnoe Gold–Palladium Deposit (Subpolar Urals, Russia) Available to Purchase
On the Creation of a Digital Permanently Operating Structural Model for the Sedimentary Cover of the West Siberian Petroleum Province Available to Purchase
Backthrust play of the Chernyshev swell, Timan-Pechora Basin: Reentry into a legacy exploration site based on multidisciplinary study Available to Purchase
The West Siberian Super Basin: The largest and most prolific hydrocarbon basin in the world Available to Purchase
Correlations among Thermal Conductivity, Porosity, and Permeability of Mesozoic Sandstones and Siltstones from the Southern Regions of the West Siberian Plate Available to Purchase
Impact of a northern-hemispherical cryosphere on late Pliensbachian–early Toarcian climate and environment evolution Available to Purchase
Abstract The historical view of an equable Jurassic greenhouse world has been challenged by recent studies documenting recurrent alternation between contrasting climate modes. Cooling of high-latitudinal areas may have been caused by orogenic processes at the northern margin of the Tethys Ocean that reduced heat transport towards the polar regions. Warm phases correlate to periods of intensified volcanism. The Jenkyns Event occurred during the transition from a late Pliensbachian icehouse into an early Toarcian greenhouse. Parallel evolution of different environmental processes, including sea level, climate and carbon cycle, indicate a causal mechanism tied to astronomical forcing. Insolation-controlled variations in the extent of the cryosphere (ice caps and permafrost) facilitated orbitally paced sea-level cycles via waxing and waning of the polar ice caps, and negative carbon isotope excursions via the release of cryosphere-bound 12 C-enriched carbon. This review and synthesis of sedimentological, geochemical and palaeontological palaeoenvironment indicators, and of simulations from climate models, aims to reconstruction, in particular, the high-latitudinal environmental conditions of late Pliensbachian–early Toarcian times. Focus is laid on the extent of the regions that were potentially suitable for hosting a cryosphere. An environmental response to cryosphere dynamics is considered to have been a key component of the Jenkyns Event.