Results 1 to 10 of about 282,741 (418)

From shallow-water carbonate ramp to hemipelagic deep-marine carbonate deposition: Part 3. Lithostratigraphy and Formations of the Middle to Late Anisian Bulog sedimentary successions (Bulog Group) in the Dinarides (Bosnia and Herzegovina, Serbia, Montenegro) [PDF]

open access: yesGeološki Anali Balkanskoga Poluostrva, 2023
In the Middle Anisian the opening of the Neo‐Tethys started and this is characterized by a significant change in deposition in the whole Western Tethys Realm.
Sudar Milan   +5 more
doaj   +1 more source

Some new ichnospecies stored in the Geological Department of the National Museum of Natural History, NAS of Ukraine

open access: yesGeo&Bio, 2021
During the last decades, many scientists worldwide have focused on the study of activity signs of animals. Such signs of various animals have appeared in the geological history since Ediacaran rocks and can be found until today.
Volodymyr Grytsenko
doaj   +1 more source

PALEOGEOGRAPHY OF THE TYUMEN FORMATION WITHIN THE UST-BALYK-MAMONTOV SHAFT

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2022
The relevance of studying the Tyumen formation is justified by the fact that at present there is a decline in oil production from the Lower Cretaceous and Upper Jurassic intervals. As a result, there is a need to replenish the production fund.
Dmitry A. Staroselets, Pavel V. Smirnov
doaj   +1 more source

APPLICATION OF SEISMIC FACIES ANALYSIS FOR EVALUATING THE PROSPECTS OF COMPLEX CARBONATE RESERVOIR ON THE EXAMPLE OF OIL DEPOSIT (BY THE DATA OF WELL LOGS)

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2021
The relevance of the research is determined by the need to minimize the uncertainties of geological interpretation using various classification algorithms in processing the entire complex of geological and geophysical data.
Kristina Yu. Chuchalina   +1 more
doaj   +1 more source

Sedimentology, facies and depositional model of the alluvial fan of Abyek, Qazvin [PDF]

open access: yesJournal of Stratigraphy and Sedimentology Researches, 2022
This study was done to describe and interpret the facies, the provenance of sediments, pedogenesis processes, and the model of the Abyek alluvial fan in the northern margin of Qazvin Plain, using 45 sediment samples in the form of nine profiles and nine ...
Vida Davoudi   +2 more
doaj   +1 more source

An updated stratigraphic and environmental framework for the distribution of Silurian vertebrates on Gotland [PDF]

open access: yesEstonian Journal of Earth Sciences, 2015
In this work, previously published occurrences of vertebrates from the latest Llandovery to end-Ludlow successions of Gotland, Sweden, are gathered and summarized in an updated stratigraphic framework, which also incorporates facies differences of ...
Oskar Bremer, Henning Blom
doaj   +1 more source

Facies Modeling of Heterogeneous Carbonates Reservoirs by Multiple Point Geostatistics [PDF]

open access: yesJournal of Petroleum Science and Technology, 2016
Facies modeling is an essential part of reservoir characterization. The connectivity of facies model is very critical for the dynamic modeling of reservoirs. Carbonate reservoirs are so heterogeneous that variogram-based methods like sequential indicator
Aliakbar Bayat   +3 more
doaj   +1 more source

Lithostratigraphy and depositional episodes of the Oligocene carbonate-rich Tikorangi Formation, Taranaki Basin, New Zealand [PDF]

open access: yes, 2003
The subsurface Oligocene Tikorangi Formation is a unique and important oil producer in the onshore Waihapa-Ngaere Field, Taranaki Basin, being the only carbonate and fracture-producing reservoir within the basin. Core sample data from seven onshore wells
Hood, Steven D.   +2 more
core   +5 more sources

STRUCTURAL FEATURES AND FORMATION CONDITIONS OF EARLY FAMENIAN RIFFOGENIC SEDIMENTS IN THE SOUTHERN PART OF THE DENISOV DEPRESSION OF THE TIMAN-PECHORA OIL AND GAS PROVINCE

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2023
Relevance. Currently, due to the growth of hard-to-recover resources and hydrocarbon reserves, the study of carbonate rocks of complex structure, in particular the Zadon-Eelets sediments of the Upper Devonian-Tournaisian oil and gas complex of the ...
Sergey N. Krivoschekov   +1 more
doaj   +1 more source

Facies models of the Achimov Formation of East-Urengoiskoe license as the basis for optimizing exploration and field development patterns

open access: yesGeoresursy, 2020
The results of sedimentological core analysis of the Achimov Formation (Upper Valanginian, Lower Cretaceous) confirm that it was formed by higher efficiency systems of submarine fans in (relatively) deep marine basin.
Alena V. Khramtsova   +6 more
doaj   +1 more source

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