Oil and gas prospects in the Mesozoic section of the Barents Sea basin

Stoupakova, A.V.; Kiryukhina, T.A.; Суслова, А.А.; Norina, D.A.; Mayer, N.M.; Pronina, N.V.; Mordasova, Alina V.

doi:10.18599/grs.61.2.2

Cited by 9 publications

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“…The sigmoidal clinoforms are characterised by a lower transgressive part represented by siltstones with coalified detritus, mica and sideritic concretions. Pyrolysis Rock‐Eval demonstrates increased content of organic matter of III type: TOC = 1.9%, HI = 105 mg/g TOC (Stoupakova et al., 2015). Coal petrography study in UV light demonstrates presence of algal organic matter, and lenses and drops of liquid bitumen (Figure 21).…”

Section: Resultsmentioning

confidence: 99%

“…Amorphous algogenic organic matter and liquid bitumen in the coal lenses of clayey siltstone. Sequence S1, Luninskaya‐1 well, 1291–1297 m, sample 6 (after Stoupakova et al., 2015). (a) Reflected light, (b) UV light.…”

Section: Resultsmentioning

confidence: 99%

“…In the cuttings and in a core, cherty shales with ammonites, belemnites, radiolarians, bivalves, foraminifera, fish bones and worm channels; muscovite, glauconite, tourmaline and pyrite are observed (Figure 11c,d). The cherty shales in the foresets have low content of TOC = 0.44% (Stoupakova et al., 2015).…”

Section: Resultsmentioning

confidence: 99%

“…ammonites, belemnites and fishes. The succession is characterised by low TOC content caused by dilution due to intensive input of clastic material (Stoupakova et al., 2015).…”

Section: Resultsmentioning

confidence: 99%

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Sequence stratigraphy and palaeogeography of the Upper Jurassic and Lower Cretaceous in the Eastern Barents Sea

Mordasova,

Stoupakova,

Suslova

et al. 2024

Basin Research

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The Upper Jurassic–Lower Cretaceous sedimentary rocks in the Eastern Barents Sea Basin are up to 2 km thick and represent one of the least studied Arctic intervals. Here, for the first time, we present a detailed analysis of 43,000 km of 2D seismic profiles, as well as well‐log and core data from 24 offshore wells with the aim to create a comprehensive sequence stratigraphic framework that can be integrated with the rest of the basin. Results show that (1) seven third‐order sequences and five types of clinoforms can be identified based on integrated seismic and well data. The age of each sequence was established based on published biostratigraphic investigations along with new dinocyst interpretations included in this study; (2) the deep marine basin was gradually filled with sediments coming from north, east and south as a response to HALIP, Canada Basin opening and Cimmerian uplift of Novaya Zemlya, and was preserved only in the south‐western part of the Barents Sea Basin at the end of Early Cretaceous and (3) both Eastern Barents Sea and West Siberia Basin share similarities in sedimentary environments and tectonic setting, though the spatial distribution of clastic reservoirs in Upper Jurassic and Lower Cretaceous mega‐sequence heavily depends on the source areas that require more provenance focused research. The results presented here can be used in further regional exploration in the area and to better understand the geodynamic evolution of the Greater Barents Sea Basin.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

“…ammonites, belemnites and fishes. The succession is characterised by low TOC content caused by dilution due to intensive input of clastic material (Stoupakova et al., 2015).…”

Section: Resultsmentioning

confidence: 99%

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Sequence stratigraphy and palaeogeography of the Upper Jurassic and Lower Cretaceous in the Eastern Barents Sea

Mordasova,

Stoupakova,

Suslova

et al. 2024

Basin Research

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“…We can assume that the benthic microbial communities of the Barents Sea play an important role in shaping the biogeochemical cycles of the entire Arctic Ocean. Moreover, the shelf of the Barents Sea is one of the most economically promising regions in the Arctic due to its resources and geographical location [ 3 ]. Several oil and gas fields, including one of the world’s largest, the Shtokman gas condensate field, were discovered in the southern Barents Sea [ 4 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

Structure of Benthic Microbial Communities in the Northeastern Part of the Barents Sea

Stroeva,

Klyukina,

Vidishcheva

et al. 2024

Microorganisms

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The Barents Sea shelf is one of the most economically promising regions in the Arctic in terms of its resources and geographic location. However, benthic microbial communities of the northeastern Barents Sea are still barely studied. Here, we present a detailed systematic description of the structures of microbial communities located in the sediments and bottom water of the northeastern Barents Sea based on 16S rRNA profiling and a qPCR assessment of the total prokaryotic abundance in 177 samples. Beta- and alpha-diversity analyses revealed a clear difference between the microbial communities of diverse sediment layers and bottom-water fractions. We identified 101 microbial taxa whose representatives had statistically reliable distribution patterns between these ecotopes. Analysis of the correlation between microbial community structure and geological data yielded a number of important results—correlations were found between the abundance of individual microbial taxa and bottom relief, thickness of marine sediments, presence of hydrotrolite interlayers, and the values of pH and Eh. We also demonstrated that a relatively high abundance of prokaryotes in sediments can be caused by the proliferation of Deltaproteobacteria representatives, in particular, sulfate and iron reducers.

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Middle Jurassic–Lower Cretaceous glendonites from the eastern Barents Shelf as a tool for paleoenvironmental and paleoclimatic reconstructions

Mikhailova

Rogov

Ershova

et al. 2021

Palaeogeography, Palaeoclimatology, Palaeoecology

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Oil and gas prospects in the Mesozoic section of the Barents Sea basin

Cited by 9 publications

References 0 publications

Sequence stratigraphy and palaeogeography of the Upper Jurassic and Lower Cretaceous in the Eastern Barents Sea

Sequence stratigraphy and palaeogeography of the Upper Jurassic and Lower Cretaceous in the Eastern Barents Sea

Structure of Benthic Microbial Communities in the Northeastern Part of the Barents Sea

Middle Jurassic–Lower Cretaceous glendonites from the eastern Barents Shelf as a tool for paleoenvironmental and paleoclimatic reconstructions

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