Cenozoic erosion and the preglacial uplift of the Svalbard–Barents Sea region

Dimakis, Panagiotis; Braathen, Bjørn Inge; Faleide, Jan Inge; Elverhøi, Anders; Guðlaugsson, Steinar Þór

doi:10.1016/s0040-1951(98)00245-5

Cited by 137 publications

(115 citation statements)

References 23 publications

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“…Cenozoic erosion was in the order of 2-3 km on Svalbard and the Svalbard Platform ( Fig. 1) and 1-2 km south of Bear Island (Dimakis et al 1998). The depocenters for these sediments were the Bear Island Fan west of the Senja Margin and the Storfjorden Fan west of the Hornsund Margin (Fig.…”

Section: Regional Geological Evolutionmentioning

confidence: 95%

An integrated geophysical study of Vestbakken Volcanic Province, western Barents Sea continental margin, and adjacent oceanic crust

et al. 2012

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Section: Regional Geological Evolutionmentioning

confidence: 95%

An integrated geophysical study of Vestbakken Volcanic Province, western Barents Sea continental margin, and adjacent oceanic crust

et al. 2012

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“…Increase in sedimentation rate formed huge, regional depocentres near the shelf edge offshore Mid-Norway and in front of bathymetric troughs in the northern North Sea and western Barents Sea (Faleide et al, 2008). Uplift and glacial erosion during Pliocene to Pleistocene (Dimakis et al, 1998;Doré and Jensen, 1996;Dörr et al, 2012;Faleide et al, 1996;Green and Duddy, 2010;Henriksen et al, 2011;Vorren et al, 1991) has evolved the deep marine fans in the adjacent oceanic domains along the northern and western passive margins (Knies et al, 2009). …”

Section: Tectonic Evolution Of the Southwestern Barents Seamentioning

confidence: 99%

Deep-seated faults and hydrocarbon leakage in the Snøhvit Gas Field, Hammerfest Basin, Southwestern Barents Sea

Mohammedyasin

Lippard

Omosanya

et al. 2016

Marine and Petroleum Geology

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High-quality 3D seismic data are used to analyze the history of fault growth and hydrocarbon leakage in the Snøhvit Field, southwestern Barents Sea. The aim of this work is to evaluate the role of tectonic fracturing as a mechanism driving fluid-flow in the study area. To achieve this aim, an integrated approach including seismic interpretation, multiple seismic attribute analysis, fault modeling and displacement analysis was used.The six major faults in the study area are dip-slip normal faults which are characterized by complex lateral and vertical segmentation. The three main episodes of fault reactivation interpreted were in late Jurassic (Kimmeridgian), early Cretaceous and Paleocene times. Fault reactivation in the study area is mainly through dip-linkage. Throw-distance plots of the representative faults also revealed along-strike linkage and multi-skewed C-type profiles. The throw profiles show that faults in the study area evolved through polycyclic activity involving both blind propagation, syn-sedimentary activity and that they have their maximum displacement at the reservoir zone. The expansion and growth indices provide evidence for coeval fault activity with sedimentation and interaction of the faults with a free surface during their evolution.

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“…2). The ages of the late Eocene erosion event coincide with timing of the rift flank uplift in the Barents Sea (Dimakis et al, 1998) and an increased amount of erosion affecting the southwestern Barents Sea. The late Cenozoic erosion age (10-2 Ma) is supported by sedimentological and geochemical data from the Atlantic-Arctic gateway showing that the entire northwestern European margin was uplifted during the late Miocene-early Pliocene (Knies et al, 2014).…”

Section: Discussionmentioning

confidence: 85%

“…2). In Eocene to Miocene times, the uplifted parts of the Barents Sea shelf were subject to erosion and the eroded material was deposited in the southern and eastern Barents Sea (Rasmussen and Fjeldskaar, 1996;Dimakis et al, 1998). In the HB two major cooling phases linked to uplift and erosion, dated between ~40 and 20 Ma and ~20 and 0 Ma, were identified using AFTA (Green and Duddy, 2010).…”

Section: Geological Overviewmentioning

confidence: 99%

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Assessment of the Cenozoic Erosion Amount Using Monte Carlo Type-Petroleum Systems Modeling of the Hammerfest Basin, Western Barents Sea

Zięba¹,

Daszinnies²,

Emmel³

et al. 2014

American Journal of Geoscience

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The Cenozoic uplift and erosion is often believed to be a major risk factor in hydrocarbon exploration in the Barents Sea causing petroleum redistribution and leakage from filled traps. Therefore, the estimation of erosion amount is an important but often underrepresented task in the basin modeling procedure. The assessment of erosion magnitudes and spatial distribution by geochemical and thermo chronological methods results in very different estimates and/or does not consider uncertainties of input data. In this study, this problem is approached by using Monte Carlo simulation techniques in secondary migration basin modeling. Thereby, amounts of early and late Cenozoic erosion episodes are described by probability distributions and the modeling results were evaluated considering their uncertainty ranges. In addition, overpressure and related leakage scenarios are considered in the petroleum basin models to study their effect on modeling results. It is shown that the early Cenozoic erosion event had a generally higher erosion magnitude than the late Cenozoic event (1.0-1.3 and 0.4-1.2 km respectively). Modeled erosion estimates are not very sensitive to overpressure modeling which is found to affect only the early Cenozoic erosion amount estimates at low degree.

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Cenozoic erosion and the preglacial uplift of the Svalbard–Barents Sea region

Cited by 137 publications

References 23 publications

An integrated geophysical study of Vestbakken Volcanic Province, western Barents Sea continental margin, and adjacent oceanic crust

An integrated geophysical study of Vestbakken Volcanic Province, western Barents Sea continental margin, and adjacent oceanic crust

Deep-seated faults and hydrocarbon leakage in the Snøhvit Gas Field, Hammerfest Basin, Southwestern Barents Sea

Assessment of the Cenozoic Erosion Amount Using Monte Carlo Type-Petroleum Systems Modeling of the Hammerfest Basin, Western Barents Sea

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