Jan Inge Faleide

• Corseri, Romain; Faleide, Thea Sveva; Faleide, Jan Inge; Midtkandal, Ivar; Serck, Christopher Sæbø; Trulsvik, Mikal & Planke, Sverre (2018). A diverted submarine channel of Early Cretaceous age revealed by high-resolution seismic data, SW Barents Sea. Marine and Petroleum Geology.  ISSN 0264-8172.  98, s 462- 476 . doi: 10.1016/j.marpetgeo.2018.08.037
• Ershova, Victoria; Anfinson, Owen; Prokopiev, Andrei; Khudoley, Andrei; Stockli, Daniel; Faleide, Jan Inge; Gaina, Carmen & Malyshev, Nikolay (2018). Detrital zircon (U-Th)/He ages from Paleozoic strata of the Severnaya Zemlya Archipelago: Deciphering multiple episodes of Paleozoic tectonic evolution within the Russian High Arctic. Journal of Geodynamics.  ISSN 0264-3707. . doi: 10.1016/j.jog.2018.02.007
• Gac, Sebastien; Hansford, Peter Anthony & Faleide, Jan Inge (2018). Basin modelling of the SW Barents Sea. Marine and Petroleum Geology.  ISSN 0264-8172.  95, s 167- 187 . doi: 10.1016/j.marpetgeo.2018.04.022
• Indrevær, Kjetil; Gac, Sebastien; Gabrielsen, Roy Helge & Faleide, Jan Inge (2018). Crustal-scale subsidence and uplift caused by metamorphic phase changes in the lower crust: A model for the evolution of the Loppa High area, SW Barents Sea from late Paleozoic to Present. Journal of the Geological Society.  ISSN 0016-7649.  175(3), s 497- 508 . doi: 10.1144/jgs2017-063 Fulltekst i vitenarkiv.
• Koehl, Jean-Baptiste; Bergh, Steffen G; Henningsen, Tormod & Faleide, Jan Inge (2018). Middle to Late Devonian–Carboniferous collapse basins on the Finnmark Platform and in the southwesternmost Nordkapp basin, SW Barents Sea. Solid Earth.  ISSN 1869-9510.  9(2), s 341- 372 . doi: 10.5194/se-9-341-2018 Fulltekst i vitenarkiv.
• Medvedev, Sergei; Hartz, Ebbe Hvidegård & Faleide, Jan Inge (2018). Erosion-driven vertical motions of the circum Arctic: Comparative analysis of modern topography. Journal of Geodynamics.  ISSN 0264-3707. . doi: 10.1016/j.jog.2018.04.003
• Shulgin, Alexey A; Mjelde, Rolf; Faleide, Jan Inge; Høy, Tore; Flueh, Ernst & Thybo, Hans (2018). The crustal structure in the transition zone between the western and eastern Barents Sea. Geophysical Journal International.  ISSN 0956-540X.  214(1), s 315- 330 . doi: 10.1093/gji/ggy139
• Yenwongfai, Honore Dzekamelive; Mondol, Nazmul Haque; Lecomte, Isabelle; Faleide, Jan Inge & Leutscher, Johan (2018). Integrating facies‐based Bayesian inversion and supervised machine learning for petro‐facies characterization in the Snadd Formation of the Goliat Field, south‐western Barents Sea. Geophysical Prospecting.  ISSN 0016-8025. . doi: 10.1111/1365-2478.12654 Fulltekst i vitenarkiv. Vis sammendrag

  Seismic petro‐facies characterization in low net‐to‐gross reservoirs with poor reservoir properties such as the Snadd Formation in the Goliat field requires a multidisciplinary approach. This is especially important when the elastic properties of the desired petro‐facies significantly overlap. Pore fluid corrected endmember sand and shale depth trends have been used to generate stochastic forward models for different lithology and fluid combinations in order to assess the degree of separation of different petro‐facies. Subsequently, a spectral decomposition and blending of selected frequency volumes reveal some seismic fluvial geomorphological features. We then jointly inverted for impedance and facies within a Bayesian framework using facies‐dependent rock physics depth trends as input. The results from the inversion are then integrated into a supervised machine learning neural network for effective porosity discrimination. Probability density functions derived from stochastic forward modelling of endmember depth trends show a decreasing seismic fluid discrimination with depth. Spectral decomposition and blending of selected frequencies reveal a dominant NNE trend compared to the regional SE–NW pro‐gradational trend, and a local E–W trend potentially related to fault activity at branches of the Troms‐Finnmark Fault Complex. The facies‐based inversion captures the main reservoir facies within the limits of the seismic bandwidth. Meanwhile the effective porosity predictions from the multilayer feed forward neural network are consistent with the inverted facies model, and can be used to qualitatively highlight the cleanest regions within the inverted facies model. A combination of facies‐based inversion and neural network improves the seismic reservoir delineation of the Snadd Formation in the Goliat Field.

• Zastrozhnov, Dmitrii; Gernigon, Laurent; Gogin, I; Abdelmalak, Mohamed Mansour; Planke, Sverre; Faleide, Jan Inge; Eide, S. & Myklebust, R. (2018). Cretaceous-Paleocene Evolution and Crustal Structure of the Northern V?ring Margin (Offshore Mid-Norway): Results from Integrated Geological and Geophysical Study. Tectonics.  ISSN 0278-7407.  37(2), s 497- 528 . doi: 10.1002/2017TC004655
• Aarseth, Iselin; Mjelde, Rolf; Breivik, Asbjørn Johan; Minakov, Alexander; Faleide, Jan Inge; Flueh, Ernst R. & Huismans, Ritske (2017). Crustal structure and evolution of the Arctic Caledonides: Results fromcontrolled-source seismology. Tectonophysics.  ISSN 0040-1951.  718, s 9- 24 . doi: 10.1016/j.tecto.2017.04.022 Fulltekst i vitenarkiv.
• Abdelmalak, Mohamed Mansour; Faleide, Jan Inge; Planke, Sverre; Gernigon, Laurent; Zastrozhnov, Dmitry; Shephard, Grace & Myklebust, Reidun (2017). The T-Reflection and the Deep Crustal Structure of the Vøring Margin, Offshore mid-Norway. Tectonics.  ISSN 0278-7407.  36(11), s 2497- 2523 . doi: 10.1002/2017TC004617 Fulltekst i vitenarkiv.
• Blaich, Olav Antonio; Tsikalas, Filippos & Faleide, Jan Inge (2017). New insights into the tectono-stratigraphic evolution of the southern Stappen High and its transition to Bjørnøya Basin, SW Barents Sea. Marine and Petroleum Geology.  ISSN 0264-8172.  85, s 89- 105 . doi: 10.1016/j.marpetgeo.2017.04.015
• Breivik, Asbjørn Johan; Faleide, Jan Inge; Mjelde, Rolf; Flueh, Ernst R. & Murai, Yoshio (2017). A new tectono-magmatic model for the Lofoten/Vesterålen Margin at the outer limit of the Iceland Plume influence. Tectonophysics.  ISSN 0040-1951.  718, s 25- 44 . doi: 10.1016/j.tecto.2017.07.002 Fulltekst i vitenarkiv.
• Ershova, Victoria B.; Prokopiev, Andrei V.; Sobolev, Nikolai N.; Petrov, EO; Khudoley, Andrey K.; Faleide, Jan Inge; Gaina, Carmen & Belyakova, RV (2017). New data on the basement of Franz Josef Land, Arctic region. Geotectonics.  ISSN 0016-8521.  51(2), s 121- 130 . doi: 10.1134/S0016852117020030
• Faleide, Jan Inge; Pease, Victoria; Curtis, Mike; Klitzke, Peter; Minakov, Alexander; Scheck-Wenderoth, Magdalena; Kostyuchenko, Sergei & Zayonchek, Andrei (2017). Tectonic implications of the lithospheric structure across the Barents and Kara shelves. Geological Society Special Publication.  ISSN 0305-8719.  460, s 285- 314 . doi: 10.1144/SP460.18 Vis sammendrag

  This paper considers the lithospheric structure and evolution of the wider Barents–Kara Sea region based on the compilation and integration of geophysical and geological data. Regional transects are constructed at both crustal and lithospheric scales based on the available data and a regional three-dimensional model. The transects, which extend onshore and into the deep oceanic basins, are used to link deep and shallow structures and processes, as well as to link offshore and onshore areas. The study area has been affected by numerous orogenic events in the Precambrian– Cambrian (Timanian), Silurian–Devonian (Caledonian), latest Devonian–earliest Carboniferous (Ellesmerian–Svalbardian), Carboniferous–Permian (Uralian), Late Triassic (Taimyr, Pai Khoi and Novaya Zemlya) and Palaeogene (Spitsbergen -Eurekan). It has also been affected by at least three episodes of regional-scale magmatism, the so-called large igneous provinces: the Siberian Traps (Permian–Triassic transition), the High Arctic Large Igneous Province (Early Cretaceous) and the North Atlantic (Paleocene–Eocene transition). Additional magmatic events occurred in parts of the study area in Devonian and Late Cretaceous times. Within this geological framework, we integrate basin development with regional tectonic events and summarize the stages in basin evolution. We further discuss the timing, causes and implications of basin evolution. Fault activity is related to regional stress regimes and the reactivation of pre-existing basement structures. Regional uplift/subsidence events are discussed in a source-to-sink context and are related to their regional tectonic and palaeogeographical settings.

• Fazli Khani, Hamed; Fossen, Haakon; Gawthorpe, Robert; Faleide, Jan Inge & Bell, Rebecca E. (2017). Basement structure and its influence on the structural configuration of the northern North Sea rift. Tectonics.  ISSN 0278-7407.  36(6), s 1151- 1177 . doi: 10.1002/2017TC004514 Fulltekst i vitenarkiv.
• Indrevær, Kjetil; Gabrielsen, Roy Helge & Faleide, Jan Inge (2017). Early Cretaceous synrift uplift and tectonic inversion in the Loppa High area, southwestern Barents Sea, Norwegian shelf. Journal of the Geological Society.  ISSN 0016-7649.  174(2), s 242- 254 . doi: 10.1144/jgs2016-066 Fulltekst i vitenarkiv.
• Minakov, Alexander; Yarushina, Viktoriya M.; Faleide, Jan Inge; Krupnova, Natalia; Sakoulina, Tamara; Dergunov, Nikolay & Glebovsky, Vladimir (2017). Dyke emplacement and crustal structure within a continental large igneous province, northern Barents Sea. Geological Society Special Publication.  ISSN 0305-8719.  (460), s 371- 395 . doi: 10.1144/SP460.4 Fulltekst i vitenarkiv.
• Serck, Christopher Sæbø; Faleide, Jan Inge; Braathen, Alvar; Kjølhamar, Bent & Escalona Varela, Alejandro (2017). Jurassic to Early Cretaceous basin configuration(s) in the Fingerdjupet Subbasin, SW Barents Sea. Marine and Petroleum Geology.  ISSN 0264-8172.  86, s 874- 891 . doi: 10.1016/j.marpetgeo.2017.06.044 Fulltekst i vitenarkiv.
• Serck, Christopher Sæbø; Faleide, Jan Inge; Braathen, Alvar; Kjølhamar, Bent & Escalona, Alejandro (2017). Jurassic to Early Cretaceous basin configuration(s) in the Fingerdjupet Subbasin, SW Barents Sea. Marine and Petroleum Geology.  ISSN 0264-8172.  86, s 874- 891 . doi: 10.1016/j.marpetgeo.2017.06.044.
• Theissen-Krah, Sonja; Zastrozhnov, Dmitrii; Abdelmalak, Mohamed Mansour; Schmid, Daniel Walter; Faleide, Jan Inge & Gernigon, Laurent (2017). Tectonic evolution and extension at the Møre Margin – Offshore mid-Norway. Tectonophysics.  ISSN 0040-1951.  721, s 227- 238 . doi: 10.1016/j.tecto.2017.09.009
• Yenwongfai, Honore Dzekamelive; Mondol, Nazmul Haque; Faleide, Jan Inge & Lecomte, Isabelle (2017). Prestack simultaneous inversion to predict lithology and pore fluid in the Realgrunnen Subgroup of the Goliat Field, southwestern Barents Sea. Interpretation.  ISSN 2324-8858.  5(2), s SE75- SE96 . doi: 10.1190/INT-2016-0109.1 Fulltekst i vitenarkiv.
• Yenwongfai, Honore Dzekamelive; Mondol, Nazmul Haque; Faleide, Jan Inge; Lecomte, Isabelle & Leutscher, Johan (2017). Prestack inversion and multiattribute analysis for porosity, shale volume, and sand probability in the Havert Formation of the Goliat field, southwest Barents Sea. Interpretation.  ISSN 2324-8858.  5(3), s SL69- SL87 . doi: 10.1190/INT-2016-0169.1 Fulltekst i vitenarkiv. Vis sammendrag

  An integrated innovative multidisciplinary approach has been used to estimate effective porosity (PHIE), shale volume (Vsh), and sand probability from prestack angle gathers and petrophysical well logs within the Lower Triassic Havert Formation in the Goliat field, Southwest Barents Sea. A rock-physics feasibility study revealed the optimum petrofacies discriminating ability of extended elastic impedance (EEI) tuned for PHIE and Vsh. We then combined model-based prestack inversion outputs from a simultaneous inversion and an EEI inversion into a multilinear attribute regression analysis to estimate absolute Vsh and PHIE seismic attributes. The quality of the Vsh and PHIE prediction is shown to increase by integrating the EEI inversion in the workflow. Probability distribution functions and a priori petrofacies proportions extracted from the well data are then applied to the Vsh and PHIE volumes to obtain clean and shaly sand probabilities. A tectonic-controlled point-source depositional model for the Havert Formation sands is then inferred from the extracted sand bodies and the seismic geomorphological character of the different attributes

• Abdelmalak, Mohamed Mansour; Meyer, Romain; Planke, Sverre; Faleide, Jan Inge; Gernigon, Laurent; Frieling, J; Sluijs, Appy; Reichart, G-J; Zastrozhnov, Dmitrii; Theissen-Krah, Sonja; Said, Aymen & Myklebust, Reidun (2016). Pre-breakup magmatism on the Vøring margin: Insight from new sub-basalt imaging and results from Ocean Drilling program hole 642E. Tectonophysics.  ISSN 0040-1951.  675, s 258- 274 . doi: 10.1016/j.tecto.2016.02.037
• Abdelmalak, Mohamed Mansour; Planke, Sverre; Faleide, Jan Inge; Jerram, Dougal Alexander; Zastrozhnov, Dmitrii; Eide, Sigurd & Myklebust, Reidun (2016). The development of volcanic sequences at rifted margins: New insights from the structure and morphology of the Vøring Escarpment, mid-Norwegian Margin. Journal of Geophysical Research - Solid Earth.  ISSN 2169-9313.  121(7), s 5212- 5236 . doi: 10.1002/2015JB012788
• Anell, Ingrid Margareta; Faleide, Jan Inge & Braathen, Alvar (2016). Regional tectono-sedimentary development of the highs and basins of the northwestern Barents Shelf. Norsk Geologisk Tidsskrift.  ISSN 0029-196X.  96(1), s 27- 41 . doi: 10.17850/njg96-1-04 Fulltekst i vitenarkiv.
• Baig, Irfan; Faleide, Jan Inge; Jahren, Jens & Mondol, Nazmul Haque (2016). Cenozoic exhumation on the southwestern Barents Shelf: Estimates and uncertainties constrained from compaction and thermal maturity analyses. Marine and Petroleum Geology.  ISSN 0264-8172.  73, s 105- 130 . doi: 10.1016/j.marpetgeo.2016.02.024 Vis sammendrag

  The Barents Sea is believed to have been influenced in most parts by Cenozoic uplift and erosion episodes. The rocks in the area are not currently at their maximum burial depth. The exhumation of the sedimentary rocks has had large effects on rock physical properties and hydrocarbon maturation and migration. The current study seeks to estimate exhumation from shale compaction and thermal maturity techniques and discuss its implications for hydrocarbon exploration in the uplifted Barents Sea area. This study uses well logs and thermal maturity data together with widely distributed shot gather data along long-offset seismic reflection lines. The use of shale compaction techniques to estimate exhumation was focused particularly on the regionally preserved Aptian-Albian (Kolmule Formation) and Paleogene (Torsk Formation) shales. Normal compaction reference curves were established for these units in areas currently at their maximum burial depth (e.g. Sørvestsnaget Basin and Vestbakken Volcanic Province). The results suggest widespread Cenozoic exhumation throughout the southwestern Barents Sea. The exhumation magnitudes increase towards east and northeast. The average exhumation estimates from the three data sources range from ∼800 to 1400 m within the Hammerfest Basin, ∼1150–1950 m on the Loppa High, ∼1200–1400 m on the Finmark Platform and ∼1250–2400 m on the Bjarmeland Platform. The marked differences in glacial erosion from mass balance and average erosion estimates from the current study suggest a significant pre-glacial uplift and erosion in the southwestern Barents Sea area. The observed stratigraphy and presence of significant volumes of Late Oligocene-Middle Miocene sediments in basins at the outer margin, and increased erosion rates at the same time in source areas suggest that maximum burial in the southwestern Barents Sea may have occurred sometime during the Oligocene, or even earlier in the Eocene. The results from this study are useful input for modelling of source rock maturation, generation, migration and trapping of hydrocarbons in the area. These results are also an important input for the prediction of more precise reservoir and seal rock properties in frontier areas away from the exploration wells and provide valuable knowledge for the use of interval velocities in the uplifted areas.

• Fossen, Haakon; Khani, Hamed Fazli; Faleide, Jan Inge; Ksienzyk, Anna Katharina & Dunlap, W. James (2016). Post-Caledonian extension in the West Norway – northern North Sea region: Role of structural inheritance. Geological Society Special Publication.  ISSN 0305-8719.  439 . doi: 10.1144/SP439.6
• Gabrielsen, Roy Helge; Sokoutis, Dimitrios; Willingshofer, Ernst & Faleide, Jan Inge (2016). Fault linkage across weak layers during extension: an experimental approach with reference to the Hoop Fault Complex of the SW Barents Sea. Petroleum Geoscience.  ISSN 1354-0793.  22(2), s 123- 135 . doi: 10.1144/petgeo2015-029
• Gac, Sebastien; Klitzke, Peter; Minakov, Alexander; Faleide, Jan Inge & Scheck-Wenderoth, Magdalena (2016). Lithospheric strength and elastic thickness of the Barents Sea and Kara Sea region. Tectonophysics.  ISSN 0040-1951.  691(Part A), s 120- 132 . doi: 10.1016/j.tecto.2016.04.028
• Hammer, Øyvind; Planke, Sverre; Hafeez, Amer; Hjelstuen, Berit Oline Blihovde; Faleide, Jan Inge & Kvalø, Frode (2016). Agderia – A postglacial lost land in the southern Norwegian North Sea. Norsk Geologisk Tidsskrift.  ISSN 0029-196X.  96(1), s 43- 60 . doi: 10.17850/njg96-1-05
• Klitzke, Peter; Luzi-Helbing, Manja; Schicks, Judith M.; Cacace, Mauro; Jacquey, Antoine B.; Sippel, Judith; Scheck-Wenderoth, Magdalena & Faleide, Jan Inge (2016). Gas hydrate stability zone of the Barents Sea and Kara Sea region. Energy Procedia.  ISSN 1876-6102.  97, s 302- 309 . doi: 10.1016/j.egypro.2016.10.005 Fulltekst i vitenarkiv.
• Klitzke, Peter; Sippel, Judith; Faleide, Jan Inge & Scheck-Wenderoth, Magdalena (2016). A 3D gravity and thermal model for the Barents Sea and Kara Sea. Tectonophysics.  ISSN 0040-1951.  684, s 131- 147 . doi: 10.1016/j.tecto.2016.04.033
• Kvarven, Trond; Mjelde, Rolf; Hjelstuen, Berit Oline Blihovde; Faleide, Jan Inge; Thybo, Hans; Flueh, Ernst R. & Murai, Yoshio (2016). Crustal composition of the Møre Margin and compilation of a conjugate Atlantic margin transect. Tectonophysics.  ISSN 0040-1951.  666, s 144- 157 . doi: 10.1016/j.tecto.2015.11.002
• Midtkandal, Ivar; Svensen, Henrik; Planke, Sverre; Corfu, Fernando; Polteau, Stephane; Torsvik, Trond Helge; Faleide, Jan Inge; Grundvåg, Sten-Andreas; Selnes, Håvard; Kürschner, Wolfram Michael & Olaussen, Snorre (2016). The Aptian (Early Cretaceous) oceanic anoxic event (OAE1a) in Svalbard, Barents Sea, and the absolute age of the Barremian-Aptian boundary. Palaeogeography, Palaeoclimatology, Palaeoecology.  ISSN 0031-0182.  463, s 126- 135 . doi: 10.1016/j.palaeo.2016.09.023
• Mjelde, Rolf; Kvarven, Trond; Faleide, Jan Inge & Thybo, Hans (2016). Lower crustal high-velocity bodies along North Atlantic passive margins, and their link to Caledonian suture zone eclogites and Early Cenozoic magmatism. Tectonophysics.  ISSN 0040-1951.  670, s 16- 29 . doi: 10.1016/j.tecto.2015.11.021
• Yenwongfai, Honore Dzekamelive; Mondol, Nazmul Haque; Faleide, Jan Inge & Lecomte, Isabelle (2016). Prestack inversion for porosity, shale volume and sand probability in the Havert Formation of the Goliat field, SW Barents Sea.. SEG technical program expanded abstracts.  ISSN 1949-4645.  s 3543- 3547 . doi: 10.1190/segam2016-13943690.1 Vis sammendrag

  This study implements a multidisciplinary approach to porosity (PHIE), shale volume (Vsh) and sand probability estimation from prestack angle gathers and petrophysical well logs. A rock physics feasibility study revealed the optimum petrofacies discriminating ability of extended elastic impedance (EEI) and PHIE. Multilinear regression analysis is then applied to the output of the simultaneous inversion of seismic data to estimate Vsh and PHIE. Probability distribution functions (PDFs) and a priori facies extracted from the well data are then applied to the Vsh and PHIE volumes to obtain a sand probability cube for the Lower Triassic Havert Formation in the Goliat field, SW Barents Sea.

• Yenwongfai, Honore Dzekamelive; Mondol, Nazmul Haque; Lecomte, Isabelle & Faleide, Jan Inge (2016). Prestack simultaneous inversion to predict lithology in the Realgrunnen subgroup of the Goliat Field, SW Barents Sea, In .. .. (ed.),  7th EAGE Saint Petersburg International Conference and Exhibition.  European Association of Geoscientists and Engineers.  ISBN 9781510822498.  We LHR3 03. Vis sammendrag

  This study describes a successful multidisciplinary work flow for quantitative lithology prediction from prestack angle gathers and petrophysical well log data within the Realgrunnen Subgroup in the Goliat Field, Norwegian Barents Sea. An amplitude-versus-angle (AVA) qualitative attribute analyses was performed to assess the spatial distribution of lithology anomalies from the seismic data. A simultaneous prestack elastic inversion was also carried out for quantitative estimates of P-impedance and Vp/Vs ratios which were subsequently analysed using 3D cross plots. Probability distribution functions (PDFs), and a priori lithology class proportions extracted from the well log training data are then applied to the inverted seismic volume. AVA qualitative analyses showed a class-IV top reservoir response, and lithology anomalies interpreted from the scaled S-wave reflectivity attribute map revealed a qualitative spatial distribution of the reservoir sands. The confusion matrix from the best training dataset shows the largest misclassification between shaly sands and shales. PDFs from a rule based ternary lithology classification provided the best resolution for the clean sands. A good match is obtained between horizon attributes generated from angle gathers and that obtained from the clean sand and shaly sand probability maps combined.

• Abdelmalak, Mohamed Mansour; Andersen, Torgeir Bjørge; Planke, Sverre; Faleide, Jan Inge; Corfu, Fernando; Tegner, Christian; Shephard, Grace; Zastrozhnov, Dmitry & Myklebust, Reidun (2015). The ocean-continent transition in the mid-Norwegian margin: Insight from seismic data and an onshore Caledonian field analogue. Geology.  ISSN 0091-7613.  43(11), s 1011- 1014 . doi: 10.1130/G37086.1 Vis sammendrag

  ABSTRACT Understanding the structure of the ocean-continent transition (OCT) in passive margins is greatly enhanced by comparison with onshore analogues. The North Atlantic margins and the “fossil” system in the Scandinavian Caledonides show variations along strike between magma-rich and magma-poor margins, but are different in terms of exposure and degree of maturity. They both display the early stages of the Wilson cycle. Seismic reflection data from the mid-Norwegian margin combined with results from Ocean Drilling Program Leg 104 drill core 642E allow for improved subbasalt imaging of the OCT. Below the Seaward- Dipping Reflector (SDR) sequences, vertical and inclined reflections are interpreted as dike feeder systems. High-amplitude reflections with abrupt termination and saucer-shaped ge- ometries are interpreted as sill intrusions, implying the presence of sediments in the transi- tion zone beneath the volcanic sequences. The transitional crust located below the SDR of the mid-Norwegian margin has a well-exposed analogue in the Seve Nappe Complex (SNC). At Sarek (Sweden), hornfelsed sediments are truncated by mafic dike swarms with densi- ties of 70%–80% or more. The magmatic domain extends for at least 800 km along the Caledonides, and probably reached the size of a large igneous province. It developed at ca. 600 Ma on the margin of the Iapetus Ocean, and was probably linked to the magma-poor hyperextended segment in the southern Scandinavian Caledonides. These parts of the SNC represent an onshore analogue to the deeper level of the mid-Norwegian margin, permitting direct observation and sampling and providing an improved understanding, particularly of the deeper levels, of present-day magma-rich margins.

Se alle arbeider i Cristin

• Faleide, Jan Inge (2018). Barents Sea basin evolution - in time and space.
• Koehl, Jean-Baptiste P.; Bergh, Steffen G; Henningsen, Tormod; Faleide, Jan Inge; Smyrak-Sikora, Aleksandra; Olaussen, Snorre & Johannessen, Erik P. (2018). Mid/Late Devonian-early Carboniferous collapse basins in the Barents Sea and Svalbard.
• Baig, Irfan; Faleide, Jan Inge; Hjelstuen, Berit Oline Blihovde; Sejrup, Hans Petter; Nystuen, Johan Petter; Aagaard, Per; Jahren, Jens & Mondol, Nazmul Haque (2017). Seismic mapping of Quaternary sediment distribution in the central and northern North Sea.
• Baig, Irfan; Faleide, Jan Inge; Jahren, Jens & Mondol, Nazmul Haque (2017). Burial and exhumation history controls on shale compaction and thermal maturity along the Norwegian North Sea margin.
• Blaich, Olav Antonio; Tsikalas, Filippos & Faleide, Jan Inge (2017). Tectono-stratigraphic evolution of the Southern Stappen High and its transition to Bjørnøya Basin, SW Barents Sea. Vis sammendrag

  Within the context of the southwestern Barents Sea, the southern Stappen High and its transition to the Bjørnøya Basin are more or less still underexplored. Improved quality seismic reflection data are utilised to describe new insights into the Paleozoic to early Cenozoic tectono-stratigraphic evolution of the area, as well as to discuss the structural inheritance and the rift development. Well-defined syn-rift wedges and better resolution images for both the deep Carboniferous and Permian successions are revealed. In particular, both the mid-Carboniferous and Late Permian-earliest Triassic extensional phases are characterized by widespread NE-SW oriented normal faults that are mostly westward dipping. Although Triassic is mostly considered as a tectonically stable period in the Barents Sea, in the Stappen High proper there is clear identification of a localised depocentre (named herein “Intra Stappen Basin”) that extends for ~70 km where syn-tectonic geometries characterize the late Paleozoic and Triassic deposits, indicating tectonically active bounding faults. Regional correlation to Middle and Upper Triassic outcrops in southwestern Svalbard reveals possible similarities to progradation from a west-northwest Northeast Greenland provenance as an additional western sediment source area during the Triassic. Thin but distinct Jurassic sequences are expected to be present on Stappen High associated with prominent regional NW-SE extension throughout Late Jurassic that culminated during the earliest Cretaceous. Furthermore, structural and stratigraphic relations are observed within the study area that clearly indicate a distinct early Aptian rift phase with increasing evidence for its occurrence in the southwestern Barents Sea. Late Cretaceous fault activity was concentrated mostly at the greater Knølegga Fault Complex zone in southwest Stappen High with thick Late Cretaceous sequences bounded by impressive low-angle west-dipping detachment faults, implying a shift at that time from a brittle to a more ductile structural regime. During early Cenozoic, the study area is located at the proximity of the paleo-coastline and paleo-shelf edge for both Paleocene and Eocene gravity mass-waste deposits. These are most probably related to a progressively evolving steep bathymetric gradient between the developing margin, mainly towards the west and to the south, and uplifted areas in the region.

• Breivik, Asbjørn Johan; Faleide, Jan Inge; Mjelde, Rolf; Flueh, Ernst R. & Murai, Yoshio (2017). Origin of the Vøring Plateau, offshore Norway – interplay between timing of rifting and emplacement of plume material.
• Breivik, Asbjørn Johan; Faleide, Jan Inge; Mjelde, Rolf; Flueh, Ernst R. & Murai, Yoshio (2017). The Transition from Volcanic to Rift Dominated Crustal Breakup – From the Vøring Plateau to the Lofoten Margin, Norway.
• Faleide, Jan Inge (2017). Barents shelf tectonic evolution – recent advances.
• Faleide, Jan Inge (2017). Cenozoic evolution of the western Barents Sea-Svalbard margin.
• Faleide, Jan Inge (2017). Integrated Basin Studies – with examples from the Barents Sea.
• Faleide, Jan Inge (2017). Late Paleozoic-Mesozoic basin evolution in the SW Barents Sea – North Atlantic-Arctic links.
• Faleide, Jan Inge; Abdelmalak, Mohamed Mansour; Shephard, Grace; Torsvik, Trond Helge; Gaina, Carmen; Tsikalas, Filippos; Blaich, Olav Antonio; Planke, Sverre & Myklebust, Reidun (2017). Quantification and restoration of pre-drift extension across NE Atlantic conjugate margins.
• Gabrielsen, Roy Helge; Faleide, Jan Inge; Wong, P.W; Gac, Sebastien; Indrevær, Kjetil; Faisal Miraj, M.; Dinkgreve, Patricia; Sokoutis, Dimitrios & Pascal, Christophe (2017). Palaeogene North Atlantic opening along the Barents Sea margin and its adjacent deformation.
• Gac, Sebastien; Indrevær, Kjetil; Gabrielsen, Roy Helge & Faleide, Jan Inge (2017). A model of the tectonic evolution of the Loppa High from Late Paleozoic to present-day.
• Hartz, Ebbe Hvidegård; Medvedev, Sergei; Schmid, Daniel Walter; Faleide, Jan Inge; Skeie, JE & Iyer, Karthik Herman (2017). Fire and Ice: Application of geodynamic thinking into petroleum system models.
• Indrevær, Kjetil; Gabrielsen, Roy Helge; Bugge, Aina Juell & Faleide, Jan Inge (2017). Latest Permian/earliest Triassic folds & thrusts on the Loppa High..
• Indrevær, Kjetil; Gabrielsen, Roy Helge; Gac, Sebastien & Faleide, Jan Inge (2017). Is there a tectonic signal in the development of the late Palaeozoic bioherms on the Loppa High?.
• Indrevær, Kjetil; Gac, Sebastien; Gabrielsen, Roy Helge & Faleide, Jan Inge (2017). Can metamorphic phase changes in the lower crust help explain the repeated uplift and subsidence of the Loppa High area through time?.
• Koehl, Jean-Baptiste; Bergh, Steffen G; Henningsen, Tormod & Faleide, Jan Inge (2017). Mid/late Devonian-Carboniferous collapse basins along the SW Barents Sea margin.
• Koehl, Jean-Baptiste; Kvanli, Tor-Einar; Rowan, Mark G. & Faleide, Jan Inge (2017). Late Carboniferous salt tectonics in the southwesternmost Nordkapp basin.
• Medvedev, Sergei; Hartz, Ebbe Hvidegård & Faleide, Jan Inge (2017). Vertical displacements of circum-Arctic lithosphere caused by glacial erosion.
• Shulgin, Alexey A; Aarseth, Iselin; Faleide, Jan Inge; Mjelde, Rolf & Huismans, Ritske (2017). The Western Barents Sea: where is the Caledonian Deformation Front?.
• Shulgin, Alexey A; Mjelde, Rolf & Faleide, Jan Inge (2017). Crustal structure of the South Barents Sea..
• Yenwongfai, Honore Dzekamelive; Mondol, Nazmul Haque; Faleide, Jan Inge & Lecomte, Isabelle (2017). Petrofacies characterization using prestack inversion and neural networks within the Snadd Formation of the Goliat Field, SW Barents Sea. Vis sammendrag

  The studied Goliat Field is the first oil field to be in production in the Norwegian sector of the Barents Sea despite an exploration history spanning over three decades. The reserves within Triassic Snadd Formation were not included in PDO (Plan for Development and Operations). This was due to poorer reservoir properties compared to the Realgrunnen Subgroup and the Kobbe Formation which together constitute the primary reservoir target in the Goliat Field. The field has an expected life time of 15 years. However, this life time can potentially be extended by applying quantitative seismic reservoir characterization techniques within more challenging minor reservoir intervals like the Snadd formation. Fluid discrimination by geophysical technique in uplifted Barents Sea areas has additional challenges as a result of a reduction in the seismic fluid sensitivity associated with rock stiffening (overconsolidation) due to prior deeper burial and quartz cementation. A multidisciplinary approach involving geology, rock physics, and geophysics has been used for petrofacies characterization from long offset prestack angle gathers and petrophysical well logs. A rock physics feasibility and AVA forward modelling reveal the sensitivity of the defined petrofacies classes to different elastic properties. The optimum prestack inversion method is subsequently selected based on the rock physics feasibility. The output from the inversion is used to derive the PEIL (Pseudo-Elastic Impedance), PI (Poisson Impedance), and LMR (Lambda-Mhu-Rho) attributes. These derived prestack attributes are then combined with poststack trace attributes in a neural network analysis. Neural networks utilize the non-linear relationships between the parameters to further optimize the inverted result and to predict the effective porosity, gamma ray, and resistivity log responses. Finally probability density functions (PDFs) extracted from the best well log training dataset are applied to a composite seismic attribute volume from which probability estimates of the classified petrofacies are obtained. Geological interpretations are then inferred based on the seismic geomorphological character observed from the different attributes. Probability maps obtained from this integrated approach has the potential to guide petrophysical reservoir modelling workflows and optimization of reservoir drainage strategies.

• Yenwongfai, Honore Dzekamelive; Mondol, Nazmul Haque; Lecomte, Isabelle & Faleide, Jan Inge (2017). Quantitative Seismic interpretation strategies for petrofacies discrimination within the Triassic: A Goliat Case Study.
• Yenwongfai, Honore Dzekamelive; Mondol, Nazmul Haque; Lecomte, Isabelle; Faleide, Jan Inge & Leutscher, J (2017). Integrating prestack inversion, machine learning, and forward seismic modelling for petrofacies characterization: A Barents Sea case study.
• Aarseth, Iselin; Mjelde, Rolf; Breivik, Asbjørn Johan; Huismans, Ritske & Faleide, Jan Inge (2016). Barents Sea Paleozoic basement and basin configurations: Crustal structure from deep seismic and potential field data.
• Aarseth, Iselin; Mjelde, Rolf; Breivik, Asbjørn Johan; Huismans, Ritske & Faleide, Jan Inge (2016). Barents Sea Paleozoic basement and basin configurations: Crustal structure from deep seismic and potential field data.
• Aarseth, Iselin; Mjelde, Rolf; Breivik, Asbjørn Johan; Minakov, Alexander; Huismans, Ritske & Faleide, Jan Inge (2016). Barents Sea Crustal and Upper Mantle Structure from Deep Seismic and Potential Field Data.
• Bauck, Marit S.; Faleide, Jan Inge & Fossen, Haakon (2016). Offshore basement morphology and structures in the Northern North Sea.
• Faleide, Jan Inge; Planke, Sverre; Abdelmalak, Mohamed Mansour; Zastrozhnov, Dmitrii; Wong, P.W.; Shephard, Grace; Indrevær, Kjetil; Tsikalas, Filippos; Gabrielsen, Roy Helge; Gernigon, Laurent; Blaich, Olav A. & Myklebust, Reidun (2016). Basin architecture and evolution at NE Atlantic conjugate margins.
• Gabrielsen, Roy Helge; Braathen, Alvar; Faleide, Jan Inge; Indrevær, Kjetil & Aamodt, L (2016). The Feda‐Lista‐Bredtflå fault system; a major lineament crossing the offshore‐onshore transition.
• Gabrielsen, Roy Helge; Sokoutis, Dimitrios; Willingshofer, Ernst & Faleide, Jan Inge (2016). Experiments on horizontal and vertical fault linkage and its relevance for the Hoop Fault Complex.
• Gac, Sebastien & Faleide, Jan Inge (2016). Contractional structures in the Barents Sea: Insights from numerical modeling.
• Gaina, Carmen; Lebedeva-Ivanova, Nina; Minakov, Alexander; Nikishin, Anatoly; Faleide, Jan Inge; Schweitzer, Johannes; Struijk, Maartje; Tesauro, Magdala; Celli, Nicolas; Lebedev, Sergei & Jakovlev, Andrey (2016). 4D Arctic: Structure and Evolution of Arctic Crust and Mantle Based on Multi-Scale Geophysical Studies – results from an international, multi-disciplinary project.
• Indrevær, Kjetil; Faleide, Jan Inge; Sæbø Serck, Christopher & Gabrielsen, Roy Helge (2016). Paleohighs of the western Barents Sea and their onshore correlation.
• Klitzke, Peter; Scheck-Wenderoth, Magdalena; Gac, Sebastien; Faleide, Jan Inge; Minakov, Alexander & Sippel, Judith (2016). Structure and Temperature Configuration of the Barents Sea and Kara Sea region and implications for its lithospheric strength.
• Koehl, Jean-Baptiste; Bergh, Steffen G; Henningsen, Tormod; Forthun, Tore; Faleide, Jan Inge; Kvanli, Tor-Einar & Rowan, Mark G. (2016). Prospectivity of the Late Devonian-early Carboniferous rift, SW Barents Sea.
• Koehl, Jean-Baptiste; Bergh, Steffen G; Indrevær, Kjetil; Faleide, Jan Inge; Henningsen, Tormod; Lea, Halldis & Bergø, Espen (2016). Nearshore half-grabens as analogues for offshore rift-basins on the Finnmark Platform.
• Koehl, Jean-Baptiste; Bergh, Steffen G; Indrevær, Kjetil; Faleide, Jan Inge; Henningsen, Tormod; Lea, Halldis & Bergø, Espen (2016). Nearshore half-grabens as analogues for offshore, early Carboniferous rift-basins.
• Koehl, Jean-Baptiste; Bergh, Steffen G; Indrevær, Kjetil; Lea, Halldis; Bergø, Espen; Henningsen, Tormod; Forthun, Tore & Faleide, Jan Inge (2016). Nearshore half-grabens as analogues for offshore, early Carboniferous rift-basins along the SW Barents Sea Margin.
• Minakov, Alexander; Buiter, Susanne; Faleide, Jan Inge; Gaina, Carmen; Mjelde, Rolf; Lebedeva-Ivanova, Nina; Sand, Gunnar; Schweitzer, Johannes & Shulgin, Alexey A (2016). GoNorth - A new initiative for High Arctic research.
• Minakov, Alexander; Gaina, Carmen & Faleide, Jan Inge (2016). The Origin of the Rodrigues Depth Anomaly: New constraints from integrated gravity inversion.
• Minakov, Alexander; Yarushina, Viktoriya M. & Faleide, Jan Inge (2016). A mechanical model for giant radiating dike swarms.
• Mjelde, Rolf; Breivik, Asbjørn Johan; Minakov, Alexander; Huismans, Ritske & Faleide, Jan Inge (2016). Barents Sea Crustal and Upper Mantle Structure from Deep Seismic and Potential Field Data.
• Mjelde, Rolf; Faleide, Jan Inge; Thybo, Hans; Flueh, Ernst R. & Murai, Yoshio (2016). Lower crustal high-velocity bodies along North Atlantic passive margins, and their link to Caledonian suture zone eclogites and Early Cenozoic magmatism.
• Planke, Sverre; Polteau, S; Senger, Kim; Svensen, Henrik; Faleide, Jan Inge; Myklebust, Reidun & Tegner, Christian (2016). HALIP Intrusive and Extrusive Complexes of Svalbard and the Barents Sea.
• Planke, Sverre; Zuchuat, Valentin; Svensen, Henrik; Hammer, Øyvind; Braathen, Alvar; Silkoset, Petter; Midtkandal, Ivar; Nagy, Jenø; Kürschner, Wolfram Michael; van Soelen, Elsbeth Ester; Faleide, Jan Inge; Augland, Lars Eivind; Jones, Morgan Thomas; Jerram, Dougal Alexander; Franeck, Franziska; Sassier, Caroline; Domeier, Mathew; Twitchett, Richard J.; Jochmann, Malte; Zayoncheck, Andrey; Haflidason, Haflidi; Buckley, Simon John; Kurz, Tobias Herbert; Olaussen, Snorre; Mørk, Atle; Løvø, Vigdis & Lie, Jan Erik (2016). Coring and High-Resolution Imaging of the Permian-Triassic Boundary in Deltadalen, Svalbard.
• Shulgin, Alexey A; Aaseth, Iselin; Faleide, Jan Inge; Mjelde, Rolf & Huismans, Ritske (2016). Locating Caledonian Deformation Front in the Western Barents Sea..
• Yenwongfai, Honore Dzekamelive; Mondol, Nazmul Haque; Faleide, Jan Inge & Lecomte, Isabelle (2016). Prestack Simultaneous Inversion to Predict Lithology in the Realgrunnen Subgroup of the Goliat Field, SW Bareants Sea.
• Yenwongfai, Honore Dzekamelive; Mondol, Nazmul Haque; Faleide, Jan Inge & Lecomte, Isabelle (2016). Quantitative seismic reservoir characterization within the Realgrunnen Subgroup and the Havert Formation in the Goliat Field, SW Barents Sea.
• Abdelmalak, Mohamed Mansour; Planke, Sverre; Andersen, Torgeir Bjørge; Faleide, Jan Inge; Corfu, Fernando; Tegner, Christian & Myklebust, Reidun (2015). The Continent-Ocean Transition in the Mid-Norwegian Margin: Insight From Seismic Data and the Onshore Caledonian Analogue in the Seve Nappe Complex. Vis sammendrag

  The continental breakup and initial seafloor spreading in the NE Atlantic was accompanied by widespread intrusive and extrusive magmatism and the formation of conjugate volcanic passive margins. These margins are characterized by the presence of seaward dipping reflectors (SDR), an intense network of mafic sheet intrusions of the continental crust and adjacent sedimentary basins and a high-velocity lower crustal body. Nevertheless many issues remain unclear regarding the structure of volcanic passive margins; in particular the transitional crust located beneath the SDR.New and reprocessed seismic reflection data on the Mid-Norwegian margin allow a better sub-basalt imaging of the transitional crust located beneath the SDR. Different high-amplitude reflections with abrupt termination and saucer shaped geometries are identified and interpreted as sill intrusions. Other near vertical and inclined reflections are interpreted as dykes or dyke swarms. We have mapped the extent of the dyke reflections along the volcanic margin. The mapping suggests that the dykes represent the main feeder system for the SDR. The identification of saucer shaped sills implies the presence of sediments in the transitional zone beneath the volcanic sequences. Onshore exposures of Precambrian basement of the eroded volcanic margin in East Greenland show that, locally, the transitional crust is highly intruded by dykes and intrusive complexes with an increasing intensity of the plumbing and dilatation of the continental crust ocean-ward. Another well exposed analogue for a continent-ocean transitional crust is located within the Seve Nappe Complex (SNC) of the Scandinavian Caledonides. The best-preserved parts of SNC in the Pårte, Sarek, Kebnekaise, Abisko, and Indre Troms mountains are composed mainly of meta-sandstones and shales (now hornfelses) truncated typically by mafic dykes. At Sarek and Pårte, the dykes intrude the sedimentary rocks of the Favoritkammen Group, with a dyke density up to 70-80%. This complex was photographed in a regional helicopter survey and sampled for the study of the different dyke generations, their geochemistry and ages in 2014. Extending for at least 800 km within the SNC, the mafic igneous rocks most probably belonged to a volcanic system with the size of a large igneous province (LIP). This volcanic margin is suggested to have formed along the Caledonian margin of Baltica or within hyperextended continental slivers outboard of Baltica during the breakup of Rodinia. The intensity of the pre-Caledonian LIP-magmatism is comparable to that of the NE Atlantic volcanic margins. The SNC-LIP is considered to represent a potential onshore analogue to the deeper level of the Mid-Norwegian margin transitional crust, and permits direct observation, sampling and better understanding of deeper levels of magma-rich margins.

• Alexandropoulou, Nikolitsa; Andreassen, Karin; Winsborrow, Monica; Faleide, Jan Inge & Nystuen, Johan Petter (2015). Late Cenozoic evolution of the western Barents Sea- Svalbard continental margin. Case study: Upper Bjørnøya Fan, western Barents Sea margin.
• Anell, Ingrid Margareta; Braathen, Alvar & Faleide, Jan Inge (2015). Hidden below – Paleo-highs and deep structural influence on sedimentation on the Northern Barents Shelf.
• Anell, Ingrid Margareta; Braathen, Alvar & Faleide, Jan Inge (2015). Shifting stress regimes and deep structural control on Triassic sedimentation.
• Anell, Ingrid Margareta; Braathen, Alvar; Faleide, Jan Inge & Olaussen, Snorre (2015). Bridging the gaps of our understanding of the Triassic of the northern Barents Shelf.
• Barrio, Maria; Stewart, Heather A.; Akhurst, M.; Aagaard, Per; Alcalde, J.; Bauer, Andreas; Bradwell, T.; Cavanagh, A.; Evans, D; Faleide, Jan Inge; Furre, Anne-Kari; Gent, C.; Haflidason, Haflidi; Haszeldine, S.; Hjelstuen, Berit Oline Blihovde; Johnson, G.; Mondol, Nazmul Haque; Querendez, Etor; Ringrose, P.S.; Sejrup, Hans Petter; Stewart, M.; Uriansrud, F.; Wilkinson, M; Mørk, Atle; Primio, R. de & Mørkved, Pål Tore (2015). Norway and UK cross-boundary initiative towards a limate motivated drilling operation in the North Sea.
• Dahlberg, M.E.; Faleide, Jan Inge; Midtkandal, Ivar; Nystuen, Johan Petter & Blaich, Olav Antonio (2015). Upper Jurassic to Lower Cretaceous structural and sequence stratigraphical evolution of the Fingerdjupet Subbasin, in a regional context.
• Ershova, Victoria; Anfinson, Owen; Prokopiev, Andrey; Khudoley, Andrei K.; Stockli, Daniel; Faleide, Jan Inge; Gaina, Carmen & Malyshev, Nikolay (2015). First (U–Th)/He Ages of Detrital Zircons From Paleozoic Strata of the Severnaya Zemlya Archipelago (Russian High Arctic).
• Faleide, Jan Inge (2015). Linking Barents Sea sedimentary basins to regional tectonics and deep structure.
• Faleide, Jan Inge (2015). Recent advances in understanding the tectonic setting of the Triassic Barents Shelf.

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