Jean-Baptiste Philippe Koehl

• Janocha, Julian; Wesenlund, Fredrik; Thießen, Olaf; Grundvåg, Sten-Andreas; Koehl, Jean-Baptiste Philippe & Johannessen, Erik (2024). Depositional environments and source rock potential of some Upper Palaeozoic (Devonian) coals on Bjørnøya, Western Barents shelf. Marine and Petroleum Geology. ISSN 0264-8172. 163. doi: 10.1016/j.marpetgeo.2024.106768. Full text in Research Archive
• Koehl, Jean-Baptiste P.; Christophersen, Gard; Collombin, Maxime; Taule, Christoffer; Stokmo, Eirik M. B. & Allaart, Lis (2023). Devonian-Mississippian faulting controlled by WNW-ESE-striking structural grain in Proterozoic basement rocks in Billefjorden, central Spitsbergen. Geologica Acta. ISSN 1695-6133. 21. doi: 10.1344/GeologicaActa2023.21.7.
• Koehl, Jean-Baptiste P.; Collombin, Maxime & Taule, Christoffer (2023). Middle Pennsylvanian megabreccia adjacent to the Odellfjellet Fault in Billefjorden, central Spitsbergen. Norwegian Journal of Geology. ISSN 2387-5844. 103(1), p. 1–24. doi: 10.17850/njg103-1-4. Full text in Research Archive
• Koehl, Jean-Baptiste P.; Marshall, John E. A. & Lopes, Gilda Maria Rodrigues (2022). The timing of the Svalbardian Orogeny in Svalbard: A review. Solid Earth (SE). ISSN 1869-9510. 13(8), p. 1353–1370. doi: 10.5194/se-13-1353-2022. Full text in Research Archive
• Koehl, Jean-Baptiste P.; Bergh, Steffen Gunnar & Sylvester, Arthur G. (2022). Tectonic evolution of the Indio Hills segment of the San Andreas fault in southern California, southwestern USA. Solid Earth (SE). ISSN 1869-9510. 13(8), p. 1169–1190. doi: 10.5194/se-13-1169-2022. Full text in Research Archive Show summary

  Transpressional uplift domains of inverted Pliocene–Pleistocene basin fill along the San Andreas fault zone in Coachella Valley, southern California (USA), are characterized by fault linkage and segmentation and deformation partitioning. The Indio Hills wedge-shaped uplift block is located in between two boundary fault strands, the Indio Hills fault to the northeast and the main San Andreas fault to the southwest, which merge to the southeast. Uplift commenced about or later than 0.76 million years ago and involved progressive fold and faulting stages caused by a change from distributed strain to partly partitioned right-slip and reverse/thrust displacement on the bounding faults when approaching the fault junction. Major fold structures in the study area include oblique, right-stepping, partly overturned en echelon macro-folds that tighten and bend into parallelism with the Indio Hills fault to the east and become more open towards the main San Andreas fault to the west, indicating an early and close relationship of the macro-folds with the Indio Hills fault and a late initiation of the main San Andreas fault. Sets of strike-slip to reverse step-over and right- and left-lateral cross faults and conjugate kink bands affect the entire uplifted area, and locally offset the en echelon macro-folds. Comparison with the Mecca Hills and Durmid Hills uplifts farther southeast along strike in Coachella Valley reveals notable similarities, but also differences in fault architectures, spatial and temporal evolution, and deformation mechanisms. The present work contributes to better understand the structure and tectonic history of a major fault system along a transform plate boundary

• Koehl, Jean-Baptiste Philippe; Magee, Craig & Anell, Ingrid (2022). Impact of Timanian thrust systems on the late Neoproterozoic–Phanerozoic tectonic evolution of the Barents Sea and Svalbard. Solid Earth (SE). ISSN 1869-9510. 13(1), p. 85–115. doi: 10.5194/se-13-85-2022. Full text in Research Archive Show summary

  The Svalbard Archipelago consists of three basement terranes that record a complex Neoproterozoic– Phanerozoic tectonic history, including four contractional events (Grenvillian, Caledonian, Ellesmerian, and Eurekan) and two episodes of collapse- to rift-related extension (Devonian–Carboniferous and late Cenozoic). Previous studies suggest that these three terranes likely accreted during the early to mid-Paleozoic Caledonian and Ellesmerian orogenies. Yet recent geochronological analyses show that the northwestern and southwestern terranes of Svalbard both record an episode of amphibolite (–eclogite) facies metamorphism in the latest Neoproterozoic, which may relate to the 650–550 Ma Timanian Orogeny identified in northwestern Russia, northern Norway, and the Russian Barents Sea. However, discrete Timanian structures have yet to be identified in Svalbard and the Norwegian Barents Sea. Through analysis of seismic reflection, as well as regional gravimetric and magnetic data, this study demonstrates the presence of continuous thrust systems that are several kilometers thick, NNE-dipping, deeply buried, and extend thousands of kilometers from northwestern Russia to northeastern Norway, the northern Norwegian Barents Sea, and the Svalbard Archipelago. The consistency in orientation and geometry, as well as apparent linkage between these thrust systems and those recognized as part of the Timanian Orogeny in northwestern Russia and Novaya Zemlya, suggests that the mapped structures are likely Timanian. If correct, these findings would imply that Svalbard’s three basement terranes and the Barents Sea were accreted onto northern Norway during the Timanian Orogeny and should hence be attached to Baltica and northwestern Russia in future Neoproterozoic–early Paleozoic plate tectonics reconstructions. In the Phanerozoic, the study suggests that the interpreted Timanian thrust systems represent major preexisting zones of weakness that were reactivated, folded, and overprinted by (i.e., controlled the formation of new) brittle faults during later tectonic events. These faults are still active at present and can be linked to folding and offset of the seafloor

• Koehl, Jean-Baptiste P. & Allaart, Lis (2021). The Billefjorden Fault Zone north of Spitsbergen: a major terrane boundary? Polar Research. ISSN 0800-0395. 40. doi: 10.33265/polar.v40.7668. Full text in Research Archive Show summary

  The Billefjorden Fault Zone is a major terrane boundary in the Norwegian Arctic. The fault separates basement rocks of Svalbard’s north-eastern and north-western terranes that recorded discrete Precambrian tectonothermal histories and were accreted, intensely deformed and metamorphosed during the Caledonian Orogeny. Although the fault represents a major, crustal-scale tectonic boundary, its north-ward extent is not well constrained. The present short contribution addresses this issue and presents new seismic mapping of structures and rock units north of Wijdefjorden, where the Billefjorden Fault Zone may continue. This study shows that there is no evidence for major faulting of the top-basement reflection, and therefore, that the Billefjorden Fault Zone may die out within Wijdefjorden–Austfjorden, step ≥ 20 km laterally, or be invisible on the presented seismic data. Seismic data also suggest that Caledonian basement rocks in Ny-Friesland (north-eastern terrane) are not significantly different from basement rocks below the Devonian Graben in Andrée Land (north-western terrane). Potential implica-tions include the absence of a major terrane boundary in northern Spitsbergen

• Koehl, Jean-Baptiste P. (2021). Early Cenozoic Eurekan strain partitioning and decoupling in central Spitsbergen, Svalbard. Solid Earth (SE). ISSN 1869-9510. 12(5), p. 1025–1049. doi: 10.5194/se-12-1025-2021. Full text in Research Archive Show summary

  The present study of field, petrological, exploration well, and seismic data describes backward-dipping duplexes comprised of phyllitic coal and bedding-parallel décollements and thrusts localized along lithological transitions in tectonically thickened Lower Devonian to lowermost Upper Devonian; uppermost Devonian–Mississippian; and uppermost Pennsylvanian–lowermost Permian sedimentary strata of the Wood Bay and/or Wijde Bay and/or Grey Hoek formations; of the Billefjorden Group; and of the Wordiekammen Formation, respectively. The study shows that these structures partially decoupled uppermost Devonian–Permian sedimentary rocks of the Billefjorden and Gipsdalen groups from Lower Devonian to lowermost Upper Devonian rocks of the Andrée Land Group and Mimerdalen Subgroup during early Cenozoic Eurekan deformation in central Spitsbergen. Eurekan strain decoupling along these structures explains differential deformation between Lower Devonian to lowermost Upper Devonian rocks of the Andrée Land Group and/or Mimerdalen Subgroup and overlying uppermost Devonian–Permian sedimentary strata of the Billefjorden and Gipsdalen groups in central–northern Spitsbergen without requiring an episode of (Ellesmerian) contraction in the Late Devonian. Potential formation mechanisms for bedding-parallel décollements and thrusts include shortcut faulting and/or formation as a roof décollement in a fault-bend hanging wall (or ramp) anticline, as an imbricate fan, as an antiformal thrust stack, and/or as fault-propagation folds over reactivated or overprinted basement-seated faults. The interpretation of seismic data in Reindalspasset indicates that Devonian sedimentary rocks of the Andrée Land Group and Mimerdalen Subgroup might be preserved east of the Billefjorden Fault Zone, suggesting that the Billefjorden Fault Zone did not accommodate reverse movement in the Late Devonian. Hence, the thrusting of Proterozoic basement rocks over Lower Devonian sedimentary rocks along the Balliolbreen Fault and fold structures within strata of the Andrée Land Group and Mimerdalen Subgroup in central Spitsbergen may be explained by a combination of down-east Carboniferous normal faulting with associated footwall rotation and exhumation, and subsequent top-west early Cenozoic Eurekan thrusting along the Billefjorden Fault Zone. Finally, the study shows that major east-dipping faults, like the Billefjorden Fault Zone, may consist of several discrete, unconnected (soft-linked and/or stepping) or, most probably, offset fault segments that were reactivated or overprinted to varying degrees during Eurekan deformation due to strain partitioning and/or decoupling along sub-orthogonal NNE-dipping reverse faults.

• Koehl, Jean-Baptiste P.; Bergh, Steffen G; Osmundsen, Per Terje; Redfield, Thomas Fitzmaurice; Indrevær, Kjetil & Lea, Halldis [Show all 7 contributors for this article] (2019). Late devonian–carboniferous faulting and controlling structures and fabrics in NW finnmark. Norwegian Journal of Geology. ISSN 2387-5844. 99(3), p. 1–39. doi: 10.17850/njg99-3-5. Full text in Research Archive Show summary

  In the SW Barents Sea, Devonian–Carboniferous collapse led to the formation of major basins and faults, e.g., the Hammerfest Basin bounded by the Troms–Finnmark Fault Complex, and rhomboid- to sigma-shaped (half-)grabens on the Finnmark Platform. High-resolution aeromagnetic and bathymetry data from the shallow shelf show that analogue fault systems are present in coastal and onshore areas of NW Finnmark. We provide new documentation for the Langfjorden–Vargsundet fault, a post-Caledonian, NW-dipping, zigzag-shaped, margin-parallel fault complex consisting of alternating linear to sub-linear, NNE–SSW- and ENE–WSW-striking, down-NW normal fault segments. This fault formed as an extensional splay-fault of inverted, Caledonian, brittle–ductile thrusts, e.g, the Talvik and Kvenklubben faults, which the fault eventually truncated and offset. In northern Finnmark, the Langfjorden–Vargsundet fault is offset laterally by up to 28 km by a system of WNW–ESE-trending faults notably including potential segments and splays of the Trollfjorden–Komagelva Fault Zone, a reactivated Neoproterozoic, margin-orthogonal transfer fault, separating NW Finnmark from the eastern Finnmark Platform. This fault system likely dies out westwards, and portions of the system’s process zone may crop out on the island of Magerøya. Similarly, the WNW–ESE- to ENE–WSW-striking Akkarfjord fault offsets the Langfjorden–Vargsundet fault by c. 2 km left-laterally. This fault may have formed as a conjugate to the Trollfjorden–Komagelva Fault Zone in Neoproterozoic (Timanian?) times. Steeply NW-plunging, upright and gently NE-plunging, inclined folds in Archaean–Palaeoproterozoic basement rocks and margin-parallel Caledonian thrusts may have controlled the formation and geometry of post-Caledonian faults. A Late Devonian–Carboniferous age for the Langfjorden–Vargsundet fault is supported by geochronological dating of onshore dykes and fault gouge, and by syn-tectonic sedimentary wedges along the offshore extension of the Langfjorden–Vargsundet fault. Mini-basins bounded by the Langfjorden– Vargsundet fault on the Finnmark Platform and on the shallow shelf, e.g., the Ryggefjorden trough, may represent analogues to deep, offshore, Devonian–Carboniferous basins, like the Nordkapp Basin, prior to the deposition of late Palaeozoic evaporites.

• Koehl, Jean-Baptiste P. & Munoz Barrera, Jhon Meyer (2018). From widespread Mississippian to localized Pennsylvanian extension in central Spitsbergen, Svalbard. Solid Earth (SE). ISSN 1869-9510. 9, p. 1535–1558. doi: 10.5194/se-9-1535-2018. Full text in Research Archive
• Koehl, Jean-Baptiste P.; Bergh, Steffen G & Wemmer, Klaus (2018). Neoproterozoic and post-Caledonian exhumation and shallow faulting in NW Finnmark from K–Ar dating and p/T analysis of fault rocks. Solid Earth (SE). ISSN 1869-9510. 9(4), p. 923–951. doi: 10.5194/se-9-923-2018. Full text in Research Archive
• 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 (SE). ISSN 1869-9510. 9(2), p. 341–372. doi: 10.5194/se-9-341-2018. Full text in Research Archive

View all works in Cristin

• Distlebrink, Amber; Shephard, Grace; Koehl, Jean-Baptiste P.; Bergh, Steffen Gunnar & Beniest, Anouk (2024). Insights into the tectonic evolution of the northern Norwegian passive margin: Integrating field observations and plate modeling over 200 million years.
• Cooke, Frances Ann; Plaza Faverola, Andreia Aletia; Bünz, Stefan; Amrouch, Khalid; King, Rosalind & Koehl, Jean-Baptiste P. (2023). High resolution fault analysis of the Vestnesa Ridge: a highly complex deep water fluid flow system in the east Fram Strait.
• Plaza-Faverola, Andreia; Cooke, Frances Ann; Vachon, Remi Elie Celestin; Waghorn, Kate Alyse; Koehl, Jean-Baptiste P. & Beaussier, Stefan Jon [Show all 7 contributors for this article] (2022). Coupling between rifted oceanic crust and sedimentary deformation in the Fram Strait: implications for seafloor seepage and gas hydrates dynamics. Show summary

  The continent–ocean transition along the passive margin off western Svalbard is, in places, only a few kilometers away from the formerly glaciated continental shelf. Strong bottom currents in the Fram Strait have led to the deposition of several kilometers thick sedimentary ridges that extend from continental to oceanic crust all the way onto the flanks of the oblique-spreading Molloy and Knipovich mid-ocean ridges. The sedimentary ridges represent large contourite drifts and are characterized by faults that extend to the present-day seafloor. Generally, it is argued that gravitational forcing or flexure due to fast sedimentation and/or erosion is the main force leading to deformation of Quaternary sediments, and that horizontal forcing is negligible. However, high resolution 2D and 3D seismic data along the western Svalbard margin reveal that sedimentary faults commonly propagate from the termination of rift-related faults in the oceanic crust, and are not always favorably oriented to accommodate gravitational collapse. We suggest that coupling between the slow-spreading oceanic crust and the sedimentary cover results in a transfer of stress and strain that influences near-surface sedimentary deformation. Deep crustal fluids are also transferred into the Quaternary succession utilizing faults as migration pathways. Such faults sustain shallow gas accumulations, wide-spread gas hydrate formation and cold seeps. Simultaneously, glacial isostatic rebound leads to additional lithospheric deformation and also exerts a control on fault kinematics and gas seepage. We discuss seismic examples of deep marine seepage systems and the potential implications of coupling between lithospheric deformation and sedimentation on the spatiotemporal evolution of seafloor seepage at Arctic margins

• Koehl, Jean-Baptiste P.; Arene, Charlotte; Anderson, Addison; Aires, André; Xhelo, Gerta & Rosenthal, Alex [Show all 10 contributors for this article] (2021). Can we harness the power of lava? [Internet]. https://ed.ted.com/lessons/iceland-s-superpowered-undergroun.
• Koehl, Jean-Baptiste Philippe (2021). Seismic study of major faults in Svalbard and the Barents Sea.
• Koehl, Jean-Baptiste P. (2021). Impact of Timanian thrusts on the Phanerozoic tectonic history of Svalbard.
• Koehl, Jean-Baptiste P.; Cooke, Frances Ann & Plaza-Faverola, Andreia (2021). Formation of a transform-parallel oceanic core complex along an inherited Timanian thrust, and impact on gas seepage in the Fram Strait.
• Koehl, Jean-Baptiste P. (2021). Impact of Timanian thrusts on Arctic Tectonics (ArcTec).
• Koehl, Jean-Baptiste P. (2021). Impact of Timanian thrusts on Arctic tectonics.
• Koehl, Jean-Baptiste P. (2020). Tectonic connections between the Norwegian Arctic and Antarctic.
• Koehl, Jean-Baptiste P. (2020). Impact of Timanian thrusts on the Phanerozoic tectonic history of Svalbard.
• Koehl, Jean-Baptiste P. (2020). Late Neoproterozoic–Cenozoic tectonic evolution of Svalbard.
• Koehl, Jean-Baptiste P. (2019). Forseglingsanalyse og risiko for gass og olje lekkasje.
• Koehl, Jean-Baptiste P. (2019). WNW-ESE-striking Timanian faults in Svalbard.
• Koehl, Jean-Baptiste P. (2019). Påvirkning av Timanianske forkastninger på Svalbards Fanerozoiske tektoniske historie.
• Koehl, Jean-Baptiste P. (2019). WNW-ESE-striking Timanian faults in Svalbard. Full text in Research Archive
• Koehl, Jean-Baptiste P.; Contini, Mateus; Grosso, Felipe; Anderson, Addison; Faria, Natália & Pereira, Vini [Show all 15 contributors for this article] (2019). Why are earthquakes so hard to predict? [Internet]. https://ed.ted.com/lessons/why-are-earthquakes-so-hard-to-pr. Show summary

  In 132 CE, Zhang Heng presented his latest invention: a large vase he claimed could tell them whenever an earthquake occurred for hundreds of miles. Today, we no longer rely on pots as warning systems, but earthquakes still offer challenges to those trying to track them. Why are earthquakes so hard to anticipate, and how could we get better at predicting them?

• Koehl, Jean-Baptiste P. (2019). Mississippian rocks and WNW–ESE-striking faults in Spitsbergen. Full text in Research Archive
• Koehl, Jean-Baptiste P. (2019). Impact of Timanian thrusts on the Phanerozoic tectonic history of Svalbard. Full text in Research Archive Show summary

  Despite more than a century of investigation, the relationship between basement rocks throughout the Svalbard Archipelago is still a mystery. Though these rocks display similar geochronological ages, they show significantly different metamorphic grades and structures. Thus far, Svalbard was believed to be composed of three terranes of rocks formed hundreds–thousands of kilometers apart and accreted in the mid-Paleozoic. New evidence from seismic, gravimetric, aeromagnetic, seismological, bathymetric, and field data show that these terranes might have already been accreted in the late Neoproterozoic. Notably, the data show that at least three–four, crustal-scale, WNW–ESE-striking thrust systems crosscut Spitsbergen and merge with Timanian thrusts in the northern Barents Sea and northwestern Russia. These thrusts were reactivated as sinistral-reverse oblique-slip faults and partly folded during the Caledonian and Eurekan orogenies, and reactivated as sinistral-normal faults during Devonian–Mississippian extensional collapse, thus offsetting N–S-trending Caledonian grain and post-Caledonian basins. The presence of these faults explains the juxtaposition of basement rocks of seemingly different origin throughout the Svalbard Archipelago, the distribution of Mississippian rocks and Early Cretaceous intrusions along a WNW–ESE-trending axis in central Spitsbergen, the west vergence of Cenozoic folds in Devonian rocks in central–northern Spitsbergen (previously ascribed to Late Devonian Ellesmerian contraction), the arch shape of the Cenozoic West Spitsbergen Fold-and-Thrust Belt in Brøggerhalvøya, and the strike and location of transform faults west of Spitsbergen. Further implications of this work might be that the tectonic plates constituting present-day Norwegian Arctic regions (Laurentia and Baltica) have retained their current geometry and alignment for the past 600 Ma, that the Timanian Orogeny and associated WNW–ESE-striking faults extend from northwestern Russia to Svalbard, and, possibly, to Greenland and Arctic Canada, and that the transport of Svalbard from next to Greenland in the early Cenozoic to its present position (ca. 400 km southwards) might have been accommodated exclusively by break-up and displacement along transform faults (strike-slip movements), and by top-SSW thrusting and folding (horizontal shortening) along inherited Timanian grain instead of dextral strike-slip movement along the De Geer Zone.

• Koehl, Jean-Baptiste P. (2018). Devonian core complex exhumation and Cenozoic decollements as alternatives to the Ellesmerian Orogeny. Full text in Research Archive
• Koehl, Jean-Baptiste P.; Bergh, Steffen G; Henningsen, Tormod; Faleide, Jan Inge; Smyrak-Sikora, Aleksandra & Olaussen, Snorre [Show all 7 contributors for this article] (2018). Mid/Late Devonian-early Carboniferous collapse basins in the Barents Sea and Svalbard.
• Brönner, Marco; Gellein, Jomar; Henningsen, Tormod; Forthun, Tore; Grundvåg, Sten-Andreas & Johannessen, Erik [Show all 9 contributors for this article] (2017). Insights in the basement characteristic and structural settings of Bjørnøya, derived from the first geophysical campaign on the island.
• Koehl, Jean-Baptiste (2017). Faults.
• 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.
• Koehl, Jean-Baptiste; Bergh, Steffen G; Indrevær, Kjetil; Faleide, Jan Inge; Henningsen, Tormod & Lea, Halldis [Show all 7 contributors for this article] (2016). Nearshore half-grabens as analogues for offshore rift-basins on the Finnmark Platform.
• Koehl, Jean-Baptiste (2016). The "wider" Late Devonian-early Carboniferous rift.
• Koehl, Jean-Baptiste; Bergh, Steffen G; Henningsen, Tormod; Forthun, Tore; Faleide, Jan Inge & Kvanli, Tor-Einar [Show all 7 contributors for this article] (2016). Prospectivity of the Late Devonian-early Carboniferous rift, SW Barents Sea.
• Koehl, Jean-Baptiste; Bergh, Steffen G; Indrevær, Kjetil; Lea, Halldis; Bergø, Espen & Henningsen, Tormod [Show all 8 contributors for this article] (2016). Nearshore half-grabens as analogues for offshore, early Carboniferous rift-basins along the SW Barents Sea Margin.
• Koehl, Jean-Baptiste; Tveranger, Jan; Osmundsen, Per Terje; Braathen, Alvar; Taule, Christopher & Collombin, Maxime (2016). Fault-growth deposit in a Carboniferous rift-basin: the Billefjorden Trough, Svalbard.
• Koehl, Jean-Baptiste; Bergh, Steffen G; Indrevær, Kjetil; Faleide, Jan Inge; Henningsen, Tormod & Lea, Halldis [Show all 7 contributors for this article] (2016). Nearshore half-grabens as analogues for offshore, early Carboniferous rift-basins.
• Koehl, Jean-Baptiste; Wemmer, Klaus & Bergh, Steffen G (2016). Shallow faulting and westwards migration of rifting from mid-Permian times in North Norway, evidence from K/Ar dating.
• Koehl, Jean-Baptiste; Bergh, Steffen G; Indrevær, Kjetil; Stunitz, Holger; Henningsen, Tormod & Ingebrigtsen, Arild (2015). Onshore-offshore fault correlation on the SW Barents Sea margin.
• Koehl, Jean-Baptiste & Bergh, Steffen G (2015). Onshore-offshore relationships on the SW Barents Sea Margin with emphasis on the Troms and Finnmark coastal areas: fault correlation, tectonic landscape and margin architecture.
• Koehl, Jean-Baptiste & Bergh, Steffen G (2015). Onshore-offshore relationships on the SW Barents Sea Margin with emphasis on the Troms and Finnmark coastal areas: Fault correlation, tectonic landscapes and margin architecture.
• Koehl, Jean-Baptiste & Bergh, Steffen G (2015). Onshore-offshore relationships on the SW Barents Sea Margin with emphasis on the Troms and Finnmark coastal areas: fault correlation, tectonic landscape and margin architecture.
• Koehl, Jean-Baptiste; Bergh, Steffen G; Indrevær, Kjetil & Henningsen, Tormod (2015). Onshore-offshore realtionships on the SW Barents Sea with emphasis on the Troms and Finnmark coastalareas: fault correlation, tectonic landscape and margin architecture.
• Koehl, Jean-Baptiste (2013). Late Paleozoic-Cenozoic fault correlation and characterization of fault rocks in western Troms, North Norway. Unpublished Master's Thesis.

View all works in Cristin