Scientific papers

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72. Mazzini, A., Svensen, H.H., Forsberg, C.F., Linge, H., Lauritzen, S-E., Haflidason, H., Hammer, Ø., Planke, S., and Tjelta, T.I. (2017) A Climatic Trigger for the Giant Troll Pockmark Field in the Northern North Sea. Earth and Planetary Science Letters, 464, 24-34.

71. Svensen, H.H.,  Torsvik, T.H., Callegaro, S., Augland, L., Heimdal, T.H., Jerram, D., Planke, S., and Pereira, E. (2017) Gondwana LIPs: Plate reconstructions, volcanic basins and sill volumes. In: Large Igneous Provinces from Gondwana and Adjacent Regions, Special Publication, Geological Society, London. In Press.

70. Stordal, F. Svensen, H.H.,  Aarnes, I., and Roscher, M. (2017) Global temperature response to century-scale degassing from the Siberian Traps Large Igneous Province. Palaeogeography, Palaeoclimatology, Palaeoecology, 471, 96-107.

69. Neumann, E-R., Svensen, H.H., Polozov, A.G., Hammer, Ø. (2017) Formation of Si-Al-Mg-Ca-rich zoned magnetite in an end-Permian phreatomagmatic pipe in the Tunguska Basin, East Siberia. Mineralium Deposita, In Press.

68. Hammer, Ø. and Svensen, H.H. (2017) Biostratigraphy and carbon and nitrogen geochemistry of the SPICE event in Cambrian low-grade metamorphic black shale, Southern Norway. Palaeogeography, Palaeoclimatology, Palaeoecology, 468, 216-227.

67. Fristad, K.E., Svensen, H.H., Polozov, A., and Planke, S. (2017) Formation and evolution of the endPermian Oktyabrsk volcanic crater in the Tunguska Basin, Eastern Siberia. Palaeogeography, Palaeoclimatology, Palaeoecology 468, pages 76–87.


66. Frieling, J., Svensen, H.H., Planke, S., Cramwinckel, M.J., Selnes, H., and Sjuijs, A. (2016) Thermogenic methane release as a cause for the long duration of the PETM. Proceedings of the National Academy of Sciences (PNAS), doi:10.1073/pnas.1603348113. Published 10th October. 

65. Jones, M.T., Eliassen, G.T., Shephard, G.E., Svensen, H.H., Jochmann, M., Friis, B., Augland, L.E., Jerram, D.A., and Planke, S. (2016) Provenance of bentonite layers in the Palaeocene strata of the Central Basin, Svalbard: implications for magmatism and rifting events around the onset of the North Atlantic Igneous Province. Journal of Volcanology and Geothermal Research. In Press. 

64. Midtkandal, I., Svensen, H.H., Planke, S., Corfu, F., Polteau, S., Torsvik, T.H., Faleide, J.I., Grundvåg, S-A., Kürschner, W.M., and Olaussen, S. (2016) The Aptian (Lower Cretaceous) oceanic anoxic event (OAE1a) in Svalbard, Barents Sea, and the absolute age of the Barremian-Aptian boundary. Palaeogeography, Palaeoclimatology, Palaeoecology 463,126–135.

63. Toohey, M., K. Krüger, M. Sigl, F. Stordal, and H. Svensen (2016) Climatic and societal impacts of a volcanic double event at the dawn of the Middle Ages. Climatic Change, DOI: 10.1007/s10584-016-1648-7 (Open Access).

62. Mazzini, Svensen, Planke, Forsberg, Tjelta (2016) Pockmarks and methanogenic carbonates above the giant Troll gas field in the Norwegian North Sea. Marine Geology.

61. Planke, S., Svensen, H., Myklebust, R., Bannister, S., Manton, B., and Lorenz, L. (2016) Geophysics and remote sensing. Advances in Volcanology. In Press. DOWNLOAD

60. Polteau, S., Hendriks, B.W.H., Planke, S., Ganerød, M., Corfu, F., Faleide, J.I., Midtkandal, I., Svensen, H., and Myklebust, R. (2016) The Early Cretaceous Barents Sea sill complex: Distribution, 40Ar/39Ar geochronology, and implications for carbon gas formation. Palaeogeography, Palaeoclimatology, Palaeoecology, 441, 83-95.

59. Jones, M.T., Jerram, D.A., Svensen, H.H., and Grove, C. (2016) The effects of large igneous provinces on the global carbon and sulphur cycles. Palaeogeography, Palaeoclimatology, Palaeoecology, 441, 4-21.

58. Svensen, H.H., Planke, S., Neumann, E.R., Aarnes, I., Marsh, J.S., Polteau, S., Harstad, C., and Chevallier, L. (2016) Sub-volcanic intrusions and the link to global climatic and environmental changes. Advances in Volcanology. In Press.

57. Polozov, A.G.,  Svensen, H.H., Planke, S., Grishina, S.N., Fristad, K.E., and Jerram, D.A. (2016) The basalt pipes of the Tunguska Basin (Siberia, Russia): High temperature processes and volatile degassing to the end-Permian atmosphere. Palaeogeography, Palaeoclimatology, Palaeoecology, 441, 51-64.

56. Jerram, D.A.,  Svensen, H.H., Planke, S., Polozov, A.G., and Torsvik, T.H. (2016) The onset of flood volcanism in the north-western part of the Siberian traps: Explosive volcanism versus effusive lava flows. Palaeogeography, Palaeoclimatology, Palaeoecology, 441, 38-50.

55. Svensen, H., Polteau, S., Cawthorn, G., and Planke, S. (2015) Sub-volcanic intrusions in the Karoo Basin, South Africa. Advances in Volcanology. In Press. DOI: 10.1007/11157_2014_7. DOWNLOAD.


54. Sibik, S., Edmonds, M., MacLennan, J., and Svensen, H. (2015) Magmas erupted during the main pulse of Siberian Traps volcanism were volatile-poor. J. Petrology 56 (11): 2089-2116, doi:10.1093/petrology/egv064

53. Aarnes, I, Planke, S., Trulsvik, M., and Svensen, H.H. (2015) Contact metamorphism and thermogenic gas generation in the Vøring and Møre basins, offshore Norway, during the Paleocene-Eocene thermal maximum. Journal of the Geological Society, London, doi:10.1144/jgs2014-098.

52. Fristad, K.E., Pedentchouk, N., Roscher, M., Polozov, A., and Svensen, H. (2015) An Integrated Carbon Isotope Record of an end-Permian Crater Lake above a Phreatomagmatic Pipe of the Siberian Traps.  Palaeogeography, Palaeoclimatology, Palaeoecology 428, 39-49.

51. Svensen, H., Fristad, K.E., Polozov, A.G., and Planke, S. (2015) Volatile generation and release from continental large igneous provinces. In Volcanism and Global Environmental Change, p. 177-192, edited by Schmidt, Fristad and Elkins-Tanton. Cambridge University Press.

50. Svensen, H., Hammer, Ø., and Corfu, F. (2015) Astronomically forced cyclicity in the Upper Ordovician and U-Pb ages of interlayered tephra, Oslo Region, Norway. Palaeogeography, Palaeoclimatology, Palaeoecology 418, p. 150-159.


49. Senger, K., Planke, S., Polteau, S., Ogata, K., and Svensen, H. (2014) Sill emplacement and contact metamorphism in a siliciclastic reservoir on Svalbard, Arctic Norway. Norwegian Journal of Geology, v. 94, p. 155–169. Open access.

48. Ekström, A., and Svensen, H. (2014) Naturkatastrofer i menneskets tidsalder: Mot en tverrfaglig forståelse av antropocen-begrepet. Tidsskrift for kulturforskning v. 13, nr. 3 2014, s. 6-21. (Abstract in English, main text in Norwegian). Open access.


47. Neumann, Else-R., Svensen, H., Tegner, C.M., Planke, S., Thirlwall, M., and Jarvis, K.E. (2013)
Sill and lava geochemistry of the mid-Norway and NE Greenland conjugate margins. Geochemistry Geophysics Geosystems 2013, v. 14, p. 3666-3690. DOWNLOAD.

46. Corfu, F., Polteau, S., Planke, S., Faleide, JI, Svensen, H., Zayoncheck, A., and Stolbov, N. (2013) U-Pb geochronology of Cretaceous magmatism on Svalbard and Franz Josef Land, Barents Sea Large Igneous Province. Geological Magazine, DOI: 10.1017/S0016756813000162.

45. Pang, K-N., Arndt, N., Svensen, H., Planke, S., Polozov, A., Polteau, S., Iizuka, Y., and Chung, S-L. (2013) A petrologic, geochemical and Sr-Nd isotopic study on contact metamorphism and degassing of Devonian evaporites in the Norilsk aureoles, Siberia. Contributions to Mineralogy and Petrology, DOI: 10.1007/s00410-012-0830-9.  DOWNLOAD.

44. Leanza, H.A., Mazzini, A., Corfu, F., Llambías, E.J., Svensen, H., Planke, S., and Galland, O. (2013) The Chachil Limestone (Pliensbachian-earliest Toarcian) Neuquén Basin, Argentina: U-Pb age calibration and its significance on the Early Jurassic evolution of southwestern Gondwana. Journal of South American Earth Sciences,  42, pages 171-185.


43. Svensen, H. (2012) Bubbles from the deep. Nature 483, 413-415, doi: 10.1038/483413a.

42. Aarnes, Y. Podladchikov, and Svensen, H. (2012) Devolatilization-induced pressure buil-up: Implications for reaction front movement and breccia pipe formation. Geofluids, doi:10.1111/j.1468-8123.2012.00368.x.

41. Svensen, H., Corfu, F., Polteau, S., Hammer, Ø., and Planke, S. (2012) Rapid magma emplacement in the Karoo Large Igneous Province. Earth and Planetary Science Letters, 325-326, 1-9. DOWNLOAD.


40. Mazzini, A., Etiope, G., and Svensen, H. A new hydrothermal scenario for the 2006 Lusi eruption (Java, Indonesia) (2011) Insights from gas geochemistry and the adjacent volcanic complex. Earth and Planetary Science Letters.

39. Aarnes, I, Fristad, K., Planke, S., and Svensen, H. (2011) The impact of host-rock composition on devolatilization of sedimentary rocks during contact metamorphism around mafic sheet intrusions. G-Cubed v12, G10019, doi: 10.1029/2011GC003636. DOWNLOAD.

38. Jamtveit, B., Kobchenko, M., Austrheim, H., Malthe-Sørenssen, A., Røyne, A., and Svensen, H.  (2011) Porosity evolution and crystallization-driven fragmentation during weathering of andesite. Journal of Geophysical Research, In Press.

37. Mazzini, A., Svensen, H., Etiope, G., Onderdonk, N., and Bank, D. (2011) Fluid origin, gas fluxes and plumbing system in the sediment-hosted Salton Sea Geothermal System (California, USA). Journal of Volcanology and Geothermal Research, DOWNLOAD.

36. Neumann, E-R., Svensen, H., Galerne, C., and Planke, S. (2011) Multistage evolution of magmas in the Karoo Large Igneous Province. Journal of Petrology 52, 959-984.DOWNLOAD.

35. Grab, S., and Svensen, H. (2011) Rock doughnut and pothole structures of the Clarens Sandstone in the Karoo Basin, South Africa: possible links to Lower Jurassic fluid seepage. Geomorphology 131, 14-27. DOWNLOAD.

34. Onderdonk, N., Mazzini, A., N., Shafer, L., and Svensen, H. (2011) Controls on the geomorphic expression and evolution of gryphons, mud pots, and caldera features at hydrothermal seeps in the Salton Sea Geothermal Field, southern California.Geomorphology 130, 327-342. DOWNLOAD.

33. Roscher, M., Stordal, F., and Svensen, H. (2011) The effect of global warming and global cooling on the distribution of the latest Permian climate zones. Palaeogeography, Palaeoclimatology, Palaeoecology, 309, 186-200. DOWNLOAD.

32. Aarnes, I., Svensen, H., Polteau, S., and Planke, S. (2011) Contact metamorphic devolatilization of shales in the Karoo Basin, South Africa, and the effects of multiple sill intrusions. Chemical Geology 281, 181-194. DOWNLOAD.


31. Nermoen, A., Galland, O., Fristad, K., Podladchikov, Y.Y., Svensen, H., and Malthe-Sørenssen, A. Experimental and analytical modeling of piercement structures. Journal of Geophysical Research VOL. 115, B10202, doi:10.1029/2010JB007583. DOWNLOAD

30. Aarnes, Svensen, Connolly, and Podladchikov. How contact metamorphism can trigger global climate changes: Modeling gas generation around igneous sills in sedimentary basins. Geochimica et Cosmochimica Acta 74, 7179-7195. DOWNLOAD

29. Mazzini, A., Svensen, H., Leanza, H., Corfu, F., and Planke, S. Early Jurassic shale chemostratigraphy and U-Pb ages from the Neuquen Basin (Argentina): implications for the Toarcian Oceanic Anoxic Event. Earth and Planetary Science Letters 297, 633-645. DOWNLOAD

28. Svensen, H., and Jamtveit, B. Metamorphic fluids and global environmental changes. Elements 6, 179-182. DOWNLOAD

27. Svensen, H., Planke, S., and Corfu, F. (2010) Zircon dating ties North Atlantic gas eruptions to Eocene warming. Journal of the Geological Society 167, 433-436. DOWNLOAD

26. Svensen, H., Aarnes, I., Podladchikov, Y., Jettestuen, E., Harstad, C.H., and Planke, S. Sandstone dikes in dolerite sills: Evidence for high pressure gradients and sediment mobilization during solidification of magmatic sheet intrusions. Geosphere 6, 211-224. DOWNLOAD

25. Corfu, F., Svensen, H., Neumann, E-R., Nakrem, H.A., and Planke, S. (2010) Geochemistry and U-Pb age of mafic intrusives in central Novaya Zemlya, Arctic Russia: a Neoproterozoic magmatic arc, not a Mesozoic LIP. Terra Nova 22, 116-124. DOWNLOAD


24. Svensen, H., Schmidbauer, N., Roscher, M., Stordal, F., and Planke, S. (2009) Contact metamorphism, halocarbons, and environmental crises of the past. Environmental Chemistry 6, 466-471. DOWNLOAD

23. Mazzini, Nermoen, Krotkiewski, Podladchikov, Planke, and Svensen (2009) Strike-slip faulting as a trigger mechanism for overpressure release by piercement structures. Implications for the Lusi mud volcano, Indonesia. Marine and Petroleum Geology 26, 1751-1765.

22. Svensen, H., Hammer, Ø., Mazzini, A., Onderdonk, N., Polteau, S., and Planke, S. (2009)  Dynamics of hydrothermal seeps from the Salton Sea Geothermal System (California, USA) constrained by temperature monitoring and time series analysis. Journal of Geophysical Research (Solid Earth), 114, B09201, doi:10.1029/2008JB006247. DOWNLOAD

21. Mazzini, A., Svensen, H., Planke, S., Guliev, I., Akhmanov, G.G., Fallick, T., and Banks, D. (2009) When mud volcanoes sleep. Marine and Petroleum Geology 26, 1704-1715. DOWNLOAD

20. Svensen, H., Planke, S., Polozov, A., Schmidbauer, N., Corfu, F., Podladschikov, Y., and Jamtveit, B. (2009) Siberian gas venting and the end-Permian environmental crisis. Earth and Planetary Science Letters, 277, 490-500. DOWNLOAD


19. Mazzini, A., Ivanov, M.K., Nermoen, A., Bahr, Bohrman, G., Svensen, H., and Planke, S. (2008) Complex plumbing systems in the near subsurface: Geometries of authigenic carbonates from Dolgovskoy Mound (Black Sea) constrained by analogue experiments.Marine and Petroleum Geology 25, 457-472. DOWNLOAD

18. Svensen, H., Bebout, G., Kronz, A., Li, L., Planke, S., Chevallier, L., and Jamtveit, B. (2008) Nitrogen geochemistry as a tracer of fluid flow in a hydrothermal vent complex in the Karoo Basin, South Africa. Geochimica et Cosmochimica Acta 72, 4929-4947. DOWNLOAD


17. Svensen, H., Karlsen, D.A., Sturz, A, Backer-Owe, K., Banks, D.A., and Planke, S. (2007) Processes controlling water and hydrocarbon composition in seeps from the Salton Sea Geothermal System, California, USA. Geology 35, 85-88. DOWNLOAD

16. Svensen, H., Planke, S., Chevallier, L., Malthe-Sørenssen, A., Corfu, B., and Jamtveit, B. (2007) Hydrothermal venting of greenhouse gases triggering Early Jurassic global warming. Earth and Planetary Science Letters 256, 554-566. DOWNLOAD

15. Mazzini, A., Svensen, H., Akhmanov, G.G., Aloisi, G., Planke, S., Malthe-Sørenssen. A., and Istadi, B. (2007) Triggering and dynamic evolution of the LUSI mud volcano, Indonesia.Earth and Planetary Science Letters 261, 375-388. DOWNLOAD


14. Hovland, M., & Svensen, H. (2006) Submarine pingoes: Indicators of shallow gas hydrates in a pockmark at Nyegga, Norwegian Sea. Marine Geology 228, 15-23. DOWNLOAD

13. Svensen, H.,  Jamtveit, B., Planke, S., and Chevallier, L. (2006) Structure and evolution of hydrothermal vent complexes in the Karoo Basin, South Africa. J. Geol. Soc. London 163, 671-682. DOWNLOAD (This material has been published in Journal of the Geological Society, vol 163, 2006, 671-682., the only definitive repository of the content that has been certified and accepted after peer review. Copyright and all rights therein are retained by The Geological Society of London.The Geological Society’s on-line journals at:

12. Mazzini, A., Svensen, H., Hovland, M. & Planke, S. (2006) Comparison and implications from strikingly different autigenic carbonates in a Nyegga complex pockmark, G11, Norwegian Sea.  Marine GeologyDOWNLOAD


11. Hovland, M., Svensen, H., Forsberg, C. F., Johansen, C. Fichler, H., Fosså, J. H., Jonsson, R., and Rueslåtten H. (2005) Complex pockmarks with carbonate-ridges off mid-Norway: products of sediment degassing. Marine Geology 218, 191-206. DOWNLOAD


10. Svensen, H.,  Planke, S., Malthe-Sørenssen, A., Jamtveit, B., Myklebust, R., Eidem, T., and Rey, S. S. (2004) Release of methane from a volcanic basin as a mechanism for initial Eocene global warming. Nature, 429, 542-545. DOWNLOAD

9. Jamveit, B., Svensen, H., Podladchikov, J.J., and Planke, S. (2004) Hydrothermal vent complexes associated with sill intrusions in sedimentary basins. Geol. Soc. London, Spec. Publ. 234, 233-241. DOWNLOAD

8. Malthe-Sørenssen, A., Planke, S., Svensen, H., and Jamtveit, B. (2004) Modelling sill emplacement. Geol. Soc. London, Spec. Publ. 234, 215-227. DOWNLOAD


7. Svensen, H., Dysthe, D. K., Bandlien, E. H., Sacko, S., Coulibaly, H., and Planke, S. (2003) Subsurface fires in Mali: refutation of the active volcanism hypothesis in West Africa.Geology, 31, p. 581-584. DOWNLOAD

6. Svensen, H., Planke, S., Jamtveit, B., and Pedersen, T. (2003) Seep carbonate formation controlled by hydrothermal vent complexes: a case study from the Vøring volcanic basin, the Norwegian Sea. Geo-Marine Letters 23, 351-358. DOWNLOAD

5. Planke, S., Svensen, H., Hovland, M., Banks, DA., and Jamtveit, B. (2003) Mud and fluid migration in active mud volcanoes in Azerbaijan. Geo-Marine Letters 23, 258-268.DOWNLOAD


4. Svensen, H., Jamtveit, B., Banks, D. A., and Austrheim, H. (2001) Halogen contents of eclogite-facies fluid inclusions and minerals: Caledonides, western Norway. Journal of Metamorphic Geology 19, p. 165-178. DOWNLOAD

3. Svensen, H., Jamtveit, B., Banks, D. A., and Karlsen, D. (2001) Fluids and halogens at the diagenetic-metamorphic boundary: Evidence from veins in continental basins, western Norway. Geofluids 1, p. 53-70. DOWNLOAD
2. Svensen, H., Jamtveit, B., Yardley, B.W.D., Engvik, A.K., Austrheim, H., and Broman, C. (1999) Lead and Bromine enrichment in eclogite facies fluids: Extreme fractionation during lower-crustal hydration. Geology, 27, p. 467-470. DOWNLOAD

1. Svensen, H., and Jamtveit, B. (1998) Contact metamorphism of shales and carbonates from the Grua area, the Oslo rift, Norway: a phase petrological study. Norwegian Journal of Geology, 78, p. 81-98.


1. Discussion on structure and evolution of hydrothermal vent complexes in the Karoo Basin, South Africa. Initiated by Lock and Robey, with a reply from Svensen, Planke, Jamtveit, and Chevallier (2007) J. Geol. Soc. London 164, 477-479. DOWNLOAD (This material has been published in Journal of the Geological Society, vol 164, 2007, 477-479., the only definitive repository of the content that has been certified and accepted after peer review. Copyright and all rights therein are retained by The Geological Society of London.The Geological Society’s on-line journals at: