Workshop white paper
| 
02 Dec 2019
Workshop white paper |
| 02 Dec 2019
| 02 Dec 2019
Northeast Atlantic breakup volcanism and consequences for Paleogene climate change – MagellanPlus Workshop report
GEOMAR, 24218 Kiel, Germany
Sverre Planke
Centre for Earth Evolution and Dynamics, Department of Geosciences, University of Oslo, 0315,
Oslo, Norway
VBPR, 0349 Oslo, Norway
Damon Teagle
School of Ocean and Earth Sciences, University of Southampton, SO14 3ZH Southampton, UK
Ritske Huismans
Department of Earth Science, University of Bergen, 5007 Bergen, Norway
Trond Torsvik
Centre for Earth Evolution and Dynamics, Department of Geosciences, University of Oslo, 0315,
Oslo, Norway
Joost Frieling
Department of Earth Sciences, Utrecht University, 3584 Utrecht, the Netherlands
Morgan T. Jones
Centre for Earth Evolution and Dynamics, Department of Geosciences, University of Oslo, 0315,
Oslo, Norway
Dougal A. Jerram
Centre for Earth Evolution and Dynamics, Department of Geosciences, University of Oslo, 0315,
Oslo, Norway
DougalEARTH Ltd, B91 3NU Solihull, UK
Christian Tegner
Department of Geoscience, University of Aarhus, 8000 Aarhus, Denmark
Jan Inge Faleide
Centre for Earth Evolution and Dynamics, Department of Geosciences, University of Oslo, 0315,
Oslo, Norway
Helen Coxall
Department of Geological Sciences, Stockholm University, 106 91 Stockholm, Sweden
Wei-Li Hong
Geological Survey of Norway, 7040 Trondheim, Norway
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Knowledge about physical properties at depth is crucial to image and understand structures linked with orogenic processes. We examined seismic velocities from core and downhole data from the COSC-1 borehole, Sweden, and calibrated our results with laboratory measurements on core samples. Despite a strong mismatch between the core and downhole velocities due to microcracks, mafic units are resolved at all scales, while at sample scale, strong seismic anisotropy correlates with the rock foliation.
Alan T. Kennedy-Asser, Daniel J. Lunt, Paul J. Valdes, Jean-Baptiste Ladant, Joost Frieling, and Vittoria Lauretano
Clim. Past, 16, 555–573, https://doi.org/10.5194/cp-16-555-2020, https://doi.org/10.5194/cp-16-555-2020, 2020
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Global cooling and a major expansion of ice over Antarctica occurred ~ 34 million years ago at the Eocene–Oligocene transition (EOT). A large secondary proxy dataset for high-latitude Southern Hemisphere temperature before, after and across the EOT is compiled and compared to simulations from two coupled climate models. Although there are inconsistencies between the models and data, the comparison shows amongst other things that changes in the Drake Passage were unlikely the cause of the EOT.
Ines Dumke and Christian Berndt
Solid Earth, 10, 1989–2000, https://doi.org/10.5194/se-10-1989-2019, https://doi.org/10.5194/se-10-1989-2019, 2019
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Knowing the velocity with which seismic waves travel through the top of the crust is important both for identifying anomalies, e.g. the presence of resources, and for geophysical data evaluation. Traditionally this has been done by using empirical functions. Here, we use machine learning to derive better seismic velocity estimates for the crust below the oceans. In most cases this methods performs better than empirical averages.
Christopher J. Hollis, Tom Dunkley Jones, Eleni Anagnostou, Peter K. Bijl, Marlow Julius Cramwinckel, Ying Cui, Gerald R. Dickens, Kirsty M. Edgar, Yvette Eley, David Evans, Gavin L. Foster, Joost Frieling, Gordon N. Inglis, Elizabeth M. Kennedy, Reinhard Kozdon, Vittoria Lauretano, Caroline H. Lear, Kate Littler, Lucas Lourens, A. Nele Meckler, B. David A. Naafs, Heiko Pälike, Richard D. Pancost, Paul N. Pearson, Ursula Röhl, Dana L. Royer, Ulrich Salzmann, Brian A. Schubert, Hannu Seebeck, Appy Sluijs, Robert P. Speijer, Peter Stassen, Jessica Tierney, Aradhna Tripati, Bridget Wade, Thomas Westerhold, Caitlyn Witkowski, James C. Zachos, Yi Ge Zhang, Matthew Huber, and Daniel J. Lunt
Geosci. Model Dev., 12, 3149–3206, https://doi.org/10.5194/gmd-12-3149-2019, https://doi.org/10.5194/gmd-12-3149-2019, 2019
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The Deep-Time Model Intercomparison Project (DeepMIP) is a model–data intercomparison of the early Eocene (around 55 million years ago), the last time that Earth's atmospheric CO2 concentrations exceeded 1000 ppm. Previously, we outlined the experimental design for climate model simulations. Here, we outline the methods used for compilation and analysis of climate proxy data. The resulting climate
atlaswill provide insights into the mechanisms that control past warm climate states.
Elmar Albers, Wolfgang Bach, Frieder Klein, Catriona D. Menzies, Friedrich Lucassen, and Damon A. H. Teagle
Solid Earth, 10, 907–930, https://doi.org/10.5194/se-10-907-2019, https://doi.org/10.5194/se-10-907-2019, 2019
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To understand the fate of carbon in subducted oceanic sediments and crust, we studied carbonate phases in rocks from the Mariana subduction zone. These show that carbon is liberated from the downgoing plate at depths less than 20 km. Some of the carbon is subsequently trapped in minerals and likely subducts to greater depths, whereas fluids carry the other part back into the ocean. Our findings imply that shallow subduction zone processes may play an important role in the deep carbon cycle.
Dougal A. Jerram, John M. Millett, Jochem Kück, Donald Thomas, Sverre Planke, Eric Haskins, Nicole Lautze, and Simona Pierdominici
Sci. Dril., 25, 15–33, https://doi.org/10.5194/sd-25-15-2019, https://doi.org/10.5194/sd-25-15-2019, 2019
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This contribution highlights a combined research effort to collect a combined core and down-borehole geophysics data set on two boreholes from the main island on Hawaii. The results represent one of the most complete data sets of fully cored volcanics with associated borehole measurements, which can be confidently matched directly between remote data and core. The data set and results of this study include findings which should enable improved borehole facies analysis through volcanic sequences.
Haoyi Yao, Wei-Li Hong, Giuliana Panieri, Simone Sauer, Marta E. Torres, Moritz F. Lehmann, Friederike Gründger, and Helge Niemann
Biogeosciences, 16, 2221–2232, https://doi.org/10.5194/bg-16-2221-2019, https://doi.org/10.5194/bg-16-2221-2019, 2019
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How methane is transported in the sediment is important for the microbial community living on methane. Here we report an observation of a mini-fracture that facilitates the advective gas transport of methane in the sediment, compared to the diffusive fluid transport without a fracture. We found contrasting bio-geochemical signals in these different transport modes. This finding can help to fill the gap in the fracture network system in modulating methane dynamics in surface sediments.
Zoltán Erdős, Ritske S. Huismans, and Peter van der Beek
Solid Earth, 10, 391–404, https://doi.org/10.5194/se-10-391-2019, https://doi.org/10.5194/se-10-391-2019, 2019
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We used a 2-D thermomechanical code to simulate the evolution of an orogen. Our aim was to study the interaction between tectonic and surface processes in orogenic forelands. We found that an increase in the sediment input to the foreland results in prolonged activity of the active frontal thrust. Such a scenario could occur naturally as a result of increasing relief in the orogenic hinterland or a change in climatic conditions. We compare our results with observations from the Alps.
Morgan T. Jones, Lawrence M. E. Percival, Ella W. Stokke, Joost Frieling, Tamsin A. Mather, Lars Riber, Brian A. Schubert, Bo Schultz, Christian Tegner, Sverre Planke, and Henrik H. Svensen
Clim. Past, 15, 217–236, https://doi.org/10.5194/cp-15-217-2019, https://doi.org/10.5194/cp-15-217-2019, 2019
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Mercury anomalies in sedimentary rocks are used to assess whether there were periods of elevated volcanism in the geological record. We focus on five sites that cover the Palaeocene–Eocene Thermal Maximum, an extreme global warming event that occurred 55.8 million years ago. We find that sites close to the eruptions from the North Atlantic Igneous Province display significant mercury anomalies across this time interval, suggesting that magmatism played a role in the global warming event.
Sonja Geilert, Christian Hensen, Mark Schmidt, Volker Liebetrau, Florian Scholz, Mechthild Doll, Longhui Deng, Annika Fiskal, Mark A. Lever, Chih-Chieh Su, Stefan Schloemer, Sudipta Sarkar, Volker Thiel, and Christian Berndt
Biogeosciences, 15, 5715–5731, https://doi.org/10.5194/bg-15-5715-2018, https://doi.org/10.5194/bg-15-5715-2018, 2018
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Abrupt climate changes in Earth’s history might have been triggered by magmatic intrusions into organic-rich sediments, which can potentially release large amounts of greenhouse gases. In the Guaymas Basin, vigorous hydrothermal venting at the ridge axis and off-axis inactive vents show that magmatic intrusions are an effective way to release carbon but must be considered as very short-lived processes in a geological sense. These results need to be taken into account in future climate models.
Arunima Sen, Emmelie K. L. Åström, Wei-Li Hong, Alexey Portnov, Malin Waage, Pavel Serov, Michael L. Carroll, and JoLynn Carroll
Biogeosciences, 15, 4533–4559, https://doi.org/10.5194/bg-15-4533-2018, https://doi.org/10.5194/bg-15-4533-2018, 2018
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Diverse benthic communities populate a site of methane seepage on the Arctic shelf. Despite a likely reliance on sulfide as an energy source, Oligobrachia worm distributions did not correlate with sulfide concentrations. We suggest that sulfide and carbon generation linked to microbial activity and high methane fluxes determines their presence or absence. We discuss the site and our results within the context of Arctic ecology and economy as well as the biology of seafloor hydrocarbon seeps.
David K. Hutchinson, Agatha M. de Boer, Helen K. Coxall, Rodrigo Caballero, Johan Nilsson, and Michiel Baatsen
Clim. Past, 14, 789–810, https://doi.org/10.5194/cp-14-789-2018, https://doi.org/10.5194/cp-14-789-2018, 2018
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The Eocene--Oligocene transition was a major cooling event 34 million years ago. Climate model studies of this transition have used low ocean resolution or topography that roughly approximates the time period. We present a new climate model simulation of the late Eocene, with higher ocean resolution and topography which is accurately designed for this time period. These features improve the ocean circulation and gateways which are thought to be important for this climate transition.
Pauline Latour, Wei-Li Hong, Simone Sauer, Arunima Sen, William P. Gilhooly III, Aivo Lepland, and Fotios Fouskas
Biogeosciences Discuss., https://doi.org/10.5194/bg-2018-223, https://doi.org/10.5194/bg-2018-223, 2018
Revised manuscript not accepted
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Dissolved iron is one of the most important nutrients for the marine life. The production and consumption of dissolved iron are therefore closely associated with the carbon cycling in the ocean. We present geochemical data and numerical modeling results to discuss how the supply of dissolved iron, from marine sediments to the ocean, is connected to carbon and sulfur cycles and influence the distribution of animals in environments with high methane supply.
Jean-Baptiste P. Koehl, Steffen G. Bergh, Tormod Henningsen, and Jan Inge Faleide
Solid Earth, 9, 341–372, https://doi.org/10.5194/se-9-341-2018, https://doi.org/10.5194/se-9-341-2018, 2018
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The goal of this work is to study large cracks in the Earth's crust called faults near the coast of northern Norway in the SW Barents Sea. We interpreted seismic data (equivalent to X-ray diagram of the Earth) that showed the presence of a large fault near the coast of Norway, which contributed to building the mountain chain observed in Norway and later helped open the North Atlantic Ocean, separating Greenland from Norway.
Joost Frieling, Emiel P. Huurdeman, Charlotte C. M. Rem, Timme H. Donders, Jörg Pross, Steven M. Bohaty, Guy R. Holdgate, Stephen J. Gallagher, Brian McGowran, and Peter K. Bijl
J. Micropalaeontol., 37, 317–339, https://doi.org/10.5194/jm-37-317-2018, https://doi.org/10.5194/jm-37-317-2018, 2018
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The hothouse climate of the early Paleogene and the associated violent carbon cycle perturbations are of particular interest to understanding current and future global climate change. Using dinoflagellate cysts and stable carbon isotope analyses, we identify several significant events, e.g., the Paleocene–Eocene Thermal Maximum in sedimentary deposits from the Otway Basin, SE Australia. We anticipate that this study will facilitate detailed climate reconstructions west of the Tasmanian Gateway.
Joost Frieling, Gert-Jan Reichart, Jack J. Middelburg, Ursula Röhl, Thomas Westerhold, Steven M. Bohaty, and Appy Sluijs
Clim. Past, 14, 39–55, https://doi.org/10.5194/cp-14-39-2018, https://doi.org/10.5194/cp-14-39-2018, 2018
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Past periods of rapid global warming such as the Paleocene–Eocene Thermal Maximum are used to study biotic response to climate change. We show that very high peak PETM temperatures in the tropical Atlantic (~ 37 ºC) caused heat stress in several marine plankton groups. However, only slightly cooler temperatures afterwards allowed highly diverse plankton communities to bloom. This shows that tropical plankton communities may be susceptible to extreme warming, but may also recover rapidly.
Martin Jakobsson, Christof Pearce, Thomas M. Cronin, Jan Backman, Leif G. Anderson, Natalia Barrientos, Göran Björk, Helen Coxall, Agatha de Boer, Larry A. Mayer, Carl-Magnus Mörth, Johan Nilsson, Jayne E. Rattray, Christian Stranne, Igor Semiletov, and Matt O'Regan
Clim. Past, 13, 991–1005, https://doi.org/10.5194/cp-13-991-2017, https://doi.org/10.5194/cp-13-991-2017, 2017
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The Arctic and Pacific oceans are connected by the presently ~53 m deep Bering Strait. During the last glacial period when the sea level was lower than today, the Bering Strait was exposed. Humans and animals could then migrate between Asia and North America across the formed land bridge. From analyses of sediment cores and geophysical mapping data from Herald Canyon north of the Bering Strait, we show that the land bridge was flooded about 11 000 years ago.
P. Klitzke, J. I. Faleide, M. Scheck-Wenderoth, and J. Sippel
Solid Earth, 6, 153–172, https://doi.org/10.5194/se-6-153-2015, https://doi.org/10.5194/se-6-153-2015, 2015
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We introduce a regional 3-D structural model of the Barents Sea and Kara Sea region which is the first to combine information on five sedimentary units and the crystalline crust as well as the configuration of the lithospheric mantle. By relating the shallow and deep structures for certain tectonic subdomains, we shed new light on possible causative basin-forming mechanisms that we discuss.
Related subject area
Location/Setting: Continental | Subject: Geology | Geoprocesses: Effects of major impacts on climate and mass extinctions
Initial results of coring at Prees, Cheshire Basin, UK (ICDP JET project): towards an integrated stratigraphy, timescale, and Earth system understanding for the Early Jurassic
Drilling the Aptian–Albian of the Sergipe–Alagoas Basin, Brazil: paleobiogeographic and paleoceanographic studies in the South Atlantic
New drilling of the early Aptian OAE1a: the Cau core (Prebetic Zone, south-eastern Spain)
Stephen P. Hesselbo, Aisha Al-Suwaidi, Sarah J. Baker, Giorgia Ballabio, Claire M. Belcher, Andrew Bond, Ian Boomer, Remco Bos, Christian J. Bjerrum, Kara Bogus, Richard Boyle, James V. Browning, Alan R. Butcher, Daniel J. Condon, Philip Copestake, Stuart Daines, Christopher Dalby, Magret Damaschke, Susana E. Damborenea, Jean-Francois Deconinck, Alexander J. Dickson, Isabel M. Fendley, Calum P. Fox, Angela Fraguas, Joost Frieling, Thomas A. Gibson, Tianchen He, Kat Hickey, Linda A. Hinnov, Teuntje P. Hollaar, Chunju Huang, Alexander J. L. Hudson, Hugh C. Jenkyns, Erdem Idiz, Mengjie Jiang, Wout Krijgsman, Christoph Korte, Melanie J. Leng, Timothy M. Lenton, Katharina Leu, Crispin T. S. Little, Conall MacNiocaill, Miguel O. Manceñido, Tamsin A. Mather, Emanuela Mattioli, Kenneth G. Miller, Robert J. Newton, Kevin N. Page, József Pálfy, Gregory Pieńkowski, Richard J. Porter, Simon W. Poulton, Alberto C. Riccardi, James B. Riding, Ailsa Roper, Micha Ruhl, Ricardo L. Silva, Marisa S. Storm, Guillaume Suan, Dominika Szűcs, Nicolas Thibault, Alfred Uchman, James N. Stanley, Clemens V. Ullmann, Bas van de Schootbrugge, Madeleine L. Vickers, Sonja Wadas, Jessica H. Whiteside, Paul B. Wignall, Thomas Wonik, Weimu Xu, Christian Zeeden, and Ke Zhao
Sci. Dril., 32, 1–25, https://doi.org/10.5194/sd-32-1-2023, https://doi.org/10.5194/sd-32-1-2023, 2023
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We present initial results from a 650 m long core of Late Triasssic to Early Jurassic (190–202 Myr) sedimentary strata from the Cheshire Basin, UK, which is shown to be an exceptional record of Earth evolution for the time of break-up of the supercontinent Pangaea. Further work will determine periodic changes in depositional environments caused by solar system dynamics and used to reconstruct orbital history.
Gerson Fauth, Mauro Daniel Rodrigues Bruno, Jorge Villegas-Martín, Jairo Francisco Savian, Rodrigo do Monte Guerra, Guilherme Krahl, Francisco Henrique de Oliveira Lima, Oscar Strohschoen Jr., Raquel Gewehr de Mello, Fernando Marcanth Lopes, Carolina Gonçalves Leandro, and Eduardo da Silva Aguiar
Sci. Dril., 29, 1–17, https://doi.org/10.5194/sd-29-1-2021, https://doi.org/10.5194/sd-29-1-2021, 2021
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This paper gives an overview, preliminary results, and perspectives of a drilling project in northeastern Brazil. It presents a promising new record of mid-Cretaceous rocks from the South Atlantic Ocean, which may have registered significant geologic events that affected the distribution of marine ecosystems, as well as major paleoclimatic events. It is also important to assess if a correlation exists between the biotic assemblages of the South Atlantic Ocean and the Tethys Sea.
Pedro Alejandro Ruiz-Ortiz, José Manuel Castro, Ginés Alfonso de Gea, Ian Jarvis, José Miguel Molina, Luis Miguel Nieto, Richard David Pancost, María Luisa Quijano, Matías Reolid, Peter William Skelton, and Helmut Jürg Weissert
Sci. Dril., 21, 41–46, https://doi.org/10.5194/sd-21-41-2016, https://doi.org/10.5194/sd-21-41-2016, 2016
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The Cretaceous was punctuated by several episodes of accelerated global change, defined as Oceanic Anoxic Events (OAE), that reflect abrupt changes in global carbon cycling. In this progress report, we present a new drill core recovering an Aptian section spanning OAE1a in southern Spain. The Cau section is located in the easternmost part of the Prebetic Zone (Betic Cordillera). All the studies performed reveal that the Cau section represents an excellent site to further investigate OAE1a.
Cited articles
Aarnes, I., Svensen, H., Connolly, J. A., and Podladchikov, Y. Y.: How
contact metamorphism can trigger global climate changes: Modeling gas
generation around igneous sills in sedimentary basins, Geochem. Cosmochem.
Ac., 74, 7179–7195, 2010.
Aarnes, I., Svensen, H., Polteau, S., and Planke, S.: Contact metamorphic
devolatilization of shales in the Karoo Basin, South Africa, and the effects
of multiple sill intrusions, Chem. Geol., 281, 181–194, 2011.
Aarnes, I., Planke, S., Trulsvik, M., and Svensen, H.: Contact metamorphism
and thermogenic gas generation in the Vøring and Møre basins, offshore
Norway, during the Paleocene–Eocene thermal maximum, J. Geol. Soc., 172,
588–598, 2015.
Abdelmalak, M. M., Planke, S., Faleide, J. I., Jerram, D. A., Zastrozhnov, D.,
Eide, S., and Myklebust, R.: The development of volcanic sequences at rifted
margins: New insights from the structure and morphology of the Vøring
Escarpment, mid-Norwegian Margin, J. Geophys. Res., 121, 5212–5236, 2016.
Abdelmalak, M. M., Planke, S., Polteau, S., Hartz, E. H., Faleide, J. I.,
Tegner, C., Jerram, D. A., Millett, J. M., and Myklebust, R.: Breakup
volcanism and plate tectonics in the NW Atlantic, Tectonophysics, 760, 267–296,
2019.
Albarède, F.: The survival of mantle geochemical heterogeneities,
American Geophysical Union, Geophys. Monogr. Ser., 160, 27–46, 2005.
Allègre, C. J. and Lewin, E.: Isotopic systems and stirring times of the
Earth's mantle, Earth Planet. Sc. Lett., 136, 629–646, 1995.
Allègre, C. J. and Turcotte, D. L.: Implications of a two-component marble-cake mantle, Nature, 323, 123–127, https://doi.org/10.1038/323123a0, 1986.
Angkasa, S. S., Jerram, D. A., Millett, J. M., Svensen, H. H., Planke, S.,
Taylor, R. A., Schofield, S., and Howell, J.: Mafic intrusions, hydrothermal
venting, and the basalt-sediment transition: Linking onshore and offshore
examples from the North Atlantic igneous province, Interpretation, 5,
SK83–SK101, 2017.
Berndt, C., Planke, S., Alvestad, E., Tsikalas, F., and Rasmussen, T.:
Seismic volcanostratigraphy of the Norwegian Margin: constraints on
tectonomagmatic breakup processes, J. Geol. Soc., 158, 413–426, 2001.
Berndt, C., Hensen, C., Mortera-Gutiérrez, C., Sarkar, S., Geilert, S.,
Schmidt, M., Liebetrau, V., Kipfer, R., Scholz, F., Doll, M., Muff, S., Karstens, J. Planke, S., Petersen, S., Böttner, C., Chi, W.-C., Moser, M., Behrendt, R., Fiskal, A., Lever, M. A., Su, C.-C., Deng, L., Brennwald, M. S., and Lizarralde, D.: Rifting under steam – How rift magmatism triggers
methane venting from sedimentary basins, Geology, 44, 767–770, 2016.
Bijwaard, H. and Spakman, W.: Tomographic evidence for a narrow whole mantle
plume below Iceland, Earth Planet. Sc. Lett., 166, 121–126, 1999.
Bonatti, E.: Not So Hot Hot-Spots in the Oceanic Mantle, Science, 250,
107–111, 1990.
Bond, D. P. G. and Wignall, P. B.: Large igneous provinces and mass
extinctions: An update, Geol. Soc. Am. Spec. Pap., 505, 29–55, 2014.
Boutilier, R. R. and Keen, C. E.: Small-scale convection and divergent plate
boundaries, J. Geophys. Res., 104, 7389–7403, 1999.
Boyle, P. R., Romans, B. W., Tucholke, B. E., Norris, R. D., Swift, S. A.,
and Sexton, P. F.: Cenozoic North Atlantic deep circulation history recorded
in contourite drifts, offshore Newfoundland, Canada, Mar. Geol., 385,
185–203, 2017.
Breivik, A. J., Mjelde, R., Faleide, J. I., and Murai, Y.: Rates of
continental breakup magmatism and seafloor spreading in the Norway
Basin–Iceland plume interaction, J. Geophys. Res.-Sol. Ea., 111, B07102, https://doi.org/10.1029/2005JB004004, 2006.
Brekke, H.: The tectonic evolution of the Norwegian Sea continental margin,
with emphasis on the Vøring and Møre basins, Geol. Soc. Lond. Spec.
Pub., 167, 327–378, 2000.
Brown, E. L. and Lesher, C. E.: North Atlantic magmatism controlled by
temperature, mantle composition and buoyancy, Nat. Geosci., 7, 820–824,
2014.
Brune, S., Williams, S. E., Butterworth, N. P., and Müller, R. D.:
Abrupt plate accelerations shape rifted continental margins, Nature,
536, 201–204, https://doi.org/10.1038/nature18319, 2016.
Charles, A., Condon, D., Harding, I., Pälike, H., Marshall, J., Cui, Y.,
Kump, L., and Croudace, I.: Constraints on the numerical age of the
Paleocene-Eocene boundary, Geochem. Geophy. Geosy., 12, Q0AA17, https://doi.org/10.1029/2010GC003426, 2011.
Coffin, M. F. and Eldholm, O.: Volcanism and continental breakup: a global
compilation of large igneous provinces. In Magmatism and the Causes for
Continental Breakup, Geol. Soc. Spec. Pub., 68, 17–30, 1992.
Coxall, H. K., Huck, C. E., Huber, M., Lear, C. H., Legarda-Lisarri, A.,
O'regan, M., and Backman, J.: Export of nutrient rich Northern Component
Water preceded early Oligocene Antarctic glaciation, Nat. Geosci., 11, 190–196, https://doi.org/10.1038/s41561-018-0069-9, 2018.
Cramer, B. S., Wright, J. D., Kent, D. V., and Aubry, M.-P.: Orbital climate
forcing of δ13C excursions in the late Paleocene-early Eocene
(chrons C24n-C25n), Paleoceanography, 18, 1097, https://doi.org/10.1029/2003PA000909, 2003.
Cramwinckel, M. J., Huber, M., Kocken, I. J., Agnini, C., Bijl, P. K., Bohaty, S. M., Frieling, J., Goldner, A., Hilgen, F. J., Kip, E. L., Peterse, F., van der Ploeg, R., Röhl, U., Schouten, S., and Sluijs, A.: Synchronous tropical and polar temperature evolution
in the Eocene, Nature, 559, 382–386, https://doi.org/10.1038/s41586-018-0272-2, 2018.
Davies, G. F.: Geophysical and Isotopic evidence for an unlayered,
multiple-source mantle, EOS, 64, 175–195, 1983.
DeFoor, W., Person, M., Larsen, H. C., Lizarralde, D., Cohen, D., and Dugan, B.:
Ice sheet–derived submarine groundwater discharge on Greenland's
continental shelf, Water Resour. Res., 47, W07549, https://doi.org/10.1029/2011WR010536, 2011.
Doré, A. G., Lundin, E. R., Jensen, L. N., Birkeland, Ø., Eliassen,
P. E., and Fichler, C.: Principal tectonic events in the evolution of the
northwest European Atlantic margin, Geol. Soc. Lond., Petrol. Geol.
Conf. Ser., 5, 41–61, 1999.
Duncan, R. A., Larsen, H. C., Allan, J. F., and Shipboard Scientific Party: Proc. ODP, Init. Repts., 163: College Station, TX (Ocean Drilling Program), https://doi.org/10.2973/odp.proc.ir.163.1996, 1996.
Egeberg, P. K. and Aagaard, P.: Origin and evolution of formation waters
from oil fields on the Norwegian shelf, Appl. Geochm., 4, 131–142, 1989.
Eldholm, O. and Grue, K.: North Atlantic volcanic margins: dimensions and
production rates, J Geophys. Res., 99, 2955–2968, 1994.
Eldholm, O. and Thomas, E.: Environmental impact of volcanic margin
formation, Earth Planet. Sc. Lett., 117, 319–329, 1993.
Eldholm, O., Thiede, J., Taylor, E., and Shipboard Scientific Party: Proc. ODP, Init. Repts., 104: College Station, TX (Ocean Drilling Program), https://doi.org/10.2973/odp.proc.ir.104.1987, 1987.
Eldholm, O., Thiede, J., Taylor, E., and Shipboard Scientific Party: Proc. ODP, Sci. Results, 104: College Station, TX (Ocean Drilling Program), https://doi.org/10.2973/odp.proc.sr.104.1989, 1989.
Eldholm, O., Gladczenko, T. P., Skogseid, J., and Planke, S.: Atlantic
volcanic margins: a comparative study, Geol. Soc. Lond. Spec. Pub., 167,
411–428, 2000.
Eldholm, O., Tsikalas, F., and Faleide, J. I.: Continental margin off Norway
62–75∘ N: Paleogene tectono-magmatic segmentation and
sedimentation, Geol. Soc. Lond. Spec. Pub., 197, 39–68, 2002.
Faleide, J. I., Bjørlykke, K., and Gabrielsen, R. H.: Geology of the Norwegian Continental Shelf, in: Petroleum Geoscience, Springer, Berlin, Heidelberg, Germany, 2010.
Fitton, J. G., Saunders, A. D., Larsen, L. M., Hardarson, B. S., and Norry,
M. J. Volcanic rocks from the southeast Greenland Margin at 63N:
Composition, petrogenesis, and mantle sources, Proc. ODP Sci. Res., 152, 331–350,
1998.
Fitton, J. G., Larsen, L. M., Saunders, A. D., Hardarson, B. S., and
Kempton, P. D.: Paleogene continental to oceanic magmatism on the SE
Greenland continental margin at 63 N: a review of the results of Ocean
Drilling Program Legs 152 and 163, J. Petrology, 41, 951–966, 2000.
Flaathen, T. K., Gislason, S. R., Oelkers, E. H., and
Sveinbjörnsdóttir, A. E.: Chemical evolution of the Mt. Hekla,
Iceland, groundwaters: A natural analogue for CO2 sequestration in
basaltic rocks, Appl. Geochem., 24, 463–474, 2009.
Foulger, G. R., Pritchard, M. J., Julian, B. R., Evans, J. R., Allen, R. M.,
Nolet, G., and Ragnarsson, S.: Seismic tomography shows that upwelling
beneath Iceland is confined to the upper mantle, Geophys. J. Int., 146,
504–530, 2001.
Fram, M. S., Lesher, C. E., and Volpe, A. M.: Mantle melting: systematics:
transition from continental to oceanic volcanism on the southeast Greenland
Margin, Proc. ODP, Sci. Res., 152, 373–386, 1998.
French, S. W. and Romanowicz, B.: Broad plumes rooted at the base of the
Earth's mantle beneath major hotspots, Nature, 525, 95–98, 2015.
Frieling, J., Svensen, H. H., Planke, S., Cramwinckel, M. J., Selnes, H., and
Sluijs, A.: Thermogenic methane release as a cause for the long duration of
the PETM, P. Natl. Acad. Sci. USA, 113, 12059–12064, 2016.
Geoffroy, L.: Volcanic passive margin Les marge passives volcaniques, Compt.
Rend. Geosci., 337, 1395–1408, 2005.
Gernigon, L., Ringenbach, J. C., Planke, S., Le Gall, B., and
Jonquet-Kolstø, H.: Extension, crustal structure and magmatism at the
outer Vøring Basin, Norwegian margin, J. Geol. Soc., 160, 197–208,
2003.
Gudlaugsson, S. T., Gunnarsson, K., Sand, M., and Skogseid, J.: Tectonic and
volcanic events at the Jan Mayen Ridge microcontinent, Geol. Soc. Lond.,
Spec. Publ., 39, 85–93, 1988.
Hamann, N. E., Whittaker, R. C., and Stemmerik, L.: Geological development
of the Northeast Greenland shelf. In Geol. Soc. Lond., Petrol. Geol. Conf.
Ser., 6, 887–902, 2005.
Hansen, D. M.: The morphology of intrusion-related vent structures and their
implications for constraining the timing of intrusive events along the
northeast Atlantic margin, J. Geol. Soc., 163, 789–800, 2006.
Haupert, I., Manatschal, G., Decarlis, A., and Unternehr, P.: Upper-plate
magma-poor rifted margins: Stratigraphic architecture and structural
evolution, Mar. Petrol. Geol., 69, 241–261,
https://doi.org/10.1016/j.marpetgeo.2015.10.020, 2016.
Heister, L. E., O'Day, P. A., Brooks, C. K., Neuhoff, P. S., and Bird, D. K.:
Pyroclastic deposits within the East Greenland Tertiary flood basalts, J.
Geol. Soc., 158, 269–284, 2001.
Hohbein, M. W., Sexton, P. F., and Cartwright, J. A.: Onset of North
Atlantic Deep Water production coincident with inception of the Cenozoic
global cooling trend, Geology, 40, 255–258, 2012.
Holbrook, W. S. and Kelemen, P. B.: Large igneous province on the US
Atlantic margin and implications for magmatism during continental breakup,
Nature, 364, 433–436, https://doi.org/10.1038/364433a0, 1993.
Holbrook, W. S., Larsen, H. C., Korenaga, J., Dahl-Jensen, T., Reid, I. D.,
Kelemen, P. B., and Detrick, R. S.: Mantle thermal structure and active
upwelling during continental breakup in the North Atlantic, Earth Planet.
Sc. Lett., 190, 251–266, 2001.
Hole, M. J. and Millett, J. M.: Controls of mantle potential temperature and
lithospheric thickness on magmatism in the North Atlantic Igneous Province,
J. Petrol., 57, 417–436, 2016.
Hong, W. L., Lepland, A., Himmler, T., Kim, J. H., Chand, S., Sahy, D.,
Solomon, E. A., Rae, J. W., Martma, T., and Nam, S. I.: Discharge of meteoric water in
the eastern Norwegian Sea since the last glacial period, Geophys. Res. Lett., 46, 8194–8204,
https://doi.org/10.1029/2019GL084237, 2019.
Huismans, R. S. and Beaumont, C.: Depth-dependent extension, two-stage breakup
and cratonic underplating at rifted margins, Nature, 473, 74–78,
https://doi.org/10.1038/nature09988, 2011.
IAEA: Isotope Methods for Dating Old Groundwater, IAEA Library Cataloguing in Publication Data, International Atomic Energy Agency, Vienna, Austria, 2013.
Inagaki, F., Hinrichs, K.-U., Kubo, Y., Bowles, M. W., Heuer, V. B., Hong, W.-L., Hoshino, T., Ijiri, A., Imachi, H., Ito, M., Kaneko, M., Lever, M. A., Lin, Y.-S., Methé, B. A., Morita, S., Morono, Y., Tanikawa, W., Bihan, M., Bowden, S. A., Elvert, M., Glombitza, C., Gross, D., Harrington, G. J., Hori, T., Li, K., Limmer, D., Liu, C.-H., Murayama, M., Ohkouchi, N., Ono, S., Park, Y.-S., Phillips, S. C., Prieto-Mollar, X., Purkey, M., Riedinger, N., Sanada, Y., Sauvage, J., Snyder, G., Susilawati, R., Takano, Y., Tasumi, E., Terada, T., Tomaru, H., Trembath-Reichert, E., Wang, D. T., and Yamada, Y.: Exploring deep microbial life in coal-bearing sediment down
to ∼2.5 km below the ocean floor, Science, 349, 420–424, https://doi.org/10.1126/science.aaa6882, 2015.
Jakobsson, M., Backman, J., Rudels, B., Nycander, J., Frank, M., Mayer, L., Jokat, W., Sangiori, F., O'Reagan, M., Brinkhuis, H., King, J., and Moran, K.: The early Miocene onset of a ventilated circulation regime in the Arctic Ocean, Nature, 447, 986–990, https://doi.org/10.1038/nature05924, 2007.
Jenkins, J., Cottaar, S., White, R. S., and Deuss, A.: Depressed mantle
discontinuities beneath Iceland: Evidence of a garnet controlled 660 km
discontinuity?, Earth Planet. Sc. Lett., 433, 159–168, 2016.
Jones, M. T., Jerram, D. A., Svensen, H. H., and Grove, C.: The effects of
large igneous provinces on the global carbon and sulphur cycles, Paleogeogr.
Paleocl., 441, 4–21, 2016.
Jones, M. T., Percival, L. M. E., Stokke, E. W., Frieling, J., Mather, T. A., Riber, L., Schubert, B. A., Schultz, B., Tegner, C., Planke, S., and Svensen, H. H.: Mercury anomalies across the Palaeocene–Eocene Thermal Maximum, Clim. Past, 15, 217–236, https://doi.org/10.5194/cp-15-217-2019, 2019.
Keen, C. E. and Boutilier, R. R.: Interaction of rifting and hot horizontal
plume sheets at volcanic margins, J. Geophys. Res., 105, 13375–13387,
2000.
Kellogg, J. B., Jacobsen, S. B., and O'Connell, R. J.: Modeling the
distribution of isotopic ratios in geochemical reservoirs, Earth Planet.
Sc. Lett., 204, 183–202, 2002.
Korenaga, J., Holbrook, W. S., Kent, G. M., Kelemen, P. B., Detrick, R. S.,
Larsen, H. C., and Dahl Jensen, T.: Crustal structure of the southeast
Greenland margin from joint refraction and reflection seismic tomography, J.
Geophys. Res., 105, 21591–21614, 2000.
Korenaga, J., Kelemen, P. B., and Holbrook, W. S.: Methods for resolving the
origin of large igneous provinces from crustal seismology, J. Geophys. Res.,
107, 2178, https://doi.org/10.1029/2001JB001030, 2002.
Larsen, H. C. and Saunders, A. D.: Tectonism and volcanism at the Southeast
Greenland rifted margin: a record of plume impact and later continental
rupture, Proc. ODP, Sci. Res., 152, 503–533, 1998.
Larsen, H. C., Saunders, A. D., Clift, P. D., and the Shipboard Scientific Party: Introduction: breakup of the southeast Greenland margin and the formation of the Irminger Basin: background and scientific objectives, in: Proc. ODP, Init. Repts., College Station, TX (Ocean Drilling Program), 152, 5–16, https://doi.org/10.2973/odp.proc.ir.152.101.1994, 1994.
Larsen, L., Waagstein, R., Pedersen, A., and Storey, M.: Trans-Atlantic
correlation of the Paleogene volcanic successions in the Faeroe Islands and
East Greenland, J. Geol. Soc., 156, 1081–1095, 1999.
Larsen, L., Pedersen, A., Tegner, C., Duncan, R., Hald, N., and Larsen, J.:
Age of Tertiary volcanic rocks on the West Greenland continental margin:
volcanic evolution and event correlation to other parts of the North
Atlantic Igneous Province, Geol. Mag., 153, 487–511, 2016.
Larsen, R. B. and Tegner, C.: Pressure conditions for the solidification of
the Skaergaard intrusion: Eruption of East Greenland flood basalts in less
than 300 000 years, Lithos, 92, 181–197, 2006.
Laughton, A. S.: Tectonic evolution of the northeast Atlantic Ocean; a
review, Norg. Geol. Unders. B., 316, 169–193, 1975.
Lourens, L. J., Sluijs, A., Kroon, D., Zachos, J. C., Thomas, E., Röhl, U., Bowles, J., and Raffi, I.: Astronomical pacing of late Palaeocene to early Eocene global
warming events, Nature, 435, 1083–1087, https://doi.org/10.1038/nature03814, 2005.
Lundin, E. R. and Doré, A. G.: A tectonic model for the Norwegian
passive margin withimplications for the northeast Atlantic: Early Cretaceous
to breakup, J. Geol. Soc., 154, 545–550, 1997.
Lundin, E. R. and Doré, A. G.: Northeast Atlantic breakup: a
re-examination of the Iceland mantle plume model and the Atlantic–Arctic
linkage, Geol. Soc. Lond., Petrol. Geol. Conf. Ser., 6, 739–754, 2005.
Lunt, D. J., Ridgwell, A., Sluijs, A., Zachos, J., Hunter, S., and Haywood,
A.: A model for orbital pacing of methane hydrate destabilization during the
Paleogene, Nat. Geosci., 4, 775–778, https://doi.org/10.1038/ngeo1266, 2011.
McKenzie, D. and Bickle, M. J.: The Volume and Composition of Melt Generated
by Extension of the Lithosphere, J. Petrol., 29, 625–679, 1988.
Meibom, A. and Anderson, D. L.: The statistical upper mantle assemblage,
Earth Planet. Sc. Lett., 217, 123–139, 2004.
Menzies, M., Klemperer, S. L., Ebinger, C. J., and Baker, J. A.: Characteristics of volcanic rifted margins, Geol. Soc. Am. Spec. Pap., 362, 1–14, 2002.
Miller, K. G. and Tucholke, B. E.: Development of Cenozoic abyssal
circulation south of the Greenland-Scotland Ridge. In Structure and
development of the Greenland-Scotland Ridge, Springer, Boston, MA, USA, 549–589,
1983.
Minshull, T. A., Marín-Moreno, H., Armstrong McKay, D. I., and Wilson,
P. A.: Mechanistic insights into a hydrate contribution to the
Paleocene-Eocene carbon cycle perturbation from coupled thermohydraulic
simulations, Geophys. Res. Lett., 43, 8637–8644, 2016.
Mjelde, R., Raum, T., Breivik, A., Shimamura, H., Murai, Y., Takanami, T.,
and Faleide, J. I.: Crustal structure of the Vøring Margin,northeast
Atlantic: a review of geological implications based on recent OBS data,
Geol. Soc. Lond., Petrol. Geol. Conf. Ser., 6, 803–813, 2005a.
Mjelde, R., Raum, T., Myhren, B., Shimamura, H., Murai, Y., Takanami, T., Karpuz, R.,
and Næss, U.: Continent-ocean transition on the Vøring Plateau,
northeast Atlantic, derived from densely sampled ocean bottom seismometer
data, J. Geophys. Res.-Sol. Ea., 110, B05101, https://doi.org/10.1029/2004JB003026, 2005b.
Montelli, R., Nolet, G., Dahlen, F. A., Masters, G., Engdahl, E. R., and
Hung, S. H.: Finite frequency tomography reveals a variety of plumes in the
mantle, Science, 303, 338–343, 2004.
Morgan, J. P. and Morgan, W. J.: Two-stage melting and the geochemical
evolution of the mantle: a recipe for mantle plum-pudding, Earth Planet.
Sc. Lett., 170, 215–239, 1999.
Müller, R. D., Gaina, C., Roest, W. R., and Hansen, D.
L.: A recipe for microcontinent formation, Geology, 29, 203–206, 2001.
Mutter, J. C., Buck, W. R., and Zehnder, C. M.: Convective partial melting:
1. A model for theformation of thick basaltic sequences during the
initiation of spreading, J. Geophys. Res., 93, 1031–1048, 1988.
Nielsen, T. K. and Hopper, J. R.: From rift to drift: Mantle melting during
continental breakup, Geochem. Geophy. Geosy., 5, Q07003, https://doi.org/10.1029/2003GC000662, 2004.
Nunns, A.: The Structure and Evolution of the Jan Mayen Ridge and
Surrounding Regions: Rifted Margins: Field Investigations of Margin
Structure and Stratigraphy. Studies in Continental Margin Geology, AAPG Special Volumes, Pub. Id: A110, 1982.
Osmundsen, P. T., Sommaruga, A., Skilbrei, J. R., and Olesen, O.: Deep
structure of the Mid Norway rifted margin, Norw. J. Geol., 82, 205–224, 2002.
Parnell-Turner, R., White, N., Henstock, T., Murton, B., Maclennan, J., and
Jones, S. M.: Acontinuous 55-million-year record of transient mantle plume
activity beneath Iceland, Nat. Geosci., 7, 914–919, https://doi.org/10.1038/ngeo2281, 2014.
Patton, H., Hubbard, A., Andreassen, K., Winsborrow, M., and Stroeven, A. P.:
The build-up, configuration, and dynamical sensitivity of the Eurasian
ice-sheet complex to Late Weichselian climatic and oceanic forcing, Quarternary
Sci. Rev., 153, 97–121, 2016.
Planke, S., Symonds, P. A., Alvestad, E., and Skogseid, J.: Seismic
volcanostratigraphy of large-volume basaltic extrusive complexes on rifted
margins, J. Geophys. Res., 105, 19335–19351, 2000.
Planke, S., Rasmussen, T., Rey, S., and Myklebust, R.: Seismic
characteristics and distribution of volcanic intrusions and hydrothermal
vent complexes in the Vøring and Møre basins, Geol. Soc. Lond.,
Petrol. Geol. Conf. Ser., 6, 833–844, 2005.
Planke, S., Millett, J. M., Maharjan, D., Jerram, D. A., and Abdelmalak, M. M.: Igneous seismic geomorphology of
buried lava fields and coastal escarpments on the Vøring volcanic rifted
margin, Interpretation, 5, SK161–SK177, 2017.
Poore, H. R., Samworth, R., White, N. J., Jones, S. M., and McCave, I. N.:
Neogene overflow of northern component water at the Greenland-Scotland
Ridge, Geochem., Geophy. Geosy., 7, Q06010, https://doi.org/10.1029/2005GC001085, 2006.
Post, V. E., Groen, J., Kooi, H., Person, M., Ge, S., and Edmunds, W.M.:
Offshore fresh groundwater reserves as a global phenomenon, Nature, 504,
71–78, 2013.
Raum, T.: Crustal structure and evolution of the Faeroe, Møre and
Vøring margins from wide-angle seismic and gravity data, PhD Thesis,
University of Bergen, Bergen, Norway, 2000.
Ren, S., Faleide, J. I., Eldholm, O., Skogseid, J., and Gradstein, F.: Late
Cretaceous–Paleocene tectonic development of the NW Vøring basin, Mar.
Petrol. Geol., 20, 177–206, 2003.
Reynolds, P., Planke, S., Millett, J. M., Jerram, D. A., Trulsvik, M., and
Schofield, N.: Hydrothermal vent complexes offshore Northeast Greenland: A
potential role in driving the PETM, Earth Planet. Sc. Lett., 467, 72–78,
2017.
Ritsema, J., van Heijst, H. J., and Woodhouse, J. H.: Complex shear wave velocity structure imaged beneath Africa and Iceland, Science, 286, 1925–1928, 1999.
Roberts, D. G., Schnitker, D., and Shipboard Scientific Party: Init. Rep. DSDP, 81, 701–723, https://doi.org/10.2973/dsdp.proc.81.1984, 1984.
Saunders, A. D., Jones, S. M., Morgan, L. A., Pierce, K., Widdowson, M., and Xu, Y. G.:
Regional uplift associated with continental large igneous provinces: The
roles of mantle plumes and the lithosphere, Chem. Geol., 241, 282–318, 2007.
Simon, K., Huismans, R. S., and Beaumont, C.: Dynamical modeling of
lithospheric extension and small-scale convection: implications for
magmatism during the formation of volcanic rifted margins, Geophys. J. Int.,
176, 327–350, https://doi.org/10.1111/j.1365-246X.2008.03891.x, 2009.
Skogseid, J., Planke, S., Faleide, J. I., Pedersen, T., Eldholm, O., and
Neverdal, F.: Northeast Atlantic continental rifting and volcanic margin
formation, Geol. Soc. Lond., Spec. Publ., 167, 295–326, 2000.
Stärz, M., Jokat, W., Knorr, G., and Lohmann, G.: Threshold in North
Atlantic-Arctic Oceancirculation controlled by the subsidence of the
Greenland-Scotland Ridge, Nat. Commun., 8, 15681, https://doi.org/10.1038/ncomms15681, 2017.
Storey, M., Duncan, R., Pedersen, A., Larsen, L., and Larsen, H.:
40Ar∕39Ar geochronology of the West Greenland Tertiary volcanic
province, Earth Planet. Sc. Lett., 160, 569–586, 1998.
Storey, M., Duncan, R., and Swisher III, C.: Paleocene-Eocene Thermal
Maximum and the opening of the Northeast Atlantic, Science, 316, 587–589,
2007a.
Storey, M., Duncan, R., and Tegner, C.: Timing and duration of volcanism in
the North Atlantic Igneous Province: Implications for geodynamics and links
to the Iceland hotspot, Chem. Geol., 241, 264–281, 2007b.
Svensen, H., Planke, S., Malthe-Sørenssen, Jamtveit, B., Myklebust, R.,
Rasmussen Eidem, T., and Rey, S.: Release of methane from a volcanic basin
as a mechanism for initial Eocene global warming, Nature, 429, 542–545, 2004.
Svensen, H., Planke, S., Chevallier, L., Malthe-Sørenssen, A., Corfu, F.,
and Jamtveit, B.: Hydrothermal venting of greenhouse gases triggering Early
Jurassic global warming, Earth Planet. Sc. Lett., 256, 554–566, 2007.
Svensen, H., Schmidbauer, N., Roscher, M., Stordal, F., and Planke, S.: Contact metamorphism, halocarbons, and environmental crises of the past, Environ. Chem., 6, 466–471, https://doi.org/10.1071/EN09118, 2009.
Svensen, H., Planke, S., and Corfu, F.: Zircon dating tiesnortheastAtlantic
sill emplacement to initial Eocene global warming, J. Geol. Soc., 167,
433–436, 2010.
Talwani, M. and Eldholm, O.: Evolution of the Norwegian-Greenland sea, Geol.
Soc. Am. Bull., 88, 969–999, https://doi.org/10.1130/0016-7606(1977)88<969:EOTNS>2.0.CO;2, 1977.
Taniguchi, M., Burnett, W. C., Cable, J. E., and Turner, J. V.: Investigation
of submarine groundwater discharge, Hydrol. Process., 16, 2115–2129, 2002.
Tegner, C., Duncan, R. A., Bernstein, S., Brooks, C. K., Bird, D. K., and
Storey, M.: 40Ar39Ar geochronology of Tertiary mafic intrusions
along the East Greenland rifted margin: Relation to flood basalts and the
Iceland hotspot track, Earth Planet. Sc. Lett., 156, 75–88, 1998.
Torsvik, T. H., Amundsen, H. E. F., Trønnes, R., Doubrovine, P. V., Gaina, C., Kusznir, N. J., Steinberger, B., Corfu, F., Ashwal, L. D., Griffin, W. L., Werner, S. C., and Jamtveit, B.: Continental crust beneath southeast Iceland, P. Natl. Acad. Sci. USA, 112, E1818–E1827, https://doi.org/10.1073/pnas.1423099112, 2015.
Tsikalas, F., Faleide, J. I., and Eldholm, O.: Lateral variations in
tectono-magmatic style along the Lofoten–Vesterålen volcanic margin off
Norway, Mar. Petrol. Geol., 18, 807–832, 2001.
Tsikalas, F., Eldholm, O., and Faleide, J. I.: Crustal structure of the
Lofoten–Vesterålen continental margin, off Norway, Tectonophysics,
404, 151–174, 2005.
Vaccaro, J. J.: Summary of the Columbia Plateau, Regional Aquifer-system
Analysis, Washington, Oregon, and Idaho, US Geological Survey, Washington, USA, 1999.
Vahlenkamp, M., Niezgodzki, I., De Vleeschouwer, D., Bickert, T., Harper,
D., Turner, S. K., and Pälike, H.: Astronomically paced changes in
deep-water circulation in the western North Atlantic during the middle
Eocene, Earth Planet. Sc. Lett., 484, 329–340, 2018.
Via, R. K. and Thomas, D. J.: Evolution of Atlantic thermohaline
circulation: Early Oligocene onset of deep-water production in the North
Atlantic, Geology, 34, 441–444, 2006.
White, R. and McKenzie, D.: Magmatism at Rift Zones – the Generation of
Volcanic Continental Margins and Flood Basalts, J. Geophys. Res., 94,
7685–7729, 1989.
White, R. and McKenzie, D.: Mantle plumes and flood basalts, J. Geophys.
Res., 100, 17543–17585, 1995.
Wilkinson, C., Ganerød, M., Hendriks, B., and Eide, E.: Compilation and
appraisal of geochronological data from the North Atlantic Igneous Province
(NAIP), Geol. Soc. Lond., Spec. Publ., 447, 69–103, https://doi.org/10.1144/SP447.10, 2016.
Wotzlaw, J., Bindeman, I., Schaltegger, U., Brooks, C., and Naslund, H.:
High-resolution insights into episodes of crystallization, hydrothermal
alteration and remelting in the Skaergaard intrusive complex, Earth Planet.
Sc. Lett., 355, 199–212, 2012.
Zindler, A., Staudigel, H., and Batiza, R.: Isotope and trace element
geochemistry of young Pacific seamounts: implications for the scale of
upper mantle heterogeneity, Earth Planet. Sc. Lett., 70, 175–195, 1984.
Short summary
The northeast Atlantic encompasses archetypal examples of volcanic rifted margins. Twenty-five years after the last ODP leg on these volcanic margins, the reasons for excess melting are still disputed with at least three competing hypotheses being discussed. We are proposing a new drilling campaign that will constrain the timing, rates of volcanism, and vertical movements of rifted margins.
The northeast Atlantic encompasses archetypal examples of volcanic rifted margins. Twenty-five...
