Year: 2026
Type: data-paper
Abstract: The mid-Norwegian margin is one of the best studied volcanic rifted margins on Earth. Geophysical investigations have demonstrated the presence of well-developed inner and outer Seaward Dipping Reflectors (SDRs), landward flows, lava deltas, marginal highs, volcanic centers, ash layers, and sill complexes. These features have been proven to consist of magmatic rocks through the international Deep Sea Drilling Program (DSDP Leg 38, 1974), Ocean Drilling Program (ODP Leg 104, 1985), International Ocean Discovery Program (IODP Expedition 396, 2021), and commercial drilling. A total of fifteen drill cores penetrated magmatic rocks that formed between 57 and 50 million years ago (Ma). Here we provide (i) new (n = 224) major and trace element compositions obtained by X-ray fluorescence (XRF), inductively-coupled plasma mass spectrometry (ICP-MS), and inductively-coupled optical emission spectrometry (ICP-OES) on whole rock powders of magmatic rocks for IODP Exp. 396 (n = 119), ODP Exp. 104 (n = 79), DSDP Exp. 38 (n = 24); and (ii) a compilation of all new and published data for magmatic rocks in the fifteen drill cores (n = 563). Portable X-ray fluorescence (pXRF) data (n = 381) for the IODP Exp. 396 cores are also reported. These datasets provide a resource for examining the origin of magmatism associated with continental breakup and rifted margin formation, particularly the formation of excess magmatism compared to normal mid-oceanic spreading ridges, mantle-crust interaction, and the linkage of magmatism to global hyperthermal events on Earth's surface.
Source: Scientific Data
Authors: C. Tegner, P. Guo, S. Chatterjee, S. Lambart, M. T. Jones, S. Planke, H. H. Svensen, E. R. Neumann, C. E. Lesher, K. Cashman, T. Takahashi, E. H. Cunningham, A. M. Morris, E. W. Stokke, J. M. Millett, G. T. F. Mohn, J. Longman, C. Berndt, C. A. Alvarez Zarikian, P. Betlem, E. C. Ferré, I. Y. Filina, J. Frieling, D. T. Harper, R. P. Scherer, N. Varela, W. Xu
Institutions: Aarhus University, Chinese Academy of Sciences, Institute of Oceanology, Earthquake Research Institute, University of Tokyo, The University of Tokyo, University of Utah, University of Oslo, Umeå University, Volcanic Basin Petroleum Research (Norway), University of California, Davis, University of Oregon, Niigata University, University of Aberdeen, CY Cergy Paris Université, Laboratoire Géosciences et Environnement Cergy, Northumbria University, GEOMAR Helmholtz Centre for Ocean Research Kiel, Texas A&M University, Norwegian Geotechnical Institute, University Centre in Svalbard, New Mexico State University, University of Nebraska–Lincoln, University of Oxford, Northern Illinois University, University of Virginia, University College Dublin, Research Ireland Centre for Applied Geosciences
Language: English
Subfield: Geophysics
Field: Earth and Planetary Sciences
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,490
OpenAlex ID: W7140190108