Science report
| 
29 May 2015
Science report |
| 29 May 2015
COSC-1 – drilling of a subduction-related allochthon in the Palaeozoic Caledonide orogen of Scandinavia
Department of Earth Sciences, Uppsala University, Villavägen 16, 752 36 Uppsala, Sweden
J.-E. Rosberg
Engineering Geology, Lund University, John Ericssons väg 1, 221 00 Lund, Sweden
C. Juhlin
Department of Earth Sciences, Uppsala University, Villavägen 16, 752 36 Uppsala, Sweden
L. Bjelm
Engineering Geology, Lund University, John Ericssons väg 1, 221 00 Lund, Sweden
B. S. G. Almqvist
Department of Earth Sciences, Uppsala University, Villavägen 16, 752 36 Uppsala, Sweden
T. Berthet
Department of Earth Sciences, Uppsala University, Villavägen 16, 752 36 Uppsala, Sweden
R. Conze
GFZ German Research Centre for Geosciences, Telegrafenberg, 14473 Potsdam, Germany
D. G. Gee
Department of Earth Sciences, Uppsala University, Villavägen 16, 752 36 Uppsala, Sweden
I. Klonowska
Department of Earth Sciences, Uppsala University, Villavägen 16, 752 36 Uppsala, Sweden
C. Pascal
Institute of Geology, Mineralogy and Geophysics, Ruhr-University Bochum, Universitätsstraße 150, 44780 Bochum, Germany
K. Pedersen
Department of Civil and Environmental Engineering, Chalmers University of Technology, 412 96 Gothenburg, Sweden
N. M. W. Roberts
NERC Isotope Geosciences Laboratory, British Geological Survey, Nottingham, NG12 5GG, UK
C.-F. Tsang
Department of Earth Sciences, Uppsala University, Villavägen 16, 752 36 Uppsala, Sweden
Lawrence Berkely National Laboratory, Earth Sciences Division, 1 Cyclotron Road, MS74R316C, Berkeley, CA 94720, USA
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Cited
43 citations as recorded by crossref.
- Identification of gas inflow zones in the COSC-1 borehole (Jämtland, central Sweden) by drilling mud gas monitoring, downhole geophysical logging and drill core analysis T. Wiersberg et al. 10.1016/j.apgeochem.2019.104513
- Seismic reflectivity, fracturing and stress field data from the FFC-1 exploratory geothermal project in SW Skåne, Sweden C. Juhlin et al. 10.1016/j.geothermics.2022.102521
- Deciphering the tectonometamorphic history of subducted metapelites using quartz‐in‐garnet and Ti‐in‐quartz (QuiG–TiQ) geothermobarometry—A key for understanding burial in the Scandinavian Caledonides P. Jeanneret et al. 10.1111/jmg.12693
- 3D reflection seismic imaging at the 2.5km deep COSC-1 scientific borehole, central Scandinavian Caledonides P. Hedin et al. 10.1016/j.tecto.2015.12.013
- Anisotropic velocity models for (3-D) seismic imaging of the Lower Seve Nappe in Jämtland, Sweden F. Kästner et al. 10.1093/gji/ggab339
- COSC-1 – drilling of a subduction-related allochthon in the Palaeozoic Caledonide orogen of Scandinavia H. Lorenz et al. 10.5194/sd-19-1-2015
- Report on the ICDP workshop DIVE (Drilling the Ivrea–Verbano zonE) M. Pistone et al. 10.5194/sd-23-47-2017
- Replacement reactions and deformation by dissolution and precipitation processes in amphibolites F. Giuntoli et al. 10.1111/jmg.12445
- Flowing fluid electrical conductivity logging of a deep borehole during and following drilling: estimation of transmissivity, water salinity and hydraulic head of conductive zones C. Doughty et al. 10.1007/s10040-016-1497-5
- A field test on the hydromechanical behaviour of flowing and nonflowing fractures in the 2.5 km COSC-1 borehole in crystalline rock, Sweden Y. Guglielmi et al. 10.1007/s10040-025-02886-3
- The post-Caledonian thermo-tectonic evolution of Fennoscandia P. Green et al. 10.1016/j.gr.2022.03.007
- Anisotropic Kirchhoff pre-stack depth migration at the COSC-1 borehole, central Sweden H. Simon et al. 10.1093/gji/ggz286
- Geochronology and Stable Isotope Analysis of Fracture-Fill and Karst Mineralization Reveal Sub-Surface Paleo-Fluid Flow and Microbial Activity of the COSC-1 Borehole, Scandinavian Caledonides H. Drake et al. 10.3390/geosciences10020056
- Core‐Log‐Seismic Integration in Metamorphic Rocks and Its Implication for the Regional Geology: A Case Study for the ICDP Drilling Project COSC‐1, Sweden J. Elger et al. 10.1029/2020GC009376
- Exhumation of continental margin rocks from mantle depths to orogenic foreland: example from the Seve Nappe Complex of the central Scandinavian Caledonides C. Ma et al. 10.1007/s00531-022-02205-1
- Variability of the geothermal gradient across two differently aged magma-rich continental rifted margins of the Atlantic Ocean: the Southwest African and the Norwegian margins E. Gholamrezaie et al. 10.5194/se-9-139-2018
- Evaluation of deep geothermal exploration drillings in the crystalline basement of the Fennoscandian Shield Border Zone in south Sweden J. Rosberg & M. Erlström 10.1186/s40517-021-00203-1
- A magnetotelluric investigation of the Scandinavian Caledonides in western Jämtland, Sweden, using the COSC borehole logs as prior information P. Yan et al. 10.1093/gji/ggw457
- Magnetic fabric development in the Lower Seve thrust from the COSC-1 drilling, Swedish Caledonides L. Merz et al. 10.1016/j.tecto.2018.12.018
- Hydrologic testing during drilling: application of the flowing fluid electrical conductivity (FFEC) logging method to drilling of a deep borehole C. Tsang et al. 10.1007/s10040-016-1405-z
- Continental scientific drilling and microbiology: (extremely) low biomass in bedrock of central Sweden G. Westmeijer et al. 10.5194/bg-21-591-2024
- Utilizing the International Geo Sample Number Concept in Continental Scientific Drilling During ICDP Expedition COSC-1 R. Conze et al. 10.5334/dsj-2017-002
- Cross‐Scale Seismic Anisotropy Analysis in Metamorphic Rocks From the COSC‐1 Borehole in the Scandinavian Caledonides F. Kästner et al. 10.1029/2020JB021154
- Structural architecture and composition of crystalline basement offshore west Norway A. Lenhart et al. 10.1130/L668.1
- The derivation of an anisotropic velocity model from a combined surface and borehole seismic survey in crystalline environment at the COSC-1 borehole, central Sweden H. Simon et al. 10.1093/gji/ggx223
- Evaluation of the Lund deep geothermal exploration project in the Romeleåsen Fault Zone, South Sweden: a case study J. Rosberg & M. Erlström 10.1186/s40517-019-0126-7
- Chapter 21 Middle thrust sheets in the Caledonide orogen, Sweden: the outer margin of Baltica, the continent–ocean transition zone and late Cambrian–Ordovician subduction–accretion D. Gee et al. 10.1144/M50-2018-73
- Future Challenges in Continental Scientific Drilling M. Bohnhoff 10.1007/s12594-021-1810-3
- Protracted Shearing at Midcrustal Conditions During Large‐Scale Thrusting in the Scandinavian Caledonides F. Giuntoli et al. 10.1029/2020TC006267
- Correlation of core and downhole seismic velocities in high-pressure metamorphic rocks: a case study for the COSC-1 borehole, Sweden F. Kästner et al. 10.5194/se-11-607-2020
- The Collisional Orogeny in the Scandinavian Caledonides (COSC) project: Some results and current status C. Juhlin et al. 10.1111/1755-6724.13917
- Large-scale, flat-lying mafic intrusions in the Baltican crust and their influence on basement deformation during the Caledonian orogeny R. Lescoutre et al. 10.1130/B36202.1
- Seismic imaging in the eastern Scandinavian Caledonides: siting the 2.5 km deep COSC-2 borehole, central Sweden C. Juhlin et al. 10.5194/se-7-769-2016
- Chapter 23 Swedish Caledonides: key components of an early–middle Paleozoic Himalaya-type collisional orogen D. Gee 10.1144/M50-2019-20
- An innovative optical and chemical drill core scanner A. Sjöqvist et al. 10.5194/sd-19-13-2015
- panMetaDocs, eSciDoc, and DOIDB—An Infrastructure for the Curation and Publication of File-Based Datasets for GFZ Data Services D. Ulbricht et al. 10.3390/ijgi5030025
- Timing of deformation, metamorphism and leucogranite intrusion in the lower part of the Seve Nappe Complex in central Jämtland, Swedish Caledonides Y. Li et al. 10.1080/11035897.2020.1858341
- Hydraulic Modeling of Induced and Propagated Fractures: Analysis of Flow and Pressure Data From Hydromechanical Experiments in the COSC‐1 Deep Borehole in Crystalline Rock Near Åre, Sweden F. Basirat et al. 10.1029/2020WR029484
- Seismic anisotropy in mid to lower orogenic crust: Insights from laboratory measurements of Vp and Vs in drill core from central Scandinavian Caledonides Q. Wenning et al. 10.1016/j.tecto.2016.07.002
- Reactivation of intrabasement structures during rifting: A case study from offshore southern Norway T. Phillips et al. 10.1016/j.jsg.2016.08.008
- A new look at reflection seismic data from the Central Caledonian Transect across the Scandinavian Peninsula C. Juhlin et al. 10.5194/se-16-775-2025
- COSC-2 – drilling the basal décollement and underlying margin of palaeocontinent Baltica in the Paleozoic Caledonide Orogen of Scandinavia H. Lorenz et al. 10.5194/sd-30-43-2022
- Interlaboratory testing of thermal properties at ambient pressure on reference samples and core samples from the COSC-1 scientific drill hole, central Sweden R. Löwe et al. 10.1093/gji/ggaf046
Latest update: 14 Sep 2025
Short summary
The Collisional Orogeny in the Scandinavian Caledonides (COSC) scientific drilling project successfully drilled a 2.5km fully cored borehole (COSC-1) through allochthonous subduction-related high-grade metamorphic gneisses and into the underlying thrust zone. This paper summarizes the scientific rationale of the project and presents first preliminary results.
The Collisional Orogeny in the Scandinavian Caledonides (COSC) scientific drilling project...
