2026-07-06T07:32:33Zhttp://doidb.wdc-terra.org/oaip/oai

oai:doidb.wdc-terra.org:79492025-04-15T11:17:44ZDOIDBDOIDB.SEISNET

false4DOIDB.SEISNET 10.14470/4P044426 Schweitzer, Johannes Johannes Schweitzer 0000-0002-5986-1492 Norwegian Seismic Array, Lillestrøm, Norway Schmidt-Aursch, Mechita Mechita Schmidt-Aursch 0000-0002-2393-4514 Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany Krüger, Frank Frank Krüger 0009-0007-2662-008X University of Potsdam, Germany Guterch, Alexander Polish Academy of Sciences, Warsaw, Poland GFZ Data Services 2024 Deutsches GeoForschungsZentrum GFZ GEOFON Data Centre geofon@gfz.de Norwegian Seismic Array, Lillestrøm, Norway Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany University of Potsdam, Germany Polish Academy of Sciences, Warsaw, Poland EARTH SCIENCE > SOLID EARTH > TECTONICS > EARTHQUAKES EARTH SCIENCE > OCEANS > MARINE GEOPHYSICS Instruments > In Situ/Laboratory Instruments > Magnetic/Motion Sensors > Seismometers Instruments > In Situ/Laboratory Instruments > Profilers/Sounders > Acoustic Sounders > HYDROPHONES In Situ Land-based Platforms > GEOPHYSICAL STATIONS/NETWORKS Passive seismic Temporary Seismometers Hydrophones Velocity MiniSEED DEPAS Pool OBS Geophysics 2007-09-18/2008-09-20 2024-06-19 2024-06-24 2024-07-15 2024-07-16 2024-07-15 en Seismic Network Creative Commons Attribution 4.0 International 10.17815/jlsrf-3-165 10.1111/j.1365-246X.2010.04873.x 10.1016/j.jog.2018.01.013 10.1007/s11001-012-9155-3 10.21348/p.2011.0001 10.21348/p.2008.0001 10.1007/s10950-017-9692-y 10.1785/0220210018 10.31905/TYLLQY8T 10.1029/2010JB007889 https://geofon.gfz.de/waveform/archive/response/9C/2007_2008 https://obsinfo.readthedocs.io/en/master/ https://www.ipgp.fr/~crawford/Documents/OBS_data_standards.pdf 110GB .mseed XML BEAR ISLAND (The Dynamic Continental Margin Between the Mid-Atlantic-Ridge System (Mohns Ridge, Knipovich Ridge) and the Bear Island Region) is an interdisciplinary project exploring the stress conditions and sources, and the dynamics and deformation characteristics of the continental margin between the Mid-Atlantic Ridge and Bear Island from its top sedimentary cover to its imprint in the upper mantle. In this region the margin includes an extremely thick sedimentary wedge and steep slopes, with at least one major paleo-fracture zone cutting through the wedge. Recent studies in this area indicate very low seismic velocities in the lithosphere and the stress field undergoes an extensional-compressional transition. It is therefore of particular interest to understand the structural architecture, the stress and the dynamics of the whole region because of its natural hazard exposure and the processes involved in the formation of the margin and the opening of the North Atlantic. To achieve this, deep seismic sounding data, as well as records from temporary broadband installations, supplementary to data from existing seismic stations in the region were collected. A key element of the project was the operation of a long-term network of broadband ocean-bottom seismometers (OBS). Additionally, two new broadband seismometers and a small temporary seismic array with 13 sensors were operated. Active seismic refraction/reflection experiments were conducted along two profiles crossing the region and recorded with additional short period OBSs and land stations. Twelve broadband ocean-bottom seismometers (OBS) from the German Instrument Pool of Amphibian Seismology (DEPAS) were deployed as part of this network with RV Horyzont II in September 2007. They were distributed on the Barents shelf, the slope and the deep sea near the Mid-Atlantic Ridge. Nine instruments could be recovered in August 2008 with RV Horyzont II. One instrument was fished before, one was destroyed during recovery and one got lost. Seven stations recorded data for the full deployment period; two stations have no skew value. The time correction for these stations was estimated by noise cross-correlations. Based on previous experiments, the accuracy of the positions is estimated to 500 m. Waveform data is available from the GEOFON data centre, under network code 9C. 6.0 16.0 72.0 76.0 Fram Strait The Research Council of Norway https://doi.org/10.13039/501100005416 176069