Reflection seismic study of the Siljan Ring impact structure: Orsa - Shot geometry corrected Reflection seismic study of the Siljan Ring impact structure: Orsa - Shot geometry corrected snd1042-2-1.0 https://doi.org/10.5878/002989 Swedish National Data Service Svensk nationell datatjänst Landing page https://www.sciencedirect.com/science/article/pii/S004019511200529X?via%3Dihub Reflection seismic study of the Siljan Ring impact structure: Orsa - Shot geometry corrected Reflection seismic study of the Siljan Ring impact structure: Orsa - Shot geometry corrected snd1042-2-1.0 https://doi.org/10.5878/002989 10.1016/j.tecto.2012.08.040 Juhlin, Christopher Juhlin, Christopher Sturkell, Erik Sturkell, Erik Ebbestad, Jan Ove R. Ebbestad, Jan Ove R. Lehnert, Oliver Lehnert, Oliver Högström, Anette E. S. Högström, Anette E. S. Meinhold, Guido Meinhold, Guido 2009-04492 2009-04492 Swedish National Data Service Svensk nationell datatjänst Landing page https://www.sciencedirect.com/science/article/pii/S004019511200529X?via%3Dihub EARTH SCIENCE geological disaster geologisk katastrof geophysics geofysik research forskning Geoscientific Information Geovetenskap Two new reflection seismic profiles over the Paleozoic successions of the western part of the Siljan Ring impact structure were acquired during 2011, the Mora and the Orsa profile. This data set concerns the Orsa profile. The profile has length of c. 12 km and the processed data image the geological section to about 3 km depth (Silurian siliciclastic and Ordovician carbonate rocks to serveral hundred metres depth, below disturbed Paleoproterozoic crystalline basement). During the survey, 542 source points (VIBSIST 3000) were recorded by 320 receiver channels for 30 seconds. From this recording, the following data sets were generated and are published here: 1) decoded and quality controlled raw data; 2) pre-processed (shot geometry applied) data; 3) stacked data; 4) migrated data; 5) depth converted data and velocity field. Key acquisition parameters are: Number of channels: 320 (160–160) Near offset: 0m Geophone spacing: 10 m Geophone type: 28 Hz single Source spacing: 20 m Source type: VIBSIST 3000 Hit interval between hammer blows: 100–200 ms Sweeps per source point: 3–4 Nominal fold: 80 Recording instrument: SERCEL 428UL Sample rate: 1 ms Field low cut: Out Field high cut: 400 Hz Record length: 30 s Profile length: 12 km Source points: 542 Dates acquired: 10/6–15/6: 2011 This dataset contains processed data of the Orsa profile. Processing steps for this data set: 1: Read decoded VIBSIST data 2: Bulk static shift to zero time 3: Apply geometry Processed seismic data stored as one file for the enitre seismic profile, according to SEG technical standard SEG-Y revision 1 (SEG-Y_r1.0, 2002); https://seg.org/Publications/SEG-Technical-Standards År 2011 gjordes två nya reflexionsseismiska undersökningar över västra delen av Siljansringen, Mora och Orsa profilerna. Siljansringen är en struktur som uppkom för ca 377 miljoner sedan genom ett meteoritnedslag. Orsa profilen (detta dataset) är ca 12 km lång och visar de geologiska strukturerna till ca 3 km djup. Geologin består av flera hundra meter med siluriska klastiska sedimentära bergarter och ordoviciska karbonatbergarter som vilar på paleoproterozoiskt kristallint urberg. En mer detaljerad beskrivning av datasetet som inkluderar alla viktiga parametrar är tillgängligt på den engelska katalogsidan: https://snd.gu.se/en/catalogue/study/SND1042. Bearbetad data för Orsa-profilen. Mer information på den engelska katalogsidan: https://snd.gu.se/en/catalogue/study/SND1042 2011-06-10 2011-06-15 Sweden Sverige Numeric Text Geospatial Other Access to data through SND. Data are freely accessible. Åtkomst till data via SND. Data är fritt tillgängliga. openAccess Juhlin, Christopher, Erik Sturkell, Jan Ove R. Ebbestad, Oliver Lehnert, Anette E. S. Högström, and Guido Meinhold. 2012. “A New Interpretation of the Sedimentary Cover in the Western Siljan Ring Area, Central Sweden, Based on Seismic Data.” Tectonophysics 580 (December):88-99. https://doi.org/10.1016/j.tecto.2012.08.040. Juhlin, Christopher, Erik Sturkell, Jan Ove R. Ebbestad, Oliver Lehnert, Anette E. S. Högström, and Guido Meinhold. 2012. “A New Interpretation of the Sedimentary Cover in the Western Siljan Ring Area, Central Sweden, Based on Seismic Data.” Tectonophysics 580 (December):88-99. https://doi.org/10.1016/j.tecto.2012.08.040. 10.1016/j.tecto.2012.08.040 2012