dc.contributor.author | Olesen, Odleiv | |
dc.contributor.author | Skogseth, Terje | |
dc.contributor.author | Olsen, Lars | |
dc.contributor.author | Karlsen, Tor Arne | |
dc.contributor.author | Henkel, Herbert | |
dc.contributor.author | Gjelle, Svein | |
dc.coverage.spatial | 18272 Nesna | |
dc.coverage.spatial | 20274 Storforshei | |
dc.coverage.spatial | 19274 Sjona | |
dc.coverage.spatial | 19271 Mo i Rana | |
dc.date.accessioned | 2020-07-15T08:34:40Z | |
dc.date.available | 2020-07-15T08:34:40Z | |
dc.date.issued | 1994 | |
dc.identifier.issn | 0800-3416 | |
dc.identifier.uri | https://hdl.handle.net/11250/2666277 | |
dc.description.abstract | The Ranafjorden area in northern Norway is a region of increased seismicity andanomalous land uplift. There is evidence for recent movements in the bedrock;1) A total of 0.89 m uplift of a bladder wrack mark from 1894 to 1990 inHemnesberget; 2) Anomalous low uplift of the islands of Hugla and Tomma in theouter Ranafjorden area (0,0 0.06 and 0.07 m from 1894 to 1990 compared to 0.25-0.30 m in the area to the north and the south); 3) Associated with the 1819magnitude 5.8-6.2 earthquake in the Ranafjorden area, an uplift of a shallowsea floor above sea level during an aftershock was reported in the bay Ut-skarpen. During the main earthquake a major land slide occurred at the samelocation. This earthquake is the largest North European near-shore earthquakerecorded in historical time; 4) An uplift of approximately 1 metre of a farm-house in the 1870's at Båsmoen. The observation has been made relative to thetwo neighbouring mountains Snøfjellet and Høgtuva. 5) Approximately 0.5 muplift of a boathouse in the bay Straumbotn during the last 50 years.There are, consequently, indications of recent faulting in the Ranafjorden areaIt is, however, difficult to find conclusive evidence for postglacial andpresent-day movements along specific faults. We have therefore establisheda Global Positioning System (GPS) network designed to measure the activegeological strain in the area. | |
dc.language.iso | eng | |
dc.relation.ispartofseries | NGU-Rapport (94.073) | |
dc.rights | Navngivelse 4.0 Internasjonal | |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | |
dc.subject | HOLOCEN | |
dc.subject | SEISMOLOGI | |
dc.subject | LANDHEVNING | |
dc.subject | KVARTÆRGEOLOGI | |
dc.subject | BERGGRUNNSGEOLOGI | |
dc.subject | FORKASTNING | |
dc.subject | FOSSIL | |
dc.title | Neotectonic studies in the Ranafjorden area, northern Norway. | |
dc.type | Report | |
dc.description.localcode | 34200 | |
dc.source.pagenumber | 42 | |