dc.contributor.author | Sturt, Brian A. | |
dc.contributor.author | Sundvoll, Bjørn | |
dc.contributor.author | Askvik, Helge | |
dc.coverage.spatial | 13212 Kristiansund | |
dc.date.accessioned | 2020-08-26T09:02:18Z | |
dc.date.available | 2020-08-26T09:02:18Z | |
dc.date.issued | 1997 | |
dc.identifier.uri | https://hdl.handle.net/11250/2674093 | |
dc.description.abstract | A Rb-Sr whole-rock isochron from a quartz-syenite dyke at Stabben, Nordmøre, has provided an age of 263 +- 6Ma. This could be taken to indicate a crystallisation age for the dyke, i.e. Early Permian. The age, however, does not conform with an earlier published age for a similar dyke on the nearby island of Tustna, or with a published Middle\/Late Carboniferous palaeomagnetic pole for the Stabben dyke. It may be that the isochron is dating hydrothermal alteration of the dyke. The presence of such dykes with a deep mantle magmatic source, along the Møre-Trøndelag Fault Zone, emphasies the fundamental nature of the fault and indicates that a period of tensional conditions pertained during the time of emplacement of the dykes. | |
dc.language.iso | eng | |
dc.relation.ispartofseries | NGU Bulletin (432) | |
dc.rights | Navngivelse 4.0 Internasjonal | |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | |
dc.subject | GANGBERGART | |
dc.subject | GANGBERGART | |
dc.subject | OMVANDLING | |
dc.title | A probable Permian hydrothermal alteration age for a quartz syenite dyke from Stabben, Nordmøre. | |
dc.type | Journal article | |
dc.description.localcode | 49120 | |
dc.source.pagenumber | 71-75 | |