onr:"swepub:oai:DiVA.org:ltu-7264"
Search: onr:"swepub:oai:DiVA.org:ltu-7264" > Crustal evolution o...
- 1 of 1
- Previous record
- Next record
- To hitlist
| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 04104naa a2200349 4500 | |
| 001 | oai:DiVA.org:ltu-7264 | |
| 003 | SwePub | |
| 008 | 160929s1989 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-72642 URI |
| 024 | 7 | a https://doi.org/10.1016/0040-1951(89)90355-72 DOI |
| 040 | a (SwePub)ltu | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a ref2 swepub-contenttype |
| 072 | 7 | a art2 swepub-publicationtype |
| 100 | 1 | a Pesonen, L. J.u Geological Survey of Finland4 aut |
| 245 | 1 0 | a Crustal evolution of Fennoscandia :b palaeomagnetic constraints |
| 264 | 1 | b Elsevier BV,c 1989 |
| 338 | a print2 rdacarrier | |
| 500 | a Godkänd; 1989; 20070316 (ysko) | |
| 520 | a Palaeomagnetic poles from Fennoscandia, ranging in age from Archaean to Tertiary, are compiled and graded using a modified Briden-Duff classification scale. An new "filtering" technique is applied to select only the most reliable poles for analysis. The filtering takes into account the following information: 1. (1) source block of rock unit,2. (2) age of rock,3. (3) age of magnetization component,4. (4) scatter of palaeomagnetic directions,5. (5) information from multicomponent analysis of natural remanent magnetization (NRM),6. (6) whether the pole considered belongs to a cluster or subcluster of poles,7. (7) magnetic polarity and8. (8) the author's original assignment of results.Data are still insufficient for the drawing of separate Apparent Polar Wander Paths (APWP) for different blocks or cratons of Fennoscandia. Treating Fennoscandia as a single plate, a new APWP from Archaean to Permian is constructed. From the five previously drawn APWP loops (or "hairpins"), only one, the Jatulian loop (2200-2000 Ma), disappears in filtering. The loops during 1925-1700 Ma and during 1100-800 Ma ago are linked to Svecofennian and Sveconorwegian orogenies, respectively. Palaeomagnetic data support the concept that these orogenies took place episodically; three distinct orogenic pulses (early, middle and late) can be distinguished in the cluster plots of palaeopoles. The drift history of Fennoscandia from Archaean to Permian is presented. During most of geological history, Fennoscandia has occupied low to moderate latitudes and undergone considerable latitudinal shifts and rotations. The Svecofennian and Sveconorwegian orogenies have different kinematic characteristics. During the Svecofennian orogeny, Fennoscandia drifted slowly while rotating a large amount in an anticlockwise sense. During the Sveconorwegian orogeny, it drifted rapidly and rotated first clockwise and then anticlockwise. The most striking feature in the drift velocity curves is, however, the pronounced maxima in the latitudinal drift and rotation rates (˜ 9 cm/yr and ˜ 0.8°/Ma, respectively) during the late Subjotnian-Jotnian anorogenic magmatism and rifting phase (˜1450-1250 Ma ago), possibly reflecting the passage of Fennoscandia across a thermal upwelling (hotspot) at equatorial latitudes. The use of palaeomagnetism in delineating and dating movements between blocks is demonstrated with three examples from the POLAR Profile area, the northernmost section of the European Geotraverse. | |
| 650 | 7 | a NATURVETENSKAPx Geovetenskap och miljövetenskapx Geofysik0 (SwePub)105052 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Geophysics0 (SwePub)105052 hsv//eng |
| 653 | a Applied Geophysics | |
| 653 | a Tillämpad geofysik | |
| 700 | 1 | a Torsvik, T. H.u Department of Earth Sciences, University of Oxford4 aut |
| 700 | 1 | a Elming, Sten-åkeu Luleå tekniska universitet,Geovetenskap och miljöteknik4 aut0 (Swepub:ltu)sael |
| 700 | 1 | a Bylund, G.u Department of Geology, University of Lund4 aut |
| 710 | 2 | a Geological Survey of Finlandb Department of Earth Sciences, University of Oxford4 org |
| 773 | 0 | t Tectonophysicsd : Elsevier BVg 162:1-2, s. 27-49q 162:1-2<27-49x 0040-1951x 1879-3266 |
| 856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-7264 |
| 856 | 4 8 | u https://doi.org/10.1016/0040-1951(89)90355-7 |
Find in a library
- Tectonophysics (Search for host publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Pesonen, L. J.
- Torsvik, T. H.
- Elming, Sten-åke
- Bylund, G.
- About the subject
-
- NATURAL SCIENCES
- NATURAL SCIENCES
- and Earth and Relate ...
- and Geophysics
- Articles in the publication
- Tectonophysics
- By the university
- Luleå University of Technology
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
