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Upper lithospheric structure in the central Fennoscandian shield: Constraints from P- and S-wave velocity models and VP/VS ratio distribution of the BALTIC wide-angle seismic profile
| Content Provider | Scilit |
|---|---|
| Author | Janik, Tomasz |
| Copyright Year | 2010 |
| Description | The paper presents an analysis of the crust and upper mantle structure in the central Fennoscandian shield based on new P- and S-wave 2D velocity models of the BALTIC wide-angle reflection and refraction profiles. Using reprocessing of the old data, new P- and S-wave velocity models and V P /V S ratio distribution were developed. Moving from SW to NE, the thickness of the crust varies strongly, from ∼36 km to extremely thick, 58–64 km, crossing Wiborg rapakivi massif, Saimaa and Outokumpu areas, and Eastern Finland complex. Based on the lateral variations of V P , V P /V S and thickness of the crust, three main blocks of the crust and upper mantle were distinguished from SW to NE: southwestern, associated with Wiborg rapakivi massif; the central, having the highest thickness of the crust; and the northeastern, not well documented, with Archaean basement. |
| Related Links | http://link.springer.com/content/pdf/10.2478/s11600-010-0002-0.pdf |
| ISSN | 18956572 |
| e-ISSN | 18957455 |
| DOI | 10.2478/s11600-010-0002-0 |
| Journal | Acta Geophysica |
| Issue Number | 4 |
| Volume Number | 58 |
| Language | English |
| Publisher | Walter de Gruyter GmbH |
| Publisher Date | 2010-02-08 |
| Access Restriction | Open |
| Subject Keyword | Journal: Acta Geophysica Acta Geophysica Geochemistry and Geophysics Upper Mantle |
| Content Type | Text |
| Resource Type | Article |
| Subject | Geophysics |
