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High Resolution Reflection Seismic Profiling Over the Tjellefonna Fault in the Møre-trøndelag Fault Complex, Norway : Volume 4, Issue 1 (03/02/2012)

By Lundberg, E.

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Book Id: WPLBN0004021840
Format Type: PDF Article :
File Size: Pages 38
Reproduction Date: 2015

Title: High Resolution Reflection Seismic Profiling Over the Tjellefonna Fault in the Møre-trøndelag Fault Complex, Norway : Volume 4, Issue 1 (03/02/2012)  
Author: Lundberg, E.
Volume: Vol. 4, Issue 1
Language: English
Subject: Science, Solid, Earth
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2012
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Juhlin, C., Nasuti, A., & Lundberg, E. (2012). High Resolution Reflection Seismic Profiling Over the Tjellefonna Fault in the Møre-trøndelag Fault Complex, Norway : Volume 4, Issue 1 (03/02/2012). Retrieved from http://worldebookfair.com/


Description
Description: Department of Earth Sciences, Uppsala University, Villavägen 16, 752 36 Uppsala, Sweden. The Møre-Trøndelag Fault Complex (MTFC) is one of the most prominent fault zones of Norway, both onshore and offshore. In spite of its importance, very little is known of the deeper structure of the individual fault segments comprising the fault complex. Most seismic lines have been recorded offshore or focused on deeper structures. This paper presents results from two reflection seismic profiles, located on each side of the Tingvollfjord, acquired over the Tjellefonna fault in the south-eastern part of the MTFC. Possible kilometer scale vertical offsets reflecting, large scale north-west dipping normal faulting separating the high topography to the south-east from lower topography to the north-west have been proposed for the Tjellefonna fault. In this study, however, the Tjellefonna fault is interpreted to dip approximately 50–60° towards the south-east to depths of at least 1.4 km. Travel-time modeling of reflections associated with the fault was used to establish the geometry of the fault structure at depth and detailed analysis of first P-wave arrivals in shot-gathers together with resistivity profiles were used to define the near surface geometry of the fault zone. A continuation of the structure on the north-eastern side of the Tingvollfjord is suggested by correlation of an in strike direction P-S converted reflection (generated by a fracture zone) seen on the reflection data from that side of the Tingvollfjord. The reflection seismic data correlate well with resistivity profiles and recently published near surface geophysical data. A highly reflective package forming a gentle antiform structure was also identified on both seismic profiles. The structure may be an important boundary within the gneissic basement rocks of the Western Gneiss Region. The Fold Hinge Line is parallel with the Tjellefonna fault trace while the topographic lineament diverges, following secondary fracture zones towards north-east.

Summary
High resolution reflection seismic profiling over the Tjellefonna fault in the Møre-Trøndelag Fault Complex, Norway

Excerpt
Andersen, T. B. and Jamtveit, B.: Uplift of deep crust during orogenic extensional collapse: a model based on field studies in the Sogn-Sunnfjord region, W. Norway, Tectonics, 9, 1097–1111, 1990.; Austrheim, H., Corfu, F., Bryhni, I., and Andersen, T. B.: The Proterozoic Hustad igneous complex: a low strain enclave with a key to the history of the Western Gneiss Region of Norway , Precambrian Res., 120, 149–175, 2003.; Ayarza, P., Juhlin, C., Brown, D., Beckholmen, M., Kimbell, G., Pechnig, R., Pevzner, L., Pevzner, R., Ayala, C., Bliznetsov, M., Glushkov, A., and Rybalka, A.: Integrated geological and geophysical studies in the SG4 borehole area, Tagil Volcanic Arc, Middle Urals: Location of seismic reflectors and source of the reflectivity, J. Geophys. Res. , 105, 21333–21352, 2000.; Biedermann, A. R.: Magnetic Properties of the Møre-Trøndelag Fault Complex, Msc Thesis, ETH Zürich, http://e-collection.library.ethz.ch/view/eth:1986, 2010.; Braathen, A., Nordgulen, Ø., Osmundsen, P. T., Andersen, T. B., Solli, A., and Roberts, D.: Devonian, orogen-parallel, opposed extension in the Central Norwegian Caledonides, Geology, 28, 615–618, 2000.; Mykkeltveit, S.: A Seismic Profile in Southern Norway, Pure Appl. Geophys., 118, 2, 1310–1325, 1980.; Brekke, H.: The tectonic evolution of the Norwegian Sea continental margin, with emphasis on the Vøring and Møre basins, in: Dynamics of the Norwegian Margin, edited by: NØTTVEDT, A., Geol. Soc. Lond. Spec. Publ., 167, 327–378, 2000.; Cosma, C. and Enescu, N.: Characterization of fractured rock in the vicinity of tunnels by the swept impact seismic technique, Int. J. Rock Mech. Min., 38, 815–821, 2001.; Dahlin, T.: 2D resistivity surveying for environmental and engineering applications, First Break, 14, 275–284, 1996.; Dehghannejad, M., Juhlin, C., Malehmir, A., Skyttä, P., and Weihed, P.: Reflection seismic imaging of the upper crust in the Kristineberg mining area, northern Sweden, J. Appl. Geophys., 71, 125–136, 2010.; Faleide, J. I., Kyrkjebø, R., Kjennerud, T., Gabrielsen, R. H., Jordt, H., Fanavoll, S., and Bjerke, M. D.: Tectonic impact on sedimentary processes during Cenozoic evolution of the northern North Sea and surrounding areas, Geol. Soc. Lond., Spec. Publ., 196, 235–269, 2002.; Gabrielsen, R. H., Odinsen, T., and Grunnaleite, I.: Structuring of the Northern Viking Graben and the Møre Basin; the influence of basement structural grain, and the particular role of the Møre-Trøndelag Fault Complex, Mar. Petrol. Geol., 16, 443–465, 1999.; Ganerød, G. V., Grøneng, G., Rønning, J. S., Dalsegg, E., Elvebakk, H., Tønnesen, J. F., Kveldsvik, V., Eiken, T., Blikra, L. H., and Braathen, A.: Geological model of the Åknes rockslide, western Norway, Eng. Geol., 102, 1–18, 2008.; Green, A. G. and Mair, J. A.: Subhorizontal fractures in a granitic pluton: Their detection and implications for radioactive waste disposal , Geophysics, 48, 1428–1449, 1983.; Grønlie, A. and Roberts, D.: Resurgent strike-slip duplex development along the Hitra-Snåsa and Verran Faults, Møre-Trøndelag Fault Zone, Central Norway , J. Struct. Geol., 11, 295–305, 1989.; Grunnaleite, I. and Gabrielsen, R. H.: Structure of the Møre Basin, mid-Norway continental margin, Tectonophysics, 252, 221–251, 1995.; Hacker, B. R., Andersen, T. B., Johnston, S., Kylander-Clark, A. R. C., Peterman, E. M., Walsh, E. O., and Young, D.: High-temperature deformation during continental-margin subduction & exhumation: The ultrahigh-pressure Western Gneiss Region of Norway, Tectonophysics, 480, 149–171, 2010.; Hurich C. A.: Kinematic evolution of the lower plate during intracontinental subduction: An example from the Scandinavian Caledonides, Tectonics, 15, 1248–1263, 1996.; Hurich, C. A. and Roberts, D.: A seismic reflection Profile from Stjørdalen to Outer Fosen, Central Norway: a note on the principal results, Norg. Geol. Unders. B., 433, 18–19

 

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