Scholarly record
EVALUATION OF MICROGRAVITY AND GPS/GNSS DATA TOGETHER BY THE NETWORK SYSTEM AND A CASE STUDY IN IZMIR (WESTERN TURKEY)
Abstract
The monitoring of gravity changes in a region enables the investigation of regional structural elements depending upon the changes in mass compensation. Especially the microgravity method, which is preferred in recent years, yields good results from different part of the world. With the addition of GPS/GNSS monitoring to microgravity studies, the behavior of a region both in the lateral and vertical directions can be estimated. Besides, the main fault system and the mechanical links can be determined owing to this study. The mass changes within the crust in vertical direction are evaluated with the help of microgravity method while the lateral movements of the same blocks are evaluated by GPS/GNSS. Hence, by evalauating GPS/GNSS together with the network system, tectonical deformation can be illustrated in detail. The objective of our study is to solve the fault mechanisms that would pose a threat and to define the kinematic structure in space and time. In order to realize this activity, large-scale microgravity and GPS/GNSS network system measurements are achieved in western Turkey which has high tectonic activity by The Scientific and Technological Research Council of Turkey (T\"UBД°TAK) Marmara Research Centre. Besides, another stud within the T\"UBД°TAK Project numbered 108Y285 that is carried out in the south part of Izmir at a smaller scale will be introduced. The main purpose of this small scale activty is to focus to fault systems in the high populated areas. As a result, the interpretation of GPS/GNSS together with the microgravity \& GPS/GNSS network system will make it possible to determine the factors governing the active tectonism in southern Izmir which is included within the Aegean extending system.
Publication details
References9
Sengòr, A.M.C. , Görür, N.& Saroglu, F., 1985. Strike-slip faulting and related basin formation in zones of tectonic escape: Turkey as a case study. In: Biddle, ?. and Christie-Blick, N. (eds), Strike-slip Deformation, Basin Formation and Sedimentation. Society of Economic Paleontologists and Mineralogists, Special Publications 37, 227264.
Reilinger, R.E., McClusky, S.C., Oral, M.B., King, W. & Toksöz, M.N. 1997. Global Positioning, System measurements of present-day crustal movements in the ArabianAfrica-Eurasia plate collision zone, J. Geophys. Res., 102, 9983-9999.
Bozkurt, E. & Park, R.G., 1994. Southern Menderes Massif: an incipient metamorphic core complex in western Anatolia, Turkey. J Geol Soc Lond 151, 213-216
Seyitoglu, G. & Scott, B.C., 1992. Late Cenozoic volcanic evolution of the northeastern Aegean region. J. Volcan. Geotherm. Res. 54, 157-176.
Koçyigit, A & Yusufoglu, H, Bozkurt E, 1999. Evidence from the Gediz graben for episodic two-stage extension in western Turkey. J Geol Soc Lond 156:605-616.
Yilmaz, Y., Gene, C, Gürer, F., Bozcu, M., Yilmaz, K., Karacik, Z.,Altunkaynak, S. & Elmas, ?., 2000. When did the Western Anatolian grabens begin to develop? In: Bozkurt, E., Winchester, JA., piper JDA. (eds) Tectonics and magmatism in Turkey and the surrounding area. Geol Soc Lond Spec Pubi., 173: 131-162.
Sözbilir, ?., ínci, U., Erkul, F. & Sümer, Ö., 2003. An Active Intermitten transform zone accommodating N-S Extension in Western Anatolia and its relation to the North Anatolian Fault System, International Workshop on the North Anatolian, East Anatolian and Dead Sea Fault Systems: Recent Progress in Tectonics and Paleoseismology, and Field Training Course in Paleoseismology, 31 Augst to 12 September 2003, Poster Session P:2/2, Ankara TURKEY.
Dogan, U., Ergintav, S., Demirel, H., Çakmak, R. & Özener H., 2003. Estimation of the time-dependent crustal movements of the Izmit Earthquake. J.Geodyn. 36, 615-632.
Bonforte, ?., Carbone, D., Greco, F. & Palano, M., 2007. Intrusive mechanism of the 2002 NE-rift eruption at Mt Etna (Italy) modelled using GPS and gravity data, Geophys. J. Int. (2007) 169, 339-347
View or Download full articleAccess options
SWS access login
Login as SWS Scientific CommitteeLogin as SWS Scientific PartnerLogin as SWS AuthorAuthors and approved SWS contributors will read and export their own linked papers after identity matching by SWS profile, email and SGEM GlobalID.
For librarian assistance: [email protected]
Purchase Instant Access
- Article can be downloaded after successful payment.
- Article may be used according to SWS library access terms.
- Article cannot be redistributed.