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| Titel |
Investigation of long period crustal deformation on the inactive branch of the North Anatolian Fault Zone |
| VerfasserIn |
G. Akay, H. Ozener |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 9, no. 3 ; Nr. 9, no. 3 (2009-05-05), S.663-671 |
| Datensatznummer |
250006776
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| Publikation (Nr.) |
 copernicus.org/nhess-9-663-2009.pdf |
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| Zusammenfassung |
The western part of North Anatolian Fault (NAF) bifurcates around Mudurnu
into two fault segments: northern and southern branch. The latter bifurcates
again at west of Pamukova and creates middle strand. This study aimed to
analyze crustal movement along the middle strand near Iznik which is
considered as inactive fault. We focused on a microgeodetic network called
General Command of Mapping-Istanbul Technical University (GCM-ITU) network
around this segment. In order to obtain displacement values, five campaigns
performed on the network which were used in the study. The displacements of
the stations were estimated relative to the fixed stations located at the
south of the network. The coordinates of the stations were calculated from
the triangulation measurements realized in 1941 and 1963, trilateration
measurements in 1981, and GPS campaigns in 2004 and 2007. Then, mean
displacements of the network ranging between 7 mm/yr and 18 mm/yr were
obtained for these years.
In the second part of the study, the GPS data were re-processed by adding
three stations from Marmara Continuous GPS Network (MAGNET). Details of
MAGNET can be found Ergintav et al. (2002). Estimated displacements were
ranging between 3 mm/yr and 13 mm/yr for 2004 and 2007. TUBI station of IGS
network was taken as stable. |
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