Geoscience Reference
In-Depth Information
According to the study of McClusky et al. (2000), the high rate of velocity
vectors especially in the Aegean Region is pointed out. Moreover, Reilinger et al.
(2006), mentioned the high rate of movement of western Anatolia according to the
Anatolian plate. Another recent study (Aktug and Kilicoglu, 2006) that covers an
area between latitudes 37°45′ and 39
00′ men-
tion the high rate of velocities especially near TF. The velocities from two different
studies can be seen in the Figure 6, where the black arrows indicates the residual ve-
locities obtained by differentiating ITRF2000 and Eurasia plate velocities by using
the following formula. On the other hand, red colored arrows indicate the Eurasia
fi xed velocity vectors. Figure 6 indicates an important deformation rate especially
around TF.
°
00′, and longitudes 26
°
00′ and 28
°
V
ITRF
2000
−
V
PLATE
V
r
=
In order to contribute these projects by performing large scale fault based deforma-
tion monitoring study, TF, and its vicinity was selected considering its high seismic
risk. Therefore, a reconnaissance was planned after the literature research in order to
investigate the fi eld and collect necessary information from local resources. Thus, this
reconnaissance to the region was performed, the information collected, evaluated, and
analyzed within this study. Moreover, fi rst order network design problems are quoted
to create a harmony between microgeodetic networks. Network stations are selected
from a large set of control points according to the suggestions mentioned in several
studies. These whole processes produced a microgeodetic network that is selected
from a huge set of information.
The network has an open end for future studies. In other words, there is a possibil-
ity of an extension for the network in order to monitor some additional faults. The TF
exists in the center of the region and is very near to the big metropolitan city, Izmir.
Thus the origin of the study is selected near this fault. Some researchers also mention
the high seismic risk of the region including TF (Ocakoglu et al., 2005; Zhu et al.,
2006). On the other hand, it is certain that, the area should be monitored by a larger
and dense network with continuously operating GPS stations. For further studies,
campaign based GPS observations are planned beginning from the current network
designed in this study and will extend to the west to the Karaburun Peninsula, and to
the east to the eastern Aegean region. According to the results achieved from some
researches (Akyol et al., 2006; Kaymakci, 2006; Zhu et al., 2006), there is a great seis-
mic risk through the transform faults to the east near Pamukkale-Denizli. However, in
this study, because of the topography related effects such as high mountains and the
small rate vertical deformation make it nearly impossible to study with GPS or precise
leveling techniques. For the reasons mentioned above, the network established to the
area that is covering the TF.
