| 2004 International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B7. Istanbul 2004
e was process, the resultant image reflects more topographic different directions that also known as horst and graben system
is features; however the discrimination of the rock types is lost. or basin and range topography. Í
ol the
ts and si =
daries WEN # EX ges! =
nan et » 3 E CE == À Za 2 I. eee
iz) rift | gl eer E V EZ S % :
g this | M CE SM LS
se the | quu f A P Ru APA 2 5T
se | TE M ge ve. Figure 2 The :
gn | : Ie lineament map of
uch as | 3 = > MOS the study area. —
Lo = Mo vr (Abbreviations of
| 9 , ATs = x the city centres:
- E x. od SEE = * T BAL: Balikesir,
| ACTES ur HRS UE cb KUT: Kütahya,
visual | Qu v v Zi a Vs Xe Qu MAN. Me
MEN | : Y e À: Alasehir,
KC | AGEAN SEA " SIN: Sindirgi,
needs | SIM: Simav,
Viet à | ; BER: Bergama,
nation MEL 571: EZ ;
RE [ DOM: Domanig,
pared [aos : SEF: Seferihisar,
SN | CIV: Civril.)
kward »
mages | Pam
I
30* E
ed the The lineament map produced by the LANDSAT-TM image The fi x i ^ these ^ 3 ;
is tone Di age re first overall presentation of these horsts and grabens
aues was updated in proportion 30 percent using the anaglyph structurally and the naming of the most of them have been done
| and image above. Besides, there is not an important difference in by Kocyigit (1984). A complete study on the active faults of
oh as the lineament maps produced by the two base-maps, the Turkey has been done first time by Saroëlu et al. (1987) and
of the anaglyph images and ASTER stereoscopic images. However, mapped some of the main active faults. There are many
uch as the anaglyph image produced by the DEM that has. 10 m different VIEWS about the initiation time and the origin of the
raight SON; eral obtained more lineaments in proportion 25 extensional tectonics in the region (Kocyigit et al. 1999, 2000;
] and per cent in 1:25 000 map scale. Kocyigit and Beyhan 1998; Kocyigit and Ozacar 2003; Dewey
lithe | ; J & Sengór 1979; Sengór, 1987; Le Pichon & Angelier 1979;
points The lineament map of the western part of the study ares Meulenkamp et al. 1988; Seyitoglu & Scott 1992; Yilmaz et al.
montis studied in scale 1:100 000, the other area studied in scale 2000). There are also discussions about the neotectonic period
ent of 1:200 000. The reason of that it was focused to this area at of the extension. Some of them will be discussed in the next
Liver first due to the more complex structure of that area. section.
es, hot
slides, 3 THESIMPLIFIED REGIONAL GEOLOGY 4. DISCUSSION AND CONCLUSION
cement The main parts of the base geological units of the study area The using of anaglyph image produced from LANDSAT-TM
are the Menderes Massive (MM), the Kazdag Massif (KM), image in the visual interpretation of the identification of the
Izmir-Ankara-Erzincan suture zone, and the granitic, volcanic structural elements and the geomorphic characteristic has been
and sedimentary cover rocks of the Neogene and Quaternary found the most suitable method in this study. Contour interval
TM age. Izmir-Ankara-Erzincan suture zone continued from Late and quality of DEM is diagnostic in quantity of extracted
SL Cretaceous to Early Tertiary period passes through the central elements. The using of the stereoscopic images of the ASTER
EM of part of the study area approximately bounding the Menderes data and the multi-angle shaded images produced by the DEM
t Massive (MM). The suture zone consists of oceanic crust and countered 10 m interval gives also good results.
e cover sediments, and the metamorphic rocks related to the ;
of subduction period along the suture. MM and similar the The lineament / fault map of the study area is represented in
oclated Kazdag Massif consists of a Paleozoic crystalline shist and Figure 2. The main-faults of the study area determined and
[ue and gneiss basement and covered by the sedimentary and compared with the seismic activity of the arca (Figure 3). The
dared metamorphic rocks of Mesozoic and Cenozoic eras. Neogene seismic activity around the young grabens within the MM and
LS rocks consisted of the sandstone, conglomerate, clay, lignite, in the western part is quite high. According to the fault map, it
pm mar], limestone, gravel and volcanic rocks that have been is striking that the active faults forming graben structures show
m 4 deposited in terrestrial environments mainly in rift valleys and three division on three dominant basement rocks (Figure 4); (1)
of the intruded by granitic rocks since Late Oligocene-Early the NE-SW and NW-SE trends in the eastern side of the study
” un Miocene time. Quaternary consists of volcanic, lacustrine-fan- area on the mainly platform type of carbonates, (2) the ESE-
1 the alluvial deposits accumulated in grabens, lakes, river terraces WNW trends in the middle part on the metamorfic rocks of the
and plains. The extensional period of western Anatolia is
characterized by forming of several rift valleys with the
MM and subduction zone, and (3) the different trends on the
complex structure consists of granitic-volcanic-metamorfic
