International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B-YF. Istanbul 2004 
Slips 
Slips may occur because of the decrease of the sector resistance 
by one or more surface. This surface can be seen or predicted. 
Slips are separated two classes according to the mechanical 
properties. In the first one; there is no big changing on the 
moving mass. This group is called as rotating slips. Collapsing 
of the surfaces are the main kinds of rotating slips. In the second 
one; there are big changing on the moving mass or arise by to 
many small pieces. Sliding of the rocks and trashes are the main 
kinds of the second one. 
Flows 
Volcanic eruptions and big rock landslides are mainly include 
dry pieces. These flows called as flows of rock pieces. Moist 
flows mostly occur in riverbeds and follow it. Rain dose affects 
these types of flows. Solid matters (soil, rocks, stones, trees, 
branches, bushes) constitute the 60-70 95 of the weight. They 
stop by leaving their load to a leaning valley or floor of a 
mountain. 
Complex Landslides 
Most landslides display different movements during their 
progress. Then most landslides are complex. Complex 
landslides can be classified because they indicate the main 
characteristic type. Controlling the landslides and determining 
the most useful knowledge to protection form the landslides are 
the main reasons for classifying. (Atalay and Bekaroglu, 1973) 
4. STUDY AREA; SEBINKARAHISAR 
Sebinkarahisar is a township belongs to Giresun province. The 
centre of township is 38? 25' N and 40° 17° E. The settlement is 
on the valley between Meryem Mountain (2008m) and Kale 
Hill (1568m). The altitude of the township is 1350m. There are 
too many streams and little lakes located in the region. 
Climate of the study area shows warmth and terrestrial 
characteristics, Anatolian climate is dominant. On the other 
hand; a crossing climate to Black Sea climate is dominant about 
evaporation, moisture and raining conditions. Approximate 
yearly temperature is 8,9"C and amount of rain is 572,2 mm. 
The main wind direction is north-east and second one is south- 
west. 
On the north side of the township there are half-moisture and 
dry but spoiled forests with xerophyte. The other areas are 
covered by bushes and grassy places. However, there are some 
tree groups on the south side. (fbe.ktu.edu.tr) 
5. TOPOGRAPHIC AND GEOLOGICAL MAPS 
As seen in figure 1, 1/25000 scaled standard topographic map 
(H40b3) of the region is geographically referenced by 
calculating and entering the Hayford-50 coordinates of the 
intersection points of the coordinate network (148 points). 
Contours, settlements, grassy places, lakes and roads are 
digitised as blocks by the Topol software. 
Because Topol software does not support third dimension, 
contours are exported in dxf format and in AutoCad software 
the third dimensions, height information, are entered. 
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Settlements, grassy places, lakes and roads, also exported in dxf 
format and by QuickSurf module of AutoCad software their 
height information is processed. QuickSurf module uses 
extrapolation method. 
  
Figure 1. Standard Topographic Map 
The standard geological.map (H40b3) (figure 2) of the region is 
scanned as six parts. All parts separately geographically 
referenced by calculating and entering the Hayford-50 
coordinate of the intersection points of the coordinate network. 
These parts are combined by Topol software. 5 different 
geological formations of the region digitised as blocks by Topol 
software. These are: 
= Qa : Alluvium, 
= Te: Andesite Basalt, 
" Tk: Conglomerate, Sandystone, Siltstone, Mudstone, 
= Ty : Tufa, Sandy Limestone, Conglomerate, Basal, 
Andesite, Aglomerate, 
= Krf: Morn, Micritic Limesstone, Andesite, Basalt, 
Sandystone, Aglomerate, Tufa 
All digitised blocks are used as different layers and entered to 
ArcView software. 
  
  
Figure 2. Standard Geological Map