Journal Paper

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Journal: GEOGRAPHIC SPACE | Year:1391 | Volume:12 | Issue:39 | Start Page:17 | End Page:35

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Title

LANDSLIDE HAZARD ZONING IN SOFI- CHAY BASIN (MARAGEH) BY ANBALAGAN METHOD

Pages

 Start Page 17 | End Page 35

Abstract

 The Sofi-Chay Basin with 310 km2 areas has located in south of east Azerbaijan province and north of Maraghe city. In this region annually many LANDSLIDEs occur and cause more damages for setelment, roads, agriculture and economy; therefore main reason for study of this region is selected. LANDSLIDE occurrences in this basin accumulate more sediment behind Allavian Dam. We have applied Geographical Information System and Anbalagan models in research. In this work, each factor affected LANDSLIDE occurrence such as geological structure, lithological structure, lithology, relative height. Slope, land use and underground water are mapped. In next step slope stability maps were obtained from adding up each unit weight. We overlaid lithology maps with slope instability map. This work showed that major LANDSLIDEs have occurred in quaternary deposits and contact point of Andsite and clays or lahars pomice. Consequently, study area was classified in 5 groups: very high hazardous, high hazardous, medium hazardous, low hazardous, free of hazards. Hazard ZONING map showed that, 19 present of area is in no-hazard zone.

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