GEOLOGY AND LANDSLIDE SUSCEPTIBILITY ANALYTIC USING ANALYTIC HIERARCHY PROCESS METHODE IN KADUPANDAK AND SURROUNDING AREA, CIAMIS REGENCY, WEST JAVA

• Main Author: ABDURRAHMAN (NIM : 12010097), SAAD
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/24159
• Institution: Institut Teknologi Bandung

Geological mapping and landslide susceptibility analytic were conducted in Kadupandak, Ciamis Regency, West Java, on purpose to determine the geological order and spreading of landslide susceptibility level by using Analytic Hierarchy Process (AHP) methode. Geomorphology unit of research area was divided into two units, i.e. Syncline Valley Unit within young to mature geomorphic stage and Breccia Hills Unit within young <br /> <br /> <br /> <br /> geomorphic stage. Geological history of research area began in Early Pliocene when Sandstone Unit deposits on transitional sea, and then after Late Pliocene, Sandstonen Unit was deformation formed Cibogo Syncline. After that, Andesite Unit formed on Pleistocene. On Holocene, Breccia Unit was deposited on land environment. Finally,exogenous forces such as weathering, erosion, and deposition of Alluvial Unit happen until now. Susceptibility landslide analytic produced a map that shows four landslide susceptibility <br /> <br /> <br /> <br /> level zones, i.e. 1) High Susceptibility Zone which has 15% area spreading in Ontonghandap, Masa, Karanganyar, Cibogo, and Cikopeng, 2) Medium Susceptibility Zone which has 28% area spreading in Karangsari, Balegede, Panyingkiran, Tarikolot, and Pasisian, 3) Low Susceptibility Zone which has 33% area spreading in <br /> <br /> <br /> <br /> Kiarakoneng, Beber, Babakan, Bandasari, and Kaso, and 4) Very Low SusceptibilityZone which has 24% area in Sukamandi, Walahar Satu, Walahar Dua, and Mekarjaya.