HR: 1400h
AN: GS23B-05    [Abstracts]
TI: Improving Geological Map of Soil Covered Area in Yogyakarta Region by Using FTIR and ASTER Image, Response to 2006 Earthquake
AU: * Barianto, D H
EM: didit_h@mine.kyushu-u.ac.jp
AF: Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
AU: * Barianto, D H
EM: didit_h@mine.kyushu-u.ac.jp
AF: Gadjah Mada University, Jl Grafika no 2, Yogyakarta, 55281, Indonesia
AU: Setijadji, L D
EM: lucas@mine.kyushu-u.ac.jp
AF: Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
AU: Setijadji, L D
EM: lucas@mine.kyushu-u.ac.jp
AF: Gadjah Mada University, Jl Grafika no 2, Yogyakarta, 55281, Indonesia
AU: Watanabe, K
EM: wat@mine.kyushu-u.ac.jp
AF: Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
AB: Yogyakarta region is located in the southeastern part of Central Java, Indonesia, that mostly covered by product of Quaternary deposits of Merapi volcano and was entirely mapped as single geologic unit (i.e. the Young Volcanic Deposits of Merapi Volcano). This simplicity will be affected for making detail hazard map regarding to last divesting earthquake. The problem for tropical region with highly weathered is make soil covered almost the entire surface and difficult to distinguish kinds of parent/ origin rock. However the research on soil in relation to the spread of lithology in this region is rarely conducted. Geologists are challenged to improve the existing geological map by using the recent data and methods especially in soil covered area in this case by using FTIR and ASTER image. At least 50 samples of various rocks and soils were taken for FTIR which is combining with ASTER Image to create new border of geological units for improving Geological Map especially on Quaternary unit. Soil distribution related to parent rock can be recognize such as Tertiary units of tuffaceous limestone of Sentolo Fm, volcanic breccia of Nglanggran Fm, diorite from Godean and Gendol, more detailed of Quaternary Merapi's sediments and new unit as black clay from Gantiwarno which all have different physical properties. Each soils distribution and border is delineated by using satellite image from ASTER. Hopefully this research will be able to support other research which is need more accurate sedimentary unit border in Yogyakarta region.
DE: 5134 Thermal properties
SC: Geochemical Society [GS]
MN: 2007 Joint Assembly