Convention Bandung 2004 (CB2004) The 33^rd Annual Convention & Exhibition 2004

Indonesian Association of Geologist Horizon Hotel, 29-30 Nov, 1 Dec 2004, Bandung

THE GEOLOGY OF LADIA GALASKA ROAD PROVINCE NANGGROE ACEH DARUSSALAM GEOLOGI RUAS JALAN LADIA GALASKA PROPINSI NANGGROE ACEH
DARUSSALAM

Eko Seobowo, Adrin Tohari dan Hery Haryono

Pusat Penelitian Geoteknologi - LIPI
Jl. Sangkuriang, Kompleks LIPI, Bandung.40135
Tlp. 022-2503654, 2507771, Fax. 022-2504593

Abstract

In the development plan of a new and old road infrastructures, the understanding of lithology distribution aspect and fault structures are the most crucial factors on the road establishment. Geological aspects is the first thing to predict the geological hazard to prevent the negative impact on the environment, need to be evaluate.

According to the geological interpretation and field assesment along the lane of Ladia Galaska road are metamorf (sciss, phillite, quarzite) dominated and some sediment (intercalation sandstone-clay), intrusion rock (diorite) and vulcanic sediments. Presented fault structure along the road of Ladia Galaska is related to the active “Sesar Besar Sumatra” (west part) and some earth quake were occured in Blangkejeren (1997) as well. The fault structures orientation along the road are crossed and pararelled. The road lanes of Lhok Seumot – Beutong Ateuh – Ceulala and Uring – Pepela are crossed by the fault which has a local landslide problem. The road which are pararelled to the Takengon – Isaq, Ise-ise – Blangkajeren dan Pinding – Lokop fault has a tendency to the local landslide especially on the lane of the road. This research result can be use for the classification of the geological hazard and to prevent the unstable condition of the road on the future.