#TITLE_ALTERNATIVE#

• Main Author: NURUL HIDAYAH SAIFUDIN (NIM : 12012041), LUTHFI
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/28680
• Institution: Institut Teknologi Bandung

<p align="justify">Geological mapping linked with provenance analysis of sandstone of Meluhu Formation was <br /> performed in Tambua, North Konawe, Southeast Sulawesi (UTM northing 382000-391000 easting 961500-963000 WGS84 in Zone 51 S). This was done to create a better understanding of the geomorphology, stratigraphy, structure, and history of the area including sandstone provenance of Meluhu Formation. The area has four distinct geomorphological appearances, from north to south, they are Tambua hills, Lasolo alluvial valley, Longeo fault hills, and Onembute homoclinal ridge. Tambua and surrounding area are here categorized into five lithological unit. From the oldest, there are Triassic sandstone unit, limestone unit, and claystone unit, which were deposited in series, and Cretaceous ultramafic rock unit which was well exposed in the north. Recent alluvial sediments then covered the older units unconformably. Within this area, geological structures are reflected from folds, and faults. Strike of sedimentary rocks were trending northwest - southeast with <br /> some folds observed. Several strike-slip faults were discovered in this area. They were likely formed due to the emplacement of ultramafic rock unit into the area which was interpreted as a result of Sula Spur collision since Late Oligocene in west and north arm of Sulawesi. <br /> Sandstones in this area have been classified as sublithic arenite and lithic arenite in which quartz constitutes 66 - 89%, feldspar 0 - 4%, and lithic fragments 10 - 34%. Provenance analysis shows that the sandstones derived from recycled orogene province.<p align="justify">