#TITLE_ALTERNATIVE#

• Main Author: ADIPRATAMA (NIM 12004044), JOHAN
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/13582
• Institution: Institut Teknologi Bandung

Geomorphology of research area divided into 2 geomorphology unit refer to van Zuidam (1985) classification that describe about a form landscape based on morphology, morphometry, and constituent material that are Alluvial Plain Geomorphology Unit and Pyroclastic Fall Hills Unit. Order stratigraphy of research area consists of sedimentary and volcanic rock. The arrangement stratigraphy from the oldest to the youngest that are Tuffaceous Sandstone Unit attain the age of Late Oligocene – Early Miocene (N3-N4), Tuff Unit attain the age of Early Pliocene – Late Pliocene (N19-N20), and Andesite Lava Unit attain the age of Late Pliocene (N20 – N21). Geology structure in research area are fault, shear, and fold structures. Fault structures in studies area are thrust fault Anggai – Maderow Fault that cut across Tuffaceous Sandstone Unit and Tuff Unit. Based on the result of the laboratory analysis founded some precious metal minerals, the example is gold in some rock concentrate samples there are A075, A079, A086, A110, A081, A082, A107, A108, and A102. Research area consist of argilic and propylitic alteration in high sulfidation epithermal mineralization. The areas that indicate metal minerals prospect are in Anggai River (around Maderow River) and Airmangga River (Siantari and Sepidang Hills).