#TITLE_ALTERNATIVE#

• Main Author: AGUSTIN (NIM: 22014009), FRISKA
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/27415
• Institution: Institut Teknologi Bandung

<p align="justify">Regionally, the Sumatra Island is controlled by the Sumatra Fault (Great Sumatra Fault, GSF) with the NW-SE tredning. This fault was a "dextral strike slip fault system" that occur due to collision of Eurasian Plate (movement to North) and Indoaustralia Plate (movement to south). Vertical faults have two mechanical components; dilatational and translational force. These components are controlled by environment heterogeneities thus it influences the spatial distribution of deformation structures. The environment heterogeneities include how rock mechanical properties can vary over time and how it alters deformation processes and resultant structures. This study is aimed to assess fracture characteristic which most likely correspond with either stress that obtained while drilling program being executed or fault as a result of tectonic. Muara Laboh geothermal prospect area located in a step-over transtensional structural play between Suliti and Siulak Segment of Great Sumatera Fault (GSF). The identified zones were used as basis for geological field investigation, based on visual interpretation of based on the data review consider fractures observed in delineation lineament from LiDAR and macroscopic scale electric logs image. The result of structures from drilling intensity fractures and faults in damage zones observed in the area of study is found to decrease with distance according well logging. The pattern of these geological structures is associated with the occurrence of surface manifestations that might indicate permeability zones existence as conduit of geothermal fluid from subsurface to surface area.<p align="justify">