#TITLE_ALTERNATIVE#

• Main Author: AHYA HUSEINA (NIM: 12009002); Tim Pembimbing: Dr. Ir. Andri Slamet Subandrio, Dipl Geol.; Dr. , ANGGA
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/17967
• Institution: Institut Teknologi Bandung

The study area is located on Manglayang Volcano, Sumedang District, West <br /> <br /> <br /> <br /> <br /> <br /> Java. It covers about 10.7 km2 and ranges between latitude 6° 51’ 40,7’’ - 6° 54’ <br /> <br /> <br /> <br /> <br /> <br /> 0,19’’ and longitude 107° 43’ 33,8’’ BT - 107° 45’ 40,2’’. <br /> <br /> <br /> <br /> <br /> <br /> Morphology of this area is divided into four geomorphology units. <br /> <br /> <br /> <br /> <br /> <br /> Banyuresmi Fault-block Ridge Unit is characterized by scarp from Banyuresmi <br /> <br /> <br /> <br /> <br /> <br /> Village continuous to the west of research area. Manglayang Volcanic Cones Unit is <br /> <br /> <br /> <br /> <br /> <br /> characterized by slope break or countour pattern change that occur in study area. <br /> <br /> <br /> <br /> <br /> <br /> Manglayang Lava Flow Ridge Unit which is lava settles in the south Manglayang <br /> <br /> <br /> <br /> <br /> <br /> characterized by tight contur pattern that shows on ridge morphology. Manglayang <br /> <br /> <br /> <br /> <br /> <br /> Plain Unit characterized by a different slope from the previous units which is <br /> <br /> <br /> <br /> <br /> <br /> moderately steep based on van Zuidam classification. The Stratigraphy of this area is <br /> <br /> <br /> <br /> <br /> <br /> divided into three units of lithostratigraphy. The following are sorted from the oldest <br /> <br /> <br /> <br /> <br /> <br /> to the youngest, those are: Enstantite Basalt – Pyroclastic Breccia Unit, Augite Basalt <br /> <br /> – Pyroclastic Breccia Unit, and also Aegirine-Augite Basalt – Pyroclastic Breccia <br /> <br /> <br /> <br /> <br /> <br /> Unit. Based on regional geology map, research area consist of young quaternary <br /> <br /> <br /> <br /> <br /> <br /> volcanic rocks. <br /> <br /> <br /> <br /> <br /> <br /> Geological history start at Holocene, magmatism activity occurs that breaks <br /> <br /> <br /> <br /> <br /> <br /> through old volcanic rocks between Bandung-Sumedang. This causes the volcanic <br /> <br /> <br /> <br /> <br /> <br /> rocks formed from magma that has a basaltic composition which named Enstantite <br /> <br /> <br /> <br /> <br /> <br /> Basalt – Pyroclastic Breccia Unit. After Enstantite Basalt – Pyroclastic Breccia Unit <br /> <br /> <br /> <br /> <br /> <br /> is formed, a process that forms volcanic landslide in northern Manglayang Volcano. <br /> <br /> <br /> <br /> <br /> <br /> Volcanic activity then continued until Augite Basalt – Pyroclastic Breccia Unit <br /> <br /> <br /> <br /> <br /> <br /> formed. This unit became the main cone on Manglayang Volcano. The last unit, <br /> <br /> <br /> <br /> <br /> <br /> Aegirine-Augite Basalt – Pyroclastic Breccia Unit, formed due to ongoing process of <br /> <br /> <br /> <br /> <br /> <br /> magmatism.