SUBSURFACE MODELING IN CENTRAL ANATOLIAN VOLCANIC PROVINCE (CAVP), TURKEY USING GRAVITY AND MAGNETIC DATA

• Main Author: Muafa, Farid
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/86250
• Institution: Institut Teknologi Bandung

Central Anatolian Volcanic Province (CAVP), located in Turkey, is a region where the Eurasian, African, and Arabian Plates interact. This plate interaction creates a very dynamic geological condition, which triggers significant volcanic and tectonic activities through subduction and plate movement processes. The geological complexity in this region is mainly characterized by the widespread presence of monogenetic volcanoes. This study aims to identify the possibility of crustal thinning in the CAVP, especially in areas where monogenetic volcanoes are found, and to map the subsurface geological structure, including the depth of the Moho and the magma chamber in the region. Magnetic and gravity data will be used to reveal important features in this region. In the CAVP region, a slab breakoff event occurs, which causes hot material from the asthenosphere to rise to fill the space left by the broken plate. This process can produce magma that rises to the surface, thus triggering volcanic activity. The rise of hot material from the asthenosphere also causes the elongation and thinning of the earth's crust (crustal thinning). The modeling results show the existence of two magma storage chambers in the CAVP region, namely a magma chamber at a depth of 8–12 km and a magma reservoir at a depth of 17–20 km below the surface. The Moho depth in the Central Anatolian Volcanic Province (CAVP) is estimated to be 35 km. In addition, there are indications of thinning of the earth's crust due to the rise of the mantle from a depth of 47 to 35 km in this region.