3D Map Application on Cave Geosites in Relationship of Cave Morphometry and Surface Geomorphology in Karst Areas at Ngalau Basurek Cave, Silokek Geopark

Dipo Caesario (Department of Geography, Faculty of Social Science, Universitas Negeri Padang, 25171)
Bigharta Bekti Susetyo (Department of Geography, Faculty of Social Science, Universitas Negeri Padang, 25171)
Weni Kurnia Sari (Department of Electronics Engineering, Faculty of Engineering, Universitas Negeri Padang, 25171)
Wahyu Budhi Khorniawan (Department of Geological Engineering, Faculty of Engineering, Diponegoro University, 50275)
Ridwan Ridwan (Ranah Minang Silokek Geopark Management Agency, Sijunjung Regency, 27554)

Forum Geografi
Vol. 38 No. 2 (2024): August 2024

On 2 January 2018, the local government proposed Silokek, a region in the Sijunjung Regency, West Sumatra Province, Indonesia, as a geopark, based on district rule number 188.45/3/KPTS-BPT-2018. This arrangement was based on the idea that a geopark would provide tourist destinations with natural tourism and archaeological, environmental, historical, educational, and cultural components in addition to geology, making this place an indirect example of a complex tourist destination. The Ngalau Basurek Cave is a geosite in this area that is a well-liked tourist destination, although it does not yet have a useful and instructive cave morphometry map. Producing cave morphometric data using the compass and step mapping method and geomorphological analyses of Landsat 8 image data is suggested to identify patterns of relationships with surface karst morphological features. A northeast dip angle trend was visible in the fresh limestone of the Kuantan Formation, which formed cave features as a result of dissolution. The dolinas, uvalas, and cone–kart features, which are represented on topographic maps (DEM-SRTM), demonstrate comparable trends. Dip-angle and strike-line trends were used to obtain a complete relationship between cave morphometry and surface geomorphology in Silokek Geopark.