Inventory and identification of geodiversity to support geotourism in the Lenggoksono bay area of South Malang, Indonesia

Abstract

Lenggoksono Beach Area which is a geomorphological region in the form of karst mountain located in the south of Malang Regency. This beach has beautiful scenery and presents unique and an interesting geosite conditions to be enjoyed. The purpose of this study is to inventory geodiversity data to fulfill the geotourism criteria and assess geodiversity data in the Lenggoksono Bay Area. The research method used was a survey and data collection method with 5 stages: data collection, criteria, assessment, interpretation, and clustering. The Lenggoksono Bay area has 5 landscapes, 4 beaches, islands, hills, and a river estuary. From the survey results, 6 types of rocks were found. Lenggoksono Bay was formed through the process of lifting the seabed containing limestone and coral reefs and igneous rock deposits over millions of years ago. These processes form the morphology and structure that has developed until present. The Lenggoksono Bay area has high value (4.4), where it contains scientific records, specific geological settings or landscapes. This is very meaningful, as an evidence of important geological events, and has special ecological functions that can be utilized for research, education, understanding of geological processes, and conservation. This area includes areas that comply the criteria to become geotourism.