Potential mapping of limestone using Landsat 8 and Quickbird imagery in Tuban Regency

Indonesia is a country rich in minerals. Limestone is one of the non-metallic mineral industry is very large potential and spread almost throughout the territory of Indonesia. Tuban regency is one of the regencies located on the north coast of Java Island, precisely in East Java. As an area located in the northern part of East Java basin and is possible as a potential area of various mineral resources, one of them is limestone or limestone rock. The potential of limestone in Tuban Regency is very possible to be managed and processed to become an industry. Moreover, there are still many sources of limestone that have not been explored, With technological advances in the field of sensory, calculation of limestone potential estimation can be done by using remote sensing data and geographic information system. Remote sensing data used is Landsat 8 satellite image data reinforced with satellite data data of extremely high resolution Quickbird. This study aims to determine the potential of limestone rock in Tuban Regency. Parameters used for the identification of limestone potential in this study were 4, ie land cover, surface temperature, vegetation index, and geological elements. The result of this research is potential map of limestone of Tuban Regency which is divided into 5 classes namely very low potency, low potency, medium potency, high potential, and very high potential. From data processing resulted in Tuban Regency dominated by medium potency level with wide of 56483.70 hectare while for level of potency tinngi and very high have wide 33074.12 hectare and 31336.82 hectare.