Genesa of marble in Trenggalek because :
1. The existence of the limestone that is happening because of the existence of the limestone that came from the Campurdarat Formation and the Member of the Wonosari Formation that be aged Miosen.
2. Because of the existence of the influence of the pressure (metamorphism because of the influence of the pressure) that is happening because of the limestone unit was in the underside from the Campurdarat Formation afterwards was dealt with by the other rock unit that is by from the Jalen Formation, Formasi Wuni, Formasi Nampol and the Wonosari Formation
3. Because of the influence of the temperature (metamorphism because of the influence of the temperature) that is happening because of the limestone intrusion by the igneous rock and because of the structure of geology (fault/fracture) intensively