The provided procedure portrays the evolution of stone via natural cycle.
At first glance, it is evident that there are 8 stages of stone formation, commencing with volcanic eruption and culminating with marma formation.
Moving to a more detailed analysis, the volcano erupts on average 3 times within the year, which is then followed by cooling and solidification of granite and basalt layers. Then, due to chemical and mechanical reasons, rocks break into smaller pieces undergoing weathering and erosion in the first 7 months. Afterwards, sediments of rocks transfer by its carrier: weather. Prior to the accumulation of cements, the process of lithification occurs where the dispositions of sediments are used. Formation of metamorphic rocks followed by the subduction and melting. This process requires high temperatures and pressure (32000C and 2400 atm, respectively). Furthermore, tectonic movements and internal heat propels the creation of magma, which is eventually returned to the eruption.