Wikipedia
Koh-i-Sultan is a volcano in Pakistan, in the province of Baluchistan. It is part of the tectonic belt formed by the collision of India and Asia, specifically a segment influenced by the subduction of the Arabian plate beneath the Asian plate, forming a volcanic arc that also includes Bazman and Taftan volcanoes in Iran. The volcano is constructed from three main cones with heavily eroded craters striking in a westnorthwest direction, surrounded by numerous subsidiary volcanic centres. The highest summit is high. The crater associated with the Miri cone has a smaller crater inside.
The volcano is formed by andesite and dacite rocks, with fragmentary rocks prevailing over lava flows. The rocks have a typical arc volcano chemistry and composition, there is a trend from andesite to dacite in the eruption products with younger age. Potassium-argon dating has indicated ages ranging from 5,900,000 years ago to 90,000 years ago. Subsequently, erosion has generated a large debris apron around the base of the volcano and carved rock formations that impressed early explorers; one well known rock formation is Neza e Sultan.
Geothermal activity and the emission of volcanic gases are still ongoing at Koh-i-Sultan, and the volcano has been prospected for the possibility to obtaining geothermal energy. The geothermal activity has resulted in widespread rock alteration and the formation of sulfur deposits which were known already to a report in 1909 and were later mined. The volcano also features deposits of other minerals.