The Dacht-i-Navar Group is a volcanic field in Afghanistan. It consists of a group of lava domes and stratovolcanoes at the southern end of the Dacht-i-Navar depression and partly extend north of the same depression. They were active during the Pliocene and Pleistocene. Geography and geology Dacht-i-Navar lies southwest of Kabul, about one third the way to Kandahar. The city of Ghazni is about east of Dacht-i-Navar. Geological context In 1969, the history of volcanism in Afghanistan was poorly known. Only a few volcanic fields of Pliocene-Quaternary age exist in Afghanistan. Aside from orogen-associated volcanism, volcanism typical of rifting zones is also found. Magma production through the Pliocene-Pleistocene has been low and volcanoes cover only small areas. The complex itself Dacht-i-Navar is formed by over ten central volcanoes that form lava sheets and tuffs stacked on top of each other. These central volcanoes form heavily degraded stratovolcanoes, the largest of which ( high Mamikala and high Zarkadak) are over wide at the base, and are cut by ravines that end in alluvial fans and previously channelled nuee ardentes. They also display traces of glacial activity which bury most of the edifices. These two centres lie in the south of the group; Ghiftu, Khut and Sewak are also located in the south while high Kotale Reg and high Qaghkusta lie in the east. The Doni Yarchi massif lies in the north. Other volcanic centres are Mount Burguk, Mount Hut and Mount Mohammad, in total over 24 individual centres were found. The highest of these centres exceed of altitude. Some of these volcanoes still display craters. Extrusive bodies such as lava domes are also found, as well as two calderas associated with stratovolcanoes. Smaller centres sometimes also have central calderas with extrusive domes, some of these calderas reach diameters of . The Dacht-i-Navar group lies mainly within the southern part of a geological depression with dimensions of . The few more northern centres are separated from the main complex by the clay-filled Nawar basin and a surrounding Pleistocene terrace. The infill, which includes volcanic material, is likely thicker than . This basin has an altitude of , but it is surrounded by higher summits. Despite evaporation, a lake persists within the basin. Probably, the depression was once a valley cut into schists which are pre-Devonian and still crop out in some places. This valley drained southwestward towards the Arghandab River that was