Dariganga Volcanic Field

sopka (bez známé erupce za posledních ~12 000 let), Mongolia, Eastern Asia Volcanic Regions

Kde

Mongolia, Eastern Asia Volcanic Regions

Typ (GVP)

Volcanic field

Nadmořská výška

1 778 m

Poloha

45,754°, 114,279°

The Dariganga volcanic field, located in SE Mongolia near the China border, consists of more than 200 lava and cinder cones erupted from NE-trending parallel fissures. The cones range in height from 25 to 300 m, and vary from partially eroded to completely preserved. Compositionally they are more Na-rich than the K-rich rocks of northern and central Mongolia, and consist of basaltic, trachybasaltic, and foiditic rocks. The southern part of the volcanic field, which may be contiguous with the Dolon Nor volcanic field across the border in China, is rich in ultramafic xenoliths. Yarmolyuk et al. (2024) identified four stages of activity, from the middle Miocene to Pleistocene. Rasskazov et al. (2024) reported that the youngest K-Ar date in their study, 1.6 +/- 0.1 Ma, was from a sample of the Undur-Khuret cone in the southern part of the field.

Text: Smithsonian Global Volcanism Program.

Údaje o sopce: Smithsonian Global Volcanism Program. Další sopky a průduchy.