Ch'uga-ryong

sopka (bez známé erupce za posledních ~12 000 let), North Korea-South Korea, Eastern Asia Volcanic Regions

Kde

North Korea-South Korea, Eastern Asia Volcanic Regions

Typ (GVP)

Shield

Nadmořská výška

400 m

Poloha

38,467°, 127,283°

An area of extensive basaltic lava flows occupies a graben, the NNE-SSW-trending Ch'uga-ryong rift, that cuts diagonally across the border between North and South Korea. As summarized by Whitford-Stark (1987), Tomita (1969) noted that a 40-km-long lava flow originated from the low Ap-san shield volcano, which has a 200-m-wide summit crater and more than 20 satellitic cones, and another voluminous late-Pleistocene lava flow is 60 km long. Tomita (1967) stated that there has been no Holocene volcanism on the Korean Peninsula. Alkaline basaltic lava flows at the SW portion of the rift were erupted over Precambrian sediments and igneous rocks, and were estimated by Lee (1981) to have been produced by up to 11 eruptions in the late Pleistocene or early Holocene. There are no recorded eruptions or dated deposits confirming Holocene activity. The location of this shield volcano and area of lava flows is not well documented, but a map reproduced in Koh et al. (2022) identifies multiple areas of late Pleistocene extrusive rocks in the central part of the peninsula.

Text: Smithsonian Global Volcanism Program.

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