Nangelaquishan cinder cone of the Wudalianchi volcanic field
Volcano Type: Volcanic field
Volcano Status: Historical
Last Known Eruption: 1776
Summit Elevation: 597 m 1,959 feet
Latitude: 48.72°N * 48°43’0″N
Longitude: 126.12°E 126°7’0″E
The Wudalianchi volcanic field, named for a string of five scenic lava-dammed lakes, consists of 14 cinder cones capping a 500 sq km shield-like lava plateau in NE China. The volcanic field, whose name means “Five Connected Pools” was formed during five eruptive cycles from the early Pleistocene to historical time. Its ancient name was “Nine Hills,” which after the historical eruptions now number 14 hills. The cinder cones were erupted through basement sedimentary and granitic rocks and show a preferred alignment along three chains at the intersection of NE- and NW-trending lineaments. In addition to the historical cinder cones of Laoheishan and Huoshaoshan, Xilongmenshan and Donglongmenshan are Holocene in age. The freshly preserved cones of Laoheishan and Huoshaoshan were formed during eruptions in 1720-21. Fissures at the base of the two new cinder cones fed glassy pahoehoe and aa lava flows that covered 65 sq km and formed the five lakes of Wudalianchi at their eastern and northern margins. Renewed eruptions took place in 1776.
The Pleistocene Nangelaquishan cinder cone, capped by a 500-m-wide flat-bottomed crater, is one of 14 cones forming the Wudalianchi volcanic field in Manchuria, NE China. The cinder cones, four of which are Holocene in age, show a preferred alignment along three parallel NE-SW trends. The Wudalianchi volcanic field was named for five scenic lakes dammed by lava flows during a 1719-21 eruption, which formed two new cinder cones and produced a 65 sq km lava field.
Wudalianchi Cones
Wudalianchi Map
Originally posted 2010-07-06 17:19:59.
