Longgang Group
"The Longgang volcanic field covers a 1700 sq km area in Jilin Province of NE China, west of Changbaishan volcano. Basaltic and trachybasaltic lava flows cover a broad area dotted by more than 150 Quaternary cinder cones and 8 tuff rings. There is only one known cinder cone of Holocene age, Jinlongdingzi (Gold Dragon Peak). The eruption that formed the large Jinlongdingzi scoria cone and deposited tephra over a broad area to the east was radiocarbon dated at about 1600-1700 years ago."  -Smithsonian Volcano Archive
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