Author:
Yoshikawa Kenji,Nakamura Toshio
Abstract
ABSTRACTThe open-system pingos of Spitsbergen are formed outside terminal moraines, fault zones, and delta areas. Pingos in this study area were located near the shore in active geologic uplift areas. Three open-system pingos in the Adventdalen delta area of Spitsbergen were examined. Pingos closer to shore are younger in age and those farther away are older. Growth of these pingos occurs rapidly after initial submarine uplift and a minimum thickness of permafrost is established. Hut pingo, which is farthest from the sea, was formed after 6980±70 a BP (NUTA-3856). Driftwood associated with Longyear pingo, in the middle part of the delta, was dated at 2800±90 a BP. The radiocarbon age of peat near the shore pingo, Lagoon pingo, was 140±20 a BP. The growth of the pingos is related to transgression and development of permafrost.
Publisher
Cambridge University Press (CUP)
Subject
General Earth and Planetary Sciences,Ecology,Geography, Planning and Development
Reference14 articles.
1. Svensson H. 1970. Pingos i ytre dalen av Adventdalen. Norsk Polarinstitutt Arbok 1969:168–174.
2. Earth Mounds in Unglaciated Arctic Northwestern America
3. Observations on pingos and permafrost hydrology in Schuchert Dal, NE Greenland;O'Brien;Meddelelser om Grsøland,1971
4. Liestøl O. 1977. Pingos, springs, and permafrost in Spitsbergen. Norsk Polarinstitut Árbok 1975: 7–29.
Cited by
17 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献