Rock glaciers on South Shetland Islands, Antarctic Peninsula View Catalog Page Entry ID
GGD279
Summary
In the South Shetland Islands the investigators found eight active rock glaciers, no relict or fossil examples, and seven protalus ramparts. The rock glaciers are located on peninsulas and capes of the two main islands of the archipelago: King George and Livingston. The South Shetland Islands have a cold oceanic climate, characteristic of the maritime Antarctica, with frequent summer rains and moderate thermal amplitude, and a cold and humid morphoclimatic system, of crionival character. These climatic parameters facilitate the operation of periglacial processes, and the presence of a usually saturated active layer in summer. In the South Shetland Islands the presence of rock glaciers have been identified on Livingston Island (Martinez de Pison et al., 1991; Lopez-Martinez et al., 1992a, 1992b), on Admiralty Bay, in King George Island (Birkenmajer, 1981; Barsch et al., 1985) and in Fildes Peninsula (Barsch et al. 1985; Barsch, 1996; Cheng et al., 1996). Four further active rock glaciers have been identified during the present study in King George and Livingston Island (Serrano and Lopez-Martinez, in prep.). The rock glaciers are located in marginal zones, between 300 m asl and sea level, which has been recently deglaciated, and principally under 70 m asl, near 100 m under the Median Equilibrium Line Altitude (MELA). There are indications of a recent diminution of activity, with blurred fronts, mass movements in fronts and sides, lichen colonization and glaciokarstic processes. All of these indicate an inherited dynamic of past conditions in lower altitudes.
References to rock glaciers are scarce in Antarctica, limited to a few examples in the Transantarctic Mountains, Victoria Land, South Georgia, James Ross Island, and South Shetland Islands. The spatial pattern of rock glaciers indicates that they are more represented in the periphery of Antarctica than in the interior of the continent, and are particularly numerous in the Antarctic Peninsula region. These data are presented on the CAPS Version 1.0 CD-ROM, June 1998.
Geographic Coverage
Spatial Coordinates: N: -61.983°
S: -63.667°
E: -57.667°
W: -62.75°
|
Data Set Citation
Dataset Creator: Serrano, E., J. Lopez-Martinez, J.M.G. Casado, J.J. Duran, E. Martinez de Pison, and P. Nicolos Dataset Title: Rock glaciers on South Shetland Islands, Antarctic Peninsula Dataset Release Date: 1998-01-01 Dataset Release Place: Boulder, Colorado USA Dataset Publisher: NSIDC: National Snow and Ice Data Center Online Resource: http://nsidc.org/data/ggd279.html
Temporal Coverage
Start Date: 1994-01-01 Stop Date: 1997-12-31
Location Keywords
- OCEAN
SOUTHERN OCEAN SOUTH SHETLAND ISLANDS SOUTH SHETLAND ISLANDS, ANTARCTIC PENINSULA
Science Keywords
- Cryosphere
Frozen Ground Rock Glaciers
- Land Surface
Frozen Ground Rock Glaciers
Ancillary Keywords
Data Center
National Snow and Ice Data Center Data Center URL: http://nsidc.org
Data Center Personnel
Name: NSIDC User Services Phone: 1 303 492-6199 Fax: 1 303 492-2468 Email: nsidc@nsidc.org Contact Address:
- National Snow and Ice Data Center
- CIRES, 449 UCB
- University of Colorado
City: Boulder Province or State: CO Postal Code: 80309-0449 Country: USA
NSIDC Frozen Ground Data Center Data Center URL: http://nsidc.org/fgdc/
Data Center Personnel
Name: NSIDC FGDC User Services Phone: 1 303 492-6199 Fax: 1 303 492-2468 Email: nsidc@nsidc.org Contact Address:
- National Snow and Ice Data Center
- CIRES, 449 UCB
- University of Colorado
City: Boulder Province or State: CO Postal Code: 80309-0449 Country: USA
Distribution
Distribution Media: FTP Distribution Format: ASCII Text
Personnel
Enrique Serrano Role: INVESTIGATOR Phone: 34 42 201776 Fax: 34 42 201783 Email: serranoe@ccaix3.unican.es Contact Address:
- Universidad de Cantabria
- Programa Nacional de Investigacion en la Antartida
- Av. de Los Castros s/n.
City: Santander Postal Code: 30012 Country: Spain
Jeronimo Lopez-Martinez Role: INVESTIGATOR Phone: 34 1 3974513 Fax: 43 1 397490 Email: Jeronimo.Lopez@uam.es Contact Address:
- Universidad Autonoma de Madrid
- Dipartmento Quimica Agricola, Geologia y Geoquimica
- Cantoblanco
City: Madrid Postal Code: 28049 Country: Spain
Jose Manuel Gonzalez Casado Role: INVESTIGATOR
Juan Jose Duran Role: INVESTIGATOR
Eduardo Martinez de Pison Role: INVESTIGATOR Phone: 34 1 397 4513 Email: emartinez@uam.es Contact Address:
- Universidad Autonoma de Madrid, Dpto. Geografia
- ERHIN Program, D.G.O.H., Environment National Ministry
- Cantoblanco
City: Madrid Postal Code: 28049 Country: Spain
Pedro Nicolos Role: INVESTIGATOR
Reference
BARSCH, D.1996. Rochglaciers. Indicators for the present and former geoecology in high mountain environments. Springer Verlag, Berlin. 331 p.
BARSCH, D., BLUEMEL, W.D., FLUEGEL, W.A., MAUSBACHER, R., STAEBLEIN, G., ZICK, W.1985. Untersuchungen zum Periglazial auf der Koenig George-Insel, Suedshetlandinseln, Antarktika. Ber Polarforsch, 24:75.
BIRKENMAJER, K.1981. Lichenometric dating of raised marine beaches at Admiralty Bay, King George Island (South Shetland Islands, West Antarctica). Bulletin de L'Academie Polonaise des Sciences, vol. XXIX, 2:119-127.
BOCKHEIM, J.G.1995. Permafrost distribution in the Southern Circumpolar region and its relation to the environment: a review and recommendations for further research. Permafrost and Periglacial Processes, 6:27-45.
CHENG, Z., ZHIJIU, C.; JIANXIN, Z.1996. Relatonship between the distribution of periglacial landforms and glaciation history, Fildes Peninsula, King George islands Antarctica. Permafrost and Periglacial Processes, 7: 95-100.
LOPEZ-MARTINEZ, J., MARTINEZ DE PISON, E., ARCHE, A. 1992a. Geomorphology of Hurd Peninsula, Livingston Island, South Shetland Islands. In Yoshida, Y. et al. Recent Progress in Antarctic Earth Science, Terrapub, Tokio:751-756.
LOPEZ-MARTINEZ, J., VILAPLANA, J.M., MARTINEZ DE PISON, E., CALVET, J. ARCHE, A., SERRAT, D., PALLAS, R. 1992b.- Geomorphology of selected areas in Livingston Island, South Shetland IslandS. In Lopez-Martinez, J. Geologia de la Antartida Occidental, III Congreso Geologico de Espana, T-III Salamanca :271-281.
MARTINEZ DE PISON, E., LOPEZ-MARTINEZ, J., ARCHE, A. 1991. Formas y depositos de la zona de Johnsons Dock. Mapa geomorfologico. Isla Livingston. Shetland del Sur, Antartida. Eria, Revista de Geografia, 24-25:39-45.
SERRANO, E.; LOPEZ-MARTINEZ, J.(In prep.).- Rock glaciers in the South Shetland Islands.
Metadata Name and Version
Metadata Name: CEOS IDN DIF Metadata Version: 9.7
Creation and Review Dates
DIF Creation Date: 1998-01-01 Last DIF Revision Date: 2012-08-24
|