Genetically Complex and Morphologically Diverse Pingos in the Fish Lake Area of South West Banks Island, N. W. T., Canada
An unusually wide variety of pingo landforms located within a relatively restricted 50 km2area of thick surficial sediments and permafrost is documented. Pingo growth and decay may occur independent of climatic change as witnessed by examples of embryonic, active and collapsed/collapsing features. T...
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| Veröffentlicht in: | Geografiska annaler. Series A, Physical geography Physical geography, 1997-01, Vol.79 (1/2), p.41-56 |
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| container_title | Geografiska annaler. Series A, Physical geography |
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| creator | Gurney, Stephen D. Worsley, Peter |
| description | An unusually wide variety of pingo landforms located within a relatively restricted 50 km2area of thick surficial sediments and permafrost is documented. Pingo growth and decay may occur independent of climatic change as witnessed by examples of embryonic, active and collapsed/collapsing features. The presence of deep kettle lakes in the area probably creates a dynamic system of interlinked taliks which influence the groundwater supply to centres of ground ice growth. The field relationships suggest that the pingo growth mechanisms may embrace both hydrostatic and hydraulic processes. All the pingos post-date the Last Glacial Maximum ice retreat and the youngest was actively growing in AD 1981. |
| doi_str_mv | 10.1111/1468-0459.00005 |
| format | Article |
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Series A, Physical geography</title><description>An unusually wide variety of pingo landforms located within a relatively restricted 50 km2area of thick surficial sediments and permafrost is documented. Pingo growth and decay may occur independent of climatic change as witnessed by examples of embryonic, active and collapsed/collapsing features. The presence of deep kettle lakes in the area probably creates a dynamic system of interlinked taliks which influence the groundwater supply to centres of ground ice growth. The field relationships suggest that the pingo growth mechanisms may embrace both hydrostatic and hydraulic processes. All the pingos post-date the Last Glacial Maximum ice retreat and the youngest was actively growing in AD 1981.</description><subject>Freshwater fishes</subject><subject>Glacial lakes</subject><subject>Glaciers</subject><subject>Hydraulics</subject><subject>Hydrostatics</subject><subject>Ice</subject><subject>Kettle holes</subject><subject>Lakeshores</subject><subject>Permafrost</subject><subject>Sediments</subject><issn>0435-3676</issn><issn>1468-0459</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1997</creationdate><recordtype>article</recordtype><sourceid/><recordid>eNo9jE1PwkAURSdGExFdu3DzfgCtM51OZ1hiBSTBj0QMS_JK39BC6ZBONfbfi5F4Nje59-Ywdit4KI7cizgxAY_VMORH1Bnr_TfnrMdjqQKZ6OSSXXm__b1IGfVYN6Wa2nKNVdVB6vaHir4B6xyeXXMoXOU2p-2x_KLGE7yV9cZ5KGtoC4JJ6QuY445g1BCCs_DuPtsCluRbeMB652Hmq6NvAC8hLENYhANIscYcr9mFxcrTzSn77GMyXqRPwfx1OktH82AruGoDa7nKtVXGKp4MTSY5CkWarNJ5gpERmRCERusssxGXhoRGviaZ5EO-liKTfXb359361jWrQ1PuselWKhKxMPIHr0FaTg</recordid><startdate>19970101</startdate><enddate>19970101</enddate><creator>Gurney, Stephen D.</creator><creator>Worsley, Peter</creator><general>Swedish Society for Anthropology and Geography</general><scope/></search><sort><creationdate>19970101</creationdate><title>Genetically Complex and Morphologically Diverse Pingos in the Fish Lake Area of South West Banks Island, N. W. T., Canada</title><author>Gurney, Stephen D. ; Worsley, Peter</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-j105t-ff05d7f58f50698b30a15e7ef57d6a281b11ea877bbf2038e17a0ce36d90c31b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1997</creationdate><topic>Freshwater fishes</topic><topic>Glacial lakes</topic><topic>Glaciers</topic><topic>Hydraulics</topic><topic>Hydrostatics</topic><topic>Ice</topic><topic>Kettle holes</topic><topic>Lakeshores</topic><topic>Permafrost</topic><topic>Sediments</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gurney, Stephen D.</creatorcontrib><creatorcontrib>Worsley, Peter</creatorcontrib><jtitle>Geografiska annaler. 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The presence of deep kettle lakes in the area probably creates a dynamic system of interlinked taliks which influence the groundwater supply to centres of ground ice growth. The field relationships suggest that the pingo growth mechanisms may embrace both hydrostatic and hydraulic processes. All the pingos post-date the Last Glacial Maximum ice retreat and the youngest was actively growing in AD 1981.</abstract><pub>Swedish Society for Anthropology and Geography</pub><doi>10.1111/1468-0459.00005</doi><tpages>16</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0435-3676 |
| ispartof | Geografiska annaler. Series A, Physical geography, 1997-01, Vol.79 (1/2), p.41-56 |
| issn | 0435-3676 1468-0459 |
| language | eng |
| recordid | cdi_jstor_primary_521418 |
| source | JSTOR Archive Collection A-Z Listing |
| subjects | Freshwater fishes Glacial lakes Glaciers Hydraulics Hydrostatics Ice Kettle holes Lakeshores Permafrost Sediments |
| title | Genetically Complex and Morphologically Diverse Pingos in the Fish Lake Area of South West Banks Island, N. W. T., Canada |
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