Author: Palmer K. Bailey
Publisher:
ISBN:
Category : Frozen ground
Languages : en
Pages : 72
Book Description
The distribution and characteristics of periglacial landforms in the southern Kenai Mountains, Alaska, were investigated during the summer of 1979. The principal area of study was a 1300-metre high mountain mass which stood as a nunatak during the last general glaciation. Periglacial features in the area include gelifluction lobes, nivation hollows, cryoplanation terraces, tors, a string bog, and various forms of patterned ground such as sorted circles, sorted polygons, earth hummocks, sorted steps, sorted stripes, and small ice-wedge polygons. Ground temperature measurements indicate that permafrost recently existed in the area but is no longer present. The sorted polygons, cryoplanation terraces, and nivation hollows are relic features which have been inactive for a considerable time. The turf-banked sorted steps and large gelifluction lobes were active until the very recent thawing of permafrost. Cryofraction and frost sorting still are vigorous active processes. Finely jointed bedrock, a previous colder environment, and long exposure in the absence of glacial ice has allowed periglacial processes to be the dominant surface agents both in the principal study area and in similar areas along the western side of the Kenai Mountains. (Author).
Periglacial Landforms and Processes in the Southern Kenai Mountains, Alaska
Author: Palmer K. Bailey
Publisher:
ISBN:
Category : Frozen ground
Languages : en
Pages : 72
Book Description
The distribution and characteristics of periglacial landforms in the southern Kenai Mountains, Alaska, were investigated during the summer of 1979. The principal area of study was a 1300-metre high mountain mass which stood as a nunatak during the last general glaciation. Periglacial features in the area include gelifluction lobes, nivation hollows, cryoplanation terraces, tors, a string bog, and various forms of patterned ground such as sorted circles, sorted polygons, earth hummocks, sorted steps, sorted stripes, and small ice-wedge polygons. Ground temperature measurements indicate that permafrost recently existed in the area but is no longer present. The sorted polygons, cryoplanation terraces, and nivation hollows are relic features which have been inactive for a considerable time. The turf-banked sorted steps and large gelifluction lobes were active until the very recent thawing of permafrost. Cryofraction and frost sorting still are vigorous active processes. Finely jointed bedrock, a previous colder environment, and long exposure in the absence of glacial ice has allowed periglacial processes to be the dominant surface agents both in the principal study area and in similar areas along the western side of the Kenai Mountains. (Author).
Publisher:
ISBN:
Category : Frozen ground
Languages : en
Pages : 72
Book Description
The distribution and characteristics of periglacial landforms in the southern Kenai Mountains, Alaska, were investigated during the summer of 1979. The principal area of study was a 1300-metre high mountain mass which stood as a nunatak during the last general glaciation. Periglacial features in the area include gelifluction lobes, nivation hollows, cryoplanation terraces, tors, a string bog, and various forms of patterned ground such as sorted circles, sorted polygons, earth hummocks, sorted steps, sorted stripes, and small ice-wedge polygons. Ground temperature measurements indicate that permafrost recently existed in the area but is no longer present. The sorted polygons, cryoplanation terraces, and nivation hollows are relic features which have been inactive for a considerable time. The turf-banked sorted steps and large gelifluction lobes were active until the very recent thawing of permafrost. Cryofraction and frost sorting still are vigorous active processes. Finely jointed bedrock, a previous colder environment, and long exposure in the absence of glacial ice has allowed periglacial processes to be the dominant surface agents both in the principal study area and in similar areas along the western side of the Kenai Mountains. (Author).
Special Report
Author: Cold Regions Research and Engineering Laboratory (U.S.)
Publisher:
ISBN:
Category : Arctic regions
Languages : en
Pages : 76
Book Description
Publisher:
ISBN:
Category : Arctic regions
Languages : en
Pages : 76
Book Description
Permafrost Bibliography Update, 1983-1987
Author:
Publisher:
ISBN:
Category : Frozen ground
Languages : en
Pages : 238
Book Description
Publisher:
ISBN:
Category : Frozen ground
Languages : en
Pages : 238
Book Description
Permafrost, a Bibliography, 1978-1982
Author:
Publisher:
ISBN:
Category : Frozen ground
Languages : en
Pages : 366
Book Description
Publisher:
ISBN:
Category : Frozen ground
Languages : en
Pages : 366
Book Description
Glaciological Data
Author:
Publisher:
ISBN:
Category : Frozen ground
Languages : en
Pages : 350
Book Description
Publisher:
ISBN:
Category : Frozen ground
Languages : en
Pages : 350
Book Description
Scientific and Technical Aerospace Reports
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1160
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1160
Book Description
Workshop on the U.S. Antarctic Meteorological Data Delivery System
Author: Claire S. Hanson
Publisher:
ISBN:
Category : Meteorological stations
Languages : en
Pages : 682
Book Description
Publisher:
ISBN:
Category : Meteorological stations
Languages : en
Pages : 682
Book Description
Tenth Anniversary Seminar ; Passive Microwave Users Workshop ; Microwave Radiometry Bibliography
Author: Claire S. Hanson
Publisher:
ISBN:
Category : Frozen ground
Languages : en
Pages : 478
Book Description
Publisher:
ISBN:
Category : Frozen ground
Languages : en
Pages : 478
Book Description
Monthly Catalog of United States Government Publications
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 580
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 580
Book Description
Technical Abstract Bulletin
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 230
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 230
Book Description