Map showing distribution of moraines and extent of glaciers from the mid-19th century to 1979 in the Mount Jackson area, Glacier National Park, Montana

1988 ◽  
Keyword(s):  
19Th Century ◽  
National Park ◽  
Glacier National Park

Holocene tephrostratigraphy and glacial fluctuations in Waterton Lakes and Glacier national parks, Alberta and Montana

1985 ◽  
Vol 22 (7) ◽  
pp. 1093-1101 ◽  
Author(s):  
Gerald Osborn
Keyword(s):  
19Th Century ◽  
National Parks ◽  
Rocky Mountains ◽  
National Park ◽  
Glacier National Park ◽  
Glacial Deposits ◽  
Canadian Rockies ◽  
Continental Divide ◽  
Minimum Age ◽  
Waterton Lakes National Park

Waterton Lakes National Park in Alberta and Glacier National Park in Montana lie along adjacent sections of the continental divide in the Rocky Mountains. In cirques or near divides there is evidence for two ages of glacial deposits. Younger deposits are generally well preserved, poorly vegetated, and bear no tephra and no or very small lichens. Older deposits are more poorly preserved, better vegetated, bear Rhizocarpon sp. lichens at least up to 92 mm in diameter, and bear tephra. The tephra often occurs in two different coloured horizons, but both are compositionally equivalent to Mazama tephra.The older advance has a minimum age of about 6800 14C years BP and a probable maximum age of about 12 000 14C years BP. It is correlated with the pre-Mazama Crowfoot Advance of the Canadian Rockies. Deposits of the younger advance are probably not too much older than mid-19th century, because some glaciers began retreating from the deposits about then. The younger advance is correlated to the Cavell Advance of the Canadian Rockies and the Gannett Peak Advance of the American Rockies.Both advances were minor. The older advance left moraines about 1.5 km or less beyond present glacier margins and depressed ELA's an average of 40 m below modern values.

Holocene and latest Pleistocene glacial chronology, Glacier National Park, Montana

1987 ◽  
Vol 24 (3) ◽  
pp. 387-395 ◽  
Author(s):  
Paul E. Carrara
Keyword(s):  
19Th Century ◽  
Rocky Mountains ◽  
National Park ◽  
Age Groups ◽  
Glacier National Park ◽  
Glacial Chronology ◽  
Summer Temperatures ◽  
Climatic Cooling ◽  
Average Annual Precipitation ◽  
Glacial Advance

Moraines of two different age groups have been identified fronting the present-day glaciers and snowfields in Glacier National Park, Montana. The subdued, vegetated moraines of the older group have been found at 25 sites, mainly in the central part of the Lewis Range. These older moraines are in places overlain by the Mazama ash. Although the exact age of the moraines has not been determined by radiocarbon dating, vegetative evidence and correlation with other pre-altithermal age moraines in the Rocky Mountains suggest that these older moraines date from 10 000 BP or earlier. Whether these moraines are the product of a separate advance after the end of the Wisconsin glaciation or are simply the product of the last advance or stillstand of Wisconsin glaciers before final deglaciation is not known.Moraines of the younger group, consisting of fresh bouldery rubble, are common throughout Glacier Park. Tree-ring analyses indicate that some of these younger moraines were deposited by advances that culminated during the mid-19th century. At that time there were more than 150 glaciers in Glacier Park. This episode of mid-19th century climatic cooling resulted in the most extensive glacial advance in this region since the end of the Wisconsin glaciation.Present-day glaciers have shrunk drastically from their mid-19th century positions; more than half the glaciers present during that time no longer exist. Much of this retreat occurred between 1920 and the mid-1940's, corresponding to a period of above-average summer temperatures and below-average annual precipitation in this region. Between 1966 and 1979, several of the larger glaciers in the Mount Jackson area of Glacier Park advanced as much as 100 m.

Glacier observations, Glacier National Park, Montana, 1957 and 1958

1959 ◽  
Author(s):  
Arthur Johnson
Keyword(s):  
National Park ◽  
Glacier National Park

The rocks and fossils of Glacier National Park: The story of their origin and history

1959 ◽  
pp. 401-439 ◽  
Author(s):  
Clyde P. Ross ◽  
Richard Rezak
Keyword(s):  
National Park ◽  
Glacier National Park

CLIMATE CHANGE COMMUNICATION USING VIRTUAL PLACE ATTACHMENT AT GLACIER NATIONAL PARK, MONTANA, USA

2016 ◽  
Author(s):  
Sarah M. Principato ◽  
◽  
Dori L. Gorczyca ◽  
Salma B. Monani
Keyword(s):  
Climate Change ◽  
Place Attachment ◽  
National Park ◽  
Glacier National Park ◽  
Climate Change Communication ◽  
Change Communication

THE PLEISTOCENE-HOLOCENE TRANSITION IN EASTERN GLACIER NATIONAL PARK AS EVIDENCED BY LAKE SEDIMENT LITHOSTRATIGRAPHY

2019 ◽  
Author(s):  
Noah Slade ◽  
◽  
Amy Myrbo ◽  
Kelly MacGregor
Keyword(s):  
Lake Sediment ◽  
National Park ◽  
Glacier National Park

The Late-Neoglacial Histories of the Agassiz and Jackson Glaciers, Glacier National Park, Montana

1981 ◽  
Vol 13 (2) ◽  
pp. 183 ◽  
Author(s):  
Paul E. Carrara ◽  
Robert G. McGimsey
Keyword(s):  
National Park ◽  
Glacier National Park
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