CHARACTERIZATION OF THE HYDROLOGIC AND LANDSCAPE FACTORS CONTROLLING CALCAREOUS FEN OCCURRENCE ALONG GLACIAL LAKE AGASSIZ BEACH RIDGES, NORTHWESTERN MINNESOTA

2019 ◽  
Author(s):  
Nicholas R. Budde ◽  
Keyword(s):  
Glacial Lake ◽  
Lake Agassiz ◽  
Beach Ridges ◽  
Calcareous Fen ◽  
Glacial Lake Agassiz ◽  
Landscape Factors

Postglacial Diatom Stratigraphy in Relation to the Recession of Glacial Lake Agassiz

1975 ◽  
Vol 5 (4) ◽  
pp. 529-540 ◽  
Author(s):  
J.C. Ritchie ◽  
L.K. Koivo
Keyword(s):  
Sandy Beach ◽  
Sedimentary Environment ◽  
Glacial Lake ◽  
Lake Agassiz ◽  
Organic Detritus ◽  
Sedimentary Environments ◽  
Grand Rapids ◽  
Glacial Lake Agassiz ◽  
Diatom Stratigraphy ◽  
Beach Sands

The sediment and diatom stratigraphy of a small pond on The Pas moraine, near Grand Rapids, Manitoba, reveals a change in sedimentary environment related directly to the last stages of Glacial Lake Agassiz. Beach sands were replaced by clay 7300 14C y. a., then by organic silt and, at 4000 14C y. a. by coarse organic detritus; the corresponding diatom assemblages were (I) a predominantly planktonic spectrum in beach sands, (II) a rich assemblage of nonplanktonic forms, and (III) a distinctly nonplanktonic acidophilous spectrum. These results confirm Elson's (1967) reconstruction of the extent and chronology of the final (Pipun) stage of Glacial Lake Agassiz. The sedimentary environments change from a sandy beach of a large lake at 7300 BP to a small, shallow eutrophic pond with clay and silt deposition from 7000 to 4000 BP. From 4000 BP to the present, organic detritus was deposited in a shallow pond that tended toward dystrophy.

Micromorphology of iceberg scour in clays: Glacial Lake Agassiz, Manitoba, Canada

2012 ◽  
Vol 55 ◽  
pp. 125-144 ◽  
Author(s):  
Lorna D. Linch ◽  
Jaap J.M. van der Meer ◽  
John Menzies
Keyword(s):  
Glacial Lake ◽  
Lake Agassiz ◽  
Glacial Lake Agassiz ◽  
Iceberg Scour

Thunder Bay, Ontario, was not a pathway for catastrophic floods from Glacial Lake Agassiz

2012 ◽  
Vol 260 ◽  
pp. 98-105 ◽  
Author(s):  
E.B. Voytek ◽  
S.M. Colman ◽  
N.J. Wattrus ◽  
J.L. Gary ◽  
C.F.M. Lewis
Keyword(s):  
Glacial Lake ◽  
Lake Agassiz ◽  
Thunder Bay ◽  
Glacial Lake Agassiz

Glacial Lake Agassiz

Endeavour ◽  
1984 ◽  
Vol 8 (4) ◽  
pp. 211
Author(s):  
R.W Duck
Keyword(s):  
Glacial Lake ◽  
Lake Agassiz ◽  
Glacial Lake Agassiz
Sign in / Sign up

Export Citation Format

Share Document