Chronology of glacial Lake Agassiz meltwater routed to the Gulf of Mexico

  title={Chronology of glacial Lake Agassiz meltwater routed to the Gulf of Mexico},
  author={Timothy G. Fisher},
  journal={Quaternary Research},
  pages={271 - 276}
  • T. Fisher
  • Published 1 March 2003
  • Geography, Environmental Science
  • Quaternary Research
A late Lake Minong transgression in the Lake Superior basin as documented by sediments from Fenton Lake, Ontario
The evolution of the early Great Lakes was driven by changing ice sheet geometry, meltwater influx, variable climate, and isostatic rebound. Unfortunately none of these factors are fully understood.
River Warren boulders, Minnesota, USA: catastrophic paleoflow indicators in the southern spillway of glacial Lake Agassiz
  • T. Fisher
  • Environmental Science, Geography
  • 2004
Boulders resting on meltwater‐sculpted and striated‐granite bedrock near the head of the southern outlet spillway of glacial Lake Agassiz are used to generate paleodischarge calculations. The rounded
Opening of glacial Lake Agassiz’s eastern outlets by the start of the Younger Dryas cold period
The Younger Dryas (12.9 ± 0.1 to 11.7 ± 0.1 ka) was a return to cold conditions in the Northern Hemisphere during the last deglaciation. This climatic event was hypothesized to have been caused by a
Megaflooding associated with glacial Lake Agassiz
  • T. Fisher
  • Environmental Science, Geography
  • 2020
Ages for the Big Stone Moraine and the oldest beaches of glacial Lake Agassiz: Implications for deglaciation chronology
Glacial Lake Agassiz has been implicated as the trigger for numerous episodes of abrupt climate change at the close of the last ice age, yet the beginning age of the lake has never been determined.
Early postglacial history of the southeastern Assiniboine Delta, glacial Lake Agassiz basin
New stratigraphic evidence from the Rossendale area, Manitoba, Canada, provides insight into the early postglacial evolution of the southeastern Assiniboine Delta. In this region, much of the upper


Glacial Lake Agassiz: The northwestern outlet and paleoflood
Valley morphology and sediment in the Fort McMurray region of Alberta indicate that a catastrophic flood discharged down the lower Clearwater and Athabasca river valleys 9900 yr B.P. Geomorphic and
Age verification of the Lake Gribben forest bed and the Younger Dryas Advance of the Laurentide Ice Sheet
Analysis of nine wood samples from the Lake Gribben forest bed near Lake Gribben, Michigan, yielded a combined age of 10 025 ± 100 14C years BP, which confirms and refines prior age estimates for the
Freshwater Forcing of Abrupt Climate Change During the Last Glaciation
It is found that periods of increased freshwater flow to the North Atlantic occurred at the same time as reductions in the formation of North Atlantic Deep Water, thus providing a mechanism for observed climate variability that may be generally characteristic of times of intermediate global ice volume.
Postglacial history and paleoecology of Wampum, Manitoba, a former lagoon in the Lake Agassiz basin
A small paleolagoon along the margin of the glacial Lake Agassiz basin near Wampum, Manitoba, 130 km southeast of Winnipeg, contains an unusually thick and continuous sequence of late-glacial and
Preboreal oscillation caused by a glacial Lake Agassiz flood
Megaflood erosion and meltwater plumbing changes during last North American deglaciation recorded in Gulf of Mexico sediments
Submicrometer variations in the median diameter of siliciclastic mud in Orca Basin, northern Gulf of Mexico, sensitively monitor Laurentide ice sheet runoff to the gulf during early stages of the
Changes in the Bathymetry and Volume of Glacial Lake Agassiz Between 11,000 and 9300 14C yr B.P.
The volume and surface area of glacial Lake Agassiz varied considerably during its 4000-year history. Computer models for seven stages of Lake Agassiz were used to quantify these variations over the
History of Laurentide meltwater flow to the Gulf of Mexico during the last deglaciation, as revealed by reworked calcareous nannofossils
The history of meltwater flow from the Laurentide Ice Sheet to the Gulf of Mexico during the last deglaciation, which holds possible implications for the cause of the Younger Dryas cold episode, is