History of late glacial runoff along the southwestern margin of the Laurentide Ice Sheet

Kehew, Alan E.; Teller, James T.

doi:10.1016/0277-3791(94)90006-x

Cited by 59 publications

(44 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In cross-section the main channel is also approximately symmetrical throughout 447 the mapped length. This is unlike that expected for normal fluvial systems which are typically irregular and 448 asymmetric along comparable lengths (Kehew and Teller, 1994). The system also has erosional terraces, as 449 expected for catastrophic flooding systems (Kozlowski et al, 2005).…”

Section: A and F 295mentioning

confidence: 89%

Streamlined islands and the English Channel megaflood hypothesis

Collier

Oggioni

Gupta

et al. 2015

Global and Planetary Change

View full text Add to dashboard Cite

Section: A and F 295mentioning

confidence: 89%

Streamlined islands and the English Channel megaflood hypothesis

Collier

Oggioni

Gupta

et al. 2015

Global and Planetary Change

View full text Add to dashboard Cite

“…1 and 2). Glacial Lake Hind was one of several interconnected proglacial lakes that formed across the northern Prairies during the period of final (Late Wisconsinan) deglaciation (e.g., Klassen, 1972;Clayton and Moran, 1982;Fenton et al, 1983;Kehew and Clayton, 1983;Klassen, 1983;Kehew and Lord, 1986;Kehew and Teller, 1994;Sun and Teller, 1997). Lake Hind was part of the northern Plains proglacial lake-spillway system.…”

Section: Study Sitementioning

confidence: 99%

Paleoecology of an Early Holocene Wetland on the Canadian Prairies

Boyd

2005

gpq

View full text Add to dashboard Cite

AbstractA plant macrofossil record from the glacial Lake Hind basin is used to reconstruct early postglacial wetland plant succession and paleohydrology. Between >10.6 and 9.1 ka BP, there are four plant assemblage zones: (1) an early (>10.6 ka BP) zone dominated by Cyperaceae and aquatics; (2) a subsequent zone (~10.6-10.1 ka BP) with emergents (Menyanthes trifoliata,Potentilla palustris,Scirpus validus) and fewer aquatic plants; (3) an interval between ~10.1 and 9.8 ka BP dominated byDrepanocladus aduncus; and (4) a zone between ~9.8 and 9.1 ka BP withMenyanthes trifoliataandEquisetum.These data indicate a gradual decline in water depth between 10.6 and 10.1 ka BP due to deepening of one or more outlets of glacial Lake Hind. From ~10.6 to 9.1 ka BP, the importance ofMenyanthesrecords pronounced, seasonal, flooding. Furthermore, lack of evidence for complete drawdown and terrestrialization in the basin – despite local and regional evidence for postglacial warming – indicates that this wetland was minimally impacted by climate change up to at least 9.1 ka BP. Persistence of very wet conditions locally is consistent with recent results from south-central Saskatchewan, and may be due to release of meltwater from stagnant ice. However, frequent low-energy flooding of the basin by the Souris River is more plausible. In general, the apparent insensitivity of aquatic habitats to abrupt climate change in some locales on the Canadian Prairies demonstrates the potential long-term mitigating effects of local hydrological factors.

show abstract

“…The Matador location was probably ice-free since 14 000 BP whereas Regina Beach and Hidden Valley have been ice-free since approximately 12 500 BP (Christiansen 1979). According to Kehew and Teller (1994), however, deglaciation happened later, with the Qu'Appelle system in Saskatchewan formed approximately 10 700 before present. The Regina Beach study area may be associated with a Tunnel Valley system with date of initial formation prior to northward retreat of ice (Beaney 2002).…”

Section: Discussionmentioning

confidence: 99%

Equivalent latitude for prediction of soil development in a complex mapunit

WhitsonIvan¹

2015

Can. J. Soil. Sci.

View full text Add to dashboard Cite

Whitson, I. R. 2015. Equivalent latitude for prediction of soil development in a complex mapunit. Can. J. Soil Sci. 95: 125–137. Soil pattern in the Hillwash complex mapunit from Saskatchewan is too variable to be resolved spatially with conventional mapping approaches. The equivalent latitude metric allows identification of an index based on gradient and aspect that ranks sites based on differences in direct radiant energy inputs. Effects on soil development with reference to surface horizon color and soil classification were investigated at three study areas in southern Saskatchewan. At the first, sites with equivalent latitude greater than local latitude (north group) had a higher frequency of darker soil colors than sites where equivalent latitude was less than local latitude (south group). Black Chernozemic profiles made up nine of 13 profiles from the north group compared with none in the south group or in local controls. Similar color and classification trends in a north sample group were found at a second study area. Results from a third study area more than 200 km away and in a drier ecoregion found similar differences albeit a different set of subgroups between north and south group soils at that location. The equivalent latitude metric could be used in a GIS context to better resolve soil characteristics within this complex mapunit, but only after additional work to include a climate parameter such as potential transpiration into the model.

show abstract

History of late glacial runoff along the southwestern margin of the Laurentide Ice Sheet

Cited by 59 publications

References 17 publications

Streamlined islands and the English Channel megaflood hypothesis

Streamlined islands and the English Channel megaflood hypothesis

Paleoecology of an Early Holocene Wetland on the Canadian Prairies

Equivalent latitude for prediction of soil development in a complex mapunit

Contact Info

Product

Resources

About