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Valders Till

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Journal Article
Journal: GSA Bulletin
Published: 01 December 1980
GSA Bulletin (1980) 91 (12): 713–723.
...ROBERT F. BLACK Abstract The well-documented and dated post-Twocreekan drift (classical Valders Till) of the Green Bay–Fox River-Lake Winnebago lowland is traced to an interlobate junction with the Lake Michigan Lobe that overrode the Valders type locality. Additional support for the post...
Journal Article
Journal: Geology
Published: 01 March 1978
Geology (1978) 6 (3): 136.
Journal Article
Journal: Geology
Published: 01 October 1975
Geology (1975) 3 (10): 587–590.
...David M. Mickelson; Edward B. Evenson Abstract Red tills deposited by post-Twocreekan (Valderan) ice advances of the Green Bay and Lake Michigan Lobes in eastern Wisconsin do not extend to the type locality of the Valders till. The post-Twocreekan ice of the Lake Michigan Lobe terminated at the Two...
Journal Article
Journal: GSA Bulletin
Published: 01 July 1973
GSA Bulletin (1973) 84 (7): 2281–2298.
..., Wisconsin, demonstrates a pre-Twocreekan age for these drift deposits. Stratigraphic relations in Manitowoc County, Wisconsin, strongly suggest that the Glenwood deposits there are younger than the type Valders till at Valders, Wisconsin, and that the type Valders deposits are pre-Twocreekan in age...
Journal Article
Journal: GSA Bulletin
Published: 01 July 1957
GSA Bulletin (1957) 68 (7): 831–880.
.... Above this drift lies the till of a later substage, tentatively named Valders because its relation to the Mankato drift of Minnesota is unknown. Separating the two drifts is the Forest Bed which indicates a retreat of the ice margin far enough to free from ice both the Straits of Mackinac and the entire...
Journal Article
Journal: GSA Bulletin
Published: 01 April 1982
GSA Bulletin (1982) 93 (4): 289–296.
.... The Ozaukee and Haven tills underlie the Two Creeks Forest Bed. The younger Valders Till, although not present at a forest bed locality, is also pre-Twocreekan age based on several arguments including correlation with tills of the adjoining Green Bay Lobe. One Greatlakean age till, the Two Rivers Till, has...
Journal Article
Published: 01 December 1959
Journal of Sedimentary Research (1959) 29 (4): 540–554.
... of movement were probably controlled by mutual interference as well as by preexisting topography. The Wisconsin glacial history in Minnesota was marked also by repeated advances of the several ice lobes. In the case of the Superior lobe the tills assigned to the Cary and Valders advances may be identified...
Published: 01 January 1990
DOI: 10.1130/SPE251-p51
... (Greatlakean) in age. Unlike the age of the Valders till, which has been hotly debated (whether pre-Twocreekan or post-Twocreekan) during the past 15 years, the age of the Two Rivers till has not been the subject of direct controversy. However, the age of the Two Rivers till at its type locality has...
Journal Article
Journal: GSA Bulletin
Published: 01 April 1982
GSA Bulletin (1982) 93 (4): 297–302.
...-creekan wood at one locality, is correlative with the Valders Till of the Lake Michigan lowland, as is the age-equivalent Kirby Lake till. One Greatlakean till, correlative with the Two Rivers Till of the Lake Michigan lowland, overlies forest beds at several localities. Geological Society of America...
... during Two Creeks time. It would have been the Petoskey-Cheboygan lowland, according to this interpretation, that drained the low-level Two Creeks lake from Lake Michigan to Lake Huron. Furthermore, in northern Cheboygan County red clayey till, formerly considered to be unique in this area to the Valders...
Published: 01 January 1973
DOI: 10.1130/MEM136-p71
... an extension of the ice coming down Huron Basin, and ice from both basins participated in these sublobes. A review of the studies of Wisconsin-age deposits in the area of the three lobes indicates the emphasis that has been placed on investigations of tills by multiple methods, on paleontological studies...
Journal Article
Published: 01 December 1972
Canadian Journal of Earth Sciences (1972) 9 (12): 1735–1755.
...John S. Mothersill; Patrick C. Fung Abstract The late Pleistocene sediments of the northern Lake Superior basin consist of a basal reddish till, deposited during the Valders substage, unconformably overlain by a sequence grading upwards from grayish red, silty clay interbedded with thin sand...
Journal Article
Journal: Geology
Published: 01 January 2015
Geology (2015) 43 (1): 23–26.
... constrain northward ice retreat. All of the sampling sites had minimal till thickness with local bedrock at or near the surface; the only exceptions are the northern Green Bay lobe sites where boulder surfaces were sampled from the LGM moraine away from ice-collapse features. Fifty (50) surface samples...
FIGURES
Journal Article
Journal: GSA Bulletin
Published: 01 December 2002
GSA Bulletin (2002) 114 (12): 1581–1591.
... been little postglacial erosion of these sites. The sites were also selected because they are topographically high in the landscape (10–60 m above the average terrain's elevation) and probably have had little loess, till, or snow cover in the time since deglaciation (detailed site description available...
FIGURES | View All (7)
Journal Article
Published: 05 June 2019
Canadian Journal of Earth Sciences (2020) 57 (2): 292–305.
... Lake Huron ( Godby 2012 ). Local soils are predominantly sandy, having formed in morainic and other stagnation deposits of coarse-textured sandy tills and glacial outwash ( Godby 2012 ; Fig. 2 ). The current model of Late Pleistocene deglaciation for the region has the Silver Lake area being...
FIGURES | View All (7)
Journal Article
Published: 05 December 2012
Canadian Journal of Earth Sciences (2013) 50 (4): 483–493.
... (the reproductive structure of the green algae), within the bottommost sample, and the one above (2890) point to highly calcareous, shallow water at the site, probably due to CaCO 3 from within the calcareous tills of the region. The relatively high water levels at the site from ≈11 720 to 11 460 cal years BP...
Journal Article
Published: 13 January 2016
Canadian Journal of Earth Sciences (2016) 53 (3): 321–330.
... the Archean bedrock ( Teller and Thorleifson 1983 ). Thin, sandy till or gravel covers the bedrock in many areas ( Zoltai 1965 ). Some channels have been eroded deeply (<100 m) into the Proterozoic diabase (e.g., Devil’s Crater in the Kaiashk channel complex; Fig. 1 ). Some are shallow channels choked...
FIGURES | View All (4)
Journal Article
Published: 29 October 2021
Canadian Journal of Earth Sciences (2022) 59 (11): 826–846.
... the types of coastal landforms described and compiled in this paper for two abandoned strandlines located above the shore of a modern water body. Common features include (a) wave-eroded bluffs in glacially deposited sediment (e.g., diamicton, or till), (b) beach ridges of sand and gravel with some boulders...
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