Wisconsinan

David J. W. Piper, Adam Macdonald, Timing and position of Late Wisconsinan ice-margins on the upper slope seaward of Laurentian ChannelChronologie et emplacement des marges glaciaires sur le talus supérieur au large du Chenal laurentienCronología y localización del margen glaciar durante el periodo wisconsiniano tardío de la vertiente ...

Glenn S. Grothman (/ ˈ ɡ r oʊ θ m ə n / GROHTH-mən; born July 3, 1955) is an American attorney and politician serving as the U.S. representative from Wisconsin's 6th congressional district.A member of the Republican Party, he was first elected to his seat in 2014.. Grothman represented the 58th district in the Wisconsin State Assembly from 1993 until 2005 and was vice chair of the ...The late Wisconsinan history of the Great Valley, Pennsylvania and New Jersey, and the age of the 'terminal moraine', ln: Evenson, E.B. (ed.), Friends of the Pleistocene Field Conference 48 th Guidebook, 1-59. Crowl, G.H. (1981). Glaciation in north-central Pennsyl- vania and the Pine Creek Gorge, ln: Berg, T.M. and others (eds), Geology of ...In the Delaware Valley of New Jersey and eastern Pennsylvania the late Quaternary history of colluviation, fluvial adjustment, and soil formation is based on the ages of pre-Wisconsinan soils and glacial deposits which are indicated by feld relationships and inferred from mid-latitude climate changes indicated by marine oxygen-isotope records.Apr 1, 2005 · The Wisconsinan Stage is aptly named for we cannot identify with certainty any non-reworked or non-buried Pleistocene deposits of pre-Wisconsinan age in the state (Black 1962). 1 The area of west-central Wisconsin, where widespread pre-Wisconsinan deposits were shown for several decades on glacial maps, has only recently been reevaluated (Black ... The stratigraphy indicates a Middle Wisconsinan or greater age. A finite 14C age of 48.3 ± 0.8 ka (QL-1215) was later supplemented by a TL date of 57 ± 9 ka, but perhaps as old as 300 ka.The Wisconsinan Terminus transects the basin into two regions (Fig. 1). Northern watersheds above the glaciation boundary (glaciated watersheds) are characterized by low gradient streams draining mostly flat or gently rolling terrain (Daniel et al. 2010). Southern watersheds that were unaffected by the Wisconsinan glaciation …

The Wisconsinan Age (Altonian Subage) began as Roxana Silt (loess) was deposited under periglacial conditions. The vegetation was characterized by coniferous trees that grew in weakly developed, often organic-rich, cryoturbated soils. Periglacial conditions persisted during the Altonian and Farmdalian Subages, from before 50 ka to about 25 ka ...The Mt Logan Holocene—late Wisconsinan isotope record: tropical Pacific—Yukon connections David Fisher , Erich Osterberg , […] , Art Dyke , Dorthe Dahl-Jensen , Mike Demuth , Christian Zdanowicz , Jocelyne Bourgeois , Roy M. Koerner , Paul Mayewski , Cameron Wake , Karl Kreutz , Eric Steig , James Zheng , Kaplan Yalcin , Kumiko Goto-Azuma ...Wisconsinan Glaciation. The last ice advance into Ohio, the Wisconsin Glaciation, began around 35,000 years ago and ended roughly 12,000 years ago, when ice retreated out of the Lake Erie Basin. Ice reached its maximum extent in Ohio around 26,000–24,000 years ago during a time known as the Last Glacial Maximum (LGM). During this time ... Illinoian rather than Wisconsinan dispersal from North America into Asia. There is also some evidence for the pre-Illi-noian presence of longnose suckers in central North America. Miller et al. (1993) recorded Catostomus from pre-Illinoian deposits in south-ern Indiana. They did not identify their frag-mentary material to species; however ...Champlain Sea history is directly linked to Late Wisconsinan deglacial episodes. Champlain Sea Phase I (Charlesbourg Phase) began in the Québec area at about 12.4 ka. It represented a western extension of the Goldthwait Sea between remnantAbout the Alaska PaleoGlacier Atlas. Our goal is a comprehensive and consistent overview of former glacier limits across Alaska. Our hope is to facilitate outreach, education, and interdisciplinary research in the fields of geology, geography, biology, archeology, and natural history. In the early 2000s, decades after the pioneering Alaska-wide ...

At two sites in Alberta, wood in lake and river sediment indicate that this interval began some time prior to 50,000 BP (Fenton, Alberta Geological Survey, unpublished). LATE WISCONSINAN EVENTS Phase D The long, nonglacial middle Wisconsinan interval was brought to an end by an advance of the ice sheet culminating about 20,000 BP (Figs. 1 and 4).Late Wisconsinan and Holocene fauna from Smith Creek Canyon, Snake Range, Nevada. Transactions of the San Diego Natural History Museum (1982) in press. Google Scholar. Mehringer, 1967. P.J. Mehringer Jr. Pollen analysis of the Tule Springs area, Nevada. Nevada State Museum Anth. Paper, 13 (1967), pp. 129-200.This book is the second of three volumes in which the recent knowledge of the extent and chronology of Quaternary glaciations has been compiled on a global scale. This information is seen as a fundamental requirement, not only for the glacial community, but for the wider user-community of general Quaternary workers. In particular the need for accurate ice-front positions is a basic requirement ...Late Wisconsinan glaciation of New England: A proceeding volume of the symposium: Late Wisconsinan glaciation of New England held at Philadelphia, Pennsylvania March 13, 1980: Authors: Grahame J. Larson, Byron D. Stone: Publication Type: Book: Publication Subtype: Conference publication: Index ID: 70209295: Record Source: USGS Publications ...Flemingdon Park. Flemingdon Park is a community in Toronto, Canada located in the city's North York district (East York). The community is named after its original owner, Robert John Fleming (who was also the Mayor of Toronto from 1892–1893 and 1896–1897) and the Don river. The bigger layer on the map shows the entire community …Wisconsinan units associated with the activity of the Lake Michigan Lobe dur­ ing the Woodfordian Subage. Several unnamed, undifferentiated, and informal units of glacial, glaciofluvial, lacus­ trine, and eolian origin are also known to be present. The Altonian Substage (Early Wis­ consinan) is represented by the Wal­

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N2 - Sediments, soils, and fossils are used to interpret paleoenvironmental conditions during the last interglacial-glacial transition in Illinois. The sediments include the classic Sangamonian-Wisconsinan and Wisconsinan/ Farmdalian-Woodfordian successions; both consist of loess overlying pedogenically modified or generally colluviated sediment.2. The last period Glaciation that affected the Kawartha Lakes Region was the Wisconsinan Glaciation, occurring approximately 10,000 years ago. 3. Name three visible manifestations (evidence) of glaciation that you observed on today field trip. Describe the glacial process by which it was created. Following are thThe extent and behaviour of the southeast margin of the Laurentide Ice Sheet in Atlantic Canada is of significance in the study of Late Wisconsinan ice sheet-ocean interactions. Multibeam sonar imagery of subglacial, ice-marginal and glaciomarine landforms on German Bank, Scotian Shelf, provides evidence of the pattern of glacial-dynamic events in the eastern Gulf of Maine.The youngest of the several episodes to have impacted the Great Lakes basin is termed the Wisconsinan episode which lasted from about 55,000 to 10,000 years ago. The maximum advance occurred about 20,000 years ago (Figure 5). During this advance, unconsolidated glacial debris left after retreat of previous glacial episodes wasThe transition from Middle Wisconsinan to Late Wisconsinan is imprecisely dated in eastern Beringia, but floral and faunal data indicate that conditions changed from interstadial to glacial by about 29 kyr BP (Hamilton and Fulton, 1994, Anderson and Lozhkin, 2001).

Jan 10, 2017 · The Wisconsinan and Holocene Stages contain abundant assemblages of both aquatic and terrestrial mollusks. Fossil vertebrates have also been collected from Pleistocene deposits at many localities. Although the remains of large proboscidians, such as mammoths and mastodons, have attracted the most attention, remains of smaller mammals ... These rocks are overlain by glacial deposits from Wisconsinan age and earlier glaciations and unconsolidated sediment of recent age. All of the glacial and unconsolidated sediments and sedimentary rocks located within the boundary of the study area are included within the Lake Michigan Basin model. The sedimentary rocks within …Study with Quizlet and memorize flashcards containing terms like ________ is one of the two major flow mechanisms in a glacier., ________ are both deposited by meltwater streams., Approximately how long ago did the last of the great North American ice sheets melt? and more.Dec 31, 1992 · In all areas studied, deposits of late Wisconsinan age are obvious; deposits of late Illinoian ag Varied records of early Wisconsinan alpine glaciation in the western United States derived from weathering-rind thicknesses | U.S. Geological Survey T1 - Characteristics of Wisconsinan glacial tills in Indiana and their influence on argillic horizon development. AU - Franzmeier, D. P. AU - Bryant, R. B. AU - Steinhardt, G. C. PY - 1985/1/1. Y1 - 1985/1/1. N2 - In relatively young soil landscapes the parent material largely controls the properties of soils formed on it.A major pre-Wisconsinan glacial event is the only possible source of the lower till on Nantucket Island, Massachusetts. The till occurs near the late Wisconsinan drift border and below fossiliferous marine beds of oxygen-isotope stage 5 (Sangamonian) age. It is considered to be Illinoian in age, but the evidence is tenuous. The till is correlated with the lower till of New England, and its presencInitially, Rampino and Sanders (1976) assigned it the mid-Wisconsinan and thought it is correlative with the Portwashingtonian warm interval of Sirkin and Stuckenrath (1980). In light of Wehmiller's amino-acid racemization results (reported in Ricketts, 1986), however, we now think the Wantagh is pre-Wisconsinan, possibly Sangamonian.Sediments of Late Wisconsinan age SYMBOL GEONUM GEOABB Description (113, 112, ct , Continuous Till ) Continuous till generally greater than 20 feet thick. May be as much as 200 feet thick. Grain size of matrix generally reflects underlying bedrock. Silty sand to sandy till forms on gneiss, sandstone, quartzite, and conglomerate; silty till ...Wisconsin has an online application that allows insurance underwriters to file motor carrier insurance. To get set up follow the steps below. If you do not yet have a WAMS user ID, follow both steps A and B. If you already have an active WAMS user ID, skip to Step B. A. Create and activate a WAMS User ID - view the video (3:10)@article{osti_5881881, title = {Wisconsinan and Sangamonian climate interpreted from fossil ostracodes and vegetation in south-central Illinois}, author = {Curry, B B and Forester, R M and Zhu, Hong and Baker, R G}, abstractNote = {The interpretation of paleoclimate during the late Illinoian, Sangamonian, and Wisconsinan Ages in the region of present south-central Illinois has been based on ...614-265-6576. 2045 Morse Road. Columbus, OH 43229. Date of this Data is: 10/22/2021.

Analysis of 56 outcrop exposures in cut banks along the Nottawasaga River in southern Simcoe County, Ontario, Canada, has led to the identification of eight stratigraphic units (SU1–SU8) that represent a record of changing environmental conditions during deglaciation and exhibit strong controls on shallow groundwater flow in the region.

Glacial deposits do not overlie the alluvial sediments in which these paleosols are vii viii Lionel E. Jackson, Jr. found. Karlstrom found these dates to be corroborated by the greater degree of proftle develop- ment in the post-early Wisconsinan soils of this region as compared to post-late Wisconsinan soils found in the same region.Red Drift (Pleistocene, Pre-Wisconsinan) PGD: Gray Drift (Pleistocene, Pre-Wisconsinan) LR: Weathering Residuum Over Bedrock (Pleistocene, Pre-Wisconsinan) WAT: Water/Lakes: COLORCODE-This field is no longer used. Minnesota Geological Survey: TEXT-Descriptive information for the Map Unit Code: Minnesota Geological Survey: GLACIAL_LO: enumerated ...Looking at the Glacial Geologic Soils Map of Ohio that's posted under Module 4, during the peak of the last ice age (the Wisconsinan stage glaciation), glaciers ...deposits and geomorphology in this area are a resu lt of the Wisconsinan glaciation, particularly the Delavan Sublobe, which was the westernmost subl obe of the Lake Michigan Lobe [13,20–23].Abstract. Analysis of borehole temperature and Greenland Ice Sheet Project II ice-core isotopic composition reveals that the warming from average glacial conditions to the Holocene in central Greenland was large, approximately 15°C. This is at least three times the coincident temperature change in the tropics and mid-latitudes.Wisconsinan units associated with the activity of the Lake Michigan Lobe dur­ ing the Woodfordian Subage. Several unnamed, undifferentiated, and informal units of glacial, glaciofluvial, lacus­ trine, and eolian origin are also known to be present. The Altonian Substage (Early Wis­ consinan) is represented by the Wal­14 shk 2023 ... Physical map of Wisconsin showing major cities, terrain, national parks, rivers, and surrounding countries with international borders and ...Peat discovered below drift near Titusville, Pennsylvania, formerly called "inner Illinoian," has a carbon-14 age of 31,400 ± 2,100 years. The overlying drift, herein named Titusville Till, is therefore not Illinoian but is "late early Wisconsinan" or late Altonian of the Lake Michigan lobe classification.

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The history of Late Wisconsinan glaciation in southwestern Manitoba has been established by identifying and correlating ice-laid lithostratigraphic units in the subsurface. Five Late Wisconsinan tills are defined on the basis of their texture, mineralogic composition, and stratigraphic position. These new formations are, from youngest to oldest ...wisconsinan (17,000-22,000 yrs.) recent to late illinoian (0-198,000 yrs.) late illinoian (132,000-198,000 yrs.) pre-illinoian (>770,000 yrs.) stratified drift ashtabula till hiram till unnamed tills lavery till kent till olean till titusville till unnamed tills mapledale till glacial deposits of pennsylvania explanation symbols map 59Remapping of Wisconsinan limit. the Late Wisconsinan limit by Crowl & Sevon (1980) and the radiocarbon dates mentioned above have convinced all that the Late Wisconsinan limit is the same age in both north-eastern and north-western Pennsylvania and that age is about 20 ka.The most-recent glacier, the Late Wisconsinan glacier, covered all of the eastern and northern parts of the state between about 25,000 and 20,000 years ago. The edge of the Late Wisconsinan glacial deposits is well defined and coincides with the edge of the glacier. The ice at the edge of the glacier was thin, the ice presumably thinning to ...Wisconsinan in age and are conventionally thought to relate to the Illinoian glaciation, but they may in­ stead relate to other pre-Wisconsinan stages. At present there is no convincing rationale to dis­ criminate among the pre-Wisconsinan events in southern Indiana. ICE-MARGINAL DRAINAGE IN SOUTHWESTERN INDIANAWisconsin, constituent state of the United States of America. Wisconsin was admitted to the union as the 30th state on May 29, 1848. One of the north-central states, …The original datasets are accurate at 1:100,000 scale. The other datasets have been generalized to 1:500,000-scale accuracy for more regional work. A companion dataset consisting of the state and county boundaries of Pennsylvania was compiled from the U.S. Geological Survey (USGS) 1:100,000-scale digital-line-graph (DLG) files for boundaries.Since the Wisconsinan was the most recent glaciation period, evidence, such as moraines, is relatively well preserved. The time of the Wisconsinan glaciation can be estimated through radiocarbon dating of organic matter from below, within and above Wisconsinan glacial deposits. Although radiocarbon dating is by far the most important method for ...SoilWeb: An Online Soil Survey Browser | California Soil Resource Lab. Menu .Free Digital Download. Authors: Henry Gray. This large-format color map depicts the surficial geologic materials deposited during Quaternary time. The map classifies deposits as being from Holocene, Wisconsinan to Holocene, or Pre-Wisconsinan age. Areas with little or no Quaternary deposits are also shown. Scale: 1:500,000; Size: 31" x 43". ….

The classification of the Wisconsinan Stage by Frye and Willman combines into Woodfordian time the intervals Tazewell, Cary, and Port Huron of the Lake Michigan lobe because these three intervals, unlike the Twocreekan that follows, cannot be defined or traced satisfactorily on a stratigraphic basis. Despite thisDansgaard-Oeschger (D-O) cycles are oscillations of the climate system during the Wisconsinan glacial, where the climate switched between a cold glacial climate and a “warm” glacial climate. The glacial climate, which ended around 11,500 years ago, was colder than the present warm period (the Holocene) and variations were of much greater ...A late Wisconsinan marine deposit of nonglacial origin overlies the glaciomarine deposits in Cape Cod Bay. Both deposits indicate that the crust was isostatically depressed below the late Wisconsinan eustatic sea level and that deglaciation and marine submergence occurred simultaneously. Valleys cut into the marine deposits, both glacial and ...pre-Wisconsinan units and likely correspond to an ancient unnamed drift in the East and West Fork basins of the Humptulips River (this study), the Mobray drift, and part of the Weatherwax formation (Carson, 1970) in the Wynoochee River basin. These units are indicated by a subscripted number '2' in the unit symbol.This paper presents evidence to support a pre or early Wisconsinan genesis of a productive karst system beneath the City of Guelph. Guelph has a population of 110,000 and is located in south ...Sediments of Late Wisconsinan age SYMBOL GEONUM GEOABB Description (113, 112, ct , Continuous Till ) Continuous till generally greater than 20 feet thick. May be as much as 200 feet thick. Grain size of matrix generally reflects underlying bedrock. Silty sand to sandy till forms on gneiss, sandstone, quartzite, and conglomerate; silty till ...New data constrain the timing and character of glaciation of eastern Baffin Island, Arctic Canada. Lake sediments radiocarbon dated to between 14 and >52 ka, coupled to 10 Be and 26 Al exposure ages >35 ka from adjacent moraines and bedrock, demonstrate that some coastal uplands remained above the limits of continental glaciation throughout oxygen isotope stage 2.The Wisconsinan Terminus transects the basin into two regions (Fig. 1). Northern watersheds above the glaciation boundary (glaciated watersheds) are characterized by low gradient streams draining mostly flat or gently rolling terrain (Daniel et al. 2010). Southern watersheds that were unaffected by the Wisconsinan glaciation …27 qer 2016 ... LATE WISCONSINAN GLACIATION OF. SOUTHERN NEW ENGLAND: TIMING AND ... WISCONSINAN STAGE – Last glacial age of the. Pleistocene (70,000 yBP ...Halton Till and Glacial Lake Iroquois lacustrine sand and gravel deposits are the major surficial materials exposed at the surface of Scarborough Bluffs in South-Central Ontario. Luvisols formed in these deposits have different morphologies, Wisconsinan, ... Wisconsinan glacial advance in the central St. Lawrence River Valley and the resulting glacial Lake Scarborough Formation. From the 80 ka minimalU/Th age of ..., 2nd Place: Wisco. Coming in at just under 15%, apparently people really say Wisco. The name's origins remain a mystery, whether it was hipsters who were trying to become influencers, or an advertising initiative to sell a "Wisconsin lifestyle.". Those who say this mentioned they mostly write it on social media, or it depends on the audience., Wisconsinan in age and are conventionally thought to relate to the Illinoian glaciation, but they may in­ stead relate to other pre-Wisconsinan stages. At present there is no convincing rationale to dis­ criminate among the pre-Wisconsinan events in southern Indiana. ICE-MARGINAL DRAINAGE IN SOUTHWESTERN INDIANA, The terrace is an erosional unconformity on which Late Wisconsinan (Port Bruce and Mackinaw) glacial units crop out. Beds of massive diamictons, and glaciolacustrine sediments containing parallel reflections, crop out alternately from west to east, resulting from an oscillatory ice retreat. These beds correlate with the Port Stanley …, Glacial, periglacial, alluvial, and aeolian sediments from pre-Illinoian, Illinoian, and Wisconsinan Glaciations are present, but age control for all except Late Wisconsinan events is limited to palaeosols and palaeomagnetic data. The chapter reviews that glacial sediment covers approximately three fourths of the 145,000-km2 land surface in ..., An isotopic paleotemperature record for late Wisconsinan time in northeast Iowa Geology. Limits of U-series analysis: Phase 1 results of the Uranium-Series Intercomparison Project Geology. Uranium-series Chronology and Environmental Applications of Speleothems Reviews in Mineralogy and Geochemistry ..., Throughout the Wisconsinan Episode, large lakes containing glacial meltwater formed along the margins of the ice lobes (Fig. 2). Glacial Lake Grantsburg was dammed north of the Twin Cities by the Grantsburg sublobe. Farther to the north, glacial Lakes Upham and Aitkin were formed in front of the St. Louis sublobe., SoilWeb: An Online Soil Survey Browser | California Soil Resource Lab. Menu ., Discussion of the Glacial Limits. The limit of the most recent glaciation or the ‘Terminal Moraine’ was traced across the entire state of Pennsylvania by Lewis (1884) and assigned a Late Wisconsinan age by Chamberlin (1883). In north-western Pennsylvania, that limit was remapped and refined by Shepps et al. (1959)., The Ice Age Trail Alliance (IATA) [exit DNR] is a nonprofit, volunteer organization whose mission is to create, support and protect the many segments of the Ice Age Trail. The IATA (formerly the Ice Age Park and Trail Foundation), was established in 1958 when the first segments of the Ice Age Trail were being built in the Kettle Moraine Forest., Wisconsinan marine deposit of nonglacial origin overlies the glaciomarine deposits in Cape Cod Bay. Both deposits indicate that the crust was isostatically depressed below the late Wisconsinan eustatic sea level and that deglaciation and marine submergence occurred simultaneously. Valleys cut into the marine, The University of Kansas is a public institution governed by the Kansas Board of Regents., A complex of glacial landforms on northeastern Victoria Island records diverse flows within the waning late Wisconsinan Laurentide Ice Sheet over an area now divided by marine straits. Resolution of this ice flow pattern shows that dominant streamlined landforms were built by three radically different ice flows between 11,000 and 9000 BP., The high concentration of soluble impurities in Wisconsinan ice from the Dome C (Antarctica) ice core (and perhaps other ice cores) probably causes the small grain-sizes observed in that ice. Microparticles have little effect on grain growth in ordinary ice. In ice layers that appear dirty, Wisconsinan Glaciation. The last ice advance into Ohio, the Wisconsin Glaciation, began around 35,000 years ago and ended roughly 12,000 years ago, when ice retreated out of the Lake Erie Basin. Ice reached its maximum extent in Ohio around 26,000–24,000 years ago during a time known as the Last Glacial Maximum (LGM). During this time ..., In all areas studied, deposits of late Wisconsinan age are obvious; deposits of late Illinoian age (ca. 140 ka) also seem to be present in each area, although independent evidence for their numerical age is circumstantial. The weathering-rind data indicate that deposits that have intermediate ages between these two are common, and ratios of ..., Since this early work and Goldthwait's compilation of glacial striations and erratic dispersal fans across New York and New England (in Antevs, 1922), geologists have recognized that ice flow across New England during the late Wisconsinan was generally towards the southeast and south., During the last glaciation, shifts in climate altered the world’s vegetation patterns from what they had been prior to the formation of the ice sheets. However, the types of vegetation present during the glaciation are similar to those found today. Many such trees, mosses, flowering plants, insects, birds, shelled mollusks, and mammals are ..., the Wisconsinan, then a greater extent of the . Symbos-Cervalces . faunal province is to be expected in Nebraska. ACKNOWLEDGMENTS . Figures 1 and 2 were prepared by Mary Tanner and Figure 3 was drawn by Debra K. Bennett. The support of The Institute for Tertiary-Quaternary Studies is appreciated., We present 32 new cosmogenic 10 Be exposure ages from a moraine sequence deposited during the Wisconsinan glaciation in the Swift River valley, Revelation Mountains, western Alaska Range. 10 Be ages from an early Wisconsinan [Marine Isotope Stage 4] moraine average 59.7 ± 3.6 ka (n = 9; excluding one outlier), and 10 Be ages from a late Wisconsinan [Marine Isotope Stage 2] terminal moraine ..., Seven optical ages from two dune fields in northern Alberta and British Columbia record Late Wisconsinan dune activity between about 13.9 and 10.3 ka. Sand dunes in the Fontas River area of ..., Wisconsinan substage, about 21,000 years ago. The action of each ice sheet modified the landscape by deeply scouring valleys, wearing down and streamlining bedrock ridges, hills, and slopes, and by eroding most preglacial soil and loose rock. Scratches and grooves cut in bedrock, called striations, record the direction of glacier flow. , A geographical information systems (GIS) database has been compiled for pre-Wisconsinan ice margins and related glacial geomorphology in the central United States. The GIS database was assembled from various published and unpublished sources; it includes glacial margins of different ages, meltwater channels, pre-glacial (buried) valleys ..., The moraines overlie upper Wisconsinan glacialmarine silty clay and are composed mostly of subaqueous ice-contact deposits and outwash. They were formed below sea level in water depths of as much as 120 m during fluctuations of a calving ice front. The moraines are late Wisconsinan in age and were formed after the Cambridge readvance, about ..., Wisconsinan history of northern Maine are proposed to explain the observed relationship between the Van Buren and Mars Hill Drifts: a) Separate Ice_Cap Model: A separate ice cap developed in central Maine during mid Wisconsinan time which eventually expanded and interacted with the advancing Laurentide Ice Sheet from north , Wisconsin Glacial Stage, also called Wisconsin glaciation, most recent major division of Pleistocene time and deposits in North America, which began between about 100,000 and 75,000 years ago and ended about 11,000 years ago. It was named for rock deposits studied in the state of Wisconsin., Bradley, D.C. 1981 Late Wisconsinan mountain glaciation in the northern Presidential Range, New Hampshire Arctic and Alpine Research 13 319 - 327 CrossRef Google Scholar Bradley , D.C. 1982 Reply to Robert F. Gerath and Brian K. Fowler's discussion of "Late Wisconsinan Mountain Glaciation in the Northern Presidential Range, New Hampshire ..., During late Wisconsinan retreat, moraine deposits dammed the valley at the Narrows to form Lake Albany. From 19 to 15.5 kyr BP (all dates in 14C yr), Hudson drainage was directed eastward into the ..., The Wisconsinan deglaciation of southern Saskatchewan and adjacent areas. Canadian Journal of Earth Sciences, 16 (1979), pp. 913-938. CrossRef View in Scopus Google Scholar. Clayton and Moran, 1982. L. Clayton, S.R. Moran. Chronology of Late Wisconsinan glaciation in middle North America., Scenario - what do you do ??? You're walking in a perceved (by Law Enforcement) high crime area and your stopped while walking down the sidewalk by Law Enforcement, and the officer tells you there was a crime near the area your walking, and your OCing at the time, and the officer states he believes you fit the discription of the suspect and they detain you and ask for identification., At two sites in Alberta, wood in lake and river sediment indicate that this interval began some time prior to 50,000 BP (Fenton, Alberta Geological Survey, unpublished). LATE WISCONSINAN EVENTS Phase D The long, nonglacial middle Wisconsinan interval was brought to an end by an advance of the ice sheet culminating about 20,000 BP (Figs. 1 and 4)., Red line marks the maximum extent of Wisconsinan glaciation. Shown are the locations of Crevice Cave, pre-Wisconsinan kettle basins in Illinois, and the late-Wisconsinan (15 to 14 ka) Des Moines Lobe in Iowa. Crevice Cave is Missouri's longest known cave and contains more than 45 km of mapped passages. The stalagmites we …, Late Wisconsinan and Mooers, H.D., Johnson, M.D. and Matsch, C.L. (1992). Holocene history of the Lake Superior basin. In: Karrow, Contributions of glacial meltwater to the upper Mississippi P.F. and Calkin, P.E. (eds), Quaternary Evolution of the River system from the Des Moines and Superior Lobes and Great Lakes, pp. 17-32. Geological ...