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Lambert, A.; James, Thomas S.; Thorleifson, Harvey

doi:10.1023/a:1007950603456

Cited by 20 publications

(4 citation statements)

References 32 publications

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“…The deformation pattern of Lake Bonneville's shorelines and shorelines of other paleolakes in the Great Basin (e.g., Lake Lahontan; see captures the effects of both local isostasy and regional tilting due to the loading of the contemporaneous Laurentide ice sheet. Previous studies that have used paleoshoreline evidence to test models of postglacial rebound in North America have mostly been confined to the near-field (e.g., Tackman et al, 1998;Lambert et al, 1998). Therefore, after accounting for local isostasy, more accurately resolving the direction and magnitude of the far-field continental-scale tilt captured by shorelines of western U.S. paleolakes can add an important additional constraint on the ice loading and solid earth deformation history of North America.…”

Section: Discussionmentioning

confidence: 99%

Revisiting the deformed high shoreline of Lake Bonneville

Chen

Maloof

2017

Quaternary Science Reviews

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Since G. K. Gilbert's foundational work in the eastern Great Basin during the late 1800s, the late Pleistocene Lake Bonneville (30-10 ka) has been recognized as a natural laboratory for various Quaternary studies, including lithospheric deformation due to surface loading and climate-forced water balance changes since the Last Glacial Maximum (∼21 ka). Such studies rely on knowledge of the elevations of Lake Bonneville's paleoshoreline features and depositional landforms, which record a complex history of lake level variations induced by deglacial climate change. In this paper, we present (1) a new compilation of 178 elevation measurements of shoreline features marking Lake Bonneville's greatest areal extent measured using high-precision differential GPS (dGPS), and (2) a reconstructed outline of the highest shoreline based on dGPS measurements, submeter-resolution aerial imagery, topographic digital elevation models (DEMs), and field observations. We also (3) devise a simplified classification scheme and method for standardizing shoreline elevation measurement for different shoreline morphologies that includes constraints on the position of the still water level (SWL) relative to each feature type. The deformation pattern described by these shoreline features can help resolve the relative effects of local hydro-isostasy due to the lake load and regional solid earth deflection due to the Laurentide ice sheet, with potential implications for Earth rheology, glacial isostatic adjustment, and eustatic sea level change.

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Section: Discussionmentioning

confidence: 99%

Revisiting the deformed high shoreline of Lake Bonneville

Chen

Maloof

2017

Quaternary Science Reviews

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“…Similar advances, following Upham (1895) with respect to understanding glacial Lake Agassiz, were added in studies, re-interpretations, reviews, and papers in edited volumes. A few include work from Tyrrell (1896Tyrrell ( , 1898, Johnston (1915Johnston ( , 1946, Leverett (1917Leverett ( , 1932, Elson (1957Elson ( , 1967Elson ( , 1983, Prest (1963), Zoltai (1965), Mayer-Oakes (1967, Clayton and Moran (1982), Teller and Clayton (1983), Teller (1987), Smith and Fisher (1993), Thorleifson (1996), Lambert et al (1998), Tackman et al (1998), Teller and Leverington (2004), Teller and Boyd (2006), Rayburn and Teller (2007), Teller (2013), and others.…”

Section: Background and Previous Workmentioning

confidence: 99%

“…Radiocarbon dates from basal organic sediments in small lake basins isolated by the falling waters of Lake Duluth, and spanning the Lake Washburn level (Lake St. Croix, 9420 6 75 years BP, ETH-31000 above; Lily Lake, 9420 6 90 years BP, AA-12529; and Rosslyn Pit, 9380 6 150 years BP, GSC-287 below) (Zoltai 1965 Lake Agassiz -Campbell level Lake Agassiz, during its 5000-year (6000 calibrated year) history, inscribed many strandlines in its basin (e.g., Upham 1895;Johnston 1946;Teller and Leverington 2004), but the Campbell level was chosen because of its well-known and long shoreline extending for about 1000 km along the western margin of Lake Agassiz from about 46°N to 55°N. Gradients of this stranded shoreline have been compared with gradient predictions of GIA models (e.g., Lambert et al 1998;Gowan et al 2016;Roy and Peltier 2017). The shoreline is present on the opposite (eastern) side of the basin for only about 3°of latitude north of its southern outlet and extends to the east about 4°of longitude (Fig.…”

Section: Lake Duluth -Washburn Levelmentioning

confidence: 99%

Reconstruction of isostatically adjusted paleo-strandlines along the southern margin of the Laurentide Ice Sheet in the Great Lakes, Lake Agassiz, and Champlain Sea basins

2022

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Strandlines document the former presence of lakes and a sea in east-central North America along the southern margin of the retreating Laurentide Ice Sheet (LIS). The strandlines of these formerly level water bodies are uplifted to the north and provide evidence of glacial isostatic adjustment (GIA) of the Earth’s crust to the former ice load. We compile published ages and measurements of the present elevation and location of shore features in the strandlines of 8 major paleo-waterbodies from the St. Lawrence Valley to the northern Great Plains in digital format as an aid for the numerical modelling of GIA. Data for eastern water bodies were extracted and digitized from publications during the past 120 years. Digital position co-ordinates were scaled from published maps of survey sites or were determined using Google Earth Pro software. Published data for paleo-lakes Duluth and Agassiz were mainly obtained from field measurements and digital elevation models (DEMs). Two-sigma or 95% probability values are provided for the strandline ages and for isobase (contour) positions representing the deformed water surfaces. Peak strandline gradients reported here were largest at about ca. 13,000 years ago. Lower strandline gradients for older shores may reveal areas closer to the peripheral bulge and areas of thinner ice (lighter crustal loads). Concave upward strandline profiles characterize most paleo-basins whereas a linear uplift profile characterizes the Champlain Sea strandline. Directions of strandline maximum uplift within the former water body basins point towards the thickest part of the LIS near the Québec-Labrador ice dome.

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“…Uplift is an active process in the contemporary southern Manitoba landscape, as revealed by regional water level gauge and geodetic data (e.g., Andrews 1989;Lambert et al 1998;Tackman et al 1999). Tackman et al (1999) estimate that contemporary uplift in southern Manitoba is 10 −9 rad/year, rising toward the northeast at a bearing of 43°C.…”

Section: Relevance Of Differential Upliftmentioning

confidence: 99%

Geomorphic Approaches to Integrated Floodplain Management of Lowland Fluvial Systems in North America and Europe

Hudson¹,

Middelkoop²

2015

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Untitled

Cited by 20 publications

References 32 publications

Revisiting the deformed high shoreline of Lake Bonneville

Revisiting the deformed high shoreline of Lake Bonneville

Reconstruction of isostatically adjusted paleo-strandlines along the southern margin of the Laurentide Ice Sheet in the Great Lakes, Lake Agassiz, and Champlain Sea basins

Geomorphic Approaches to Integrated Floodplain Management of Lowland Fluvial Systems in North America and Europe

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