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Showing 1 to 20 of 46 for “"Moraines"”.
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Washboard moraines in northeastern North Dakota
… in glaciated regions of North America. Washboard moraines have, in the past, been confused with similar transverse features such as ribbed moraines and De Geer moraines. No previous work had been done on washboard moraines in North Dakota prior to this study. Objectives of this study were to (1) …
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Time and soil development on lateral moraines, Martin River Glacier, south-central Alaska
… eighteen soil profiles on a series of 21 lateral moraines, were studied to ascertain the relationship of time to soil development. The moraines are located on Charlotte Ridge on the south margin of the Martin River Glacier in south-central Alaska. The elevation of the highest moraine is …
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Assessing the style of advance and retreat of the Des Moines Lobe using LiDAR topographic data
… Des Moines Lobe to form three major end moraines in Iowa--sequentially the Bemis, Altamont, and Algona moraines--are thought to be the result of the lobe surging out of balance with a warming climate. Various styles of hummocky topography, collectively sometimes called stagnation moraine, …
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Glacial Geology of south-central Kidder County, North Dakota
… of Pleistocene series.</p> <p>Three types of moraines, ground, stagnation, and end moraine, are present in the area. Five late Wisconsin and moraines are distinguished and named in this portion of Kidder County. These are, from west to east and oldest to youngest, the Long Lake loop and Sibley …
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Glacial stratigraphy of southeastern North Dakota
… units cross three previously recognized end moraines in southeastern North Dakota: the Grace City, the Oakes, and the Luverne End Moraines. On the basis of the lithostratigraphy of the glacial sediment of southeastern North Dakota, these arcuate ridges may be overridden older terminal …
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Slip rate of the West Tahoe Fault and the age of glacial deposits near Lake Tahoe, California
… The West Tahoe Fault displaces late Pleistocene moraines and glacial deposits along much of its extent. Terrestrial Cosmogenic Nuclide (TCN) surface exposure ages of sixteen boulders were collected from faulted moraines at Cascade Lake. Eight ages from the last-glacial Tioga moraine range from …
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Regolith Erosion at Grinnell Glacier, Glacier National Park
… in western Montana. Due to recent glaciation, moraines are present at the upper elevations throughout the park. These young moraines erode at a rapid pace when first exposed by melting ice due to: age, vegetation cover, local climate, and human/animal activity. Using repeat photography in …
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Pleistocene geology of northern Kidder county, North Dakota
… and Woodhouse Lake loops, and proposed for and moraines deposited by Cary and Mankato ice advances, respectively. The Lake Williams loop consists partially of gravelly till while the Woodhouse Lake loop is essentially of clay till. Deposition of outwash accompanied the formation of these end …
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Characteristics of lateral-frontal moraine formed at Arctic and Alpine glaciers
… stimulated the recession of glaciers world-wide. Moraines developed by valley glaciers provide a sedimentary record of their past response to climatic forcing. Despite the use of moraines for understanding the character and behaviour of former glaciers, our understanding of moraine development is …
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Antarctic glacial chronology : new constraints from surface exposure dating
… boulders, combined with mapping of glacial moraines from three key locations, is used to provide new constraints to Antarctic glacial chronology. The results are used to reconstruct past West Antarctic Ice Sheet (WAIS) geometry and test models of WAIS behavior. Mount Waesche is a volcanic …
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The interaction of climate, tectonics, and topography in the Olympic Mountains of Washington State: the influence of erosion on tectonic steady-state and the synthesis of the alpine glacial history
… curve for lichenometric dating of neoglacial moraines is developed and applied to four moraines at the base of Royal Glacier on Mt. Deception. The moraines range in age from 1839±45, 1895±45, and 1963±45, to less than 20±45 years. The estimated equilibrium line altitude (ELA) for Royal Glacier …
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Geology of southern Nelson County, North Dakota
… of the ice from the McHenry and Cooperstown moraines in the south western corner of the county. The next prolonged stand of the glacier margin occurred at about 12,900 radiocarbon years B.P. depositing the North Viking and Kloten moraines. The Kloten Moraine may be the northward extension of …
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The surficial geology of north-central Kidder County, North Dakota
… South Dakota and crosscutting relationships of moraines, age assignments are suggested. The Sibley Buttes moraine marks a readvance during probable 1st Cary time as indicated by its transection of the Long Lake loop. Small recessional moraines mark positions of stillstand during eastward retreat …
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The surficial geology of southern Logan County, North Dakota
… Excellent examples of end moraine, recessional moraines, ground moraine, outwash plains, meltwater channels, and ice-contact features were mapped. Great areas of “dead ice” or stagnation moraine are found in the central and eastern parts of the area.</p> <p>Evidence in the form of large perched …
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GEOMORPHOLOGICAL MAPPING OF THE K2 AREA, PAKISTAN USING GIS AND REMOTE SENSING
… lakes that formed behind former landslides or moraines are located in several locations. Between Skardu and K2, tributary glaciers deposited lateral and terminal moraines. Thick debris covers most of the glaciers; Baltoro Glacier shows a rough topography with countless supraglacial and …
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GEOMORPHOLOGICAL MAPPING OF THE K2 AREA, PAKISTAN USING GIS AND REMOTE SENSING
… lakes that formed behind former landslides or moraines are located in several locations. Between Skardu and K2, tributary glaciers deposited lateral and terminal moraines. Thick debris covers most of the glaciers; Baltoro Glacier shows a rough topography with countless supraglacial and …
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Glacial geology of western Sheridan County, North Dakota
… include end moraine, ground moraine, washboard moraines, collapsed outwash topography, eskers, and remnant ice-walled channels.</p> <p>The Streeter and Lincoln Valley end moraines, included in the Burnstad Drift, were deposited by a series of glacial advances from the northeast. The lobe that …
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The glacial geology of eastern Sheridan County, North Dakota
… North of the Martin end moraine several “shear” moraines and small area of dead-ice moraines are present. The ice retreated from Sheridan County less than 18,000 years ago.</p> <p>Several large potential sources of ground water are present in eastern Sheridan County, four large outwash plains …
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Cenozoic Evolution of the Gold Creek Basin, Western Montana: Mapping and Documenting the Geology of the Rock Creek Lake 7.5' USGS Quadrangle
… Glaciation consist of narrow, sharp-crested moraines (mean crest width of 5m) with high distal slope angles (average 30°) and primarily consist of relatively unweathered granitic boulders. Deposits interpreted as reflecting the Bull Lake Glaciation are characterized by wide, round-crested …
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Cenozoic Evolution of the Gold Creek Basin, Western Montana: Mapping and Documenting the Geology of the Rock Creek Lake 7.5' USGS Quadrangle
… Glaciation consist of narrow, sharp-crested moraines (mean crest width of 5m) with high distal slope angles (average 30°) and primarily consist of relatively unweathered granitic boulders. Deposits interpreted as reflecting the Bull Lake Glaciation are characterized by wide, round-crested …
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