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Showing 1 to 20 of 35 for “"glacial deposits"”.
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Description and Genesis of selected Glacial Deposits, Walsh County, North Dakota
<p>Glacial deposits and features in central Walsh County, North Dakota were investigated during the summer of 1965 to determine both their origin and their relationship to the history of glacial Lake Agassiz. The deposits included till and lake sediments exposed in cuts along the Park River, while …
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Sedimentary Size Analysis of Glacial Deposits in the South-Half of Kidder County, North Dakota
… deals with the sedimentary size analysis of glacial deposits in the southern half of Kidder County, North Dakota. An introduction giving a general description and location of the over-all area from which the samples were taken, precedes the methods of analysis. The analysis includes the …
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Hydrogeology of Glacial Deposits Associated With the Buried Mahomet Bedrock Valley of East-Central Illinois
Made available in DSpace on 2014-12-09T20:34:20Z (GMT). No. of bitstreams: 1 6604304.pdf: 5442509 bytes, checksum: 44085bc0e052fe37cb6b4cf301cbbced (MD5) Previous issue date: 1965
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Stratigraphy of the Glacial Deposits in and Adjacent to the Troy Bedrock Valley, Northern Illinois
Made available in DSpace on 2014-12-04T19:14:18Z (GMT). No. of bitstreams: 1 6206177.pdf: 6002112 bytes, checksum: cd5ad61db41aacb07aee566f3ab941c0 (MD5) Previous issue date: 1962
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Slip rate of the West Tahoe Fault and the age of glacial deposits near Lake Tahoe, California
… 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 13.9 to 23.4 …
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Stratigraphy of Paleocene and Pleistocene Sediments Exposed Along Lake Sakakawea in Eastern Dunn and Western and Central Mercer Counties, North Dakota
… Sentinel Butte Formation and Pleistocene glacial deposits of the Coleharbor Group. The dominant sediment type in the Sentinel Butte Formation is thinly-bedded silt. Fine sand, clay, and lignite occur in lesser abundance. Lignite, clay, and peat are most commonly bounded by thinly-bedded …
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A stratigraphical, sedimentologial and palaeoenvironmental analysis of holocene and present-day coastal sedimentation: Wigtown Bay, S.W. Scotland
… record of present and former coastal deposits. Remnant areas of Holocene coastal (including marine) sediments are preserved at the head of marine inlets and estuaries along the northern shore of the Solway Firth and may extend up to 10km inland, indicating significant changes in …
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The Pleistocene History of the Birmingham District
… and Devensian) as well as a variety of non-glacial sediments. Understanding the age of the Pleistocene glacial deposits is critical to reconstructing the palaeoenvironmental history of the district and its relationships with adjacent regions. The exact age of the Middle Pleistocene glacial …
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Quaternary grounding-line fluctuations in Antarctica
… and understanding the transitions between the glacial and interglacial states of the ice sheet is a fundamental step towards predicting its response to future warming. Here, I investigate the history of ice sheet fluctuations in the Ross and Weddell Sea sectors of Antarctica over thousand- to …
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Aggregate potential of Irish south coast offshore palaeovalleys
… truthing sedimentsamples. Surficial sediment deposits display a close fit to industry standard aggregates but considerable temporal variance at depth from vibrocore analysis shows variable marine reworking over time. Marine processes off the south coast diminish the aggregate quality of …
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The Thickness of the Drift in North Dakota with Refrence to the Bedrock Formation
<p>Glacial drift covers the major portion of North Dakota. The drift ranges in thickness from 0 feet to approximately 500 feet, and averages 200 feet. In some areas the drift is conformable to topographic features, however, in other areas where the surface of the bedrock has eroded valleys the …
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Engineering characteristics of soils of Fayette and Union Counties, Indiana, pertinent to residential housing
… of' Fayette and Union counties is covered with glacial deposits, thinly capped with loess, mostly modified by weathering. Bedrock of the Ordovician system underlies soil mantle throughout the two counties, except in a small area west of Fayette County. Most of the soils fall into the great soil …
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The Sediment Sources of Atlantic Shore Beaches between Montauk Point and Democrat Point, Long Island New York USA
… derived and source textures: the distinctive glacial deposits formed in Ronkonkoma moraine at Montauk Point; Headlands section beaches, and Fire Island beaches. Surface feature variability plots and between sample variability plots revealed a more complex pattern of surface feature development …
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Geology of McLean County, North Dakota
… Cannonball Formation is exposed in a few places. Glacial drift, assigned to a new formation, the Coleharbor Formation, occurs throughout the county and reaches a maximum thickness of at least 400 feet in certain preglacial valleys.</p> <p>The eastern part of McLean County, part of the Missouri …
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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
… the existence and extent of Pleistocene glacial deposition in the study area. Gneissic mylonitic granodiorite along the southeastern contact of the Royal Stock intrusion indicates the Anaconda metamorphic core complex detachment zone trends through the center of the map area but …
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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
… the existence and extent of Pleistocene glacial deposition in the study area. Gneissic mylonitic granodiorite along the southeastern contact of the Royal Stock intrusion indicates the Anaconda metamorphic core complex detachment zone trends through the center of the map area but …
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Surface exposure geochronology using cosmogenic nuclides : applications in Antarctic glacial geology
… have been measured in a variety of Antarctic glacial deposits in the McMurdo Sound-Dry Valleys region. The goals of this project were to provide age constraints for Antarctic glacial events, to investigate production mechanisms of 3He, lOBe, and 26 A1 in terrestrial rocks, to constrain the …
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The Neoproterozoic São Francisco Basin, central Brazil: tectonic evolution, paleoclimate, and mineral systems
… was punctuated by globally correlative Sturtian glacial deposits (ca. 717-660 Ma). Copious post-glacial organic matter and pyrite-rich siltstones formed during the subsequent passive margin stage. The overlying Bambuí Group is a Cryogenian-Ediacaran mixed biochemical-siliciclastic succession (ca. …
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Trace Elements and Sulfur Isotope Variations in Endowed and Non-Endowed Porphyry Systems of the Dawson Range Mineral Belt, Yukon Territory
… isotope analyses to distinguish between endowed deposits and non-endowed occurrences. The remote location, poor access, and extensive glacial deposits complicate exploration efforts. The study analyzed fifty-six samples from eight porphyry systems, classifying them into endowed deposits (Casino, …
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