Results 111 to 120 of about 202 (159)
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Using GIS to Evaluate an Enigmatic Diamicton in the Spring Mountains, Southern Nevada
Professional Geographer, 2003Abstract The Spring Mountains are located in southern Nevada and lie along the western margin of the Las Vegas Valley. A diamicton located approximately 2,590 m (8,500 ft) above sea level in the Spring Mountains contains numerous striated limestone clasts ranging in size from 0.5 cm to 1.0 m.
John G. Van Hoesen, Richard L. Orndorff
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Problems associated with seismic facies analysis of diamicton-dominated, shelf glacigenic sequences
Geo-Marine Letters, 1990Diamicton-dominated shelf glacigenic sequences are characterized on high-resolution seismic records by a structureless to chaotic acoustic texture, often with abundant hyperbolic (point-source) reflections. Existing depositional models, based primarily on seismic data, have been constructed on the basis that this acoustic signature is indicative of ...
M S Stoker
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Sand intraclasts within a diamicton mélange, southern Niagara Peninsula, Ontario, Canada
Journal of Quaternary Science, 1990AbstractSand intraclasts found within diamicton units along the north shore of Lake Erie in the Mohawk Bay area of the Niagara Peninsula would appear to be part of a ‘block‐in‐matrix’ mélange. The intraclasts are undeformed and many exhibit primary bedding structures.
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Sedimentology, 1994
ABSTRACTAlmost 90% of 39 m of core material recovered from Scoresby Sund and the adjacent East Greenland shelf is massive diamicton, interpreted to be formed predominantly by the release of iceberg rafted debris and reworking by iceberg scouring. There is also likely to be a contribution from suspension settling of fines derived from glaciofluvial ...
Julian Dowdeswell
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ABSTRACTAlmost 90% of 39 m of core material recovered from Scoresby Sund and the adjacent East Greenland shelf is massive diamicton, interpreted to be formed predominantly by the release of iceberg rafted debris and reworking by iceberg scouring. There is also likely to be a contribution from suspension settling of fines derived from glaciofluvial ...
Julian Dowdeswell
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Genesis of diamicton in the Oak Creek Formation of south-east Wisconsin, USA
Sedimentology, 1992ABSTRACTThe clayey diamicton of the Oak Creek Formation was deposited by the Lake Michigan Lobe of the Laurentide Ice Sheet during the late Wisconsin deglaciation. Rapid changes in the position of the ice margin may have been facilitated by a subglacial deforming bed.
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Pebble Fabric in an Ice-Rafted Diamicton
The Journal of Geology, 1985Pebble fabric studies on ice-rafted diamictons have been limited to general observations, with authors noting preferences toward vertical, random, or horizontal orientations. To clarify such observations, pebble fabric data were collected from a fossiliferous diamicton of late Pleistocene age located on Whidbey Island, Washington. The ice-rafted origin
Eugene W. Domack, Daniel E. Lawson
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Microstructures in diamictons—evidence of subglacial bed conditions
Geomorphology, 1992Abstract Examination of microstructures within diamictons from southern Ontario, Canada, and southern Bavaria, and Baden-Wurttemburg, Germany reveal evidence illustrative of certain subglacial bed conditions. The microstructures from Ontario were obtained from a complex glacial melange unit that forms the internal structure of an isolated drumlin ...
J. Menzies, A.J. Maltman
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Paleobiology of the Sand Beneath the Valders Diamicton at Valders, Wisconsin
Quaternary Research, 1998Previously undescribed pollen, plant macrofossils, molluscs, and ostracodes were recovered from a 2.5-m-thick glaciolacustrine unit of silty sand and clay at Valders, Wisconsin. The interstadial sediment was deposited about 12,200 14C yr B.P. after retreat of the Green Bay lobe that deposited diamicton of the Horicon Formation, and before advance of ...
Louis J. Maher +4 more
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