999 resultados para Buckley-James estimator


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High-resolution geophysical and sediment core data are used to investigate the pattern and dynamics of former ice flow in Kvitøya Trough, northwestern Barents Sea. A new swath-bathymetric dataset identifies three types of submarine landform in the study area (streamlined landforms, meltwater channels and cavities, iceberg scours). Subglacially produced streamlined landforms provide a record of ice flow through Kvitøya Trough during the last glaciation. Flow directions are inferred from the orientations of streamlined landforms (drumlins, crag-and-tail features). Ice flowed northward for at least 135 km from an ice divide at the southern end of Kvitøya Trough. A large channel-cavity system incised into bedrock in the southern trough indicates that subglacial meltwater was present at the former ice-sheet base. Modest landform elongation ratios and a lack of mega-scale glacial lineations suggest that, although ice in Kvitøya Trough was melting at the bed and flowed faster than the likely thin and cold-based ice on adjacent banks, a major ice stream probably did not occupy the trough. Retreat was relatively rapid after 14-13.5 14C kyr B.P. and probably progressed via ice sheet-bed decoupling in response to rising sea level. There is little evidence for still stands during ice retreat or of ice-proximal deglacial sediments. Relict iceberg scours in present-day water depths of more than 350 m in the northern trough indicate that calving was an important mass loss mechanism during retreat.

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F only available in microfiche.

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On verso: Copied from a tin-type. Taken in Yorktown Va., in February 1864, the day of the arrival from the Kilpatrick raid on Richmond at which time I was commanding the 6th Mich. Calvary with the rank of major. Was promoted to Colonel the May following. Age 24. J.W.K.

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President of the University of Michigan, minister to China and Turkey. On verso: Card Imperial By Sam B. Revenaugh, 28 Huron street (Upstairs) Ann Arbor, - Mich.

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Standing (Adults) L-R: Marion Waterhouse Angell (Mrs. J.R.); James Rowland Angell; Andrew C. McLaughlin; Fanny C. Cooley. Angell (Mrs. A.C.); Alexis Caswell Angell; Sarah Caswell Angell (daughter of A.C), Lois Angell McLaughlin

Middle Row: James Waterhouse Angell (son of J.R.), Marion Angell (McAlpin) (daughter of James R.) James Burrill Angell, Isabel McLaughlin

Front Row: Constance McLaughlin (Green); Robert Cooley Angell (son of A.C.); Esther Lois McLaughlin (Donahue) David Blair McLaughlin; Rowland Hazard McLaughlin; James Burrill Angell II (son of A.C.): James Angell McLaughlin

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York Township (Mich.) residence. Publication information: Chicago, Ill. : Everts & Stewart, 1874.

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First Dean of University of Michigan Law School, 1859-1871. On verso: Sam B. Revenaugh's Photographic Establishment, 28 Huron Street, Ann Arbor, Michigan

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President of the University of Michigan, minister to China and Turkey. On verso: North & Oswald Photographers, Toledo, Ohio. Established 1864. Take the Passenger Elevator at St. Clair Street Entrance, and Visit our New Studios, 45 Hall Block. Largest and finest in the West. All negatives preserved and Registered...