943 resultados para Moving-Pictures and history
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This layer is a digitized geo-referenced raster image of a 1797 map of Maryland and Delaware drawn by D.F. Sotzmann. These Sotzmann maps (10 maps of New England and Mid-Atlantic states) typically portray both natural and manmade features. They are highly detailed with symbols for churches, roads, court houses, distilleries, iron works, mills, academies, county lines, town lines, and more. Relief is usually indicated by hachures and country boundaries have also been drawn. Place names are shown in both German and English and each map usually includes an index to land grants. Prime meridians used for this series are Greenwich and Washington, D.C.
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In order to understand the processes controlling organic carbon deposition (i.e., primary productivity vs. terrigenous supply) and their paleoceanographic significance, three sediment cores (PS2471, PS2474. and PS2476) from the Laptev Sea continental margin were investigated for their content and composition of organic carbon. The characterization of organic matter indudes the determination of buk parameters (hydrogen index values and C/N ratios) and the analysis of specific biomarkers (n-alaknes, fatty acids, alkenones, and pigments). Total organic carbon (TOC) values vary between 0.3 and 2%. In general, the organic matter from the Laptev Sea continental margin is dominated by terrigenous matter throughout. However. significant amounts of marine organic carbon occur. The turbidites, according to a still preliminary stratigraphy probably deposited during glacial Oxygen Isotope Stages 2 and 4, are characterized by maximum amounts of organic carbon of terrigenous origin. Marine organic carbon appears to show enhanced relative abundances in the Termination I (?) and early Holocene time intervals, as indicated by maximum amounts of short chain n-alkanes, short-chain fatty acids, and alkenones. The increased amounts of faity acids, however, may also have a freshwater origin due to increased river discharge at that time. The occurrence of alkenones is suggested to indicate an intensification of Atlantic water inflow along the Eurasian continental margin starting at that time. Oxygen Isotope Stage l accumutation rates of total organic carhon are 0.3, 0.17, and 0.02 C/cm**2/ky in cores PS2476, PS2474, and PS2471, respectively.
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Mode of access: Internet.
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Mode of access: Internet.
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Signed at end: Isaac Lane (retired). Robert Simeon Williams. Elias Cottrell. Charles Henry Phillips. Randall Albert Carter. Nelson Caldwell Cleaves.
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"Sermons ... delivered in the Fifteenth Street Presbyterian Church, Washington, D.C., November 20th and 27th, and December 4th and 11th. They are published by request"--p. [3].
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"This study is one of a number planned, by the Division of Economics and History of the Carnegie Endowment for International Peace, to deal with the postwar settlement and the political problems of Europe."--Foreword.
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Mode of access: Internet.
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"For the actual compilation of this treatise we are indebted to Mr. Tamizô Kushida."--Pref. signed Ushisaburo Kobayashi.
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This title is in the TRLN Single Copy Archive. Electronic access also available.
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