886 resultados para Classification of fruits and vegetables
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Nineteen samples of the Cape Roberts-1 drillcore were taken from Miocene- age deposits, from 90.25 - 146.50 metres below seafloor (mbsf) for thin section and laser grain-size analysis. Using the grain-size distribution, detailed core logging, X-radiography and thin-section analysis of microstructures, coupled with a statistical grouping of the grain-size data, three main styles of gravity-flow sedimentation were revealed. Thin (centimetre-scale) muddy debris-flow deposits are the most common and are possibly tirggered by debris rain-out from sea-ice These deposits are characterised by very poorly sorted, faintly laminated muddy sandstones with coarse granules toward their base. Contacts are gradational to sharp. Variations on this style of mass-wasting deposit are rhythmically stacked sequences of pebbly-coarse sandstones representing successive thin debris-flow events. These suggest very high sedimentation rates on an unstable slope in a shallow-water proximal glacimarine environment. Sandy-silty turbidites appear more common in the lower sections of the core, below approximately 141.00 mbsf, although they occur occasionally with the debris flow deposits The turbidites are characterised by inversely to normally graded, well-laminated siltstones with occasional lonestones, and represent a more distal shallow-water glacimarine environment.
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Photocopy.
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Federal Highway Administration, Washington, D.C.
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"Explanation of terms": p. [17]-[19].
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Includes bibliographical references (p. 56)
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Texas Department of Transportation, Austin
A classification of the larvae and puparia of the Syrphidae of Illinois, exclusive of aquatic forms.
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Issued also as thesis (PH.D.) University of Illinois.
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September 1979.
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Bibliography: p.53-54.
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Includes bibliographical references (p. 1160-1184) and index.
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An extract from the 1803 volume of the Philosophical transactions of the Royal Society of London.
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Mode of access: Internet.
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Mode of access: Internet.
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Advertisement: 1 p. (at end).