Separation and Identification of the Silt-sized Heavy-mineral Fraction in Sediments PDF Download
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Author: Judith A. Commeau
Publisher:
ISBN:
Category : Heavy minerals
Languages : en
Pages : 24
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Book Description
See journals under US Geological survey. Circular 1071.
Author: Judith A. Commeau
Publisher:
ISBN:
Category : Heavy minerals
Languages : en
Pages : 24
Get Book Here
Book Description
See journals under US Geological survey. Circular 1071.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 34
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Book Description
Author:
Publisher:
ISBN:
Category : Mineral resources
Languages : en
Pages : 410
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Book Description
Author: Judith A. Commeau
Publisher:
ISBN:
Category : Earthquake hazard analysis
Languages : en
Pages : 312
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Book Description
Author: Geological Survey (U.S.)
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 436
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Book Description
Author: Geological Survey (U.S.).
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 962
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Book Description
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 846
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Book Description
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 630
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Book Description
Author: R.G. Rothwell
Publisher: Springer Science & Business Media
ISBN: 9400911335
Category : Science
Languages : en
Pages : 284
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Book Description
Over 60% of the Earth's surface is covered with deep marine sediments, however, until the early 1980s, no comprehensive text books appeared to support the rapid expansion in the study of these sediments. While the whole field of marine geology has expanded enormously and entirely new disciplines, such as paleoceanography, have been developed, there remains a lack of reference texts on study techniques that investigators in the marine community can turn to. Minerals and Mineraloids in Marine Sediments is an optical identifica tion guide that I believe will become a standard reference text for use in the microscope analysis of marine sediment& and sedimentary rocks. The systematic collection of sediment cores from the deep ocean floor began in earnest with the Swedish Deep Sea Expedition, 1947-1948. Much of the microscopic examination of the sediments collected in these piston cores (10 m+ long) was conducted on separated grain mounts or thin sections of impregnated sediments. By the late 1960s a simpler technique of examining a mounted smear of the cored silt and clay size sediment on a microscope slide had become standard practice in American oceanographic institutions. This semi quantitative technique became the standard tool used in core description aboard Glomar Challenger through the 15 years of the Deep Sea Drilling Project (DSDP), 1968-1983. Visual percentage estimates of biogenic and mineral components were made using petrologic micro scopes.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309168961
Category : Technology & Engineering
Languages : en
Pages : 432
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Book Description
Bioavailability refers to the extent to which humans and ecological receptors are exposed to contaminants in soil or sediment. The concept of bioavailability has recently piqued the interest of the hazardous waste industry as an important consideration in deciding how much waste to clean up. The rationale is that if contaminants in soil and sediment are not bioavailable, then more contaminant mass can be left in place without creating additional risk. A new NRC report notes that the potential for the consideration of bioavailability to influence decision-making is greatest where certain chemical, environmental, and regulatory factors align. The current use of bioavailability in risk assessment and hazardous waste cleanup regulations is demystified, and acceptable tools and models for bioavailability assessment are discussed and ranked according to seven criteria. Finally, the intimate link between bioavailability and bioremediation is explored. The report concludes with suggestions for moving bioavailability forward in the regulatory arena for both soil and sediment cleanup.
