کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4477147 1315711 2008 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Grain-size normalization as a tool to assess contamination in marine sediments: Is the <63 μm fraction fine enough?
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات اقیانوس شناسی
پیش نمایش صفحه اول مقاله
Grain-size normalization as a tool to assess contamination in marine sediments: Is the <63 μm fraction fine enough?
چکیده انگلیسی

A common method for compensating for grain-size differences in suites of sediment samples is to normalize potential contaminants by regression with a particular grain-size fraction, the <63 μm fraction being most often selected. However, this fraction is unlikely to represent accurately the clay content, which represents a major factor in the ability of sediments to adsorb contaminants. Moreover, no reliable estimation of clay content can be made from a coarser grain-size fraction. As a result, regression with coarser-grained fractions can produce spurious interpretations of background values and contamination. Normalization with the clay content or by an alternative grain-size proxy is recommended.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Pollution Bulletin - Volume 56, Issue 4, April 2008, Pages 629–632
نویسندگان
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