کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7120227 1461459 2018 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A comparison between Laser Granulometer and Sedigraph in grain size analysis of marine sediments
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی کنترل و سیستم های مهندسی
پیش نمایش صفحه اول مقاله
A comparison between Laser Granulometer and Sedigraph in grain size analysis of marine sediments
چکیده انگلیسی
A total of 24 sediment samples with wide dimensional, mineralogical and compositional range were considered, collected from 5 Italian coastal marine sites. The fine fraction (<63 μm) was analyzed using Laser Granulometer (LG) and X-ray Sedigraph (XS) in order to compare data and highlight potential differences. The unexpected variable sandy fraction in nearly all the samples was attributed to clay mineral aggregates. The highest sand percentages detected by XS were attributed to local compositional sediment features. An increase of 15-25% of clay in samples analyzed by XS was attributed to the different working principles of the considered devices. Nevertheless, final results succeeded in characterizing sediment texture and distribution as a function of water depth. In conclusion, it's important to select the analytical instrument according to the characteristics of sediments, to adjust the density of media solution for XS analysis, and to prevent aggregates formation for both XS and LG.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Measurement - Volume 128, November 2018, Pages 231-236
نویسندگان
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