Many time people use HCL before granulometry analysis of sediment and how it affect the overall size of the original material. If we are in deeper environment, then the main source of material is biogenic apart from terrestrial input, because the material derived to this environment is mainly pelagic sources (Benthic, Siliceous, Planktonic forms).
What is the best practice to do the analysis without affecting the originality of the material. Please provide your opinion so that i could clear my understanding about the procedures involved behind it.
Thanks
HCL is added to dissolve any shell fragments, and or calcium carbonate cement (aragonite and or calcite) which are normally present in siliciclastic sediments.
If your purpose is to estimate grain size INCLUDING the biogenic components, then do away with HCL pre-treatement.
Thank you for your contribution.
Yes, my intention is to know the effect on overall size because many for them are of sand size. When we are adding HCL for removing carbonate and aragonite from the system or count, then, how it affect the overall geotechnical work or properties.
So what is the best method to be adopted for representing the actual size fraction in terms of sand, silt, clay.
Thanks and Regards
biogenic sediment are made up of carbonate and arogonite. It consist of small voids/ gaps inside. If we will remove these biogenic content from the sediment. Geotechnical properties of sediment will automatically improve.
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