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    • CommentAuthorj_wells
    • CommentTimeFeb 17th 2014
    Hi there, not sure if this is the best place for this but here goes,

    I'm currently working on my dissertation for my Earth Science course at university. Unfortunately I've hit a wall regarding my data. I am comparing two different sites which have both undergone intensive lead mining over the last few hundred years, one located in an area of predominantly mudstone and the other limestone. I collected 12 water samples from rivers that run through each site to compare the pH, Eh and the elements Zn, Mn, Na, K, Mg, Ca. The significant differences are between Na, K, Mg and C, with higher mean readings in the area with limestone. Would anyone be able to give me a direction as to why this could be, or any advice in general would be great.

    Many thanks