Geochemistry of mine and spoil drainage in the Durham Coalfield ... pdf
https://spiral.imperial.ac.uk/.../Elizabeth_Louise_Ander-1999-PhD-Thesis.pdfwere associated with the lowest pH and highest concentrations of ions such as Fe, SO4,. Al, Zn and Cu: the converse was true for ... NO 01 Dc/ 00 w CD ON NI.