However, traces of urea in the AMD waters of the lignite mining site may be generated by bioweathering processes of the fossil organic matter in the lignite similar to bioweathering of the organic matter in copper shales [67, 68 ].

For decades there have been yawlers in these reaches of the river, and if anyone knows a thing or two about these waters, they do.

Let me […] compose / Something in Verse as true as Prose.

the issuings of nature's springs