This'acid mine drainage'is derived from water leaching through the exposed and oxidised sulfide rocks.
2.
This is partially the cause for water leaching out of solution when left undisturbed for a short period of time.
3.
But choose a dark color to prevent cedar bleed ( brown stains caused by water leaching tanins from the cedar onto the finish ) from showing.
4.
Only one coat is needed every five years, and with white cedar, you will not get cedar bleed, the brown spots caused by water leaching out the tannins in red cedar.
5.
In the process of water leaching, the bamboo is dried slowly and evenly in the shade to avoid cracking in the outer skin of the bamboo, thereby reducing opportunities for pest infestation.
6.
Everyone seems to want a very light-colored house, and with any very light stain, the brown spots will come out _ caused by water leaching the color of the cedar onto the surface.
7.
The site was declared a state Superfund hazardous waste site in 1991 after engineering tests uncovered polluted soil and surface water leaching onto adjoining properties, as well as hazardous materials stored in the building.
8.
When the roots die, the space occupied by the root is subsequently also filled with a carbonate material derived from the calcium in the former tissue of the roots, and possibly also from water leaching through the structures.
9.
Thousands of sites exist where it is possible to collect natural coloured sands for craftwork, with an enormous range of colours being available around the globe varying with the contents of the mineral charged waters leaching through the sands.
10.
:: Crudely speaking, an ironpan is a layer of iron-rich soil usually found under layers sand and peat, or similar material formed from a bog : it's created by the downward-moving bog water leaching the minerals out of the soils above and depositing them on a more impermeable layer beneath-see bog iron.
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