Chapter 1513: COAL SURFACE MINING. 1513.01 Coal surface mining definitions. As used in this chapter: "Approximate original contour" means that surface configuration achieved by backfilling and grading of a mined area so that the reclaimed area, including any terracing or access roads, closely resembles the general surface configuration of the ...
Excavation: Excavation, in archaeology, the exposure, recording, and recovery of buried material remains. In a sense, excavation is the surgical aspect of archaeology: it is surgery of the buried landscape and is carried out with all the skilled craftsmanship that has been built up in the era since
The Anatidae are the biological family of birds that includes ducks, geese, and swans.The family has a cosmopolitan distribution, occurring on all the world's continents.. These birds are adapted for swimming, floating on the water surface, and in some cases diving in at least shallow w
Authorized Open Erodible Area. The resident engineer will limit the amount of surface area of erodible earth material exposed at one time due to excavation, borrow fill within the project, contractor furnished borrow and excess material disposal site.
Surface mining is defined as the extraction of ore from an open pit or burrow. Surface mining is sometimes known as open-pit, open-cut or open-cast mining and is only commercially viable if the deposit is located relative close to the surface. Less than 20% of Alberta's bitumen reserves