Chapter 1 World Coal Quality Inventory: South America ...
2007-3-5 · World Coal Quality Inventory: South America Executive Summary by Susan J. Tewalt, Robert B. Finkelman, Alex W. Karlsen, Linda Bragg ... Depth to top of bed (in meters) ... core, channel, run-of-mine, conveyor belt, grab, full bed or bench, etc. For bench samples – how many samples in series, thickness of bench Partings – included or ...
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