Sentence examples for layer of ore from inspiring English sources

The principal supported-stoping method, practiced on steeply dipping ore bodies, is cut-and-fill mining, in which the opened stope is back-filled with waste materials as each layer of ore is removed.

The stack is kept full with alternating layers of coke, ore, and limestone admitted at the top during continuous operation.

The knowledge on pressure drop over the packed layers of sintered ore particles (SOPs) is deemed essential to have a deep understanding on the flow and heat transfer in emerging vertically arranged sinter coolers for waste heat recovery.

Interfacial interactions between substrata and bacterial cells are more complicated in the case of ores or post-flotation wastes containing residues of copper sulphides and different origin ores (in our experiments limestone and sandstone are origin ores).

Attempts to leach successive batches of ore in a cyclic or counter-current manner to build up metal concentration were unsuccessful due to passivation by formation of a product layer around the ore particles.

Iron ore sintering consists of heating a layer of fines until partial melting occurs and individual ore particles fuse together.

Immiscible sulfide drops can become segregated and form immiscible magma layers in a magma chamber in the same way that cumulus layers form; then, when layers of sulfide magma cool and crystallize, the result is a deposit of ore minerals of copper, nickel, and platinum-group metals in a gangue of an iron sulfide mineral.

Until iron-ore mining was suspended in 1975, Pepel, the nation's only iron-ore port, had an annual turnover of 2 3 million tons of ore.

The largest group of ore minerals consists of sulfides.

Nichols took charge of ore procurement.

The expansion would yield 400,000 tonnes of ore.