Assertion: heap leaching | /r/CapableOf | involve stacking of metal-bearing ore
Facets:
value: on an impermeable pad
type: LOCATION
value: into a heap
type: TRANSITIVE-OBJECT
Source sentences:
text: Heap leaching involves stacking of metal-bearing ore into a heap on an impermeable pad, irrigating the ore for an extended period of time with a chemical solution to dissolve the sought-after metals, and collecting the leachant as it percolates from the base of the heap.