Assertion: artificial gully | /r/HasProperty | formed
Facets:
value: during some mining operations
type: TEMPORAL
value: during hydraulic mining
type: TEMPORAL
Source sentences:
text: Artificial gullies are formed during hydraulic mining when jets or streams of water are projected onto soft alluvial deposits to extract gold or tin ore.
text: Artificial gullies are also formed during some mining operations when large amounts of water are used to flush out deposits.