Miner closely examining rock formations for ores in an underground excavation site
Palabras clave
miner,
rock,
formation,
valuable,
ore,
excavation,
underground,
geology,
mineral,
mining,
exploration,
labor,
workplace,
tool,
safety,
helmet,
inspection,
expertise,
skilled,
men at work,
rugged,
terrain,
natural,
resource,
research,
prospecting,
ore,
analysis,
stone,
texture,
mineral,
identification,
environment,
hard,
hat,
focusing,
craftsmanship,
industry,
site,
layer,
geologic,
study,
equipment,
work,
earth,
material,
operation,
resource,
extraction
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