Auger drilling into layered soil strata for geological survey.
Keywords
drilling,
auger,
dirtied,
earth,
ground,
layer,
strata,
geology,
geologic,
excavation,
boring,
digging,
construction,
engineering,
survey,
exploration,
sample,
core,
rock,
dirt,
sediment,
mineral,
resource,
extraction,
mining,
agriculture,
foundation,
site,
analysis,
research,
depth,
cutaway,
texture,
brown,
orange,
grey,
tan,
earthy,
natural,
organic,
material,
groundwork,
underground,
subsoil,
topsoil,
bedrock