aglo

Recommeded surveys for the Tailings Project


 
 

2D DC / IP

Gravity Seismic tomography Magnetics
Resolution
Station spacing: 1-50m Minimum 20m station spacing. Station spacing ~5m Recommended grid spacing ~5m.
Depth
~ 6*(stn spacing) ~ 0.2*(total line length) ~ 25m for this case ~ 0.2*(max. grid width)
Information type
2D section (smooth) 2D section (blocky) 2D section (smooth) 3D model
Sources of noise
>Metal within the ground.
>Near-site natural or man-made electrical activity.
>Unknown density anomalies.
> Severe topography.
>Industrial activity.
> Loose surficial materials.
>Ferrous objects above or below ground.
Recommended deliverables
>Raw data images
>2D inverted section images
>Raw data profiles
>Forward modelled 2D block models
>Inverted section of velocities >3D inversion model
Daily productivity
1 line per day (up to 48 stns) 30 stns per day 1 line per day (30 stns) 400 stns
Costs per field day*
$900 $600 $1100 $300
Processing & reporting costs
$200 per line $200 per line $400 per line $400 per day of data

*Notes regarding costs:

  • Positioning included.
  • Equipment + crew + overhead
  • Fixed additional costs for a site visit regardless of number or type of surveys:
    • Mobilization and de-mobilization: two days at $300 per perso
    • Waiting time (if weather or other conditions cause unavoidable waiting): $200/day per person.
  • Additional costs may be incurred if re-processing is required to emphasis alternative interpretations.