Novice prospector with 300+ ha gold claim in Zvishavane, Zimbabwe — can remote sensing help me find oxide zones or gold signatures without expensive equipment?
Hi all,
I hold registered mining rights to a greenstone belt property of just over 300 hectares in the Zvishavane area of Zimbabwe (Midlands province, part of the Mberengwa Greenstone Belt). I’ve done what ground exploration I can — walking the claim, identifying outcrop, taking photos and rock samples — but I have zero budget for trenching, IP/magnetic geophysics, or commercial remote sensing services.
What I’m hoping to learn from this community:
1. Can red/iron oxide zones (gossans) actually be picked out reliably from free or low-cost satellite imagery (Sentinel-2, Landsat, etc.)? If so, which band combinations or indices would you suggest for someone just starting out?
2. Is there any way to get a rough read on alteration zones or possible gold-bearing structures from satellite data alone, without ground-truthed spectral libraries?
3. Are there any free or open tools/platforms you’d recommend for a complete beginner trying to do this on a shoestring?
I’m not expecting satellite imagery to “find gold” — I understand its limits — but if it can help me prioritize where to focus my limited ground sampling, that would be huge.
For reference, here are my registered claim boundary coordinates (UTM, Zone 36S):
Claim E:
• A: 813082.17 E, 7769641.64 N
• B: 814137.58 E, 7768185.70 N
• C: 813510.24 E, 7767513.95 N
• D: 812581.76 E, 7768995.22 N
Claim F:
• A: 812581.00 E, 7768994.91 N
• B: 812569.91 E, 7768500.57 N
• C: 812611.31 E, 7767981.32 N
• D: 812800.13 E, 7767980.13 N
• E: 812779.76 E, 7768501.56 N
• F: 812697.72 E, 7768626.03 N
• G: 813509.91 E, 7767612.63 N
• H: 812750.86 E, 7766617.60
• I: 811911.11 E, 7768243.47 N
Happy to share imagery too if anyone’s willing to take a look.
Appreciate any guidance, even pointing me toward beginner resources.