Chromites mapping using geophysical methods proved difficulty during the past several decades, because most Chromites are feature as podiform deposits which always pinch out and reappear in the same survey line. Several ground-based geophysical methods including: Microgravity, Magnetic and CSAMT have been used for chromites mapping. However, the result did not satisfy the need of the mining geologists.
We used the following Methods:
3D GEM,Precision SIP
High Density data acquisition,up to 5X5m
Rock physical research
Result:
The largest deposit of 2.01 Million ton was found in China.
The central chromite-bearing ore belt was uncovered using 3D-GEM and Precision SIP.