Pioneering geophysical work undertaken by Aim-listed Botswana Diamonds has identified kimberlite pipes buried at shallow depth on the company’s Thorny River prospect, in Botswana.
The company says the targets identified are similar to the pipe that constituted the high-grade and famous De Beers Marsfontein mine, in so much as the pipe had little surface indication, owing to dolerite rock cover, but grew and swelled below the dolerite.