African Shipwreck Yields Rich Treasures

Then the team found what looked like cannon barrels.

The geologists stopped the brutal earth-moving work of searching for diamonds and sent photos to Noli, who had done research in the Namibian desert since the mid-1980s and has advised De Beers since 1996 on the archaeological impact of its operations in Namibia.

The find "was what I'd been waiting for, for 20 years," Noli said. "Understandably, I was pretty excited. I still am."

Noli's original specialty was the desert, but because of Namdeb's offshore explorations, he had been preparing for the possibility of a wreck, even learning to dive.

After the discovery, he brought in Bruno Werz, an expert in the field, to help research the wreck. Noli has studied maritime artifacts with Werz, who was one of his instructors at the University of Cape Town.