13 Nov 2012

Conducting a seismic survey

From the collecton When the Siren Goes - audio

Surrounded by lush Central Otago hills and paddocks, a team of researchers are laying microphones along the ground. They've got a sledgehammer poised over a steel plate and an improvised shotgun ready to shoot into the topsoil. What on earth are they up to? They're geologists out on a seismic survey - monitoring echoes from different rock strata underground to build up a picture of an unmapped fault line. Andrew Gorman and Claudina Curran from the University of Otago show Dacia Herbulock that you don't always need highly sophisticated equipment to get the job done. Our Changing World segment 13 December 2007