Rescue Archeology: Lantana, Florida

Aqua Survey was contracted by Seafarer Exploration (Stock: SFRX) to use our newly configured super-high-powered EM63 time domain electromagnetic induction (TDEMI) metal detection system to locate scattered metallic cultural resources from a 300-year old Spanish wreck.  The survey was completed in January this year.  What makes this project exciting is it is the first time this military-grade equipment (usually used to detect unexploded bombs on land) was used to detect metallic objects buried under sand offshore.  A TDEMI system beams a magnetic current deep into sediments and has receivers to collect return signals from buried excited metal targets.  In addition, the EM63 systems allow us to assess each target’s decay curve.  Different metals (gold, silver, copper, iron…) have unique decay curves.  These decay curves allow us to predict the metallic nature of each detected target.  The same abilities help unexploded ordnance (bomb) technicians discriminate between an aluminum soda can and a sub-munition in the Lao jungles.

As soon as all the permits and notices are in order, Seafarer Exploration will begin to investigate the targets.  Just as we were excited to use this same technology on land to assist the Lao National Museum find an ancient buried city gate in Vientiane, we eagerly await the investigation (dig-out) of each of these high-value targets at the Lantana site.

More later.