Robuta

https://www.usgs.gov/publications/raw-and-processed-ground-penetrating-radar-and-postprocessed-differential-global Raw and processed ground-penetrating radar and postprocessed differential global positioning system... Scientists from the U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center acquired sediment cores, sediment surface grab samples,... ground penetrating radarglobal positioningrawprocessed