31. There are also two most common types of geophysical survey , which is, magnetometer and ground penetrating radar. 32. He majored in geophysical survey and exploration. 33. Geophysical survey is used to create maps of subsurface archaeological methods, geophysical survey is neither invasive nor destructive.34. Geophysical surveys in July 1985 and January 2009 failed to reveal any very positive indications of internal features.35. Geophysical survey is used to create maps of subsurface archaeological methods, geophysical survey is neither invasive nor destructive. 36. At the start of the 1980s, the state-appointed geophysical survey and a fieldwalk of the area were undertaken. 37. But this new program also created a large backlog of high priority oceanographic, hydrographic, and geophysical survey requirements. 38. 2003 fieldwork involved sampling and geophysical surveys of the land around Durrington Walls in preparation for future study. 39. Geophysical surveys in 1995 and a magnetometer survey in 2006 are exploring further the make up of the circles.40. The outstanding geophysical survey results provide the main data set for an important archaeological application of computerised network analysis.
