|Digital reconstruction of the recent discovery at Durrington Walls, near Stonehenge.|
Image Courtesy of Ludwig Boltzmann Institute and Phys.org.
Kris Lockyear, of Phys.org, has written an informative article about alternative methods archaeologists use to see underground other than excavation, as seen during the recent discoveries near Stonehenge at Durrington Walls. Stonehenge and Durrington Walls are part of the UNESCO World Heritage site Stonehenge, Avebury and Associated Sites.
"One suite of techniques available to archaeologists is geophysical survey (or "geofizz" to fans of the TV show Time Team). Of the many geophysical techniques that exist, archaeologists generally make use of four: magnetic gradiometry, earth resistance, ground penetrating radar (GPR) and magnetic susceptibility. Each technique measures some aspect of the ground below the surface. By taking many readings on a regular grid and plotting the results, information about the archaeological site can be gained without having to dig it up."
For more information,
- Ohio Valley Archaeology, Inc.
- What is Geophysical survey?
- What is Ground-Penetrating Radar (GPR)?
- What is Gravity Gradiometry?
- "Gravity gradiometry data is used by oil, gas and mining companies to measure the density of the subsurface, effectively the rate of change of rock properties."
- What is magnetic susceptibility?
- Getting Down to Earth: A practical guide to earth resistance testing (PDF)
- Time Team
- Time Team
- BBC Channel 4
- UNESCO World Heritage
- Durrington Walls' standing stones: a visitor's guide to the newest Stonehenge site
- Trisha Andres, The Telegraph, September 7, 2015.
- Time Team: the rise and fall of a television phenomenon
- current archaeology, December 7, 2012
- 'Super Stonehenge': Super circle of stones surround existing monument.
- September 25, 2015.
- Archaeologist Reveals Hidden Earthworks with Latest Geophysical Technology
- Jennifer Spiegel, October 24, 2013.