Progress Update A quick look at the DART project so far, the preliminary geophysics and the FlashRes64 Robert Fry Division...
<ul><li>PhD  </li></ul><ul><li>Research into geophysical seasonality has begun </li></ul><ul><li>Preliminary testing of th...
Preliminary Geophysics <ul><li>Harnhill, Cirencester  </li></ul>
<ul><li>Fluxgate Gradiometer  </li></ul><ul><li>Results </li></ul>Harnhill: Rathill
<ul><li>Interpretation </li></ul>Harnhill: Rathill
<ul><li>Fluxgate Gradiometer  </li></ul><ul><li>Results </li></ul>Harnhill: Quarry Field
Harnhill: Quarry Field
Harnhill: Cherry Copse <ul><li>Fluxgate  </li></ul><ul><li>Gradiometer  </li></ul><ul><li>Results </li></ul>
Harnhill: Cherry Copse
Preliminary Geophysics Diddington, Cambridgeshire
<ul><li>Fluxgate Gradiometer  </li></ul><ul><li>Results </li></ul>Diddington 1
<ul><li>Interpretation </li></ul>Diddington 1
<ul><li>Fluxgate Gradiometer  Results </li></ul>Diddington 2
<ul><li>Interpretation </li></ul>Diddington 2
<ul><li>Fluxgate Gradiometer Results </li></ul>Diddington 3
<ul><li>Interpretation </li></ul>Diddington 3
<ul><li>Fluxgate Gradiometer Results </li></ul>Diddington 4
<ul><li>Interpretation </li></ul>Diddington 4
New Geophysics at Cherry Copse…
Cherry Copse
Quarry Field
Quarry Field
TDR installed at Cirencester (Quarry Field)
FlashRes64 <ul><li>New technology – usually a geological/hydrological  investigation.  </li></ul><ul><li>C.15,000 measurem...
FlashRes64 – Rough Guide
Long surveys Temple Newsam - Leeds <ul><li>1m probe separation </li></ul>
Archaeological Problems: Broughton  Ditch 20cm spacing = 12.6m transect Ditch at top = C.1.4m wide
Archaeological Problems: Broughton  Ditch
Quarry Field, Cirencester <ul><li>20cm probe spacing (12.6m per survey) </li></ul><ul><li>Roll-on survey (two surveys per ...
Quarry Field: Cirencester 2D profiles Surveys 1+2  (Traverse 1) Surveys 3+4  (Traverse 2) Surveys 5+6  (Traverse 3) Survey...
Archaeological application: FlashRes Extractor program <ul><li>Written in Python – very much still in progress </li></ul>
<ul><li>Claims: 0.5m, 1m, 1.8m depth ranges </li></ul><ul><li>Intercoil spacing: 0.32m, 0.71m, 1.18m </li></ul><ul><li>Bui...
<ul><li>Samples collected 0.5s </li></ul><ul><li>Zig-zag traverses 0.5m </li></ul><ul><li>20x20m grid  </li></ul><ul><li>I...
<ul><li>Samples collected 0.5s </li></ul><ul><li>Parallel traverses 0.5m </li></ul><ul><li>20x20m grid  </li></ul><ul><li>...
<ul><li>Samples collected 0.5s </li></ul><ul><li>Parallel traverses 0.5m </li></ul><ul><li>14x20m grid  </li></ul><ul><li>...
‘ Publications’
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DART: Fry progress so far 070711

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An update on the progress made by Rob Fry on the geophysics aspects of the DART project

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DART: Fry progress so far 070711

  1. 1. Progress Update A quick look at the DART project so far, the preliminary geophysics and the FlashRes64 Robert Fry Division of Archaeological, Geographical and Environmental Science
  2. 2. <ul><li>PhD </li></ul><ul><li>Research into geophysical seasonality has begun </li></ul><ul><li>Preliminary testing of the FlashRes64 ERI instrument </li></ul><ul><li>Development of an extraction program in Python begun </li></ul><ul><li>DART </li></ul><ul><li>Sites for investigation have been found </li></ul><ul><li>Preliminary geophysical (Fluxgate Gradiometer) surveys </li></ul><ul><li>Excavation of sites and installation of TDR probes (Cirencester) </li></ul><ul><li>Testing of CMD EM with possible addition onto the geophysical methodology </li></ul>Since the last meeting…. 
  3. 3. Preliminary Geophysics <ul><li>Harnhill, Cirencester </li></ul>
  4. 4. <ul><li>Fluxgate Gradiometer </li></ul><ul><li>Results </li></ul>Harnhill: Rathill
  5. 5. <ul><li>Interpretation </li></ul>Harnhill: Rathill
  6. 6. <ul><li>Fluxgate Gradiometer </li></ul><ul><li>Results </li></ul>Harnhill: Quarry Field
  7. 7. Harnhill: Quarry Field
  8. 8. Harnhill: Cherry Copse <ul><li>Fluxgate </li></ul><ul><li>Gradiometer </li></ul><ul><li>Results </li></ul>
  9. 9. Harnhill: Cherry Copse
  10. 10. Preliminary Geophysics Diddington, Cambridgeshire
  11. 11. <ul><li>Fluxgate Gradiometer </li></ul><ul><li>Results </li></ul>Diddington 1
  12. 12. <ul><li>Interpretation </li></ul>Diddington 1
  13. 13. <ul><li>Fluxgate Gradiometer Results </li></ul>Diddington 2
  14. 14. <ul><li>Interpretation </li></ul>Diddington 2
  15. 15. <ul><li>Fluxgate Gradiometer Results </li></ul>Diddington 3
  16. 16. <ul><li>Interpretation </li></ul>Diddington 3
  17. 17. <ul><li>Fluxgate Gradiometer Results </li></ul>Diddington 4
  18. 18. <ul><li>Interpretation </li></ul>Diddington 4
  19. 19. New Geophysics at Cherry Copse…
  20. 20. Cherry Copse
  21. 21. Quarry Field
  22. 22. Quarry Field
  23. 23. TDR installed at Cirencester (Quarry Field)
  24. 24. FlashRes64 <ul><li>New technology – usually a geological/hydrological investigation. </li></ul><ul><li>C.15,000 measurements in 15 minutes </li></ul><ul><li>C.60,000 measurements in 50 minutes </li></ul><ul><li>Production of a ‘small-spacing rig’ for archaeological problems </li></ul><ul><li>Production of a lab rig for specific testing (MSc Dissertation research) </li></ul>
  25. 25. FlashRes64 – Rough Guide
  26. 26. Long surveys Temple Newsam - Leeds <ul><li>1m probe separation </li></ul>
  27. 27. Archaeological Problems: Broughton Ditch 20cm spacing = 12.6m transect Ditch at top = C.1.4m wide
  28. 28. Archaeological Problems: Broughton Ditch
  29. 29. Quarry Field, Cirencester <ul><li>20cm probe spacing (12.6m per survey) </li></ul><ul><li>Roll-on survey (two surveys per traverse) </li></ul><ul><li>Traverses 2m apart </li></ul>Area of overlap 1 4 5 8 9 2 3 6 7 10 Survey no. Traverse no. 1 2 3 4 5
  30. 30. Quarry Field: Cirencester 2D profiles Surveys 1+2 (Traverse 1) Surveys 3+4 (Traverse 2) Surveys 5+6 (Traverse 3) Surveys 7+8 (Traverse 4) Surveys 9+10 (Traverse 5) 3D depth slices
  31. 31. Archaeological application: FlashRes Extractor program <ul><li>Written in Python – very much still in progress </li></ul>
  32. 32. <ul><li>Claims: 0.5m, 1m, 1.8m depth ranges </li></ul><ul><li>Intercoil spacing: 0.32m, 0.71m, 1.18m </li></ul><ul><li>Built in EM inversion </li></ul><ul><li>Apparent conductivity (resistivity) as well as in-phase response </li></ul><ul><li>Tests in Bradford Amphitheatre, and Harnhill, Cirencester </li></ul>CMD MiniExplorer
  33. 33. <ul><li>Samples collected 0.5s </li></ul><ul><li>Zig-zag traverses 0.5m </li></ul><ul><li>20x20m grid </li></ul><ul><li>In-phase response to left </li></ul><ul><li>Apparent resistivity to right </li></ul>CMD MiniExplorer Bradford Service pipe (Photo: Andy Parkyn)
  34. 34. <ul><li>Samples collected 0.5s </li></ul><ul><li>Parallel traverses 0.5m </li></ul><ul><li>20x20m grid </li></ul><ul><li>In-phase (ppt) response to left </li></ul><ul><li>Apparent resistivity (ohm.m) to right </li></ul>CMD MiniExplorer Quarry: Cirencester
  35. 35. <ul><li>Samples collected 0.5s </li></ul><ul><li>Parallel traverses 0.5m </li></ul><ul><li>14x20m grid </li></ul><ul><li>In-phase (ppt) response to left </li></ul><ul><li>Apparent resistivity (ohm.m) to right </li></ul>CMD MiniExplorer Cherry Copse: Cirencester
  36. 36. ‘ Publications’

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