H I STO RY O F D E N D R O C H R O N O LO GY
NOT ONMID-TERM
THE PRINCIPLE OF    CROSS-DATING      THE PRINCIPLE OFAGGREGATE TREE GROWTH      THE PRINCIPLE OF     REPLICATION  STANDAR...
“ RINGS    IN THE BRANCHES OF    SAWED TREES SHOWTHE NUMBER OF YEARS  AND, ACCORDING TO THEIR     THICKNESS,   THE YEARS W...
“   ... and if one forces a stone or similar                                object into a tree, it becomes hidden,        ...
Henri-Louis Duhamel du Monceau   Georges-Louis Leclerc, Comte de Buffon           1700 - 1782                         1707 ...
Frost ring Pinus sibiricaPhotograph: Fri s Schweingruber
1737  !1708
Carl Linnaeus 1707 - 1778Photograph: brewbooks
Alexander Twining    1801 - 1884
“...every tree told the same story.”
Tucson, AZ
Flagstaff, AZ
Andrew Douglass (right) Flagstaff 1898
Lowell Observatory Flagstaff ArizonaPhotograph: Sam Wise
Tucson, AZ
Photograph: Howard Arno
Photograph: Christine and John Fournier
“   We do not know how old these ruins are, but I should be    glad to have an opinion from you as to whether it might    ...
Aztec RuinPublo Bonita
Aztec Ruin National Monument New MexicoPhotograph: Sco Catron
Pueblo Bonito New MexicoPhotograph: Chris M
Pueblo Bonito New Mexico (before it was excavated)
Photograph: Stones 55
Wupatki New Mexico
National Geographic ‘Beam Expeditions’ 1920s
Show Low, AZ
$5    for100 rings
$65     2011 dollars    for100 rings
Living-tree chronology                        1300   1400   1500   1600   1700   1800   1900‘Floating’ chronology
Living-tree chronology                        1300   1400   1500   1600   1700   1800   1900                              ...
Living-tree chronology                                       1300   1400   1500   1600   1700   1800   1900               ...
“   For the three of us, the experience was unforge able.    To be present at the instance of the celebrated    breakthrou...
Tree-ring display at elementary school                                    Photograph:Tom Swetnam
FUTURELAB EXERCISE
Photograph: Kurt Kipfmueller
Photograph: Kurt Kipfmueller
Photograph: Kurt Kipfmueller
Photograph: Calvin Farris
Photograph: Calvin Farris
Photograph: Calvin Farris
GEOG3839.9, The history of dendrochronology
GEOG3839.9, The history of dendrochronology
GEOG3839.9, The history of dendrochronology
GEOG3839.9, The history of dendrochronology
GEOG3839.9, The history of dendrochronology
GEOG3839.9, The history of dendrochronology
GEOG3839.9, The history of dendrochronology
GEOG3839.9, The history of dendrochronology
GEOG3839.9, The history of dendrochronology
GEOG3839.9, The history of dendrochronology
GEOG3839.9, The history of dendrochronology
GEOG3839.9, The history of dendrochronology
GEOG3839.9, The history of dendrochronology
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GEOG3839.9, The history of dendrochronology

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GEOG3839.9, The history of dendrochronology

  1. 1. H I STO RY O F D E N D R O C H R O N O LO GY
  2. 2. NOT ONMID-TERM
  3. 3. THE PRINCIPLE OF CROSS-DATING THE PRINCIPLE OFAGGREGATE TREE GROWTH THE PRINCIPLE OF REPLICATION STANDARDIZATION THE PRINCIPLE OFECOLOGICAL AMPLITUDE THE PRINCIPLE OF SITE SELECTION
  4. 4. “ RINGS IN THE BRANCHES OF SAWED TREES SHOWTHE NUMBER OF YEARS AND, ACCORDING TO THEIR THICKNESS, THE YEARS WHICH WERE MORE OR LESS DRY.” Leonardo da Vinci
  5. 5. “ ... and if one forces a stone or similar object into a tree, it becomes hidden, since the new growth surrounds it, as was the case with the wild olive tree which stood in the market place at Megara.” Theophrastus (371 - 287 BC)Photograph: Anshul Nigham
  6. 6. Henri-Louis Duhamel du Monceau Georges-Louis Leclerc, Comte de Buffon 1700 - 1782 1707 - 1788
  7. 7. Frost ring Pinus sibiricaPhotograph: Fri s Schweingruber
  8. 8. 1737 !1708
  9. 9. Carl Linnaeus 1707 - 1778Photograph: brewbooks
  10. 10. Alexander Twining 1801 - 1884
  11. 11. “...every tree told the same story.”
  12. 12. Tucson, AZ
  13. 13. Flagstaff, AZ
  14. 14. Andrew Douglass (right) Flagstaff 1898
  15. 15. Lowell Observatory Flagstaff ArizonaPhotograph: Sam Wise
  16. 16. Tucson, AZ
  17. 17. Photograph: Howard Arno
  18. 18. Photograph: Christine and John Fournier
  19. 19. “ We do not know how old these ruins are, but I should be glad to have an opinion from you as to whether it might be possible to connect up with your modern and dated trees specimens [with wood specimens] from these [prehistoric] ruins by correlating the curves of growth… ” Clark Wissler to A.E. Douglass, 1909
  20. 20. Aztec RuinPublo Bonita
  21. 21. Aztec Ruin National Monument New MexicoPhotograph: Sco Catron
  22. 22. Pueblo Bonito New MexicoPhotograph: Chris M
  23. 23. Pueblo Bonito New Mexico (before it was excavated)
  24. 24. Photograph: Stones 55
  25. 25. Wupatki New Mexico
  26. 26. National Geographic ‘Beam Expeditions’ 1920s
  27. 27. Show Low, AZ
  28. 28. $5 for100 rings
  29. 29. $65 2011 dollars for100 rings
  30. 30. Living-tree chronology 1300 1400 1500 1600 1700 1800 1900‘Floating’ chronology
  31. 31. Living-tree chronology 1300 1400 1500 1600 1700 1800 1900 HH-39‘Floating’ chronology
  32. 32. Living-tree chronology 1300 1400 1500 1600 1700 1800 1900 HH-39700 800 900 1000 1100 1200 ‘Floating’ chronology
  33. 33. “ For the three of us, the experience was unforge able. To be present at the instance of the celebrated breakthrough in science that set the chronological house in order for the Southwestern United States was reward enough. But beyond that, was the privilege to work for a time at the side of Douglass, the scholar, the astronomer turned archaeologist. ” Emil Haury, 1962
  34. 34. Tree-ring display at elementary school Photograph:Tom Swetnam
  35. 35. FUTURELAB EXERCISE
  36. 36. Photograph: Kurt Kipfmueller
  37. 37. Photograph: Kurt Kipfmueller
  38. 38. Photograph: Kurt Kipfmueller
  39. 39. Photograph: Calvin Farris
  40. 40. Photograph: Calvin Farris
  41. 41. Photograph: Calvin Farris

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