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 GEOG3839.9, The history of dendrochronology Presentation Transcript

  • 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 STANDARDIZATION THE PRINCIPLE OFECOLOGICAL AMPLITUDE THE PRINCIPLE OF SITE SELECTION
  • “ 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
  • “ ... 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
  • Henri-Louis Duhamel du Monceau Georges-Louis Leclerc, Comte de Buffon 1700 - 1782 1707 - 1788
  • 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 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
  • 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 HH-39‘Floating’ chronology
  • Living-tree chronology 1300 1400 1500 1600 1700 1800 1900 HH-39700 800 900 1000 1100 1200 ‘Floating’ chronology
  • “ 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
  • 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