Boston Mill Dam - MA005 Additional Site Information Daniel Miles Purpose of Collection: Archaeological Dating Tree Species: White and Red Oak, Q. alba and Q. rubra Funding Sources: This material was paid for by a grant from the Society for the Preservation of New England Antiquities (SPNEA) together with an anonymous donor and the Boston central Artery Archaeological Project. Reference: Miles, D.W.H., M.J. Worthington, and A.A. Grady, 2002, Development of Standard Tree-ring Chronologies for Dating Historic Structures in Eastern Massachusetts, Phase II, Society for the Preservation of New England Antiquities, Interim Report 2002/6, Boston, MA. COFECHA output: Chronology file name : MA005.CRN Measurement file name : MA005.RWL Date checked : 22MAR05 Checked by : H. ADAMS AND J. LUKAS Beginning year : 1454 Ending year : 1683 Principal investigators: D.Miles Site name : Boston Mill Dam Site location : Mass. Species information : QUSP OAK Latitude : 4222 Longitude : -07104 Elevation : 15M Series intercorrelation: 0.635 Avg mean sensitivity : 0.201 Avg standard deviation : 0.467 Avg autocorrelation : 0.749 Number dated series : 6 Segment length tested : 50 Number problem segments: 6 Pct problem segments : 16.22 PART 5: CORRELATION OF SERIES BY SEGMENTS: ma005.rwl 10:33 Tue 22 Mar 2005 Page 5 ------------------------------------------------------------------------------------------------------------------------------------ Correlations of 50-year dated segments, lagged 25 years Flags: A = correlation under .3281 but highest as dated; B = correlation higher at other than dated position Seq Series Time_span 1450 1475 1500 1525 1550 1575 1600 1625 1650 1499 1524 1549 1574 1599 1624 1649 1674 1699 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 bmd1a1 1461 1521 .69 .73 2 bmd1a2 1522 1632 .83 .82 .80 .66 .69 3 bmd1b 1454 1657 .72 .76 .82 .70 .44B .33B .32B .32A 4 bmd1c 1455 1683 .74 .75 .81 .73 .68 .68 .58 .28A .26A 5 bmd1d 1460 1675 .74 .75 .83 .81 .81 .79 .62 .46 .47 6 bmd1e 1589 1683 .68 .71 .54 .40 Av segment correlation .72 .75 .82 .77 .68 .63 .58 .40 .38 PART 7: DESCRIPTIVE STATISTICS: ma005.rwl 10:33 Tue 22 Mar 2005 Page 6 ------------------------------------------------------------------------------------------------------------------------------------ Corr //-------- Unfiltered --------\\ //---- Filtered -----\\ No. No. No. with Mean Max Std Auto Mean Max Std Auto AR Seq Series Interval Years Segmt Flags Master msmt msmt dev corr sens value dev corr () --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- 1 bmd1a1 1461 1521 61 2 0 .705 1.93 3.27 .558 .578 .236 2.56 .508 .026 1 2 bmd1a2 1522 1632 111 5 0 .750 1.08 1.79 .298 .675 .174 2.48 .389 .011 1 3 bmd1b 1454 1657 204 8 4 .566 1.22 4.07 .582 .710 .232 2.88 .393 .025 2 4 bmd1c 1455 1683 229 9 2 .601 1.09 3.32 .530 .822 .197 2.81 .370 .038 1 5 bmd1d 1460 1675 216 9 0 .712 1.00 2.63 .446 .810 .194 2.68 .354 .027 1 6 bmd1e 1589 1683 95 4 0 .506 .83 1.55 .254 .716 .165 2.54 .384 -.016 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 916 37 6 .635 1.12 4.07 .467 .749 .201 2.88 .384 .023