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(completed by I. Panyushkina)\nIntCal19\n\na)\tSample identifier (Dendro-Lab Key-code): 1971#059\n      Lab of Tree-Ring Research Archive and Collections, University of Arizona \nb)\tSample certainly derives from a single tree (Y\/N): Y\nc)\tSite: Methuselah Walk site (MW) in the White Mountains, California  \n       37\u00b0 22' 45.84'' N; 118\u00b0 9' 55.44'' W; 3350 m asl \nd)\tObject type: Remnant log \ne)\tPreservation: excellent, weathered edges  \nf)\tSample type (e.g. core or slice): cross-section\ng)\tSpecies: Pinus longaeva\nh)\tNo of rings: 503\ni)\tPith (Y\/N): N\nj)\tWaney edge: N\nk)\tBark (Y\/N): N\nl)\tSapwood (Y\/N): N\nm)\tMethodology used for dating: \nn)\tThe calendar age of the rings was determined with two cross-dating approaches: skeleton plotting and correlation of tree-ring width measurements. Originally the collected specimen was crossdated with skeleton plotting by C.W. Ferguson in 1971, and archived at the LTRR.  The specimen\u2019s surface has prick points for the decadal ring count and written dates in astronomical years. Digital catalog of LTRR Collection has records of this specimen as 71#59 and 1971#059.  Later the ring widths of this specimen were measured and included into the Methuselah Walk chronology of Bristlecone Pine (LaMarche and Harlan 1973). The ID of this TRW series is #995924 for the period -5924-5422 (503 yrs). See below a copy of  COFECHA output with correlation table between this series and the Methuselah Walk master chronology. \nFor the 14C study, we made new measurements of tree-ring widths for the interval -5559-5371 astronomical years (189 yrs) to confirm the crossdates of rings to be sampled. ID of this TRW series is # 71-59 (see attached 197159 data). A wooden bock was cut from the specimen following the measuring line (see photo at the next page). The sampled specimen was placed back to the archive.    \no)\tCorrelation of series #995924 with MW master (LaMarche and Harlan 1973) is 0.69. See line for series # 330\np)\tDated individually (Y\/N): Y\nCross-dating Steps: \nIn 2016 for the purpose of 5480 BC excursion study (Miyake et al. 2017, PNAS), C. Baisan and M. Salzer confirmed the dating to be dissected rings with  new ring width measurements  (C. Baisan) for the interval from -5559 to -5371 (189 yrs). The new measurements were correlated with the Methuselah Walk master chronology. I. Panyushkina supervised the ring cutting and re-checked the target interval dates with the MW master record. \nThe dates are given in astronomical years. The TRW series includes the Zero Year. \nq)\tRaw ring width series: #197159 series with span -5559 to -5371 (189 yrs) astronomical yrs. \n Attached files:  \nMW 1971-59cof.out   -  COFECHA output for series #197159 and MW master chronology  ca535.rwl (see series #197159 at the position #1). Correlation with the master is 0.67. \nMW 1971-59.rwl    -File of cross-dated measurements.    \nPublicly deposited (Y\/N): No  \nSummary of cross-dating history: Wood specimen ID is #71-59 or 1971#59. Tree-ring width series ID is #995924 in the Methuselah Walk master chronology (LaMarche and Harlan 1973), and #197159 series in the 5480 BC excursion study. \np)\tRemainder of sample is stored in which archive?\n\tLTRR, University of Arizona, Tucson, USA \n","data":[],"refs":[]},{"series":"Int_8_1","series_type":"IntCal_Data","parameter_list":"","header_list":"","selected":true,"intcal_set_type":"Int","intcal_set":8,"intcal_division":1,"series_sample":"1963-043","notes":"","data":{"z":[445.5,435.5,425.5,415.5,405.5,395.5,385.5,375.5,365.5,355.5,345.5,335.5,325.5,315.5,305.5,305.5,295.5,285.5,275.5,265.5,255.5,245.5,235.5,225.5,215.5,215.5,205.5,195.5,195.5,185.5,175.5,175.5,165.5,155.5,145.5,135.5,135.5,125.5,115.5,115.5,105.5,95.5,85.5,75.5,65.5,65.5,55.5,45.5,35.5,35.5,25.5,15.5,5.5],"z_range":[9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9],"t":[-354.5,-364.5,-374.5,-384.5,-394.5,-404.5,-414.5,-424.5,-434.5,-444.5,-454.5,-464.5,-474.5,-484.5,-494.5,-494.5,-504.5,-514.5,-524.5,-534.5,-544.5,-554.5,-564.5,-574.5,-584.5,-584.5,-594.5,-604.5,-604.5,-614.5,-624.5,-624.5,-634.5,-644.5,-654.5,-664.5,-664.5,-674.5,-684.5,-684.5,-694.5,-704.5,-714.5,-724.5,-734.5,-734.5,-744.5,-754.5,-764.5,-764.5,-774.5,-784.5,-794.5],"t_sigma":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"intcal_data_id":[14521,14520,14519,14518,14517,14516,14515,14514,14513,14512,14511,14510,14509,14508,14507,14506,14505,14504,14503,14502,14501,14500,14499,14498,14497,14496,14495,14494,14493,14492,14491,14490,14489,14488,14487,14486,14485,14484,14483,14482,14481,14480,14479,14478,14477,14476,14475,14474,14473,14472,14471,14470,14469],"intcal_seq_no":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"sample":["1963-043 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(Dendrochronologists Chris Baisan, Matthew Salzer, 14C publication - Taylor and Southon 2013)\n\n\na) Sample identifier (Dendro-Lab Key-code): 1963-043\nb) Sample certainly derives from a single tree (Y\/N): Y \nc) Site: Methuselah Walk White Mountains, California, USA\nd) Object type: Standing tree originally, dead remnant pieces when sampled\ne) Preservation:  Dry, mountain environment, resinous species \nf) Sample type (e.g. core or slice): slice\ng) Species:  Pinus longaeva D.K.Bailey\nh) No of rings: 748\ni) Pith (Y\/N): N\nj) Bark (Y\/N): N\nk) Waney edge: N\nl) Sapwood (Y\/N): N\nm) Methodology used for dating: \n\nGraphically using the skeleton plot method (Stokes and Smiley 1968), and published as part of Ferguson\u2019s original chronology in 1969. This wood was later remeasured by Salzer as part of the Methuselah Walk chronology and dating confirmed using COFECHA12K version 6.06P.  Decades were kept as vouchers from the original 14C sampling of the bristlecone record. These decades and the remaining three sections of material representing the single tree are marked up in astronomical calendar with the year 0. The decades sent to Southon et al. were mistakenly marked 800 to 350 BC because the sender did not realize the significance of the negative year numbers denoting AD\/BC with 0. Instead the sample packets were mis-labelled as \u201cBC\u201d which led to the final publication being offset by 1 year.  Years in the ring-width data and table below are the correct astronomical years including year 0. The attached Excel datasheet is also corrected for this issue.\n\nThe table below shows the good correlation between 1963-043 and the Methusalah Walk master chronology (Salzer and Hughes 2007) with the 1963-043 tree removed.\n\nDated individually (Y\/N): Y\n\nIBM#\tTRL ID\tMeasured ID\tFY\tLY\tYRS\tCORR\tMEAN\tcore\tx-section\n990549\t1963-043\t995076\t-800\t-51\t750\t0.774\t0.26\t-\t1\n\nn) Raw ring width series attached\n\nPublicly deposited (Y\/N): Y \u2013 ITRDB\n\no) Remainder of sample is stored in which archive?\nLaboratory of Tree-Ring Research, University of Arizona\n\np) 14C-Lab-Numbers \/ Sampled rings \/ tree\n\nRings sampled in consecutive sequence from raw measurments below label -800 (Ring 1) through to label -1670 (Ring 156). There were no missing rings in the dissected sequence.\n\t\nh) \tLocation of the remaining part of the sampled tree, or of high-resolution images where the sample has been destroyed is specified. \n\nRemaining sample stored in Laboratory of Tree-Ring Laboratory Respository.  Remainder of tree is still in the landscape:\n\nSample\t Lat.\tLon.\n1963-043\t37.3808\t-118.163\n\n","data":[],"refs":[]},{"series":"Study_8518","series_type":"NOAA_NCEI_Study","parameter_list":"","header_list":"","selected":true,"noaa_ncei_study":8518,"data":[],"refs":["doi:10.25921\/wkpt-8m49"]},{"series":"Study_3376","series_type":"NOAA_NCEI_Study","parameter_list":"","header_list":"","selected":true,"noaa_ncei_study":3376,"data":[],"refs":["doi:10.25921\/ppqj-xv48"]}],"refs":["doi:10.1016\/j.nimb.2012.08.057","doi:10.1016\/j.yqres.2006.07.004","doi:10.1017\/s0033822200005592","doi:10.1029\/jc078i036p08849","doi:10.1073\/pnas.1613144114"]}}],"bibliography":[{"ref":"miyake2017lei","firstauthor":"Miyake","year":2017,"reftype":"article","author":"Miyake, Fusa and Jull, A. J. Timothy and Panyushkina, Irina P. and Wacker, Lukas and Salzer, Matthew and Baisan, Christopher H. and Lange, Todd and Cruz, Richard and Masuda, Kimiaki and Nakamura, Toshio","title":"Large14C excursion in 5480 BC indicates an abnormal sun in the mid-Holocene","journal":"Proceedings of the National Academy of Sciences","volume":"114","number":"5","pagefrom":0,"pageto":0,"series":"","publisher":"Proceedings of the National Academy of Sciences","address":"","booktitle":"","chapter":null,"edition":null,"organization":"","school":"","institution":"","url":"https:\/\/dx.doi.org\/10.1073\/pnas.1613144114","doi":"10.1073\/pnas.1613144114","isbn":"","citation":"Miyake et al., 2017","reference":"Miyake, F., Jull, A.J.T., Panyushkina, I.P., Wacker, L., Salzer, M., Baisan, C.H., Lange, T., Cruz, R., Masuda, K. and Nakamura, T. (2017) Large14C excursion in 5480 BC indicates an abnormal sun in the mid-Holocene. Proceedings of the National Academy of Sciences, 114(5), pp.881-884. doi:10.1073\/pnas.1613144114"},{"ref":"taylor2013rfm","firstauthor":"Taylor","year":2013,"reftype":"article","author":"Taylor, R.E. and Southon, John","title":"Reviewing the Mid-First Millennium BC 14C \u201cwarp\u201d using 14C\/bristlecone pine data","journal":"Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms","volume":"294","number":"","pagefrom":0,"pageto":0,"series":"","publisher":"Elsevier BV","address":"","booktitle":"","chapter":null,"edition":null,"organization":"","school":"","institution":"","url":"https:\/\/dx.doi.org\/10.1016\/j.nimb.2012.08.057","doi":"10.1016\/j.nimb.2012.08.057","isbn":"","citation":"Taylor and Southon, 2013","reference":"Taylor, R.E. and Southon, J. (2013) Reviewing the Mid-First Millennium BC 14C \u201cwarp\u201d using 14C\/bristlecone pine data. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 294, pp.440-443. doi:10.1016\/j.nimb.2012.08.057"},{"ref":"hughes2010hmw","firstauthor":"Hughes","year":2010,"reftype":"misc","author":"Hughes, M.K. and  Salzer, M.W.","title":"Hughes - Methuselah Walk Update - PILO - ITRDB CA670","journal":"","volume":"","number":"","pagefrom":0,"pageto":0,"series":"","publisher":"","address":"","booktitle":"","chapter":null,"edition":null,"organization":"","school":"","institution":"","url":"https:\/\/doi.org\/10.25921\/wkpt-8m49","doi":"10.25921\/wkpt-8m49","isbn":"","citation":"Hughes et al., 2010","reference":"Hughes, M.K. and Salzer, M.W. (2010) Hughes - Methuselah Walk Update - PILO - ITRDB CA670. doi:10.25921\/wkpt-8m49"},{"ref":"salzer2007brv","firstauthor":"Salzer","year":2007,"reftype":"article","author":"Salzer, Matthew W. and Hughes, Malcolm K.","title":"Bristlecone pine tree rings and volcanic eruptions over the last 5000 yr","journal":"Quaternary Research","volume":"67","number":"1","pagefrom":0,"pageto":0,"series":"","publisher":"Cambridge University Press (CUP)","address":"","booktitle":"","chapter":null,"edition":null,"organization":"","school":"","institution":"","url":"https:\/\/dx.doi.org\/10.1016\/j.yqres.2006.07.004","doi":"10.1016\/j.yqres.2006.07.004","isbn":"","citation":"Salzer and Hughes, 2007","reference":"Salzer, M.W. and Hughes, M.K. (2007) Bristlecone pine tree rings and volcanic eruptions over the last 5000 yr. Quaternary Research, 67(1), pp.57-68. doi:10.1016\/j.yqres.2006.07.004"},{"ref":"graybill2002gmw","firstauthor":"Graybill","year":2002,"reftype":"misc","author":"Graybill, D.A.","title":"Graybill - Methuselah Walk - PILO - ITRDB CA535","journal":"","volume":"","number":"","pagefrom":0,"pageto":0,"series":"","publisher":"","address":"","booktitle":"","chapter":null,"edition":null,"organization":"","school":"","institution":"","url":"https:\/\/doi.org\/10.25921\/ppqj-xv48","doi":"10.25921\/ppqj-xv48","isbn":"","citation":"Graybill 2002","reference":"Graybill, D.A. (2002) Graybill - Methuselah Walk - PILO - ITRDB CA535. doi:10.25921\/ppqj-xv48"},{"ref":"ferguson1983dbp","firstauthor":"Ferguson","year":1983,"reftype":"article","author":"Ferguson, C W and Graybill, D A","title":"Dendrochronology of Bristlecone Pine: A Progress Report","journal":"Radiocarbon","volume":"25","number":"2","pagefrom":0,"pageto":0,"series":"","publisher":"Cambridge University Press (CUP)","address":"","booktitle":"","chapter":null,"edition":null,"organization":"","school":"","institution":"","url":"https:\/\/dx.doi.org\/10.1017\/s0033822200005592","doi":"10.1017\/s0033822200005592","isbn":"","citation":"Ferguson and Graybill, 1983","reference":"Ferguson, C.W. and Graybill, D.A. (1983) Dendrochronology of Bristlecone Pine: A Progress Report. Radiocarbon, 25(2), pp.287-288. doi:10.1017\/s0033822200005592"},{"ref":"lamarche1973adb","firstauthor":"LaMarche","year":1973,"reftype":"article","author":"LaMarche, V. C. and Harlan, T. P.","title":"Accuracy of tree ring dating of bristlecone pine for calibration of the radiocarbon time scale","journal":"Journal of Geophysical Research","volume":"78","number":"36","pagefrom":0,"pageto":0,"series":"","publisher":"American Geophysical Union (AGU)","address":"","booktitle":"","chapter":null,"edition":null,"organization":"","school":"","institution":"","url":"https:\/\/dx.doi.org\/10.1029\/jc078i036p08849","doi":"10.1029\/jc078i036p08849","isbn":"","citation":"LaMarche and Harlan, 1973","reference":"LaMarche, V.C. and Harlan, T.P. (1973) Accuracy of tree ring dating of bristlecone pine for calibration of the radiocarbon time scale. Journal of Geophysical Research, 78(36), pp.8849-8858. doi:10.1029\/jc078i036p08849"}],"compilation":{"by":"IntCal group","url":"https:\/\/intchron.org\/archive\/IntCal\/IntCal20\/index.json","updated":null,"retrieved":"2025-08-02T13:33:48+01:00"},"schema":"https:\/\/intchron.org\/schema"}