Book of Abstracts
Total Page:16
File Type:pdf, Size:1020Kb
23rd International Radiocarbon Conference June 17-22 2018 Trondheim Book of Abstracts 23rd International Radiocarbon Conference 2 Table of Content Table of Content ..................................................................................................................................................................... 2 Oral Presentations .................................................................................................................................................................. 3 Poster Presentations ............................................................................................................................................................. 99 Poster Session 1 ................................................................................................................................................................ 99 Poster Session 2 .............................................................................................................................................................. 188 Author Index ....................................................................................................................................................................... 277 3 23rd International Radiocarbon Conference Oral Presentations Updated program, 2018-06-15 Radiocarbon 2018 schedule: Speakers Time Sunday Monday Tuesday 17-06-18 18-06-18 19-06-18 08:00 Front desk Registration 08:30 M. Sarnthein, 302 Opening ceremony 09:00 A. McNichol, 307 E. Boaretto 09:30 R. Hopkins, 110 NTNU welcoming 10:00 Registration Coffee break Coffee break 10:30 I. Carmi, 18 E. Delque-Kolic, 151 A. Bayliss, 66 R. Bhushan, 244 V. Levchenko, 92 11:00 Ionplus workshop P. Grootes, 356 L. Scott Cummings, 300 A. Aerts-Bijma, 40 11:30 M. Butzin, 89 M. Boudin, 19 J. Vogel, 270 M. Gran, 324 J. Southon, 277 K. Douka, 340 12:00 S. Freeman, 293 N. Steuri, 146 G. Soulet, 137 R. Wood, 32 Lunch Registration 12:30 M. Klein, 63 M. Kuitems, 140 13:00 Lunch Ionplus Lunch 13:30 workshop E. Keaveney, 85 T. Deviese, 16 14:00 M. He, 87 C. Pearson, 188 S. Beaupre, 184 L. Becerra-Valdivia, 12 Coffee break NEC workshop G. Prasad, 295 L. Beck, 10 A. Sveinsjörndóttir, 41 A. Zazzo, 222 14:30 D. De Maria, 123 A. Quiles, 157 J. Olsen, 268 C. Hadden, 298 15:00 Ionplus X. Xu, 65 L. Webster, 224 S. Lindauer, 71 T. Omori, 329 workshop P. Ascough, 284 J. Regev, 207 15:30 Coffee break Coffee break N. Frank, 355 E. Casanova, 217 16:00 N. Tisnérat Laborde, 199 T. Knowles, 246 16:30 Poster Session 1 17:00 Poster Session 1 17:30 Ice breaker 18:00 18:30 City Tour 19:00 Pub of the Night: 19:30 Kiegelkroa Pub of the Night: Den Gode Nabo 23rd International Radiocarbon Conference 4 Updated program, 2018-06-15 Radiocarbon 2018 schedule: Speakers Time Wednesday Thursday Friday 20-06-18 21-06-18 22-06-18 08:00 Front desk Front desk 08:30 P. Reimer, 4 C. Hatté, 248 Front desk 09:00 A. Mouchet, 328 F. Miyake, 166 W. Kutschera, 61 09:30 T. Eglinton, 261 S. Szidat, 35 L. Wacker, 292 10:00 Coffee break Coffee break 10:30 E. Bard, 250 T. Heaton, 156 A. Smith, 369 S. Kudsk, 99 Coffee break R. Bhushan, 230 R. Muscheler, 311 J. Rethemeyer, 102 R. Friedrich, 58 L. Hendriks, 154 T. Heaton, 257 11:00 P. Köhler, 14 E. Queiroz Alves, 31 G. Mollenhauer, 36 A. Cherkinsky, 172 I. Hajdas, 121 M. Vibet, 275 11:30 S. Fallon, 280 M. Okuno, 352 B. Philippsen, 128 M. Dee, 149 V. Levchenko, 91 A. Neocleous, 135 P. Povinec, 238 J. Southon, 361 C. Espic, 82 T. Jull, 145 P. Grootes, 344 A. Millard, 314 12:00 F. Xie, 160 C. Bronk Ramsey, 130 G. Soulet, 129 G. Quarta, 88 D. Chivall, 312 C. Hamann, 96 12:30 13:00 Lunch Lunch Lunch 13:30 P. Ding, 272 A. Hogg, 34 C. Hill, 141 B. Philippsen, 228 M. Scott, 97 14:00 B. Walker, 176 P. Jacobsson, 45 I. Krajcar Bronić, 174 H. Svarva, 360 M. Simon, 320 A. Bayliss, 220 J. Beem-Miller, 234 L. Regev, 212 C. Bronk Ramsey, 131 14:30 C. Hatté, 67 A. Sookdeo, 169 J. Heinemeier, 266 H. Shen, 17 I. Hajdas, 124 15:00 G. dos Santos, 165 S. Dalby, 310 C. Messager, 11 R. Patrut, 164 Coffee break 15:30 Coffee break Coffee break 16:00 Conference wrap up, awards, next conference, closing 16:30 Poster Session 2 Poster Session 2 17:00 17:30 18:00 18:30 Organ concert and 19:00 conference dinner Walk of the Night: Pub of the Night: Ladekaia 19:30 Lille London 5 23rd International Radiocarbon Conference Monday 18-Jun-18 - 9:15 - Sansiro 1 Archaeological Chronology: a Challenging Research Field Elisabetta Boaretto1 1 Kimmel Center for Archaeological Science and D-REAMS Radiocarbon Laboratory Weizmann Institute of Science. Radiocarbon analysis is a very powerful tool for obtaining ages of strata within an archaeological site. In the words of William Libby “The determination of the chronology of ancient civilizations may be said to be the main archeological problem and task of radiocarbon dating.” This field of research, based on radiocarbon dating, has indeed changed several fundamental paradigms in archaeology, including the use of typology for synchronization between sites. Chronological research in archaeology is limited by the relatively few materials that can be used for high resolution dating. Therefore the development of several new materials for dating such as ash, aragonite and phytoliths is underway, and research aimed at using mortar and plaster for dating, is still ongoing. Dating of single molecules and specific organic fractions in the material is also moving forward and radiocarbon researchers are looking for new materials for dating in order to improve chronological resolution. What next? First step for solving challenging chronological problems in archaeology that relate to cultural changes is in the excavation; understanding the formation of the archaeological record. The excavation is where a chronology student should start integrating and applying other analytical methods, in addition to radiocarbon, to understand the archaeological record and its chronology. Radiocarbon 2018 schedule: session color scheme M1 Developments in measurement techniques M2 Developments in sample pretreatment M3 Compound specific radiocarbon analysis M4 New and updated facilities, status reports M5 Laboratory management and organization M6 Calibration and calibration records M7 Statistical analysis and modelling A1 Hydrology, limnology, oceanography, reservoir effects A2 Terrestrial environment, sedimentology, plant, landscape etc. A3 Climate studies A4 Soil dynamics A5 Archaeology A6 Dendrochronology and single-year analysis A7 Diet studies A8 Anthropogenic impacts A9 Forensics application of radiocarbon A11 Other radiocarbon applications O1 Other cosmogenic nuclides 23rd International Radiocarbon Conference 6 Monday 18-Jun-18 - 10:30 - 11:30 - Sansiro 1 Confessions of a Serial Polygamist: the reality of radiocarbon reproducibility in archaeological samples Alex Bayliss1, Peter Marshall1 1 Historic England, London, United Kingdom. Since 1993 Historic England (and its predecessor English Heritage) has commissioned over 8000 radiocarbon measurements on archaeological samples. Over 80 % of these have been interpreted within formal Bayesian statistical models. The multiple strands of reinforcing evidence incorporated in these models provide precise chronologies that make stringent demands on the accuracy of the radiocarbon results included in the analysis. Inter-laboratory replication is consequently a routine part of model validation and construction. We report an analysis of replicate measurements from at least two laboratories on over 1000 archaeological samples. It is clear that laboratory reproducibility accounts for only part of the observed variation. The type of material dated is also critical to the reproducibility of measurements, with some sample types proving particularly problematic. Monday 18-Jun-18 - 10:30 - 11:30 - Sansiro 1 Detailed uncertainty analysis based on the first year of MICADAS in an experienced AMS group. Anita Aerts-Bijma1, Harro Meijer1, Dipayan Paul1, Mike Dee1, Sanne Palstra1 1 University of Groningen, Groningen, Netherlands. After 25 years of loyal service, our High Voltage 2.5 MV Tandetron AMS was decommissioned when we moved our laboratories to our new building in spring 2017. As successor, we received an IonPlus “MICADAS “ AMS instrument. Compared to the previous machine, the most important innovation the Micadas brought to our lab is a substantially increased efficiency, resulting in much higher count rates and thus, at least in principle, significantly increased precision. For our previous AMS facility, we used calculated “best estimates” for uncertainties that were based on all error sources in the measurements (next to the Poisson counting error also the standard deviation of the backgrounds, error in the mean of the calibration standards, and the uncertainty in the ¹³C correction). Over the years, we verified that these uncertainties were indeed a good measure for the spread of the measurements [1]. With the Micadas we want to follow the same approach, that is, quantifying uncertainties as well as possible, instead of using (more or less) an educated guess. As the Poisson uncertainty is much lower than before (often close to 1 ‰ compared to almost 3 ‰ previously for 100 % activity), several other uncertainty sources that were overwhelmed previously become visible, such as the spread caused by the combustion process (carry-over, incomplete combustion,…), chemical pretreatment variability, and others. We will present the first results (based on one full year of operation) for the uncertainty budget of our ¹⁴C measurements,