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Volume 25, Number 2, 1983

Contents

FORWARD ii
PARTICIPANTS ix
I. NATURAL 14C VARIATIONS
Dendrochronology at Belfast as a Background to High-Precision Calibration
  MGL Baillie, JR Pilcher, and GW Pearson 171
High-Precision 14C Measurement of Irish Oaks to Show the Natural 14C Variations from 200 BC to 4000 BC
  GW Pearson, JR Pilcher and MGL Baillie 179
High-Precision 14C Measurement of Irish Oaks to Show the Natural Atmospheric 14C Variations of the AD Time Period
  GW Pearson and MGL Baillie 187
The Long-Term Radiocarbon Trend of the Absolute German Oak Tree-Ring Chronology, 2800 to 800 BC
  Bernd Becker 197
Radiocarbon Activity Variation in Dated Tree Rings Grown in Mackenzie Delta
  CY Fan, Chen Tie-Nei, Yun Si-Xun, and Dai Kai-Mei 205
14C Variations During the Upper Pleistocene
  JC Vogel 213
Statistics of the AD Record of Climatic and Carbon Isotopic Change
  Minze Stuiver 219   
14C Dating and Magnetostratigraphy
  Roy Thompson 229
Atmospheric Radiocarbon: Implications for the Geomagnetic Dipole Moment
  RS Sternberg and PE Damon 239
Modeling of Atmospheric Radiocarbon Fluctuations for the Past Three Centuries
  PE Damon, RS Sternberg, and CJ Radnell 249
Short-Term Variations in Radiocarbon Concentration with the 11-Year Solar Cycle
  Pavel Povinec 259
On a 50-Year "Climate-Free" δ13C Record from Juniper Tree Rings
  Steven W Leavitt and Austin Long 267
Temporal 10Be Variations in Ice
  Juerg Beer, Michael Andrée Hans Oeschger, Bernhard Stauffer, Richard Balzer, Georges Bonani, Christian Stoller, Martin Suter, Willy Woelfli, and Robert C Finkel 269
Calibrated 14C Dates in Central Europe - Same as Elsewhere?
  JC Freundlich and Burghart Schmidt 279
Dendrochronology of Bristlecone Pine: A Progress Report
  CW Ferguson and DA Graybill 287
II. HYDROLOGY
Mathematical Modeling of the Distribution of Natural 14C, 234U, and 238U in a Regional Ground-Water System
  FJ Pearson, Jr, CJ Noronha, and RW Andrews 291
13CO2 and 14CO2 Measurements on Soil Atmosphere Sampled in the Western Great Plains of the US
  Herbert Haas, DW Fisher, DC Thorstenson, and EP Weeks 301
Distribution of Gaseous 12CO2, 13CO2, and 14CO2 in the Sub-Soil Unsaturated Zone of the Western Great Plains
  DC Thorstenson, EP Weeks, Herbert Haas and DW Fisher 315
A Contribution to the Interpretation of 14C Groundwater Ages Considering the Example of a Partially Confirmed Sandstone Aquifer
  Lorenz Eichinger 347
Groundwater Circulation in the Meade Thrust Allochthon Evaluated by Radiocarbon Techniques
  AB Muller and AL Mayo 357
III. 14C APPLICATIONS
Radiocarbon Profiles of Rocky Islet, Xi-Sha Islands: Evidence of Recent Crustal Movements in the South China Sea
  Chen Yee-Chein and Jiao Wen-Quiang 375
Mid-Wisconsinan Radiocarbon Dates from Mastodon- and Mammoth-Bearing Springs, Ozark Highland, Missouri
  CV Haynes, Minze Stuiver, Herbert Haas, JE King, FB King and JJ Saunders 381
Radiocarbon Dating in the Arctic Region
  Ingrid U Olsson 393
Studies on Holocene Geochronology of the Coastal Region of Southern Fujian, China
  Chen Chenghui, Huang Baolin, and Wang Mingliang 395
The Unreliability of 14C Dates Obtained from Buried Sandy Podzols
  Mebus A Geyh Gunter Roeschmann, TA Wijmstra, and AA Middeldorp 409
Possible Depletion in 14C in Trees Growing in Calcareous Soils
  Henrik Tauber 417
Radiocarbon Dating of Tufa in Paleoclimatic Studies
  Dusan Srdoc, Nada Horvatincic, Bogomil Obelic, and Adela Sliepcevic 421
A System for Studying Carbon Allocation in Plants Using 11C-Labeled Carbon Dioxide
  Youhanna Fares, JD Goeschl, CE Magnuson, CE Nelson, BR Strain, CH Jaeger, and EG Bilpuch 429
Measurement of Carbon Fixation and Allocation Using 11C-Labeled Carbon Dioxide
  BR Strain, JD Goeschl, CH Jaeger, Youhanna Fares, CE Magnuson, and CE Nelson 441
IV. OCEANOGRAPHY
Long-Term Variability of Temperature and 14C in the Gulf Stream: Oceanographic Implications
  Ellen M Druffel 449
Carbon Exchange Between Atmosphere and Oceans in a Latitude-Dependent Advection-Diffusion Model
  Gerhard Kratz, CH Kohlmaier, EO Siré, Ursula Fischbach, and Horst Bröhl 459
V. GENERAL ASPECTS OF 14C TECHNIQUE
International Comparison of Proportional Gas Counters for 14C Activity Measurements
  Willem G Mook 475
Radiocarbon Dating of Millimole-Sized Gaseous Samples
  Dusan Srdoc, Bogomil Obelic, and Nada Horvatincic 485
Radiocarbon Dating Archaeologic and Environmental Samples Containing 10 to 120 Milligrams of Carbon
  John C Sheppard, J Fred Hopper, and Yvonne Welter 493
The-Radon Problem in 14C Dating
  Reidar Nydal 501
Evaluation of Direct-Precipitation and Gas-Evolution Methods for Radiocarbon Dating of Ground Water
  In Che Yang 511
An International Reference Material for Radiocarbon Dating
  WB Mann 519
Stable Isotope Fractionation During Benzene Synthesis For Radiocarbon Dating
  Hector O Panarello, Miguel C Albero, and Fernando E Angiolini 529
Radiocarbon Dating of Fossil Eggshell
  Austin Long, Richard Hendershott, and PS Martin 533
A Secondary Standard for Radiocarbon Dating
  Fernando E Angiolini and Miguel C Albero 541
A Multiple Proportional 14C Counter System for Milligram-Sized Samples
  Gert Hut, Jan Keyser, and Stef Wijma 547
Miniature Signals and Miniature Counters: Accuracy Assurance Via Microprocessors and Multiparameter Control Techniques
  LA Currie, RW Gerlach, CA Klouda, FC Ruegg, and GB Tompkins 553
Development and Operation of the Harwell Small Counter Facility for the Measurement of 14C in Very Small Samples
  RL Otlet G Huxtable, GV Evans, DC Humphreys, TD Short, and SJ Conchie 565
An Evaluation of Shielding Characteristics Applicable to Mini Gas Proportional Counter-Based 14C Dating Systems
  Lauri Kaihola, Hannu Kojola, Henry Polach, Erkki Soini, and Robert Otlet 577
VI. ANTHROPOGENIC 14C VARIATIONS
Anthropogenic 14C Variations
  Monika Segl, Ingeborg Levin, Hilla Schoch-Fischer, Marianne Münnich, Bernd Kromer, Jochen Tschiersch, and KO Münnich 583
The Use of 14C in Natural Materials to Establish the Average Gaseous Dispersion Patterns of Releases from Nuclear Installations
  RL Otlet, AJ Walker, and H Longley 593
On the Origin of Carbonaceous Particles in American Cities: Results of Radiocarbon "Dating" and Chemical Characterization
  EA Currie, CA Klouda, RE Continetti, IR Kaplan, WW Wong, TG Dzubay, and RK Stevens 603
Radiocarbon Measurements of Particulates in Smog
  Rainer Berger, RM Johnson, and JR Holmes 615
Anthropogenic Changes in Organic Carbon and Trace Metal Input to Lake Washington
  WR Schell, JR Swanson, and LA Currie 621
Time History of Human Gallstones: Application of the Post-Bomb Radiocarbon Signal
  Ellen M Druffel and Henry YI Mok 629
VII. ARCHAEOLOGY
The Integration of Radiocarbon Dating in Archaeology
  HT Waterbolk 639
The Reliability of Archaeologic Interpretation of Radiocarbon Dates
  Horst Willkomm 645
Non-Concordance of Radiocarbon and Amino Acid Racemization Deduced Age Estimates on Human Bone: Implications for the Dating of the Earliest Homo Sapiens in the New World
  RE Taylor 647
Direct Bone Dating in a Small CO2 Counter
  Rainer Berger 655
Radiocarbon Database: A Pilot Project
  Steinar Gulliksen 661
Database Management Systems, Radiocarbon, and Archaeology
  JC Moffett and RE Webb 667
Possibilities in the Dating of Writing Materials and Textiles
  Richard Burleigh and AD Baynes-Cope 669
VIII. TECHNICAL ASPECTS OF ACCELERATOR MASS SPECTROMETRY
Accelerator Mass Spectrometry: From Nuclear Physics to Dating
  Walter Kutschera 677
Tandem Accelerator Measurements of 10Be Deposition Rates
  DE Nelson, RG Korteling, JR Southon, JS Vogel, I Nowikow, TL Ku, Masashi Kusakabe, and JL Reyss 693
Recent 14C Measurements with the Chalk River Tandem Accelerator
  RM Brown, HR Andrews, GC Ball, N Burn, WG Davies, Y Imahori, JCD Milton and W Workman 701
Current 14C Measurements with the University of Washington Accelerator Facility for Radioisotope Dating
  GW Farwell, PM Grootes, DD Leach, FH Schmidt, and Minze Stuiver 711
Results of Tests and Measurements from the NSF Regional Accelerator Facility for Radioisotope Dating
  DJ Donahue, TH Zabel, AJT Jull, PE Damon, and KH Purser 719
The Oxford Radiocarbon Accelerator Facility
  Richard Gillespie, REM Hedges, and NR White 729
Radiocarbon Dating with the Utrecht Tandem Accelerator
  Y Van der Borg, JA Hoogenboom, RA Jelmersma, Abraham Vermeer, and Gert Hut 739
Radioisotope Dating with the ETHZ-EN Tandem Accelerator
  Willy Woelfli, Georges Bonani, Martin Suter, Richard Balzer, Marzio Nessie, Christian Stoller, Juerg Beer, Hans Oeschger, and Michael Andrée 745
Technological Advances in the University of Washington Accelerator Mass Spectrometry System
  GW Farwell, PM Grootes, DD Leach, and FH Schmidt 755
Production of C- Directly from CO2 Using the ANIS Sputter Source
  Jan Heinemeier and Hans Henrik Andersen 761
Sample Chemistry for the Oxford High Energy Mass Spectrometer
  Richard Gillespie and Robert EM Hedges 771
Survey of Simple Carbon Compounds for Use in a Negative Ion Sputter Source
  JS Vogel, IG Nowikow, JR Southon, and DE Nelson 775
Detection of the 36Cl Radioisotope at the Rehovot 14UD Pelletron Accelerator
  Michael Paul, Oded Meirav, Walter Henning, Walter Kutschera, Robert Kaim, Mark B Goldberg, Jean Gerber, William Hering, Aaron Kaufman, and Mordeckai Magaritz 785
BUSINESS MEETING
International Agreements and the Use of the New Oxalic Acid Standards
  Minze Stuiver 793