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| BERN | ||
|---|---|---|
| FOREWORD | vi | |
| PARTICIPANTS | vii | |
| Natural 14C Variations | ||
| Solar Modulation Effects in Terrestrial Production of Carbon-14 | ||
| Giuliana Castagnoli and Devendra Lal | 133 | |
| Variations in Radiocarbon Production in the Earth's Atmosphere | ||
| S A Korff and R B Mendell | 159 | |
| Patterns of Atmospheric 14C Changes | ||
| Minze Stuiver and P D Quay | 166 | |
| 14C Variations Caused by Changes in the Global Carbon Cycle | ||
| Ulrich Siegenthaler, Martin Heimann, and Hans Oeschger | 177 | |
| Geomagnetic Strength Over the Last 50,000 Years and Changes in Atmospheric 14C Concentration: Emerging Trends | ||
| Mike Barbetti | 192 | |
| The Radiocarbon Record in Tree Rings of the Last 8000 Years | ||
| H E Suess | 200 | |
| Accuracy of the Radiocarbon Time-Scale Beyond 15,000 BP | ||
| J C Vogel | 210 | |
| Tree-Ring Dating and Radiocarbon Calibration in South-Central Europe | ||
| Bernd Becker | 219 | |
| Information on the CO2 Cycle from Ice Core Studies | ||
| Werner Berner, Hans Oeschger, and Bernhard Stauffer | 227 | |
| Natural Processes and Time Fluctuations in the Radiocarbon Concentration of the Atmosphere | ||
| V E Dergachev and G E Kocharov | 236 | |
| Temporal Variations in Cosmogenic 10Be Production: Implications for Radiocarbon Dating | ||
| G M Raisbeck and Francoise Yiou | 245 | |
| On the Climate-Radiocarbon Relationship: Nitric Oxide and Ozone as Connecting Links Between Radiation and Earth's Surface Temperatures | ||
| Walter Roedel | 250 | |
| Computer-Matched Radiocarbon Dates of Floating Tree-Ring Series | ||
| H H Kruse, T W Linick, H E Suess, and Bernd Becker | 260 | |
| Medium-Term Atmospheric 14C Variations | ||
| A F M de Jong and W G Mook | 267 | |
| Natural Radiocarbon Variations from AD 200 to 800 | ||
| Michael Bruns, K O Münnich, and Bernd Becker | 273 | |
| Radiocarbon Variations in Consecutive Single Rings of a 4000-Year-Old Pine from the British Isles | ||
| A D Hewson and Richard Burleigh | 278 | |
| Comparison of 14C Dates and Other Age Estimations Between 2000 BC and AD 1000 | ||
| Horst Willkomm | 286 | |
| Possibility of Climatically Induced Variations in the 14C and 13C Enrichment Patterns as Recorded by a 3000-Year-Old Norwegian Pine | ||
| D D Harkness and B F Miller | 291 | |
| 14C and Other Parameters During the Younger Dryas Cold Phase | ||
| Hans Oeschger, Max Welten, Ulrich Eicher, Markus Möll, Trudi Riesen, Ulrich Siegenthaler, and Samuel Wegmüller | 299 | |
| New Measurements of the 81Kr Atmospheric Abundance | ||
| V V Kuzminov and A A Pomansky | 311 | |
| The Concept of DC Gain in Modeling Secular Variations in Atmospheric 14C | ||
| Gregory Lazear, P E Damon, and Robert Sternberg | 318 | |
| Experimental and Theoretical Data on Radiocarbon Variation in the Earth's Atmosphere in the Past | ||
| V A Dergachev | 328 | |
| High Precision Radiocarbon Dating by Liquid Scintillation Counting Applied to Radiocarbon Timescale Calibration | ||
| G W Pearson | 337 | |
| Man-Made 14C Variations | ||
| Mini-Radiocarbon Measurements, Chemical Selectivity, and the Impact of Man on Environmental Pollution and Climate | ||
| L A Currie, G A Klouda, and J A Cooper | 349 | |
| Radiocarbon in Annual Coral Rings of Belize and Florida | ||
| E M Druffel | 363 | |
| OH Radicals Via Atmospheric 14CO: An Extended Summary | ||
| Andreas Volz, Alfred Tönissen, D H Ehhalt, and Ahmed Khedim | 372 | |
| The Effect of Anthropogenic CO, and 14C Sources on the Distribution of 14C in the Atmosphere | ||
| Ingeborg Levin, K O Münnich, and Wolfgang Weiss | 379 | |
| The Effect of Fossil Fuel and Biogenic CO2 on the 13C and 14C Content of Atmospheric Carbon Dioxide | ||
| W G Mook | 392 | |
| Contemporary 14C Levels and Their Significance to Sedimentary History of Bega Swamp, New South Wales | ||
| H A Polach and Gurdip Singh | 398 | |
| Variations of 14C in Oats Grown from 1957 to 1978 in Quebec | ||
| Louis Barrette, Pierre La Salle, Yvon Martel, and Claude Samson | 410 | |
| Techniques | ||
| Large Volume Liquid Scintillation Counting of Carbon-14 | ||
| Lorenz Eichinger, Werner Rauert, Josef Salvamoser, and Manfred Wolf | 417 | |
| Applications of Resonance Ionization Spectroscopy to Ultralow-Level Counting and Mass Spectroscopy | ||
| S D Kramer, G S Hurst, J P Young, M G Payne, M K Kopp, T A Callcott, E T Arakawa, and D W Beekman | 428 | |
| Some Possibilities for Development of 14C Measurements by Liquid Scintillation Counting | ||
| R Rajamäe and J-M Punning | 435 | |
| A Multi-Counter System for High Precision Carbon-14 Measurements | ||
| Hildegard Schoch, Michael Bruns, K O Münnich, and Marianne Münnich | 442 | |
| Temperature-Dependent Seasonal Variation of the Background in Counters Used for Radiocarbon Dating | ||
| Sören Håkansson | 448 | |
| Further Developments in On-Line Computing and Radiocarbon Dating at the British Museum | ||
| A D Hewson and J A Hall | 455 | |
| Low-Level Gas Proportional Counting in an Underground Laboratory | ||
| H H Loosli, Martin Heimann, and Hans Oeschger | 461 | |
| An Analysis of Shielding Efficiency for 14C Counters | ||
| Reidar Nydal, Steinar Gulliksen, and Knut Lövseth | 470 | |
| Memory Effects in the Production of Benzene for Radiocarbon Dating | ||
| C J Radnell and A B Muller | 479 | |
| Enrichment of 14C and Sample Preparation for Beta and Ion Counting | ||
| P M Grootes, Minze Stuiver, G W Farwell, T P Schaad, and F H Schmidt | 487 | |
| Isotopic Fractionation of NBS Oxalic 14C Standard and Its Effect on Calculated Age of Materials | ||
| Victor A Nehmi | 501 | |
| Low-Level Liquid Scintillation Counting in an Underground Laboratory | ||
| Ulrich Schotterer and Hans Oeschger | 505 | |
| Dating Various Materials | ||
| 14C in Extractives from Wood | ||
| I U Olsson | 515 | |
| A Possible Source of Error in 14C Dates: Volcanic Emanations (Examples from the Monte Amiata District, Provinces of Grosseto and Sienna, Italy) | ||
| François Saupé, Osvaldo Strappa, René Coppens, Bernard Guillet, and Robert Jaegy | 525 | |
| Regional Sources of Volcanic Carbon Dioxide and Their Influence on 14C Content of Present-Day Plant Material | ||
| Michael Bruns, Ingeborg Levin, K O Münnich, and H H Hubberten | 532 | |
| Radiocarbon Dating of Bone Apatite Using Thermal Release of CO2 | ||
| Herbert Haas and J J Banewicz | 537 | |
| Conditions Involved in Dating Terrestrial Shells | ||
| Jacques Evin, Joëlle Marechal, Christiane Pachiaudi, and J J Puissegur | 545 | |
| Radiocarbon Ages of Shells in Holocene Marine Deposits | ||
| Joakim Donner and Högne Jungner | 556 | |
| Book Review | ||
| The First 20 Years of Radiocarbon Dating: An Annotated Bibliography, 1948-68; by Dilette Polach | ||
| J Gordon Ogden, III | 562 | |