Rapid human response to Late Glacial climate change: a reply to Housley et al. (2000)

Antiquity ◽  
2000 ◽  
Vol 74 (284) ◽  
pp. 427-428 ◽  
Author(s):  
S. P. E. Blockley ◽  
R. E. Donahue ◽  
A. M. Pollard
Keyword(s):  
Climate Change ◽  
Late Glacial ◽  
Calibration Data ◽  
Human Response ◽  
Weak Correlation ◽  
Two Stage ◽  
Calibration Curves ◽  
Colonization Model ◽  
Glacial Climate ◽  
Radiocarbon Calibration

In their reply to our recent paper (Blockley et al.2000), Housley et ~ l(2.0 00) make four substantialpoints. Firstly, they assert that our critique oftheir two-stage re-colonization model rests solelyupon radiocarbon calibration. Secondly, and consequently,they point to problems with Late Glacialcalibration curves. Thirdly, they argue thatradiocarbon calibration should be advanced onlyfor sound archaeological reasons. Finally, theystate that our approach is environmentally deterministicand that we have demonstrated onlya weak correlation between human demographicchange and rapid climatic amelioration.Housley et al. (2000) argue against the use ofLate Glacial calibration curves, and in particularstate that 'it is because the calibration data are soheavily smoothed that Blockley et al. dispute ournotion of a northward movement of people'

scholarly journals Late Glacial rapid climate change and human response in the Westernmost Mediterranean (Iberia and Morocco)

PLoS ONE ◽  
2019 ◽  
Vol 14 (12) ◽  
pp. e0225049 ◽  
Author(s):  
Gerd-Christian Weniger ◽  
María de Andrés-Herrero ◽  
Viviane Bolin ◽  
Martin Kehl ◽  
Taylor Otto ◽  
...  
Keyword(s):  
Climate Change ◽  
Late Glacial ◽  
Human Response ◽  
Rapid Climate Change

scholarly journals Selection and Treatment of Data for Radiocarbon Calibration: An Update to the International Calibration (IntCal) Criteria

Radiocarbon ◽  
2013 ◽  
Vol 55 (4) ◽  
pp. 1923-1945 ◽  
Author(s):  
Paula J Reimer ◽  
Edouard Bard ◽  
Alex Bayliss ◽  
J Warren Beck ◽  
Paul G Blackwell ◽  
...  
Keyword(s):  
Calibration Curve ◽  
Quality Data ◽  
Calibration Data ◽  
High Quality ◽  
High Quality Data ◽  
Surface Ocean ◽  
Basic Assumptions ◽  
Calibration Curves ◽  
Curve Model ◽  
Radiocarbon Calibration

High-quality data from appropriate archives are needed for the continuing improvement of radiocarbon calibration curves. We discuss here the basic assumptions behind 14C dating that necessitate calibration and the relative strengths and weaknesses of archives from which calibration data are obtained. We also highlight the procedures, problems, and uncertainties involved in determining atmospheric and surface ocean 14C/12C in these archives, including a discussion of the various methods used to derive an independent absolute timescale and uncertainty. The types of data required for the current IntCal database and calibration curve model are tabulated with examples.

scholarly journals A Bayesian Approach to the Estimation of Radiocarbon Calibration Curves: The IntCal09 Methodology

Radiocarbon ◽  
2009 ◽  
Vol 51 (4) ◽  
pp. 1151-1164 ◽  
Author(s):  
T J Heaton ◽  
P G Blackwell ◽  
C E Buck
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Sampling ◽  
Calibration Data ◽  
New Approach ◽  
Curve Estimation ◽  
Calendar Date ◽  
The Past ◽  
Calibration Curves ◽  
Varve Counting ◽  
Radiocarbon Calibration

This article presents a new approach to the construction of radiocarbon calibration curves. The Bayesian methodology was developed specifically to facilitate construction of the 2009 updates to the internationally agreed 14C calibration curves known as IntCal09 and Marine09. The curve estimation approach taken uses Markov chain Monte Carlo sampling, specifically a Metropolis-within-Gibbs sampler, which offers improved flexibility and reliability over the approaches used in the past. In particular, the method allows accurate modeling of calibration data with 14C determinations that arise from material deposited over several consecutive calendar years and that exhibit complex uncertainty structures on their calendar date estimates (arising from methods such as wiggle-matching and varve counting).

scholarly journals Calibration of the 14C time scale: towards the complete dating range

2002 ◽  
Vol 81 (1) ◽  
pp. 85-96 ◽  
Author(s):  
J. van der Plicht
Keyword(s):  
Calibration Curve ◽  
Time Scale ◽  
Late Glacial ◽  
Calibration Method ◽  
Laminated Sediments ◽  
Calibration Curves ◽  
Radiocarbon Calibration

AbstractRadiocarbon calibration based on dendro-chronology and U-series dated corals yield a calibration curve (INTCAL98) well into the Late Glacial, back to ca. 15,600 calendar years ago. Beyond this limit, various calibration curves are produced, mainly based on laminated sediments and various carbonates dated by U-series isotopes. Such calibration curves now cover the complete 14C dating range of about 45,000 years, but are not consistent with each other. Each calibration method (other than dendro-chronology) has its own assumptions and pitfalls. Thus far, the calibration curve obtained from Lake Suigetsu laminated sediments is the only terrestrial (atmospheric) one.

scholarly journals The Groningen Radiocarbon Calibration Program

Radiocarbon ◽  
1993 ◽  
Vol 35 (1) ◽  
pp. 231-237 ◽  
Author(s):  
Johannes van der Plicht
Keyword(s):  
Tree Rings ◽  
North American ◽  
Calibration Data ◽  
Calibration Curves ◽  
De Vries ◽  
Calibration Program ◽  
Radiocarbon Calibration

Variations in atmospheric 14C content complicate the conversion of conventional 14C ages BP (i.e., years before AD 1950) into real calendar ages (AD/BC) (de Vries 1958; Willis, Tauber & Münnich 1960). These variations are indirectly observed in tree rings from European and North American wood. In recent decades, measurements made on dendrochronologically dated wood have resulted in the generally accepted Stuiver and Pearson calibration curves. These curves, together with other calibration data, were published in the first Radiocarbon Calibration Issue (Stuiver & Kra 1986), and are extended in the present Calibration Issue (Stuiver, Long & Kra 1993).

scholarly journals Radiocarbon Calibration Data for the 6th to the 8th Millennia BC

Radiocarbon ◽  
1986 ◽  
Vol 28 (2B) ◽  
pp. 954-960 ◽  
Author(s):  
Bernd Kromer ◽  
Monika Rhein ◽  
Michael Bruns ◽  
Hildegard Schoch-Fischer ◽  
Karl Otto Münnich ◽  
...  
Keyword(s):  
Tree Ring ◽  
Data Sets ◽  
Calibration Data ◽  
Calibration Curves ◽  
Oak Tree ◽  
Existing Data ◽  
Radiocarbon Calibration

14C calibration curves derived from South German oak tree-ring series are presented. They cover the interval between 4400 and 7200 BC complementing existing data sets and extending them to older periods. The atmospheric 14C level before 6200 BC no longer follows the long-term sinusoidal trend fitted to the bristlecone data. This observation is supported by a tentative match of the Main 9 series.

scholarly journals Shcal04 Southern Hemisphere Calibration, 0–11.0 Cal Kyr BP

Radiocarbon ◽  
2004 ◽  
Vol 46 (3) ◽  
pp. 1087-1092 ◽  
Author(s):  
F G McCormac ◽  
A G Hogg ◽  
P G Blackwell ◽  
C E Buck ◽  
T F G Higham ◽  
...  
Keyword(s):  
Recent Work ◽  
Southern Hemisphere ◽  
Calibration Data ◽  
Structural Form ◽  
Data Set ◽  
Calibration Curves ◽  
Radiocarbon Calibration

Recent measurements on dendrochronologically-dated wood from the Southern Hemisphere have shown that there are differences between the structural form of the radiocarbon calibration curves from each hemisphere. Thus, it is desirable, when possible, to use calibration data obtained from secure dendrochronologically-dated wood from the corresponding hemisphere. In this paper, we outline the recent work and point the reader to the internationally recommended data set that should be used for future calibration of Southern Hemisphere 14C dates.

Timing of the late-glacial climate reversal in the Southern Hemisphere using high-resolution radiocarbon chronology for Kaipo Bog, New Zealand

2006 ◽  
Vol 65 (02) ◽  
pp. 340-345 ◽  
Author(s):  
Irka Hajdas ◽  
David J. Lowe ◽  
Rewi M. Newnham ◽  
Georges Bonani
Keyword(s):  
Climate Change ◽  
New Zealand ◽  
High Resolution ◽  
Southern Hemisphere ◽  
Younger Dryas ◽  
Late Glacial ◽  
Bulk Sediment ◽  
Radiocarbon Chronology ◽  
The Antarctic ◽  
Glacial Climate

AbstractThe pattern of climate change in the Southern Hemisphere during the Younger Dryas (YD) chronozone provides essential constraint on mechanisms of abrupt climate change only if accurate, high-precision chronologies are obtained. A climate reversal reported previously at Kaipo bog, New Zealand, had been dated between 13,600 and 12,600 cal yr B.P. and appeared to asynchronously overlap the YD chron, but the chronology, based on conventionally radiocarbon-dated bulk sediment samples, left the precise timing questionable. We report a new high-resolution AMS 14C chronology for the Kaipo record that confirms the original chronology and provides further evidence for a mid-latitude Southern Ocean cooling event dated between 13,800 and 12,400 cal yr B.P. (2σ range), roughly equivalent to the Antarctic Cold Reversal.

Sign in / Sign up

Export Citation Format

Share Document