The program is written in C and uses Bayesian statistics and Gibbs sampling for the calculations.The program is very easy to use, both for simple calibration and complex site analysis, and will produce graphical output from virtually any printer.This is calculated through careful measurement of the residual activity (per gram C) remaining in a sample whose age is Unknown, compared with the activity present in Modern and Background samples. Thus 1950, is year 0 BP by convention in radiocarbon dating and is deemed to be the 'present'.You can get an idea of the relationship between C14 and age at the Carbon Dating calculator page. 1950 was chosen for no particular reason other than to honour the publication of the first radiocarbon dates calculated in December 1949 (Taylor, 19).During the Last Glacial Maximum, continental ice sheets isolated Beringia (northeast Siberia and northwest North America) from unglaciated North America.
The first Director, Teddy Hall, had by then just completed his DPhil in Physics.
This paper presents a complete study of the parietal ensemble, including descriptions of the graphic motifs and other anthropic evidence that has been documented.
The number of figures identified in the only panel documented in previous studies has been increased considerably, while several previously unpublished panels in other parts of the cave are described.
The theoretical framework behind these is discussed and some model calculations demonstrated.
Significant changes have also been made to the sampling algorithms used which improve the convergence of the Bayesian analysis.