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It opens onto the edge of a collapsed doline of m2. More than ten millennia have been recorded discontinuously in the various sedimentary complexes, with occupations dating from the end of the Gravettian to the Middle Magdalenian. BP was carried out in the Oxford laboratory. According to the chronological frameworks now available for south-western France, it seems to refer to the Badegoulian technical traditions. At Le Petit Cloup Barrat, Badegoulian occupations have been identified since inside the cave, following the discovery of lithic and osseous remains respectively raclettes and antler flakes. They were discovered in layer c8a1. BP , technical waste characteristic of the Badegoulian.
This paper proposes a review of the use of lichenometry in Iceland since , using different techniques to solve the chronology of geomorphic processes. Based on the results of over 35 published studies, lichenometry has been widely applied in Iceland, proposing numerical ages absolute dating and relative ages relative dating of different surfaces. Increasing awareness of methodological limitations of the technique, together with more sophisticated data processing, has led some authors to claim that lichenometric 'ages' are robust and reliable. However, the different measurement techniques used make it difficult to compare regions or studies in the same area. These problems are exacerbated in Iceland by rapid environmental changes across short distances and more generally by lichen species mis-identification in the field. Moreover, the reliability of lichenometric dates is discredited by their lack of correspondence with tephrochronologic data, whatever the lichenometric method used.