Mesolithic hearth-pits: fact or fantasy? A reassessment based on the evidence from the sites of Doel and Verrebroek (Belgium)

In this paper we contest the anthropogenic character of small and shallow charcoal-filled pits which occur in large numbers on Mesolithic sites in the coversand area of the northwest European plain. Despite uncertainties about their exact function, they have so far been generally interpreted as hearth-pits. Following this assumption, these features have been systematically used for dating Mesolithic sites and reconstructing Mesolithic settlement systems. However, chronological inconsistencies as well as the absence of in situ burning evidence call into question this anthropogenic interpretation. Based on anthracological, chronological and pedological evidence from two sites in NW Belgium (Verrebroek and Doel), it is argued that most of these features may be of natural origin. In particular there is good resemblance in morphology, distribution and content with remains of abandoned and burnt ant mounds. The paper ends with highlighting the consequences of this new interpretation, while suggesting new lines of investigation for future Mesolithic research.