Permineralization process promotes preservation of Holocene macrofossil charcoal in soils
Version of Record online: 26 JUL 2011
Copyright © 2011 John Wiley & Sons, Ltd.
Journal of Quaternary Science
Volume 26, Issue 6, pages 571–575, August 2011
How to Cite
De Lafontaine, G., Couillard, P.-L. and Payette, S. (2011), Permineralization process promotes preservation of Holocene macrofossil charcoal in soils. J. Quaternary Sci., 26: 571–575. doi: 10.1002/jqs.1529
- Issue online: 10 AUG 2011
- Version of Record online: 26 JUL 2011
- Manuscript Accepted: 19 JUN 2011
- Manuscript Revised: 16 JUN 2011
- Manuscript Received: 31 MAR 2011
- 14C AMS dating;
- charcoal analysis;
The use of macrofossil soil charcoal as a palaeoecological tool to reconstruct past vegetation, climate or fire history has gained much interest in recent years. Yet little is known about taphonomy of charcoal in soils. Here we assessed the putative loss of palaeoecological information due to charcoal fragmentation after burial. We found no significant loss of charcoal mass with time. Instead, we found a significant positive relationship between the mass of charcoal particles and their age. Permineralization of charcoal particles older than ca. 5200 a explained the increased charcoal mass with time in mineral soils. The permineralization process increased the density of charcoal particles (resulting in a twofold particles mass increase) and thus offers a protection against subsequent degradation. Our results suggest high stability of palaeoecological information from charcoal macrofossils buried in mineral soils at least over the Holocene timescale. Copyright © 2011 John Wiley & Sons, Ltd.