The environmental context and function of burnt-mounds: palaeoenvironmental studies of Irish Fulacht Fiadh


Brown, Antony G., Davis, Steven R. and Hatton, Jackie et al. (2016) The environmental context and function of burnt-mounds: palaeoenvironmental studies of Irish Fulacht Fiadh Proceedings of the Prehistoric Society, 82, pp. 259-290. (doi:10.1017/ppr.2016.7).

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Description/Abstract

Burnt mounds or fulachta fiadh as they are known in Ireland are probably the most common prehistoric site type in Ireland and Britain. Typically Middle to late Bronze in age (although both earlier and later examples are known), they are artefact-poor and rarely associated with settlements. They generally consist of a low mound of stones often showing signs of fire-exposure arranged by, or around, a pit or trough which may be unlined or lined by wood or stone. The function of these sites has been much debated with the most commonly cited uses being for cooking, as steam baths or saunas, for brewing or textile processing. A number of major infrastructural development schemes in Ireland in the years 2002-2007 revealed remarkable numbers of these mounds often associated with wood-lined troughs, many of which were remarkably well preserved. This afforded an opportunity to investigate these sites as landscape features using environmental techniques - specifically plant macrofossils, pollen, beetles and multi-element analyses. This paper presents the results from nine sites from Ireland and compares them with burnt mound sites in Britain. The fulachta fiadh which are generally in clusters are all groundwater-fed by springs along floodplains and at the bases of slopes. The sites are associated with the clearance of wet woodland for fuel and have predominantly ‘natural’ beetle assemblages found in wet woodlands. At 7 out of the 9 sites evidence of nearby agricultural (arable) activity was revealed and all sites revealed, some but not high, levels of grazing. At one site (Cahiracon) both pollen and coleoptera suggested that oak galls or leaves were brought onto site, at another (Coonagh West) both pollen and macrofossils suggested that alder was being used on site and at a third (Jigginstown) the pollen of two dye plants (purging flax and knapweed) was recovered. Multi-element analysis at two sites (Inchagreenoge and Coonagh West) revealed elevated heavy metal concentrations suggesting that non-local soil or ash had been used in the trough. This evidence, taken together with the shallow depth of all the sites, their self-filling nature, attempts to filter incoming water, the occasional occurrence of flat stones and flimsy stake structures at one site (Inchagreenoge), suggests that the most likely function for these sites is textile processing involving both cleaning and/or dying of wool and/or natural plant fibres. This can be regarded as a functionally related activity to hide cleaning and tanning for which there is evidence from one site (Ballygawley) as well as from other Irish burnt mound sites. Whilst further research is clearly needed to confirm if fulachta fiadh are part of the ‘textile revolution’ we should also recognise their important role in the rapid deforestation of the wetter parts of primary woodland and the expansion of agriculture into marginal areas during the Bronze Age.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1017/ppr.2016.7
Organisations: Palaeoenvironment Laboratory (PLUS)
ePrint ID: 405798
Date :
Date Event
19 May 2016Accepted/In Press
17 August 2016e-pub ahead of print
2016Published
Date Deposited: 18 Feb 2017 00:21
Last Modified: 16 Apr 2017 17:13
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/405798

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