Molloy, Karen; O'Connell, Michael (2020): Macrofossils of profile BHY_V [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.917992, In: O'Connell, Michael; Molloy, Karen; Jennings, Eneda (2020): Pollen analytical and bog-pine investigations relating to Céide Fields and Garrynagran, Co. Mayo, Ireland [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.911684
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Abstract:
The sampling site lies 25 m east of chamber of Behy court tomb where a small patch of intact uncut peat remained.
A monolith 44 cm long was removed. Total depth of peat at sampling point (TDP; adjust for shrinkage) 180 cm.
The pollen spectra (16 in all) start at 3 cm (i.e. 3–4 cm: mineral soil immediately beneath the peat) to -30 cm, i.e. 30 to 29 cm ABOVE the peat/mineral soil interface. Peat near the base (-7 to -19 cm) was charcoal-rich.
The age/depth model gives the following chronology:[≥2600, pre-bog development]; pollen profile: 2520-210 BC, i.e. late Neolithic/Chalcolithic to mid-Iron Age.
LOI and tephra investigations were also carried out. A distinct tephra layer at -28 cm (ca. 280 BC according to age/depth model). Tephra geochemically characterised. The results of the tephra investigations have yet to be published.
The age/depth curve for BHY V is a smooth spline curve (smooth factor = 0.2) that is based on the five available 14C dates and a surface age estimate (peat thickness: 180 cm, i.e. 50 cm added to compensate for peat shrinkage. Surface peat is regarded as dating to AD 1950). This is the age/depth model used in the EGQSJ publication (in press, 12/2019).
A 'pine flush' is not recorded but ca. 2% Pinus in mineral soil and basal peat samples; these samples dominated by Betula; little Calluna. Very sharp Betula to Poaceae switch near base (cf. hiatus).
These investigations relating to Céide Fields were carried out in PRU, NUIG, part-funded by The Heritage Council (of Ireland). The aim was to provide an environmental context for the establishment and use of the prehistoric stone-wall field system, and an overall chronological framework and an environmental history of the area.
Keyword(s):
Related to:
Molloy, Karen; O'Connell, Michael (1995): Palaeoecological investigations towards the reconstruction of environment and land-use changes during prehistory at Céide Fields, western Ireland. Probleme der Küstenforschung im südlichen Nordseegebiet, 23, 187-225
O'Connell, Michael; Molloy, Karen (2001): Farming and woodland dynamics in Ireland during the Neolithic. Biology and Environment-Proceedings of the Royal Irish Academy, 101, 99-128
O'Connell, Michael; Molloy, Karen; Jennings, Eneda (2020): Long-term human impact and environmental change in mid-western Ireland, with particular reference to Céide Fields - an overview. E&G - Quaternary Science Journal, 69(1), 1-32, https://doi.org/10.5194/egqsj-69-1-2020
Other version:
Coverage:
Latitude: 54.304820 * Longitude: -9.462040
Date/Time Start: 1992-01-18T00:00:00 * Date/Time End: 1992-01-18T00:00:00
Minimum DEPTH, sediment/rock: -0.30 m * Maximum DEPTH, sediment/rock: 0.03 m
Event(s):
Comment:
Macroremains recorded in sievings from pollen samples. Abundance of macro-remains as follows: 3, abundant; 2, frequent; 1, occasional; 0.5, rare, i.e. +
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | O'Connell, Michael | Geocode | |
| 2 | Juncus conglomeratus/effusus | J. conglomeratus/effusus | O'Connell, Michael | seeds | ||
| 3 | Macrocharcoal | MacChar | O'Connell, Michael | |||
| 4 | Sand | Sand | O'Connell, Michael | |||
| 5 | Fibres | Fibres | O'Connell, Michael |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
64 data points