Pollen profile, BHY V: overlying stone-wall field system in Behy townland (E of Behy court tomb)
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| Natura: | Dataset Open Access |
| Lingua: | en |
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PANGAEA
2020
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| _version_ | 1867171292501770240 |
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| author | Molloy, Karen O'Connell, Michael |
| author_facet | Molloy, Karen O'Connell, Michael |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | 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. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_911687 |
| institution | PANGAEA |
| language | en |
| publishDate | 2020 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Pollen profile, BHY V: overlying stone-wall field system in Behy townland (E of Behy court tomb) Molloy, Karen O'Connell, Michael -; Alnus; Anthemis-type; Apiaceae; Artemisia; Athyrium filix-femina; Betula; BHY_V; Bidens-type; bog-pine; Bronze Age; Calluna; Cerastium-type; Cereal-type; Charcoal; Chenopodiaceae; Co. Mayo; Corylus; Cyperaceae; DEPTH, sediment/rock; Ericaceae; Erica tetralix; Erica tetralix-type; Fabaceae; Fagus; farming history; Fern spores, monolete; Filipendula; Fraxinus; Gelasinospora; Hedera; Holocene; Hymenophyllum wilsonii; Ilex; Ireland; Iron Age; Jasione; Liguliflorae; Lonicera; Lotus-type; Lycopodium (counted); Melampyrum; MONOB; Monolith boxes; Myrica; Narthecium; Neolithic; Palynomorph, unknown; Pedicularis; Pinus; Plantago lanceolata; Poaceae; Pollen; Pollen, corroded; pollen analysis; Polygala; Polypodium vulgare; Potamogeton; Potentilla-type; Pteridium; Quercus; Ranunculus-type; Rhinanthus-type; Rosaceae; Rumex-type; Salix; Sample volume; Sorbus; Sphagnum; Succisa; Taxus; Tilia; Trifolium repens; Ulmus; Urtica; Vicia-type; woodland history 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. |
| title | Pollen profile, BHY V: overlying stone-wall field system in Behy townland (E of Behy court tomb) |
| topic | -; Alnus; Anthemis-type; Apiaceae; Artemisia; Athyrium filix-femina; Betula; BHY_V; Bidens-type; bog-pine; Bronze Age; Calluna; Cerastium-type; Cereal-type; Charcoal; Chenopodiaceae; Co. Mayo; Corylus; Cyperaceae; DEPTH, sediment/rock; Ericaceae; Erica tetralix; Erica tetralix-type; Fabaceae; Fagus; farming history; Fern spores, monolete; Filipendula; Fraxinus; Gelasinospora; Hedera; Holocene; Hymenophyllum wilsonii; Ilex; Ireland; Iron Age; Jasione; Liguliflorae; Lonicera; Lotus-type; Lycopodium (counted); Melampyrum; MONOB; Monolith boxes; Myrica; Narthecium; Neolithic; Palynomorph, unknown; Pedicularis; Pinus; Plantago lanceolata; Poaceae; Pollen; Pollen, corroded; pollen analysis; Polygala; Polypodium vulgare; Potamogeton; Potentilla-type; Pteridium; Quercus; Ranunculus-type; Rhinanthus-type; Rosaceae; Rumex-type; Salix; Sample volume; Sorbus; Sphagnum; Succisa; Taxus; Tilia; Trifolium repens; Ulmus; Urtica; Vicia-type; woodland history |
| url | https://doi.org/10.1594/PANGAEA.911687 |