Citation:

PANGAEA.911684

Name: Macrofossils of profile GLU-IV
Published: 2020-05-26
License: https://creativecommons.org/licenses/by/4.0/
Keywords: bog-pine; Bronze Age; Co. Mayo; farming history; Holocene; Ireland; Iron Age; Neolithic; pollen analysis; woodland history

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Abstract:

The sampling site was in a small basin-bog (ca. 300 x 100 m). The basin is surrounded by blanket bog that has preserved a pre-peat, extensive stone-wall, regular field system, referred to as Céide Fields.

The research project, part-funded by The Heritage Council (of Ireland), commenced in 1992. The aim was to provide an environmental context for the establishment and use of the prehistoric stone wall field system and also to provide an overall chronological and palaeo-environmental framework.

After establishing the basin contours and the general stratigraphy of the basin using a gouge corer and also taking trial cores for preliminary pollen analysis, the peat core GLU IV (∼5.8 m long; 10 cm diameter) was taken using a Wavin plastic pipe.

The pollen and macrofossil investigations were carried out by Karen Molloy. In all, 77 samples were analysed from 150–574 cm (depths with respect to the bog surface). The pollen profile spans >6800 BC–AD 700, i.e. Boreal to early Medieval period.

LOI and tephra investigations were also carried out. A substantial tephra layer was recorded at 228–232 cm (ca. 600 BC according to the age-depth model). The results of the tephra investigations have yet to be published.

Twenty two conventional 14C dates (Groningen 14C laboratory) were obtained. Twenty of these 14C dates were used to establish the age/depth model that is derived from a fifth order polynomial regression curve obtained using Clam v. 2.2 (details are provided). This is the age/depth model used in the EGQSJ publication (in press, 2019).

Keyword(s):

bog-pine; Bronze Age; Co. Mayo; farming history; Holocene; Ireland; Iron Age; Neolithic; pollen analysis; woodland history

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:

A Holocene pollen profile (GLU IV) from Glenulra, Céide Fields, Co. Mayo, Ireland - link to excel file

Coverage:

Latitude: 54.300790 * Longitude: -9.442340

Minimum DEPTH, sediment/rock: 1.50 m * Maximum DEPTH, sediment/rock: 5.74 m

Event(s):

GLU-IV * Latitude: 54.300790 * Longitude: -9.442340 * Elevation: 88.0 m * Method/Device: Monolith boxes (MONOB)

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	Comment
1	DEPTH, sediment/rock	Depth sed	m	O'Connell, Michael	Geocode
2	Potentilla erecta	Pot.e		O'Connell, Michael	seeds
3	Calluna vulgaris	C. vulgaris		O'Connell, Michael	leaves
4	Juncus sp.	Juncus sp.		O'Connell, Michael	seeds
5	Juncus conglomeratus/effusus	J. conglomeratus/effusus		O'Connell, Michael	seeds
6	Rhynchospora	Rhy		O'Connell, Michael	fruit
7	Carex sp.	Carex sp.		O'Connell, Michael	ahene
8	Sphagnum	Sph		O'Connell, Michael	leaves
9	Sphagnum sect. Acutifolia	Sphagnum sect. Acutifolia		O'Connell, Michael	leaves
10	Sphagnum papillosum	S. papillosum		O'Connell, Michael	leaves
11	Sphagnum palustre	S. palustre		O'Connell, Michael	leaves
12	Aulocomnium palustre	A. palustre		O'Connell, Michael	leaves
13	Hypnum cf. cupressiforme	H. cf. cupressiforme		O'Connell, Michael	leaves
14	Thuidium tamariscinum	T. tamariscinum		O'Connell, Michael	leaves
15	Sand	Sand		O'Connell, Michael
16	Fibres	Fibres		O'Connell, Michael
17	Wood remains	Wood		O'Connell, Michael
18	Pinus, tracheids	Pinus trach		O'Connell, Michael
19	Charcoal	Charcoal		O'Connell, Michael
20	Plant remains	Plant		O'Connell, Michael	charred

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Size:

1425 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Depth sed [m]	2 Pot.e	3 C. vulgaris	4 Juncus sp.	5 J. conglomeratus/effusus	6 Rhy	7 Carex sp.	8 Sph	9 Sphagnum sect. Acutifolia	10 S. papillosum	11 S. palustre	12 A. palustre	13 H. cf. cupressiforme	14 T. tamariscinum	15 Sand	16 Fibres	17 Wood	18 Pinus trach	19 Charcoal	20 Plant
1.50	0	0	0.5	0	0	0	0	#	0	0	0	0	0	0	1	0	0	0.5	0
1.58	0	0	0	0	0	0	0.5	0	3	0	0	0	0	0	0.5	0	0	0	0
1.66	0	0	0	0.5	0	0	0	0	0	0	0	0	0	0	2	0	0	3	0
1.74	0	0	0	0	0	0	0	0	0	0	0	0	0	0	2	0	0	0.5	0
1.82	0	0	0	0.5	0	0	0	0	0	0	0	0	0	0	2	0	0	2	0
1.90	0	0	0	0	0	0	0	0	0	0	0	0	0	0	2	0	0	1	0
1.98	0	0	0	0	0	0	0	0	0.5	0	0	0	0	0	3	0	0	1	0
2.06	0	0	0	0	0	0	0	0	0.5	0	0	0	0	0.5	3	0	0	2	0
2.14	0	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0	0	1	0
2.22	0	0	0	0	0	0	0	0	0	0	0	0	0	0	2	0	0	2	0.5
2.30	0	0	0.5	0	0	0	0	0	2	0.5	0	0	0	0	3	0	0	2	0
2.38	0	0	0	0	0	0	0	0	0	0	0	0	0	0.5	3	0	0	1	0
2.46	0	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0	0	1	0
2.50	0	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0	0	1	0
2.54	0	0	0	0	0	0	0	0	0	0	0	0	0	0	2	0	0	0.5	0
2.58	0	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0	0	1	0
2.62	0	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0	0	0.5	0
2.70	0	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0	0	0	0
2.78	0	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0	0	0.5	0
2.82	0	0	0	0	0	0	0	0.5	0	0	0	0	0	0	3	0	0	0.5	0
2.86	0	0	0	0	0	0	0	0.5	0	0	0	0	0	0	3	0	0	0	0
2.90	0	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0	0	0	0
2.94	0	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0	0	2	0
2.97	0	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0	0	0.5	0
3.02	0	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0	0	0	0
3.10	0	0	0	0	0	0	0	0	0.5	0	0	0.5	0	0	3	2	0	1	0
3.18	0	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0	0	0.5	0
3.22	0	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0	0	0.5	0
3.26	0	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0	0	0.5	0
3.30	0	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0	0	0.5	0
3.34	0	0	0	0	0	0	0	0	0	0	0	0	0	0	2	0	0	0	0
3.38	0	0	0	0	0	0	0	0	0	0	0	0	0	0	2	0	0	0	0
3.42	0	0	0	0	0	0	0	0	0	0	0	0	0	0	2	0	0	0.5	0
3.46	0	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0	0	0	0
3.50	0	0	0	0	0	0	0	0	0	0	0	0	0	0	2	0	0	0	0
3.54	0	0.5	0	0	0	0	0	0	0	0	0	0	0	0	2	0	0	0	0
3.58	0	3	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0
3.66	0	0	0	0	0.5	0	0	0	0	0	0	0	0	0	3	0	0	0	0
3.74	0	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0	0	0	0
3.82	0	0	0	0	0	0	0	3	0	0	0	0	0	0	2	0	0	0	0
3.90	0	1	0	0	0	0	0	2	0	0	0	0	0	0	2	0	0	1	0
3.98	0	1	0	0	0	0	0	3	0	0	0.5	0	0	0	2	0	0	0	0
4.02	0	1	0	0	0	0	0	2	0	0	1	0	0	0	2	0	0	0	0
4.06	0	2	0	0	0	0	0	1	0	0	0	0	0	0	3	0	0	0	0
4.10	0	1	0	0	0	0	1	0	0	0	0	0.5	0	0	2	0	0	0.5	0
4.14	0	0	0	0	0	0	0	0	0	0	0	0	0	0	2	0	0	1	0
4.18	0	0	0	0	0	0	0	0	0	0	0	0	0	0	2	0	0	0.5	0
4.22	0	0	0	0	0	0	0	0	0	0	0	0	0	0	2	0	0	0	0
4.26	0	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0	0	0.5	0
4.30	0	0	0	0	0	0	0	0	0	0	0	0	0	0	2	1	0	0.5	0
4.34	0	0	0	0	0	0	0	0	0	0	0	0	0	0	2	0	0	0.5	0
4.42	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	1	0
4.50	0	0	0	0	1	0	0	0.5	0	1	0	0	0	0	2	0	0	0	0
4.54	0	0	0	0	1	0	0	0	0	2	0	0	0	0	2	0	0	0.5	0
4.58	0	0	0	0	0	0	0	0	0	3	0	0	0	0	1	0	0	0	0
4.62	0	0	0	2	0	0	0	0	0	2	0	0	0	0	0	0	0	0	0
4.66	0	0	0	1	0	0	0	0	0	2	0	0	0	0	2	0	0	0	0
4.70	0	0	0	0	0	0	0	0	0	2	0	0	0	0	3	0	0	0	0
4.74	0	0	0	0	0	0	0	3	0	3	0	0	0	0	0	0	0	0	0
4.78	0	0	0	0	0	0	0	0	0	3	0	0	0	0	0	0	0	0	0
4.82	1	0	0	0	0	0	0.5	0	0	3	0	0	0	0	0	0	0	0	0
4.86	0	0	0	1	0	0.5	0.5	0	0	3	0	0	0	0	0	0	0	0	0
4.90	0	0	0	2	0	0	0.5	0	0	2	0	0	0	0	2	0	0	0	0
4.94	0	0	0	2	1	0	0.5	0	0	0	0	0	0	0	2	0	0	0	0
4.98	0	0	0	2	1	0	0.5	0	0	0	0	0	0	0	3	0	1	0	0
5.02	0	0	0	2	0	0	0.5	0	0	0	0	0	1	0	0	0	0.5	0	0
5.10	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	2	0
5.18	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	2	0
5.26	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0.5	0
5.34	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	1	0
5.42	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0
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