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150325s1982 xx |||||o 00| ||eng c |
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|a (DE-627)JST070545626
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|a (JST)20494397
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Pilcher, J. R.
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Late-Glacial and Post-Glacial Vegetational History of the Meenadoan Nature Reserve, County Tyrone
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| 264 |
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|c 1982
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| 336 |
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|a Text
|b txt
|2 rdacontent
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| 337 |
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|a Computermedien
|b c
|2 rdamedia
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| 338 |
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|a Online-Ressource
|b cr
|2 rdacarrier
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|a Detailed pollen analysis and radiocarbon dating have been carried out on the mire deposit in the nature reserve at Meenadoan Townland in County Tyrone. The analysis commenced with the first pollen-bearing deposits dating from c. 12500 b.p. (radiocarbon years) which show an open grass-dominated vegetation. This is followed by a herb-dominated phase coincident with inorganic deposition in the lake, marking the cold period of the Nahanagan Stadial. The end of the Late-glacial is marked by a particularly clear succession from a grass-Rumex phase, through a brief Empetrum phase to a phase dominated by Juniperus with some Filipendula. This leads gradually into the usual early Post-glacial Betula maximum. The detail in which these changes can be seen may be due to a delay in the expansion of birch at the altitude of this site. The Post-glacial changes now follow the well-established pattern with minor differences reflecting the altitude and westerly situation of the site. The effects of man are first seen at c. 4780 b.p. and become progressively more important from that time on. The present bog surface is still active and is now one of the very few undisturbed raised bogs anywhere in Ireland.
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| 650 |
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4 |
|a Biological sciences
|x Biology
|x Botany
|x Palynology
|x Pollen
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| 650 |
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4 |
|a Physical sciences
|x Earth sciences
|x Geology
|x Absolute dating
|x Radiometric dating
|x Radiocarbon dating
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| 650 |
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4 |
|a Applied sciences
|x Materials science
|x Materials
|x Carbonaceous materials
|x Peat
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| 650 |
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4 |
|a Physical sciences
|x Earth sciences
|x Geography
|x Land
|x Rangelands
|x Wetlands
|x Bogs
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| 650 |
|
4 |
|a Biological sciences
|x Biology
|x Botany
|x Dendrology
|x Trees
|x Evergreen trees
|x Conifers
|x Pine trees
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| 650 |
|
4 |
|a Biological sciences
|x Biology
|x Botany
|x Plants
|x Grasses
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| 650 |
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4 |
|a Biological sciences
|x Ecology
|x Population ecology
|x Synecology
|x Biocenosis
|x Plant communities
|x Woodlands
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| 650 |
|
4 |
|a Physical sciences
|x Earth sciences
|x Geography
|x Geomorphology
|x Topography
|x Highlands
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| 650 |
|
4 |
|a Physical sciences
|x Metrology
|x Altimetry
|x Altitude
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| 650 |
|
4 |
|a Physical sciences
|x Earth sciences
|x Geography
|x Geomorphology
|x Topography
|x Lowlands
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| 655 |
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4 |
|a research-article
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| 700 |
1 |
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|a Larmour, R.
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Proceedings of the Royal Irish Academy. Section B: Biological, Geological, and Chemical Science
|d Royal Irish Academy, 1902
|g 82B(1982) vom: Jan., Seite 277-295
|w (DE-627)611725223
|w (DE-600)2520555-9
|x 00358983
|7 nnns
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| 773 |
1 |
8 |
|g volume:82B
|g year:1982
|g month:01
|g pages:277-295
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| 856 |
4 |
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|u https://www.jstor.org/stable/20494397
|3 Volltext
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|d 82B
|j 1982
|c 01
|h 277-295
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