Palaeoecological Investigation of Buried Peats at the Proposed Cardiff International Railfreight Terminal Wentlooge Cardiff
| Autor: | Walker, Michael J C, Druce, Denise, Caseldine, Astrid E, Cameron, Nigel G |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| DOI: | 10.5284/1069509 |
| Popis: | Archaeology in the Severn Estuary, 13, 107-122 Palaeoecological evidence (pollen, plant macrofossils and diatoms) is described from two peat sequences buried beneath alluvial silts and clays on the Gwent Levels to the southeast of Trowbridge, Cardiff. Radiocarbon dating shows that the peats are of late Holocene age. A negative sea-level tendency, dated to 3750 � 50 14C yrs BP (3900-4350 cal BP) marks the transition from tidal saltmarsh to coastal mire, after which an extensive alder carr developed in the near-shore area, while to landward were areas of mixed oak woodland. Alder carr was succeeded by reedswamp from 3400 � 70 14C yrs BP (4240-3820 cat BP), while tidal saltmarsh was re-established in the area early in the third millennium BP (2600-2800 14C yrs BP; 3050-2500 cat BP). There are indications throughout this period of extensive burning, although in the absence of unequivocal evidence in the pollen and plant macrofossil records for anthropogenic activity in the vicinity, it is possible that these could have been natural ( eg from lightning strikes) rather than being human-induced. |
| Databáze: | OpenAIRE |
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