Use this URL to cite or link to this record in EThOS:
Title: Data for late glacial and post glacial history in South Wales : a pollen analytical study of three peat bogs, Waen Ddu Cwmllynfell and Bryn House, Swansea
Author: Trotman, D. M.
Awarding Body: University College of Swansea
Current Institution: Swansea University
Date of Award: 1963
Availability of Full Text:
Access from EThOS:
Peat deposits from three sites in south wales are examined and subjected to pollen analysis. The results show them to represent a period of over 12,000 years of peat accumulation and throw some light upon conditions in late glacial and post glacial times in south wales. The late glacial evidence points to severe climatic conditions in pollen zone 1 within the highlands of south wales but fluvial activity is present within the coastal lowlands. Favourable conditions to the north east of this escarpment enabled the early deposition of mud and clays with some establishment of vegetation from the Bolling oscillation. Highland corrie glaciation is suspected at the time. Within the warm Allerod period tree parkland spread across the country and persisted although restricted during zone 3.Periglacial activity is general and it is thought unlikely that corrie glaciers developed at this time. The vegetation colonization through post glacial times provides interesting examples of westerly influence, plant migration and the importance of ecological factors. This is well shown by comparing the vegetation succession and plant dominance at Waen Ddu and Cwmllynfell. The richer vegetation soils and more favourable easterly siting od Waen Ddu also proved more attractive to prehistoric man. Here vegetation interference is more apparent, and took place earlier than at Cwmllynfell. several different clearance methods and phases of activity are noted at the two sites and these have been tentatively correlated with archaeological periods.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available