Data copyright © Dr Sanjeev Gupta unless otherwise stated
This work is licensed under the ADS Terms of Use and Access.
Dr
Sanjeev
Gupta
Department of Earth Science and Engineering
Imperial College London
RSM Building
Prince Consort Road
London
SW7 2BP
UK
Tel: 020 75946527
The Solent and West Sussex rivers contain some of the world's most important early Palaeolithic archaeology. The dense concentration of palaeolithic artefacts within sediments of the Solent and its tributaries indicate that south coast river systems were corridors for human migration and favoured habitats for early (including pre-Anglian) human populations. The earliest hominid fossils from the British Isles were recovered from a Pleistocene raised beach at Boxgrove, West Sussex. The platform on which these deposits rest extends into the English Channel and would have been exposed during phases of low sealevel to form a continuous land connection with the European mainland. During cold stages, it is likely that this newly exposed land would have been colonised periodically by rich grasslands supporting a diverse mammalian megafauna including humans. The exposed English Channel shelf would have been a favoured route to the north and the river valleys, preferred occupation sites. As well as potentially preserving rich archaeological information, shelf valley systems also record the interaction of sea-level fluctuations and climatically-controlled variation in sediment input from river catchments. Such factors provide the environmental and palaeogeographical context needed to establish models of early human dispersal, demography, adaptation and ecology
The aim of the project was to reconstruct the palaeo-geomorphology of submerged and buried landscapes of the palaeo-Arun river valley on the northern English Channel shelf using regional high resolution marine surveying, seismic sequence stratigraphy and sedimentological analysis. The specific objectives were to:
The area of investigation focussed on the inner shelf off the south coast of Sussex, south of the town of Littlehampton, in the eastern English Channel.The study area encompasses the entire offshore extent of the Arun Palaeovalley system from the coastline to the deeper submarine valley known as the Northern Palaeovalley as depicted on BGS sheet 50N 02W (Wight - Sea Bed Sediments & Quaternary)
For clarity and to reflect the breadth of technical skills required to complete the work, the programme was split into two distinct sub-projects:
The results of the two sub-projects were integrated throughout the course of the programme.
The digital archive currently contains the final integrated project report:
The report is split into six chapters:
Chapter 1 provides the rationale and background to the study, and sets out the aims and objectives, together with detailing briefly the work carried out. Chapter 1 also provides details on the geological and environmental setting of the study area, together with the archaeological context.
Chapter 2 is focussed on data and information management. The project has required the integration of large datasets both acquired from industry, or acquired by the project. A significant task has been to build a GIS to efficiently manage these complex datasets. We believe this chapter will provide English Heritage managers with an excellent overview of the chief components and tasks involved with data management for a major marine archaeology assessment project.
Chapter 3 is concerned firstly with the acquisition and processing of the multibeam swath bathymetry data and sidescan sonar data. The second part of the chapter describes in some details the results and interpretation of these datasets.
Chapter 4 describes the details of the acquisition and processing of the multichannel boomer seismic data. The processes involved in the complex processing are detailed and preliminary interpretations are drawn.
Chapter 5 presents the results and interpretation of the analysis of the seismic stratigraphy and sedimentology of the Arun palaeovalley system. The entire offshore Arun system is discussed and the chapter makes use of both the data acquired by the project and the data donated by industrial collaborators. A synthesis of the evolution of the palaeo-Arun valley system is developed.
Chapter 6 provides an assessment of the potential for archaeological resources in the study area. An evaluation is made of the success and future potential of the geophysical techniques we have utilised in our study. Recommendations for future studies are offered.