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Wessex Archaeology was commissioned by Boskalis Westminster Limited, on behalf of the Defence Infrastructure Organisation, to undertake a Stage 2 investigation of geoarchaeological boreholes recovered from the Portsmouth Harbour area. This assessment was undertaken in relation to a proposed scheme of dredging to accommodate Queen Elizabeth Class Aircraft Carriers in Portsmouth Harbour. The Stage 1 geoarchaeological review recognised a complex sequence of sediments and divided these sediments into three units, conformed to in this report. These comprised the underlying Eocene bedrock (Unit 1), a sequence of Pleistocene to early Holocene sands, gravels, clays and silts (Unit 2), and a sequence of intertidal clays and peats deposited during the Holocene, sealed by modern sands and gravels (Unit 3). The study area has been divided into four separate areas defined by broad similarities in the dominant shallow geology and modern environment (Areas A - D). Detailed geoarchaeological recording of sediments was undertaken on 19 vibrocore sequences acquired from Coastline Surveys, five each from Areas A, B and D and four from Area C. The cores do not contain any Bedrock (Unit 1) and predominantly contain Units 2 and 3, but particularly the latter unit, largely estuarine alluvium, marine sands, palaeobeach deposits and localised deposits of peat interbedded in alluvium. Recommendations are made for Stage 3 geoarchaeological assessment, focusing on the palaeoenvironmental analysis of peat and over- and underlying alluvial deposits in three cores from Area D. The remaining cores have limited or no potential for further geoarchaeological assessment.
English Heritage
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| Other details | ||
| Internal code | Internally assigned metadata identifier | 6475 |
| Title | The title is used to provide a brief and precise description of the dataset such as 'Date', 'Originating organisation/programme', 'Location' and 'Type of survey'. All acronyms and abbreviations should be reproduced in full. | Queen Elizabeth Class Capital Dredge Project Her Majesty's Naval Base Portsmouth: Stage 2 Geoarchaeological borehole |
| File Identifier | The File Identifier is a code, preferably a GUID, that is globally unique and remains with the same metadata record even if the record is edited or transferred between portals or tools. | 8f346dff-ec45-3b70-a21a-7db7ed4be0b6 |
| Resource Identifier | This is the code assigned by the data owner. | wessexar1-391472 |
| Resource type | The resource type will likely be a dataset but could also be a series (collection of datasets with a common specification) or a service. | dataset |
| Start date | This describes the date the resource starts. This may only be the year if month and day are not known | 2015-10-12 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2016-06-06 |
| Frequency of updates | This describes the frequency with which the resource is modified or updated i.e. a monitoring programme that samples once per year has a frequency that is described as 'annually'. | notPlanned |
| Abstract | The abstract provides a clear and brief statement of the content of the resource. | Wessex Archaeology was commissioned by Boskalis Westminster Limited, on behalf of the Defence Infrastructure Organisation, to undertake a Stage 2 investigation of geoarchaeological boreholes recovered from the Portsmouth Harbour area. This assessment was undertaken in relation to a proposed scheme of dredging to accommodate Queen Elizabeth Class Aircraft Carriers in Portsmouth Harbour. The Stage 1 geoarchaeological review recognised a complex sequence of sediments and divided these sediments into three units, conformed to in this report. These comprised the underlying Eocene bedrock (Unit 1), a sequence of Pleistocene to early Holocene sands, gravels, clays and silts (Unit 2), and a sequence of intertidal clays and peats deposited during the Holocene, sealed by modern sands and gravels (Unit 3). The study area has been divided into four separate areas defined by broad similarities in the dominant shallow geology and modern environment (Areas A - D). Detailed geoarchaeological recording of sediments was undertaken on 19 vibrocore sequences acquired from Coastline Surveys, five each from Areas A, B and D and four from Area C. The cores do not contain any Bedrock (Unit 1) and predominantly contain Units 2 and 3, but particularly the latter unit, largely estuarine alluvium, marine sands, palaeobeach deposits and localised deposits of peat interbedded in alluvium. Recommendations are made for Stage 3 geoarchaeological assessment, focusing on the palaeoenvironmental analysis of peat and over- and underlying alluvial deposits in three cores from Area D. The remaining cores have limited or no potential for further geoarchaeological assessment. |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | This metadata was prepared by the creator entered into the OASIS system hosted by the Archaeology Data Service. |
| Additional information | This describes relevant references to the data e.g. reports, articles, websites plus other useful information not captured elsewhere. | Wessex Archaeology (2016) Queen Elizabeth Class Capital Dredge Project Her Majesty's Naval Base Portsmouth Stage 2 Geoarchaeological borehole recording and deposit modelling, 111320.03. Wessex Archaeology: Salisbury |
| Related keywords | ||
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Marine Environmental Data and Information Network |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Archaeology | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 50.782787 |
| East | The eastern-most limit of the data resource in decimal degrees | -1.1016543 |
| South | The southern-most limit of the data resource in decimal degrees | 50.78259 |
| West | The western-most limit of the data resource in decimal degrees | -1.1018543 |
| Regional sea | United Kindgom | |
| Responsible organisations | ||
| Role | The point of contact is person or organisation with responsibility for the creation and maintenance of the metadata for the resource. | pointOfContact |
| Organisation name | Archaeology Data Service | |
| Phone | 01904 323 954 | |
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | Wessex Archaeology | |
| Role | The custodian is the person or organisation that accepts responsibility for the resource and ensures appropriate care and maintenance. If a dataset has been lodged with a Data Archive Centre for maintenance then this organisation is be entered here. | custodian |
| Organisation name | English Heritage | |
| Dataset constraints | ||
| Limitations on public access | Any restrictions imposed on accessing the resource such as the need to agree to certain licence conditions. | Restrictions Apply |
| Access constraints (code) | ISO restriction code chosen from ISO 19115-1 Codelist | otherRestrictions |
| Use constraints (code) | ISO restriction name chosen from ISO 19115-1 Codelist | otherRestrictions |
| Use constraints | Any restriction on the use of the resource such as the need to agree to certain licence conditions. | Terms and Conditions apply to reuse. |
| Version info | ||
| Date of publication | The publication date of the resource or if previously unpublished the date that the resource was made publicly available via the MEDIN network. | 2020-04-17 |
| Metadata date | The date when the content of this metadata record was last updated. | 2020-04-17 |
| Metadata standard name | The name of the metadata standard used to create this metadata | MEDIN Discovery Metadata Standard |
| Metadata standard version | The version of the MEDIN Discovery Metadata Standard used to create the metadata record | 2.3.2 |
© OpenStreetMap contributors