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No 61 St Aldate’s, Oxford

Champness, Carl (2011) No 61 St Aldate’s, Oxford. Project Report. Oxford Archaeological Unit Ltd. (Unpublished)

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Abstract

In September 2010, Oxford Archaeology South (OAS) undertook an archaeological field investigation at a proposed new student accommodation building at the site of 61 St Aldate's, Oxford. The Site lies just off the Grandpont, one of the principal historical crossing points over the River Thames. The purpose of the work was to provide baseline data regarding the preservation of archaeological and palaeoenvironmental remains at the site. A watching brief was maintained on all intrusive works associated with the removal of the existing building remains. A number of trenches were excavated for new services and to removed existing ones. Two foundation pits for a lift shaft and crane base were also monitored. In addition two geoarchaeological boreholes were undertaken on the site in order to mitigate the impacts of piling and to assess the geoarchaeological potential. No significant archaeological features or deposits were identified during the watching brief. The service trenches revealed a sequence of modern building rubble overlying thick post medieval land make-up deposits, on to a moderately well preserved floodplain sequence. With the exception of the ground piles, the impact of the development will be confined mostly to the post medieval reclamation deposits. The trenches only went deep enough to investigate the upper alluvial sequence. Only the boreholes were able to record the full alluvial sequence to Pleistocene gravels. The two boreholes produced a 3.4m deep Holocene sequence of organic silts and alluvium overlying Pleistocene gravel and sealed by up to 2m of post medieval land reclamation deposits. The results of the fieldwork would suggest the site was reclaimed from the 11th century associated with the construction of the Grandpont, and then late experienced significant ground raising activities in the post medieval period. Prior to this the site may have been too wet for occupation and frequently prone to waterlogging and flooding. ©

Item Type:Monograph (Project Report)
Subjects:Geographical Areas > English Counties > Oxfordshire
Period > UK Periods > Post Medieval 1540 - 1901 AD
ID Code:602
Deposited By: Scott
Deposited On:31 May 2011 13:42
Last Modified:22 Dec 2011 14:47

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