Sediment description and LOI

Since finishing the 2015 fieldwork season in mid-November, the (not so) cold Winter days have been spent locked away in the lab working on the cores. In total, we collected just over 150 metre-long sediment cores from our 10 study sites this year… we’ve certainly got plenty of work to do!

Once the cores are offloaded back at the university, the first job is to saw the cores open using a small circular saw. The exposed face of the sediments within is then cleaned: the surface of the sediment which was in contact with the plastic tube is usually a little disturbed, so this is carefully peeled away with a scalpel. This reveals all the fine details: the subtle changes in texture, colour, and any layering or ‘structure’ all of which can help us to understand how the deposits used to make the mound were formed.

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The cores are carefully cleaned with a scalpel to reveal the fine details – here are some very fine wavy laminations, possibly a ‘trample’ layer, with some waterlogged wood at the base of a core.

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The Lie of the Land: analytical survey of earthworks and landscapes

In his pioneering book The Making of the English Landscape published in 1955, W.G. Hoskins noted ‘everything in the landscape is older than we think’. The evidence for this is all around us. And once you know what to look for, you can’t help but see it.

Not much of England has escaped being altered by humans. Even in the seemingly wild places – such as the bleak uplands of Dartmoor or the rugged peaks of the Lakes – you can find evidence for past human activity. These previous interventions play an integral part in defining the character of the countryside we see and value today. The earthwork banks of prehistoric enclosures, the network of roads and field boundaries that connect and divide the countryside, and the fabric of village houses are all imprints of past inhabitants. The English landscape therefore incorporates the actions, behaviour and beliefs of people, and represents a living record of the past.

The English landscape represents a living record of the past

The English landscape represents a living record of the past

Analytical survey is a powerful tool that can help unravel the stories embedded in the landscape record. Through keen observation, careful recording and thoughtful analysis of visible archaeological and historical remains, insightful interpretations of a site or landscape can emerge. It is especially powerful when combined with desk-based research – incorporating information from current and historic maps, aerial photographs, historical documents and the findings of previous research. It can also help target further research using other specialist techniques (such as geophysical survey, archaeological excavation or environmental assessment) and can provide a wider context for their results. Continue reading

Holy Mounds, Sacred Springs. Prehistoric mounds and their landscapes.

To put the Round Mounds Project in context, Dr Jim Leary describes some previous work on Neolithic round mounds in Wiltshire and how those sites might give us some clues in the search for other similar mounds elsewhere…

One way of identifying mounds with potential for prehistoric origins is to look at the landscape settings of known prehistoric mounds and target sites in similar settings. Recent work on three huge mounds in Wiltshire has proved invaluable.

Silbury Hill: The largest prehistoric mound in Europe

Jim Leary, David Field and Gill Campbell. 2014. Silbury Hill: The largest prehistoric mound in Europe.

On the chalk massif in Wiltshire, near the famous Avebury henge, is a huge pudding bowl-shaped earthen mound called Silbury Hill. It dates to the later Neolithic period, and at 31m high is the largest prehistoric mound in Europe. Recently it was the focus of a multi-million pound archaeological and conservation project after a cavity opened up on the summit in 2000. Although many have suggested that it could have acted as an elevated arena, one of the most striking aspects of the mound is its setting – occupying a low-lying position surrounded by high terrain. This precludes the desire for height and visibility as the main reason for construction. It was not meant to be a prominent feature within the landscape; in fact it is relatively hidden when viewed from afar. Its associations are low down in the landscape – with water. Indeed, Silbury Hill occupies a springhead location and is situated at a confluence of springs and winterbournes of the River Kennet, effectively marking the river’s source. Continue reading

Drilling to the Core of the Mound: a minimally intrusive archaeological technique

A key element of the Round Mounds Project is the use of minimally-intrusive techniques of archaeological investigation to uncover new information about large mounds in the English landscape. By using small-diameter boreholes we are able to obtain the information we need without having to resort to destructive and time-consuming excavation.

Drilling at Bramber Castle, W Sussec

The power auger in action at Bramber Castle.

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Medieval Motte or Prehistoric Mound? How we selected our study sites

Castle mottes are large earth and stone mounds, often coupled with a bailey, and are a characteristic component of the British landscape. Ask most people and they will have a favourite castle. It may be a local landmark which forms a familiar part of daily life or a more distant memory of a cherished past experience.

The motte and restored shell keep of Arundel Castle, West Sussex

The motte and restored shell keep of Arundel Castle, West Sussex

There are around 900 mottes or motte and bailey castles recorded from across England. So how did the Round Mounds Project team narrow this down to just 20 mottes for detailed study? Perhaps not surprisingly the first stage involved a review of existing information. The aim of this work was to identify castle sites with the potential for prehistoric origin. Continue reading