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Geophysical Survey
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The measuring and recording of electrical resistivity or magnetism in order to determine the existence and outline of buried features such as walls and ditches. Geophysical techniques include resistivity survey, magnetometer survey and ground penetrating radar.
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Magnetometer Survey
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A magnetometer survey measures the earth's magnetic field and the effects that structures in the ground may have on it. For example, walls, pits and trenches might display different levels of magnetism than the surrounding ground. These differences can affect the readings taken during the survey. Once the readings have been recorded they are plotted out to produce a plan of features that exist below the ground. See also geophysical survey.
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Iron Age
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About 800 BC to 43 AD
The Iron Age comes after the Bronze Age and before the Roman period. It is a time when people developed the skills and knowledge to work and use iron, hence the name ‘Iron Age’ which is given to this period. Iron is a much tougher and more durable metal than bronze but it also requires more skill to make objects from it. People continued to use bronze during this period. more ->
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Roman
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About 43 AD to 409 AD (the 1st century AD to the 5th century AD)
The Roman period comes after the Iron Age and before the Saxon period.
The Roman period in Britain began in 43 AD when a Roman commander called Aulus Plautius invaded the south coast, near Kent. There were a series of skirmishes with the native Britons, who were defeated. In the months that followed, more Roman troops arrived and slowly moved westwards and northwards. more ->
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HOUSE *
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A building for human habitation, especially a dwelling place. Use more specific type where known.
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SITE *
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Unclassifiable site with minimal information. Specify site type wherever possible.
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SETTLEMENT *
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A small concentration of dwellings.
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RECTILINEAR ENCLOSURE *
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A monument consisting of an area of land enclosed by a ditch, bank, wall, palisade or similar barrier, where the barrier consists of several straight or near straight sections.
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CURVILINEAR ENCLOSURE *
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A monument consisting of an area of land enclosed by a ditch, bank, wall, palisade or similar barrier, where the boundary follows an irregular curving course.
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FEATURE *
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Areas of indeterminate function.
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PIT *
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A hole or cavity in the ground, either natural or the result of excavation. Use more specific type where known.
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ENCLOSURE *
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An area of land enclosed by a boundary ditch, bank, wall, palisade or other similar barrier. Use specific type where known.
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DITCH *
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A long and narrow hollow or trench dug in the ground, often used to carry water though it may be dry for much of the year.
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STRUCTURE *
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A construction of unknown function, either extant or implied by archaeological evidence. If known, use more specific type.
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ROUND *
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A small, Iron Age/Romano-British enclosed settlement found in South West England.
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DOMESTIC *
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This is the top term for the class. See DOMESTIC Class List for narrow terms.
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* Copyright of English Heritage (1999)