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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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Cropmark
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Cropmarks appear as light and dark marks in growing and ripening crops. These marks relate to differences in the soil below. For example, parched lines of grass may indicate stone walls. Crops that grow over stone features often ripen more quickly and are shorter than the surrounding crop. This is because there is less moisture in the soil where the wall lies.
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Trial Trench
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A small regular hole that is usually square or rectangular in shape. Archaeologists dig trial trenches to discover if there are any archaeological remains at a particular location. See also excavation.
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Aerial Photograph
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Aerial photographs are taken during an aerial survey, which involves looking at the ground from above. It is usually easier to see cropmarks and earthworks when they are viewed from above. Aerial photographs help archaeologists to record what they see and to identify new sites. There are two kinds of aerial photographs; oblique and vertical.
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Prehistoric
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About 500,000 BC to 42 AD
The Prehistoric period covers all the periods from the Palaeolithic to the end of the Iron Age.
This is a time when people did not write anything down so there is no documentary evidence for archaeologists to look at. Instead, the archaeologists look at the material culture belonging to the people and the places where they lived for clues about their way of life.
The Prehistoric period is divided into the Early Prehistoric and Later Prehistoric.
The Early Prehistoric period covers the Palaeolithic and Mesolithic periods.
The Later Prehistoric period covers Neolithic, Bronze Age and Iron Age times.
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Bronze Age
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About 2500 BC to 700 BC
The Bronze Age comes after the Neolithic period and before the Iron Age.
The day to day life of people in the Bronze Age probably changed little from how their ancestors had lived during the Neolithic period. They still lived in farmsteads, growing crops and rearing animals.
During the Bronze Age people discovered how to use bronze, an alloy of tin and copper (hence the name that has given to this era). They used it to make their tools and other objects, although they continued to use flint and a range of organic materials as well. A range of bronze axes, palstaves and spears has been found in Warwickshire.
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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.
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GRANGE *
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An outlying farm or estate, usually belonging to a religious order or feudal lord. Specifically related to core buildings and structures associated with monastic land holding. Use specific term where known.
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SETTLEMENT *
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A small concentration of dwellings.
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FEATURE *
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Areas of indeterminate function.
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RECTANGULAR ENCLOSURE *
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A rectangular shaped area of land enclosed by a boundary ditch, bank, wall, palisade or similar barrier.
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FARMSTEAD *
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The homestead of a farm consisting of a farmhouse and working farm buildings, with yards, other working areas and usually a garden to the house.
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FIELD SYSTEM *
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A group or complex of fields which appear to form a coherent whole. 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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RING DITCH *
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Circular or near circular ditches, usually seen as cropmarks. Use the term where the function is unknown. Ring ditches may be the remains of ploughed out round barrows, round houses, or of modern features such as searchlight emplacements.
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TRENCH *
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An excavation used as a means of concealment, protection or both.
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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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HUT CIRCLE *
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A round house indicated by the presence of a low, roughly circular bank of turf, earth or stone, which formed the base of the walls. Characteristic of the later prehistoric period. Where several occur together use HUT CIRCLE SETTLEMENT.
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SUBRECTANGULAR ENCLOSURE *
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A monument consisting of an area enclosed by a ditch, bank, wall, palisade or similar barrier, where the barrier follows an almost rectangular course.
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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)
