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excavation
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Archaeologists excavate sites so that they can find information and recover archaeological materials before they are destroyed by erosion, construction or changes in land-use.
Depending on how complicated and widespread the archaeological deposits are, excavation can be done by hand or with heavy machinery. Archaeologists may excavate a site in a number of ways; either by open area excavation, by digging a test pit or a trial trench. more ->
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LAYER *
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An archaeological unit of soil in a horizontal plane which may seal features or be cut through by other features.
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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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TRENCH *
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An excavation used as a means of concealment, protection or both.
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* Copyright of English Heritage (1999)