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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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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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SITE *
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Unclassifiable site with minimal information. Specify site type wherever possible.
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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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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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WOOD *
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A tract of land with trees, sometimes acting as a boundary or barrier, usually smaller and less wild than a forest.
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POST HOLE *
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A hole dug to provide a firm base for an upright post, often with stone packing. Use broader monument type where known.
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* Copyright of English Heritage (1999)
