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单词 soil mark
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soil mark
soil mark n. Archaeology a trace of a levelled or buried feature indicated by differences in the colour or texture of the soil, usually on ploughed land.
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the world > the earth > structure of the earth > constituent materials > earth or soil > [noun] > soil mark
turf-line1935
soil mark1939
the world > time > relative time > the past > history or knowledge about the past > [noun] > archaeology > soil mark indicating earlier cultivation, etc.
cultivation mark1885
crop-mark1935
crop-marking1937
soil mark1939
1939 G. Clark Archaeol. & Society ii. 38 In chalk regions subjected to heavy ploughing, soil-marks, especially when seen from the air, preserve the sites of ancient monuments.
1950 Oxoniensia 15 7 The best results of an air-survey of Celtic field-systems may be expected from photographs taken during the winter months... Soil-marks..will be more evident.
1963 E. S. Wood Collins Field Guide Archaeol. iii. i. 284 Another type of mark is the soil-mark. When earthworks or barrows are levelled, or when grass is stripped, or on bare (ploughed) land, differences in soil-colour become apparent.
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