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Concept
Section (archaeology)
Summary
In archaeology a section is a view in part of the archaeological sequence showing it in the vertical plane, as a cross section, and thereby illustrating its profile and stratigraphy. This may make it easier to view and interpret as it developed over time.
Half-sectioning is the usual method whereby one half of a feature is excavated and the remainder left in situ. Large linear features may be sectioned at intervals along their lengths. Sectioning has fallen out of favour in some schools of practice because detail is often missed in section that is important to the phasing of the site. Examples of detail that is revealed poorly "in section" include gravel or thin cobbled surfaces. The main problem with sections is that the arbitrary location of their placement may "clip" or "just miss" contexts that reveal a different story from the one interpreted by the archaeologist. For instance thin liner features such as wheel ruts may be sectioned at an oblique angle giving the impression of a wider feature as the eye and brain tends to assume that features revealed in section have been cut at right angles to the orientation the feature was made. Numerous other false readings of sections are possible to the unwary, this is why excavation "in plan" is now preferred. Sections are used in conjunction with two-dimensional excavation by plan to determine the origin of archaeological remains. For recording purposes sections are normally drawn at a scale of 1:10 or 1:20 with their height related to the site benchmark which in turn is related back to a level fixed at some agreed standard of sea level. Orientation should also be recorded. If the section is instructive a photographic record may also be made.
Sections may also be employed in excavation in temporary fashion as a form of stratigraphic control so as to ascertain the relationship between two or more contexts which may be better examined by the use of a section.
Official source
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