Harris matrix: Difference between revisions - Wikipedia

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==Harris's Laws of Archaeological Stratigraphy==

===Law of superposition===

{{Main|Law of superposition}}

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{{Main|Principle of original horizontality}}

Any archaeological layer deposited in an unconsolidated form will tend towards a horizontal disposition. Strata which are found with tilted surfaces were so originally deposited, or lie in conformity with the contours of a pre-existing basin of deposition.

===Law of original continuity===

Any archaeological deposit, as originally laid down, will be bounded by the edge of the basin of deposition, or will thin down to a feather edge. Therefore, if any edge of the deposit is exposed in a vertical plane view, a part of its original extent must have been removed by [[Excavation (archaeology)|excavation]] or [[erosion]]: its continuity must be sought, or its absence explained.

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[[Category:Methods and principles in archaeology]]

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