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Stratigraphic Analysis

Stratigraphic Analysis . 1. Issues of Principle The role of on-site interpretation Correlations across sequence Correlations through the sequence 2. Issues of Practice A suggested order of operations An order for considering each unit Using sequence diagrams in analysis

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Stratigraphic Analysis

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  1. Stratigraphic Analysis 1. Issues of Principle The role of on-site interpretation Correlations across sequence Correlations through the sequence 2. Issues of Practice A suggested order of operations An order for considering each unit Using sequence diagrams in analysis 3. The Results of Analysis Concepts of Grouping Diagrammatic representation

  2. Issues of Principle The role of on-site interpretation: formation processes, functions and correlations deduced on site vs. data-gathering distinct from data-analysis Correlations across sequence (contemporaneity) based on physical characteristics and position in sequence (site formation affects expected similarity). Correlations through the sequence not just physical similarity but site formation as a whole

  3. Issues of Practice A suggested order of operations: colour code according to basic descriptive criteria correlate horizontally, distinguish between construction/occupation/ destruction relate to previous event, hence vertical block and group plan higher-order interpretations with rationale An order for considering each unit critical paths and stratigraphic nodes Using sequence diagrams to show: Data collection methods (e.g. section vs. plan) ‘Fuzzy’ boundaries Basic strata types by colour (soil texture and inclusions)

  4. The Results of Analysis Concepts of Grouping lowest order is a set of actions which make up an activity (not all actions belong with equal certainty - not necessarily to most water-tight, other analyses may break them apart) periods of site-wide activity (line drawn across whole sequence diagram – depends on size of ‘the site’) groupings between activity and period project-specific Diagrammatic representation strength of correlation types of interpretative unit length of unit life (stretched – land-use diagram) phasing structure (e.g. as an overlay)

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