A dataset containing petrographic, mineralogical, and geochemical data of wine Roman amphorae from Catalonia, NE Spain.
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A data frame with 238 rows and 148 variables:
Archaeological site name (see levels(amphorae$Site_Name)
)
Initials indicating site location (see levels(amphorae$LOCATION_SITE_INITIALS)
)
Is the observation fully characterised? ("complete", "incomplete"; in this data set all are "complete")
Fabric group (see levels(amphorae$FabricGroup)
)
Chemical reference group (see levels(amphorae$ChemReferenceGroup)
)
Inclusions distribution ("poorly", "poorly to moderately", "moderately", "moderately to well", "well", "none")
Inclusions orientation ("unparallel", "slightly parallel", "parallel", "none")
Estimated firing temperature in degrees Celsius ("unfired", "700-800oC", "800-900oC", "900-1000oC", "1000-1100oC")
Firing atmosphere ("reducing", "reducing to oxidising", "oxidising", "indeterminate"; in this data set all are "oxidising")
Post-firing atmosphere ("reducing", "reducing to oxidising", "oxidising", "indeterminate"; in this data set all are either "oxidising" or "indeterminate")
Overall void frequency ("none", "very few", "few", "common", "abundant", "very abundant")
Void frequency by shape and size ("none", "few", "frequent", "predominant")
Inclusions coarse fraction frequency ("none", "very few", "few", "common", "abundant", "very abundant")
Inclusions coarse fraction grain size ("none","very fine","very fine to fine","fine","fine to medium","medium","medium to coarse","coarse","coarse to very coarse","very coarse")
Inclusions coarse fraction roundness ("angular","angular to subangular", "subangular","subangular to subrounded","subrounded","subrounded to rounded","rounded","none")
Inclusions coarse fraction form ("elongate","elongate to equidimensional","equidimensional","equidimensional to laminar","laminar", "none")
Inclusions coarse fraction spacing ("single-spaced","single to double-spaced","double-spaced","double to open-spaced","open-spaced","none")
Inclusions coarse fraction sorting ("poorly-sorted","poorly to moderately-sorted","moderately-sorted","moderately to well-sorted","well-sorted","none")
Inclusions coarse fraction (rocks) frequency by type ("none", "few", "common", "frequent", "dominant", "predominant")
Inclusions coarse fraction (crystals) frequency by type ("none", "few", "common", "frequent", "dominant", "predominant")
Inclusions fine fraction frequency ("none", "very few", "few", "common", "abundant", "very abundant")
Inclusions fine fraction grain size ("none","very fine silt","very fine to fine silt","fine silt","fine to medium silt","medium silt","medium to coarse silt","coarse silt","coarse silt to very fine sand")
Inclusions fine fraction form ("elongate","elongate to equidimensional","equidimensional","equidimensional to laminar","laminar", "none")
Inclusions fine fraction (crystals) frequency by type ("none", "few", "frequent", "predominant")
Component mass (Fe2O3)
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