data-raw/deprecated/material_thesaurus_comments.md

In ropensci/c14bazAAR: Download and Prepare C14 Dates from Different Source Databases

Changes (19.06.2021)

• added additional terms for the agrichange database
• added additional terms for the caribbean database

Changes (25.04.2020)

• added additional terms for the rxpand database

Changes (30.08.2020)

• added additional terms from the new calpal version
• combined the categories NA, other and unknown to other/unknown - the distinction was not very clear
• changed some individual attributions

Changes (21.8.2020)

• added additional terms from the Katsianis database

Changes (18.08.2020)

• added values from emedyd

Changes (13.3.2018)

• had to add all the values from 14SEA.
• decided to further reduce the amount of categories.

defined classes (13.3.2018)

• antler
• bone
• ceramics
• charcoal
• fabric
• food residues
• other
• plant remains
• shell
• soil
• teeth
• unknown
• wood

Changes (21.2.2018)

• applied some of Martin's suggestions (see github 21.2.2018):
  • aragonite, ash, glass and quartz are now "other".

• Martin suggested to differentiate between human and animal bone. This would lead to three categories, since some bones are not described in more detail: e.g. "human bone", "animal bone", "bone"?

  • I don't know how important it is to differentiate between them. But in my opinion it would make the whole thing less easy to understand and work with? This is similar to the differentiation between "seawater shell" and "freshwater shell", which you, @MartinHinz, opted for to discard.
  • for consistency reasons I suggest to either summarize all bones under the category "bone" and all shells under the category "shell", or to break them both down into smaller, more precise categories.
    • categorized all kinds of shell as "shell"

• "Baked clay from heart", "mud-brick wall", "Clayball from hearth"

  • as "burnt clay"
• "calcium carbonate" (eggs) as "other"
• charred fruit, reed, seeds, (vekoold), etc. are now "charcoal"

defined classes (as of 21.2.2018)

• antler
• bark
• beeswax
• bone
• burnt clay
• ceramics
• charcoal
• fabric
• faeces
• food
• hair
• humic acid
• micro organism
• other
• plant remains
• pollen
• shell
• snail
• soil
• teeth
• tissue
• unknown
• wood

Changes (19.2.2018)

• applied Clemens' suggestions (see github: 15.2.18: "...Right now we have two different values for missing/bad/unclear information: NA and undefined. I suggest to replace undefined with other and NA with unknown. other: We have an information, but it's too strange/unique/specific to add it to the other established categories. unkown: We don't have any infomation.")
• new categories: beeswax, quartz, glass, pollen, humic acid,
• open questions:
  • what happens with "burned" or "charred" samples?
  • Is a marine snail (mangrove gastropod) different to a terrestrial snail (e.g. reservoir-effect)?
  • can "leather" be categorized as "tissue"?
  • where to put:
    • coal, graphite
    • clayball from hearth, mud-brick wall (ceramics?)
    • marine coral

defined classes (as of 19.2.2018)

• antler
• aragonite
• ash
• bark
• beeswax
• bone
• calcium carbonate
• ceramics
• charcoal
• fabric
• faeces
• food
• freshwater shell
• glass
• hair
• humic acid
• micro organism
• other
• plant remains
• pollen
• quartz
• shell
• snail
• soil
• teeth
• tissue
• unknown
• wood

Changes (10.2.2018)

defined classes (as of 10.2.2018)

• ash
• bark
• brain -> now tissue
• bone
• ceramics
• charcoal
• fabric
• faeces
• food
• hair
• horn
• plant remains
• shell
• soil
• teeth
• tissue
• NA
• wood
• aragonite

Changes (3.5.2019)

• added additional terms for the Palmisano database

Changes (25.06.2019)

• added additional terms for the EUBAR database

Changes (27.11.2019)

• added additional terms for the IRDD (Ireland) database

Changes (23.03.2020)

• added additional terms from the MedAfriCarbon & Jomon database

not yet defined, uncertain

• "Ash and charcoal" as ?
• "Ash and shell" as ?
• "ashy soil" as "ash"?

• "soot" as "ash"?

• "Austomylitus rostratus shell" non-existant?

• "baked clay from hearth" and "mud-brick wall" as "ceramics"?
• "beeswax"
• can "bulk..." be classified? or is it NA because of uncertainties? (e.g. "bulk sediment")
• what about "burnt" or "charred" plant remains or soil? is it important that it's burnt?
• "calcium carbonte" as own category. Eggshell is classified as "calcium carbonate"
• "carbon" can be charcoal in french, or just carbon? how to classify?
• differentiation between marine and freshwater shell?
• can "glass" even be dated?
• "human" has been classified as "bone" but that's very imprecise, isn't it? Changed it to "NA"
• "pig" has been classified as "bone" -> incorrect?
• what about "human blood protein"? how can this even be 14C-dated?
• "humid acid" was defined as "soil". changed it to "undefined"
• "humic..." as new soil categorie?
• "leather" was defined as "fabric". V. imprecise. changed it to "undefined"
• "pollen" as own category?
• "stone" has been defined as "soil" -> incorrect?
• "turtle carapace" as "bone"

ropensci/c14bazAAR documentation built on June 3, 2024, 6:23 a.m.