ObsidianArtifacts: Chemical composition of obsidian artifacts
In benmarwick/karon: Compositional Data Analysis of Archaeological Artefacts
ObsidianArtifacts R Documentation
Chemical composition of obsidian artifacts
Description
A data set containing data on five elements from 91 obsidian artifacts from the Pojoaque Valley
in north central New Mexico. The element presence values (parts per million) were obtained using
x-ray fluorescence at Steve Shackley's laboratory in Albuquerque, New Mexico (using a different
instrument than the one used to analyze the obsidian source data).
Usage
ObsidianArtifacts
Format
A data frame with 91 rows and 7 variables:
- Code
A one-character variable with a code for the Jemez source identified by Shackely
using a 2- or 3-dimensional scatterplot
- ID
A character variable with an artificial lab ID; the first character
is A; the remaining characters are 1:91
- Rb
The rubidium value
- Sr
The strontium value
- Y
The ytterbium value
- Zr
The zirconium value
- Nb
The niobium value
Source
The data are a random sample (30 from each of the three Jemez sources predicted by Shackely, plus
the single sample predicted from another source) from a data set on approximately 450 artifacts provided by
the state of New Mexico Office of Archaeological Studies (unpublished).
benmarwick/karon documentation built on July 29, 2023, 10:11 a.m.
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| ObsidianArtifacts | R Documentation |
Chemical composition of obsidian artifacts
Description
A data set containing data on five elements from 91 obsidian artifacts from the Pojoaque Valley in north central New Mexico. The element presence values (parts per million) were obtained using x-ray fluorescence at Steve Shackley's laboratory in Albuquerque, New Mexico (using a different instrument than the one used to analyze the obsidian source data).
Usage
ObsidianArtifacts
Format
A data frame with 91 rows and 7 variables:
- Code
A one-character variable with a code for the Jemez source identified by Shackely using a 2- or 3-dimensional scatterplot
- ID
A character variable with an artificial lab ID; the first character is A; the remaining characters are 1:91
- Rb
The rubidium value
- Sr
The strontium value
- Y
The ytterbium value
- Zr
The zirconium value
- Nb
The niobium value
Source
The data are a random sample (30 from each of the three Jemez sources predicted by Shackely, plus the single sample predicted from another source) from a data set on approximately 450 artifacts provided by the state of New Mexico Office of Archaeological Studies (unpublished).
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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