ObsidianSources | R Documentation |
Chemical composition of obsidian sources
ObsidianSources
A data frame with 113 rows and 7 variables:
A one-character variable with source code: A, B, C, D, E, F
A character variable with an artificial lab ID; the first character is the value of Code; the remaining characters are 1:n, with n samples from a source
The rubidium value
The strontium value
The ytterbium value
The zirconium value
The niobium value
A data set containing data on five elements from 113 obsidian samples from five sources in the Jemez caldera in north central New Mexico. The element presence values (parts per million) were obtained using x-ray fluorescence at a laboratory at the University of California in Berkeley.
Data are from Steve Shackley's website http://www.swxrflab.net/ and from files provided by Shackley.
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