avstrat: Stratigraphic Data Processing and Section Plots

Data processing and generating stratigraphic sections for volcanic deposits and tephrastratigraphy. Package was developed for studies on Alaska volcanoes ("av") where stratigraphic ("strat") figures are needed for interpreting eruptive histories, but the methods are applicable to any sediment stratigraphy project. Plotting styles inspired by "SedLog" (Zervas et al. 2009) <doi:10.1016/j.cageo.2009.02.009> but with more customizable outputs and flexible data input based on best practice recommendations for the tephra community (Wallace et al. 2022) <doi:10.1038/s41597-022-01515-y>.

Version:	0.1.1
Depends:	R (≥ 4.1.0)
Imports:	dplyr, tidyr, ggplot2 (≥ 4.0), grid, patchwork, rlang, shiny, leaflet
Suggests:	knitr, readxl, rmarkdown, testthat (≥ 3.0.0), tibble, withr
Published:	2026-02-04
DOI:	10.32614/CRAN.package.avstrat (may not be active yet)
Author:	Matthew Loewen [aut, cre]
Maintainer:	Matthew Loewen <mloewen at usgs.gov>
BugReports:	https://code.usgs.gov/vsc/tephra/tools/avstrat/-/issues
License:	CC0
Copyright:	This software is in the public domain because it contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior.
NeedsCompilation:	no
Citation:	avstrat citation info
Materials:	README, NEWS
CRAN checks:	avstrat results

Documentation:

Reference manual:	avstrat.html , avstrat.pdf
Vignettes:	avstrat_workflow-examples (source, R code)

Downloads:

Package source:	avstrat_0.1.1.tar.gz
Windows binaries:	r-devel: avstrat_0.1.1.zip, r-release: not available, r-oldrel: not available
macOS binaries:	r-release (arm64): not available, r-oldrel (arm64): not available, r-release (x86_64): avstrat_0.1.1.tgz, r-oldrel (x86_64): avstrat_0.1.1.tgz

Linking:

Please use the canonical form https://CRAN.R-project.org/package=avstrat to link to this page.