sr_MI {assignR}

data: low resolution locally weathered Sr isoscape for Michigan

Description

Modeled 87Sr/86Sr value of the local rock weathering flux, obtained from waterisotopes.org and aggregated to 10 km resolution.

Usage

sr_MI

Format

SpatRaster with two layers. The first layer is the mean prediction and the second is 1 standard deviation (here estimated as 1 percent of the modeled mean)

References

Bataille, C. P. and Bowen, G. J. (2012) Mapping 87Sr/86Sr variations in bedrock and water for large scale provenance studies. Chemical Geology, 304–305, 39–52.

Examples

library(terra)

plot(sr_MI)