ramps (version 0.6-12)

NURE: Dataset of USGS NURE Uranium Measurements

Description

Connecticut, USA, areal and point-source uranium measurements from the United States Geological Survey (USGS) National Uranium Resource Evaluation (NURE) project.

Usage

data(NURE)

References

Duval, J.S., Jones, W.J., Riggle, F.R., and Pitkin, J.A. (1989) Equivalent uranium map of conterminous United States, USGS Open-File Report 89-478.

Smith, S.M.(2006) National Geochemical Database Reformatted Data from the National Uranium Resource Evaluation (NURE) Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) Program, USGS Open-File Report 97-492.

Examples

data(NURE)

## Map areal and point-source measurements
ppm1 <- NURE$ppm[NURE$measurement == 1]
level <- (max(ppm1) - ppm1) / diff(range(ppm1))
map("county", "connecticut", fill = TRUE, col = gray(level))
title("Connecticut Uranium Measurements")
points(NURE$lon, NURE$lat)

## Map grid sites
map("county", "connecticut")
title("Regular Grid of Coordinates")
points(NURE.grid$lon, NURE.grid$lat)