USGS - science for a changing world

Mineral Resources On-Line Spatial Data

Mineral Resources > Online Spatial Data > Catalog > Topics > Elements > Chemical elements
Help
Thorium
Rare earth (actinide series) element with symbol Th and atomic number 90 <http://periodic.lanl.gov/elements/90.html>
This category is also used for Th.
Subtopics:
(none)

Results 1 - 5 of 5 listed by similarity [list alphabetically]
Gamma-ray, magnetic, and topographic data for parts of the Colorado Front Range [New Window]
Five geospatial grids from the NURE surveys, showing potassium, uranium, and thorium concentration, residual magnetic field, and digital elevation.
National geophysical data grids; gamma-ray, gravity, magnetic, and topographic data for the conterminous United States [New Window]
Gridded geophysical data in a variety of formats.
Terrestrial radioactivity and gamma-ray exposure in the United States and Canada [New Window]
Data generated by aerial sensing of radiation emanating from the earth's surface provides general estimates of the geographic distribution of Uranium, Thorium, and Potassium in surficial and bedrock units. Covers the conterminous United States, southeaste
Aerial gamma-ray surveys in Alaska [New Window]
Measurements indicating abundance of radioactive elements in near-surface rocks. Grids and flight-line data from surveys flown 1976-1980.
Merged aeroradiometric data for Alaska [New Window]
Gridded data from aeroradiometric surveys of Alaska.

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://tin.er.usgs.gov/catalog/science.php?thcode=2&term=1593
Page Contact Information: pschweitzer@usgs.gov
Page Last modified: 15:29 on 24-Mar-2009