High resolution measurements of absolute thorium abundances on the lunar surface
- 1 September 1999
- journal article
- Published by American Geophysical Union (AGU) in Geophysical Research Letters
- Vol. 26 (17) , 2681-2684
- https://doi.org/10.1029/1999gl008361
Abstract
The Lunar Prospector (LP) Gamma‐Ray Spectrometer (GRS) has been used to map the global abundance of thorium on the lunar surface. A global map of absolute thorium abundances on a 2° by 2° equal‐area pixel scale is presented using new detector modeling results and low altitude LP data. Because thorium is relatively abundant in KREEP‐rich material, these data provide fundamental information regarding the locations and importance of terranes that are rich in KREEP bearing materials.Keywords
This publication has 15 references indexed in Scilit:
- The Lunar Prospector gamma-ray and neutron spectrometersNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1999
- Lunar Fe and Ti Abundances: Comparison of Lunar Prospector and Clementine DataScience, 1998
- Physics-based generation of gamma-ray response functions for CdZnTe detectorsJournal of Radioanalytical and Nuclear Chemistry, 1998
- FeO and TiO2 concentrations in the South Pole‐Aitken basin: Implications for mantle composition and basin formationJournal of Geophysical Research, 1998
- The Imbrium impact event and the thorium distribution at the lunar highlands surfaceJournal of Geophysical Research, 1998
- Concentrations of radioactive elements in lunar materialsJournal of Geophysical Research, 1998
- Efficiency of 7.62 cm bismuth germanate scintillatorsNuclear Instruments and Methods in Physics Research, 1984
- On the thermal history, thermal state, and related tectonism of a moon of fission originJournal of Geophysical Research, 1980
- The origin of KREEPReviews of Geophysics, 1979
- Expected γ ray emission spectra from the lunar surface as a function of chemical compositionJournal of Geophysical Research, 1973