Thorium abundances on the lunar surface

Journal of Geophysical Research: Planets

Volumn 105, Issue E8, 2000, Pages 20307-20331

  Lawrence, D J ^a   Feldman, W C ^a   Barraclough, B L ^a   Binder, A B ^b   Elphic, R C ^a   Maurice, S ^c   Miller, M C ^d   Prettyman, T H ^a  

^a LOS ALAMOS NATIONAL LABORATORY   (United States)

^b Lunar Research Institute   (United States)

^c OBSERVATOIRE MIDI PYRÉNÉES   (France)

^d LAWRENCE LIVERMORE NATIONAL LABORATORY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

LUNAR CRUST; LUNAR SOIL; MOON; REGOLITH; THORIUM;

EID: 0033765027     PISSN: 01480227     EISSN: None     Source Type: Journal    
DOI: 10.1029/1999JE001177     Document Type: Article

References (40)

1. Blewett, D. T., G. J. Taylor, P. G. Lucey, B. R. Hawke, and J. Gillis, High-resolution, quantitative remote sensing of South Pole-Aitken Basin, Lunar Planet. Sci. Conf. 30th, abstract 1438, 1999.
2. Elphic, R. C., S. Maurice, D. J. Lawrence, W. C. Feldman, B. L. Barraclough, A. B. Binder, and P. G. Lucey, Lunar Fe and Ti abundances: Comparison of Lunar Prospector and Clementine data, Science, 281, 1493, 1998.
3. 2: Lunar Prospector neutron spectrometer observations, J. Geophys. Res., this issue.
4. Evans, L. G., R. C. Reedy, and J. I. Trombka, Introduction to planetary remote sensing gamma ray spectroscopy, in Remote Geochemical Analysis: Elemental and Mineralogical Composition, edited by C. M. Pieters and P. A. J. Englert, p. 167-198, Cambridge Univ. Press, New York, 1993.
5. Feldman, W. C., B. L. Barraclough, S. Maurice, R. C. Elphic, D. J. Lawrence, D. R. Thomsen, and A. B. Binder, Major compositional units of the Moon: Lunar Prospector thermal and fast neutrons, Science, 281, 1489, 1998.
6. Feldman, W. C., B. L. Barraclough, K. R. Fuller, D. J. Lawrence, S. Maurice, M. C. Miller, T. H. Prettyman, and A. B. Binder, The Lunar Prospector gamma-ray and neutron spectrometers,Nucl. Instrum Methods Phys. Res., Sec. A, 422, 562, 1999.
7. Haskin, L. A., The Imbrium impact event and the thorium distribution at the lunar highlands surface, J. Geophys. Res., 103, 1679, 1998.
8. Haskin, L. A., and P. Warren, Lunar chemistry, inLunar Sourcebook, edited by G. H. Heiken, D. T. Vaniman, and B. M. French, p.357-474, Cambridge Univ. Press, New York, 1991.
9. Haskin, L. A., R. L. Korotev, K. M. Rockow, and B. L. Jolliff, The case for an Imbrium origin of the Apollo thorium-rich impact-melt breccias, Meteorit. Planet Sci., 33, 959, 1998.
10. Hawke, B. R., and J. W. Head, Lunar KREEP volcanism: Geologic evidence for history and mode of emplacement, Proc. Lunar Planet. Sci. Conf. 9th, 3285, 1978.
11. Hawke, B. R., and P. D. Spudis, Geochemical anomalies on the eastern limb and farside of the Moon, in Proceedings of the Conference on the Lunar Highlands Crust, edited by J. J. Papike and R. B. Merrill, p.467, Pergamon, New York, 1980.
12. Korotev, R. L., Concentrations of radioactive elements in lunar materials, J. Geophys. Res., 103, 1691, 1998.
13. Korotev, R. L., A new estimate of the composition of the feldspathic upper crust of the Moon, Lunar Planet. Sci. Conf. 30th, abstract 1303, 1999.
14. Langevin, Y., and J. R. Arnold, The evolution of the lunar regolith, Annu. Rev. Earth Planet. Sci., 5, 449, 1977.
15. Lawrence, D. J., W. C. Feldman, B. L. Barraclough, A. B. Binder, R. C. Elphic, S. Maurice, and D. R. Thomsen, Global elemental maps of the Moon: The Lunar Prospector Gamma-Ray Spectrometer, Science, 284, 1484, 1998.
16. Lawrence, D. J., W. C. Feldman, B. L. Barraclough, R. C. Elphic, S. Maurice, A. B. Binder, M. C. Miller, and T. H. Prettyman, High resolution measurements of absolute thorium abundances on the lunar surface, Geophys. Res. Lett., 26 (17), 2681, 1999a.
17. Lawrence, D. J., S. Maurice, and W. C. Feldman, Software Interface Specification (SIS) for the Lunar Prospector Spectrometer Planetary Data System Files, Version V001 and Version V002, NASA Planetary Data System, Geosciences Node, Washington University, St. Louis and Los Alamos Nat. Lab. Rep. LAUR-99-2753 and LAUR-99-2754, Los Alamos, N.M., 1999b.
18. 2 concentrations in the South Pole-Aitken basin: Implications for mantle composition and basin formation, J. Geophys. Res., 103, 3701, 1998.
19. Lucey, P. G., et al., Lunar iron and titanium abundance algorithms based on final processing of Clementine UVVIS images,J. Geophys. Res., this issue.
20. McKay, D. S., G. Heiken, A. Basu, G. Blanford, S. Simon, R. Reedy, B. M. French, and J. Papike, The lunar regolith, inLunar Sourcebook, edited by G. H. Heiken, D. T. Vaniman, and B. M French, p. 285-356, Cambridge Univ. Press, New York, 1991.
21. Metzger, A. E., E. L. Haines, R. E. Parker, and R. G. Radocinski, Thorium concentrations in the lunar surface, I, Regional values and crustal content, Proc. Lunar Sci. Conf. 8th, 949, 1977.
22. Pieters, C. M., Composition of the lunar highland crust from near-infrared spectroscopy, Rev. Geophys., 24 (3), 557, 1986.
23. Pieters, C. M., Compositional diversity and stratigraphy of the lunar crust derived from reflectance spectroscopy, inRemote Geochemical Analysis: Elemental and Mineralogical Composition, edited by C. M. Pieters and P. A. J. Englert, p.309-339, Cambridge Univ. Press, New York, 1993.
24. Pieters, C. M., S. Tomkins, J. W. Head, and P. C. Hess, Mineralogy of the mafic anomaly in the South Pole-Aitken Basin: Implications for excavation of the lunar mantle,Geophys. Res. Lett., 24, 1903, 1997.
25. Prettyman, T. H., C. S. Cooper, P. N. Luke, P. A. Russo, M. Amman, and D. J. Mercer, Physics-based generation of gamma-ray response functions for CdZnTe detectors, J. Radioanal. Nucl. Chem., 233, 257, 1998.
26. Reedy, R. C., Planetary gamma-ray spectroscopy, Proc. Lunar Planet. Sci. Conf. 9th, 2961, 1978.
27. Reedy, R. C., J. R. Arnold, and J. I. Trombka, Expectedγ-ray emission spectra from the lunar surface as a function of chemical composition, J. Geophys. Res., 78, 5847, 1973.
28. Robinson, M. S., A. S. McEwen, E. Eliason, E. M. Lee, E. Malaret, and P. G. Lucey, Clementine UVVIS global mosaic: A new tool for understanding the lunar crust,Lunar Planet. Sci. Conf. 30th, abstract 1931, 1999.
29. Ryder, G., and P. Spudis, Chemical composition and origin of Apollo 15 impact melts, J. Geophys. Res., 92 (B4), E432, 1987.
30. Ryder, G. and J. A. Wood, Serenitatis and Imbrium impact melts: Implications for large-scale layering in the lunar crust,Proc. Lunar Sci. Conf. 8th, 655, 1977.
31. Smith, D. E., M. T. Zuber, G. A. Neumann, and F. G. Lemoine, Topography of the Moon from the Clementine LIDAR,J. Geophys. Res., 102, 1591, 1997.
32. Spudis, P. D., R. A. Reisse, and J. J. Gillis, Ancient multiring basins on the Moon revealed by Clementine laser altimetry,Science, 266, 1848, 1994.
33. Staid, M. S., C. M. Pieters, and J. W. Head III, Mare Tranquillitatis: Basalt emplacement history and relation to lunar samples,J. Geophys. Res., 101 (E10), 23213, 1996.
34. Taylor, G. J., P. Warren, G. Ryder, J. Delano, C. Pieters, and G. Lofgren, Lunar rocks, in Lunar Sourcebook, edited by G. H. Heiken, D. T. Vaniman, and B. M. French, p.183-284, Cambridge Univ. Press, New York, 1991.
35. Thomsen, D. R., D. J. Lawrence, D. Vaniman, W. C. Feldman, B. L. Barraclough, S. Maurice, P. G. Lucey, and A. B. Binder, Global geochemical variation on the lunar surface: A three element approach (abstract), in New Views of the Moon II: Understanding the Moon through the Integration of Diverse Datasets, Lunar and Planet. Inst., Houston, Tex., 1999.
36. Trombka, J. I., J. R. Arnold, R. C. Reedy, L. E. Peterson, and A. E. Metzger, Some correlations between measurements by the Apollo gamma-ray spectrometer and other lunar correlations,Proc. Lunar Sci. Conf. 4th, 2847, 1973.
37. Vaniman, D., J. Dietrich, G. J. Taylor, and G. Heiken, Exploration, samples, and recent concept of the Moon, inLunar Sourcebook, edited by G. H. Heiken, D. T. Vaniman, and B. M. French, p.5-26, Cambridge Univ. Press, New York, 1991.
38. Warren, P. H., The magma ocean concept and lunar evolution,Annu. Rev. Earth Planet. Sci., 13, 201, 1985.
39. Warren, P. H., and J. T. Wasson, The origin of KREEP, Rev. Geophys., 17, 73, 1979.
40. Wilhelms, D. E., The geologic history of the Moon, U.S. Geol. Surv. Prof. Pap., 1348, 302, 1987.