Lunar Fe and Ti abundances: Comparison of lunar prospector and Clementine data

Science

Volumn 281, Issue 5382, 1998, Pages 1493-1496

  Elphic, R C ^a   Lawrence, D J ^a   Feldman, W C ^a   Barraclough, B L ^a   Maurice, S ^b   Binder, A B ^c   Lucey, P G ^d  

^a LOS ALAMOS NATIONAL LABORATORY   (United States)

^b OBSERVATOIRE MIDI PYRÉNÉES   (France)

^c Lunar Research Institute   (United States)

^d UNIVERSITY OF HAWAII   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

IRON; TITANIUM;

ARTICLE; CHEMICAL COMPOSITION; COSMIC RADIATION; CRYSTALLIZATION; GEOLOGY; MOON; PRIORITY JOURNAL; SPACE FLIGHT;

CITRUS RETICULATA;

EID: 0032483417     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.281.5382.1493     Document Type: Article

References (15)

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3. D. T. Blewett, P. G. Lucey, B. R. Hawke, B. L. Jolliff, J. Geophys. Res. 102, 16319 (1997).
4. P. G. Lucey, D. T. Blewett, B. R. Hawke, ibid. 103, 3679 (1998).
5. P. E. Clark and A. Basu, Proc. Lunar Planet. Sci. Conf. 29, 1501 (1998). Olivine is the likeliest mineral to be underrepresented in the results from analysis of spectral data.
6. W. C. Feldman et al., Science, 281 1496 (1998).
7. W. C. Feldman et al., ibid., p. 1489 (1998).
8. D. M. Drake, W. C. Feldman, B. M. Jakosky, J. Geophys. Res. 93, 6353 (1988).
9. R. C. Reedy et al., Meteorit. Planet. Sd. 33 (suppl.), A127 (1998).
10. L. A. Haskin and P. H. Warren, in Lunar Sourcebook, G. H. Heiken, D. T. Vaniman, B. M. French, Eds. (Cambridge Univ. Press, New York, 1991), pp. 367-474, figure 8.3. The inverse correlation between FeO and CaO is principally due to variations in the abundance of anorthite, a Ca-rich and Fe-poor plagioclase. At higher FeO contents where the correlation flattens, the rocks are typically mare basalts, which contain less anorthite but more calcic pyroxenes.
11. R. Lingenfelter, E. H. Canfield, V. E. Hampel, Earth Planet. Sci. Lett. 16, 355 (1972).
12. W. C. Feldman, R. C. Reedy, D. S. McKay, Geophys. Res. Lett. 18, 2157 (1991).
13. D. J. Lawrence et al., Science 281, 1484 (1998).
14. Note added in proof: The fast neutron data suggest that the CSR FeO abundances in South Pole-Aitken basin may be overestimated. If so, then it is likely that Gd and Sm abundances are higher there than we have estimated, and the basin is richer in incompatible elements than we have suggested.
15. This research was partially supported by NASA through a subcontract from Lockheed-Martin Corporation. We thank R. Reedy and D. Vaniman for discussions, P. Spudis and another referee for helpful and thorough reviews, and D. Thomsen for maps of lunar surface features. This work was performed under the auspices of the U.S. Department of Energy.