Refined thorium abundances for lunar red spots: Implications for evolved, nonmare volcanism on the Moon
作者： J. J. Hagerty , D. J. Lawrence , B. R. Hawke , D. T. Vaniman , R. C. Elphic
DOI: 10.1029/2005JE002592
关键词:
摘要: [1] We have used improved knowledge of the spatial distribution thorium (Th) on lunar surface, in conjunction with a forward modeling analysis Lunar Prospector gamma ray data, to estimate abundances red spots. The results from this study can be combined preexisting compositional and morphologic evidence suggest that Hansteen Alpha, Gruithuisen domes, Lassell massif are silicic, nonmare, volcanic constructs, similar nature terrestrial rhyolite domes. We propose either silicate liquid immiscibility or, more likely, basaltic underplating could produced Thus data presented provide new information about full range crustal processes occurred Moon.
agu.org参考文章(88)
D. T. Vaniman, W. C. Feldman, B. R. Hawke, R. C. Elphic, T. H. Prettyman, D. J. Lawrence, Revisiting the Interpretation of Thorium Abundances at Hansteen Alpha LPI. pp. 1727- ,(2004)
B. L. Jolliff, L. A. Haskin, R. L. Korotev, Geochemistry of 2-4-mm particles from Apollo 14 soil (14161) and implications regarding igneous components and soil-forming processes LPSC. ,vol. 21, pp. 193- 219 ,(1991)
H. E. Newsom, G. J. Taylor, K. Keil, S. R. Garcia, R. W. Morris, Highly evolved and ultramafic lithologies from Apollo 14 soils Lunar and Planetary Science Conference Proceedings. ,vol. 20, pp. 61- ,(1990)
R. D. Warner, R. A. Schmitt, G. J. Taylor, K. Keil, M.-S. Ma, Silicate liquid immiscibility, evolved lunar rocks and the formation of KREEP Lunar Highlands Crust. pp. 339- ,(1980)
L. A. Taylor, C. R. Neal, The nature and barium partitioning between immiscible melts - A comparison of experimental and natural systems with reference to lunar granite petrogenesis LPSC. ,vol. 19, pp. 209- 218 ,(1989)
J. G. Hammarstrom, O. B. James, Petrology of Four Clasts from Consortium Breccia 73215 Lunar and Planetary Science Conference Proceedings. ,vol. 2, pp. 2459- 2494 ,(1977)
Paul C. Hess, Origins of Igneous Rocks ,(1989)
G. L. Nord, O. B. James, Consortium breccia 73255: Thermal and deformational history of bulk breccia and clasts, as determined by electron petrography. LPSC. ,vol. 1, pp. 821- 839 ,(1978)
Geologic map of the Aristarchus region of the Moon U.S. Geological Survey Report. pp. 465- ,(1965) , 10.3133/I465
D. J. Lawrence, G. J. Taylor, P. G. Lucey, B. R. Hawke, P. D. Spudis, G. A. Smith, Remote Sensing Studies of Selected Spectral Anomalies on the Moon LPI. pp. 1241- ,(2001)