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The Apollo 15 Lunar Samples: A Preliminary Description

Gast, P. W. and Phinney, W. C. and Duke, M. B. and Silver, L. T. (1972) The Apollo 15 Lunar Samples: A Preliminary Description. Science, 175 (4020). pp. 363-375. ISSN 0036-8075. doi:10.1126/science.175.4020.363.

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Samples returned from the Apollo 15 site consist of mare basalts and breccias with a variety of premare igneous rocks. The mare basalts are from at least two different lava flows. The bulk chemical compositions and textures of these rocks confirm the previous conclusion that the lunar maria consist of a series of extrusive volcanic rocks that are rich in iron and poor in sodium. The breccias contain abundant clasts of anorthositic fragments along with clasts of basaltic rocks much richer in plagioclase than the mare basalts. These two rock types also occur as common components in soil samples from this site. The rocks and soils from both the front and mare region exhibit a variety of shock characteristics that can best be ascribed to ray material from the craters Aristillus or Autolycus.

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Additional Information:© 1972 American Association for the Advancement of Science.
Issue or Number:4020
Record Number:CaltechAUTHORS:20151111-080003517
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Official Citation:The Apollo 15 Lunar Samples: A Preliminary Description Apollo 15 Preliminary Examination Team Science 28 January 1972: 175 (4020), 363-375. [DOI:10.1126/science.175.4020.363]
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:62047
Deposited By: Ruth Sustaita
Deposited On:11 Nov 2015 21:02
Last Modified:10 Nov 2021 22:57

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