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Record Details

Record 16 of 597
Radionuclides at Descartes in the central highlands
Author and Affiliation:
Wrigley, R. C.(NASA Ames Research Center, Moffett Field, Calif., United States)
Abstract: Throium, uranium, potassium, aluminium-26, and sodium-22 were measured by nondestructive gamma ray spectrometry in six soil and two rock samples gathered by Apollo 16 in the lunar central highlands. The soil samples probably include both major geologic formations in the vicinity, the Cayley and Descartes Formations, although it is possible that the Descartes Formation is not represented. The rock samples have low concentrations of primordial radionuclides. The Al concentrations were lower than could be expected from the high abundance of alumina in the Apollo 16 soils reported earlier, but this could be due to lower concentrations of target elements in these soils, sampling depth variations, or regolithic mixing (exposure age variations).
Publication Date: Jan 01, 1973
Document ID:
19740040201
(Acquired Dec 04, 1995)
Accession Number: 74A22951
Subject Category: SPACE SCIENCES
Document Type: Conference Proceedings
Publication Information: (SEE A74-22805 09-30)
Publisher Information: United States
Meeting Information: Lunar Science Conference; 4th; March 5-8, 1973; Houston, TX
Financial Sponsor: NASA; United States
Description: 6p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: ABUNDANCE; APOLLO 16 FLIGHT; LUNAR ROCKS; LUNAR SOIL; RADIOACTIVE ISOTOPES; ALUMINUM ISOTOPES; BRECCIA; FINES; GAMMA RAYS; HIGHLANDS; THORIUM; URANIUM
Imprint And Other Notes: In: Lunar Science Conference, 4th, Houston, Tex., March 5-8, 1973, Proceedings. Volume 2. (A74-22805 09-30) New York, Pergamon Press, Inc., 1973, p. 2203-2208.
Availability Source: Other Sources
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