Age of the Moon: An Isotopic Study of Uranium-Thorium-Lead Systematics of Lunar Samples

Details Age of the Moon: An Isotopic Study of Uranium-Thorium-Lead Systematics of Lunar Samples Age of the Moon: An Isotopic Study of Uranium-Thorium-Lead Systematics of Lunar Samples

Jan 1970

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1970sci...167..461t&link_type=abstract

Science, Volume 167, Issue 3918, pp. 461-463

Computer Science

7

Scientific paper

Concentrations of U, Th, and Pb in Apollo 11 samples studied are low (U, 0.16 to 0.87; Th, 0.53 to 3.4; Pb, 0.29 to 1.7, in ppm) but the extremely radiogenic lead in samples allows radiometric dating. The fine dust and the breccia have a concordant age of 4.66 billion years on the basis of 207Pb/206Pb, 206Pb/238U, 207Pb/235U, and 208Pb/232Th ratios. This age is comparable with the age of meteorites and with the age generally accepted for the earth. Six crystalline and vesicular samples are distinctly younger than the dust and breccia. The 238U/235U ratio is the same as that in earth rocks, and 234U is in radioactive equilibrium with parent 238U..

Affiliated with

Also associated with

No associations

Rating

Age of the Moon: An Isotopic Study of Uranium-Thorium-Lead Systematics of Lunar Samples does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Age of the Moon: An Isotopic Study of Uranium-Thorium-Lead Systematics of Lunar Samples, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Age of the Moon: An Isotopic Study of Uranium-Thorium-Lead Systematics of Lunar Samples will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1687040