Ages of Crystalline Rocks from Fra Mauro
- 24 September 1971
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 173 (4003) , 1235-1236
- https://doi.org/10.1126/science.173.4003.1235
Abstract
Crystallization ages for six rocks from Fra Mauro have been measured by the argon-40-argon-39 method. All six rocks give an age of 3.77 ± 0.15 x 109 years, which is the same as for fragmental rocks from this site. It is concluded that the Imbrium event and the crystallization of a significant portion of the pre-Imbrian basalts were essentially contemporaneous.Keywords
This publication has 7 references indexed in Scilit:
- The argon-40argon-39 method for potassium-argon age determinationPublished by Elsevier ,2003
- 40Ar/39Ar ages from Fra MauroEarth and Planetary Science Letters, 1971
- Argon 40-argon 39 dating: the optimization of irradiation parametersEarth and Planetary Science Letters, 1971
- Potassium-Argon Ages of Lunar Rocks from Mare Tranquillitatis and Oceanus ProcellarumScience, 1970
- RbSr ages from the ocean of stormsEarth and Planetary Science Letters, 1970
- Ages, Irradiation History, and Chemical Composition of Lunar Rocks from the Sea of TranquillityScience, 1970
- Potassium-argon dating by activation with fast neutronsJournal of Geophysical Research, 1966