skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: A review of lunar chronology revealing a preponderance of 4.34-4.37 Ga ages

Journal Article · · Meteoritics and Planetary Science
DOI:https://doi.org/10.1111/maps.12373· OSTI ID:1249132
 [1];  [1];  [2]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. Univ. of New Mexico, Albuquerque, NM (United States)

In this study, data obtained from Sm-Nd and Rb-Sr isotopic measurements of lunar highlands’ samples are renormalized to common standard values and then used to define ages with a common isochron regression algorithm. The reliability of these ages is evaluated using five criteria that include whether: (1) the ages are defined by multiple isotopic systems, (2) the data demonstrate limited scatter outside uncertainty, (3) initial isotopic compositions are consistent with the petrogenesis of the samples, (4) the ages are defined by an isotopic system that is resistant to disturbance by impact metamorphism, and (5) the rare-earth element abundances determined by isotope dilution of bulk of mineral fractions match those measured by in situ analyses. From this analysis, it is apparent that the oldest highlands’ rock ages are some of the least reliable, and that there is little support for crustal ages older than ~4.40 Ga. A model age for ur-KREEP formation calculated using the most reliable Mg-suite Sm-Nd isotopic systematics, in conjunction with Sm-Nd analyses of KREEP basalts, is 4389 ± 45 Ma. This age is a good match to the Lu-Hf model age of 4353 ± 37 Ma determined using a subset of this sample suite, the average model age of 4353 ± 25 Ma determined on mare basalts with the 146Sm-142Nd isotopic system, with a peak in Pb-Pb ages observed in lunar zircons of ~4340 ± 20 Ma, and the oldest terrestrial zircon age of 4374 ± 6 Ma. The preponderance of ages between 4.34 and 4.37 Ga reflect either primordial solidification of a lunar magma ocean or a widespread secondary magmatic event on the lunar nearside. The first scenario is not consistent with the oldest ages reported for lunar zircons, whereas the second scenario does not account for concordance between ages of crustal rocks and mantle reservoirs.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1249132
Report Number(s):
LLNL-JRNL-655538
Journal Information:
Meteoritics and Planetary Science, Vol. 50, Issue 4; ISSN 1086-9379
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 96 works
Citation information provided by
Web of Science

References (76)

Chronology and petrogenesis of the lunar highlands alkali suite: Cumulates from KREEP basalt crystallization journal March 1995
Lu–Hf zircon evidence for rapid lunar differentiation journal March 2009
The isotopic record of lunar volcanism journal June 1992
A young solidification age for the lunar magma ocean journal September 2014
Major lunar crustal terranes: Surface expressions and crust-mantle origins journal February 2000
Thermal history recorded by the Apollo 17 impact melt breccia 73217 journal May 2009
Lunar geochemistry as told by lunar meteorites journal October 2005
Asymmetric crustal growth on the Moon indicated by primitive farside highland materials journal April 2012
Super-chondritic Sm/Nd ratios in Mars, the Earth and the Moon journal March 2008
SmNd constraints on early lunar differentiation and the evolution of KREEP journal October 1979
SIMS U–Pb study of zircon from Apollo 14 and 17 breccias: Implications for the evolution of lunar KREEP journal January 2008
A combined Sm–Nd, Rb–Sr, and U–Pb isotopic study of Mg-suite norite 78238: Further evidence for early differentiation of the Moon journal January 2009
Thermal and Magmatic Evolution of the Moon book December 2006
Early crustal building processes on the moon: Models for the petrogenesis of the magnesian suite journal July 2005
Rapid accretion and early differentiation of Mars indicated by 142Nd/144Nd in SNC meteorites journal January 1995
Isotopic evidence for a terminal lunar cataclysm journal April 1974
60025: relict of primitive lunar crust? journal June 1987
The early differentiation history of Mars from 182W-142Nd isotope systematics in the SNC meteorites journal September 2005
A new view of lunar ferroan anorthosites: Postmagma ocean petrogenesis journal January 2003
Neodymium Isotope Evidence for a Chondritic Composition of the Moon journal June 2006
Constraints on Martian differentiation processes from RbSr and SmNd isotopic analyses of the basaltic shergottite QUE 94201 journal November 1997
Chronology, geochemistry, and petrology of a ferroan noritic anorthosite clast from Descartes breccia 67215: Clues to the age, origin, structure, and impact history of the lunar crust journal April 2003
Age and isotopic relationships among the angrites Lewis Cliff 86010 and Angra dos Reis journal April 1992
Isotopic studies of ferroan anorthosite 62236: a young lunar crustal rock from a light rare-earth-element-depleted source journal October 1999
Lunar Ferroan Anorthosite Petrogenesis: Clues from Trace Element Distributions in FAN Subgroups journal April 1998
Sm-Nd age of lherzolite 67667: implications for the processes involved in lunar crustal formation journal December 1981
Time and duration of lunar highlands crust formation journal February 1981
Chronological evidence that the Moon is either young or did not have a global magma ocean journal August 2011
Oxygen isotopic signature of 4.4–3.9Ga zircons as a monitor of differentiation processes on the Moon journal April 2006
The comparative behavior of apatite-zircon U-Pb systems in Apollo 14 breccias: Implications for the thermal history of the Fra Mauro Formation journal November 2009
Lunar meteorites: new insights into the geological history of the Moon journal July 2013
Rb-Sr, Sm-Nd and Lu-Hf isotope systematics of the lunar Mg-suite: the age of the lunar crust and its relation to the time of Moon formation
  • Carlson, Richard W.; Borg, Lars E.; Gaffney, Amy M.
  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 372, Issue 2024 https://doi.org/10.1098/rsta.2013.0246
journal September 2014
Hf-W Chronometry of Lunar Metals and the Age and Early Differentiation of the Moon journal December 2005
Coupled 142Nd–143Nd evidence for a protracted magma ocean in Mars journal November 2007
The lunar neutron flux revisited journal November 1972
Timing of crystallization of the lunar magma ocean constrained by the oldest zircon journal January 2009
Least-Squares Fitting of a Straight line journal May 1966
A highly depleted moon or a non-magma ocean origin for the lunar crust? journal October 2007
Ion and electron microprobe study of troctolites, norite, and anorthosites from Apollo 14: evidence for urKREEP assimilation during petrogenesis of Apollo 14 Mg-suite rocks journal September 1998
Lunar feldspathic meteorites: Constraints on the geology of the lunar highlands, and the origin of the lunar crust journal February 2014
Precise determination of initial ϵNd from Sm-Nd isochron data journal October 1982
Constraints on the formation age and evolution of the Moon from 142Nd–143Nd systematics of Apollo 12 basalts journal June 2014
A new model of lunar crust: asymmetry in crustal composition and evolution journal April 2008
Hadean age for a post-magma-ocean zircon confirmed by atom-probe tomography journal February 2014
Complex magmatic and impact history prior to 4.1Ga recorded in zircon from Apollo 17 South Massif aphanitic breccia 73235 journal April 2011
Magnesian anorthosites and a deep crustal rock from the farside crust of the moon journal July 2006
Complex history of a zircon aggregate from lunar breccia 73235 journal March 2007
The age of ferroan anorthosite 60025: oldest crust on a young Moon? journal October 1988
The lunar magma ocean: Reconciling the solidification process with lunar petrology and geochronology journal April 2011
Isotopic evidence for chondritic Lu/Hf and Sm/Nd of the Moon journal October 2013
The “Procellarum KREEP Terrane”: Implications for mare volcanism and lunar evolution journal August 2000
Non-nucleosynthetic heterogeneity in non-radiogenic stable Hf isotopes: implications for early solar system chronology text January 2010
Ion microprobe investigation of plagioclase and orthopyroxene from lunar Mg-suite norites: Implications for calculating parental melt REE concentrations and for assessing postcrystallization REE redistribution journal October 1996
Evolution of the lunar crust: SIMS study of plagioclase from ferroan anorthosites journal June 1997
Age of the eucrite “Caldera” from convergence of long-lived and short-lived chronometers journal December 1996
Least-squares fitting of a straight line journal August 1968
146Sm-142Nd formation interval for the lunar mantle journal July 1995
Lunar neutron stratigraphy journal June 1972
The Constitution and Structure of the Lunar Interior book December 2006
The origin of KREEP journal January 1979
Rb-Sr ages of clasts from within Boulder 1, Station 2, Apollo 17 journal January 1975
Satellite-sized planetesimals and lunar origin journal April 1975
Uranium-lead ages for lunar zircons: Evidence for a prolonged period of granophyre formation from 4.32 to 3.88 Ga journal May 1996
An ancient Sm-Nd age for a ferroan noritic anorthosite clast from lunar breccia 67016 journal July 1994
Non-nucleosynthetic heterogeneity in non-radiogenic stable Hf isotopes: Implications for early solar system chronology journal June 2010
Feldspathic lunar meteorites and their implications for compositional remote sensing of the lunar surface and the composition of the lunar crust journal December 2003
Feldspathic clasts in Yamato-86032: Remnants of the lunar crust with implications for its formation and impact history journal December 2006
Ages of pristine noritic clasts from lunar breccias 15445 and 15455 journal February 1993
A chemical model for generating the sources of mare basalts: Combined equilibrium and fractional crystallization of the lunar magmasphere journal October 1992
Compositional and lithological diversity among brecciated lunar meteorites of intermediate iron concentration journal September 2009
Sm-Nd isotopic evolution of chondrites journal October 1980
The age of Dar al Gani 476 and the differentiation history of the martian meteorites inferred from their radiogenic isotopic systematics journal September 2003
Neodymium, strontium and chromium isotopic studies of the LEW86010 and Angra dos Reis meteorites and the chronology of the angrite parent body journal November 1994
Mechanisms for incompatible-element enrichment on the Moon deduced from the lunar basaltic meteorite Northwest Africa 032 journal July 2009
Re-evaluating 142Nd/144Nd in lunar mare basalts with implications for the early evolution and bulk Sm/Nd of the Moon journal October 2009
Thermal Aspects of a Lunar Origin by Giant Impact book November 2000

Cited By (10)

Effect of Re-Impacting Debris on the Solidification of the Lunar Magma Ocean posted_content January 2018
Analysis of lunar samples: Implications for planet formation and evolution journal July 2019
Effect of Reimpacting Debris on the Solidification of the Lunar Magma Ocean journal May 2018
Early Moon formation inferred from hafnium–tungsten systematics journal July 2019
Onset of Giant Planet Migration before 4480 Million Years Ago journal August 2019
Effect of Re-impacting Debris on the Solidification of the Lunar Magma Ocean text January 2018
Illusory Late Heavy Bombardments journal September 2016
Distribution of Radioactive Heat Sources and Thermal History of the Moon journal December 2018
Investigating the shock histories of lunar meteorites Miller Range 090034, 090070, and 090075 using petrography, geochemistry, and micro-FTIR spectroscopy journal May 2017
Lunar Cumulate Mantle Overturn: A Model Constrained by Ilmenite Rheology journal May 2019

Similar Records

Chronology of alkali anorthosite 14304 clast “b” records basin forming impact at ~3.95 Ga
Journal Article · Wed Aug 09 00:00:00 EDT 2023 · Geochimica et Cosmochimica Acta · OSTI ID:1249132

A combined Sm-Nd, Rb-Sr, and U-Pb isotopic study of Mg-suite norite 78238: Further evidence for early differentiation of the Moon
Journal Article · Mon Nov 17 00:00:00 EST 2008 · Geochimica et Cosmochemica acta, vol. 73, N/A, January 15, 2009, pp. 514-527 · OSTI ID:1249132

Chronologic implications for slow cooling of troctolite 76535 and temporal relationships between the Mg-suite and the ferroan anorthosite suite
Journal Article · Wed Mar 15 00:00:00 EDT 2017 · Geochimica et Cosmochimica Acta · OSTI ID:1249132