The evolving chronology of moon formation

LE Borg, RW Carlson - Annual Review of Earth and Planetary …, 2023 - annualreviews.org
Defining the age of the Moon has proven to be an elusive task because it requires reliably
dating lunar samples using radiometric isotopic systems that record fractionation of parent …

Magmatic evolution I: Initial differentiation of the Moon

AM Gaffney, J Gross, LE Borg… - … in Mineralogy and …, 2023 - pubs.geoscienceworld.org
In this chapter, we present and discuss in detail current and novel advances in our
understanding of the processes that drove primordial differentiation of the Moon. This …

[图书][B] Geochronology and thermochronology

PW Reiners, RW Carlson, PR Renne, KM Cooper… - 2017 - books.google.com
This book is a welcome introduction and reference for users and innovators in
geochronology. It provides modern perspectives on the current state-of-the art in most of the …

Chronological evidence that the Moon is either young or did not have a global magma ocean

LE Borg, JN Connelly, M Boyet, RW Carlson - Nature, 2011 - nature.com
Chemical evolution of planetary bodies, ranging from asteroids to the large rocky planets, is
thought to begin with differentiation through solidification of magma oceans many hundreds …

Half-life and initial Solar System abundance of 146Sm determined from the oldest andesitic meteorite

L Fang, P Frossard, M Boyet… - Proceedings of the …, 2022 - National Acad Sciences
The formation and differentiation of planetary bodies are dated using radioactive decay
systems, including the short-lived 146Sm-142Nd (T½= 103 or 68 Ma) and long-lived 147Sm …

A nucleosynthetic origin for the Earth's anomalous 142Nd composition

C Burkhardt, LE Borg, GA Brennecka… - Nature, 2016 - nature.com
A long-standing paradigm assumes that the chemical and isotopic compositions of many
elements in the bulk silicate Earth are the same as in chondrites,,,. However, the accessible …

A review of lunar chronology revealing a preponderance of 4.34–4.37 Ga ages

LE Borg, AM Gaffney… - Meteoritics & Planetary …, 2015 - Wiley Online Library
Abstract 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 …

Origin of the lunar highlands Mg-suite: An integrated petrology, geochemistry, chronology, and remote sensing perspective

CK Shearer, SM Elardo, NE Petro, LE Borg… - American …, 2015 - degruyter.com
The Mg-suite represents an enigmatic episode of lunar highlands magmatism that
presumably represents the first stage of crustal building following primordial differentiation …

Magmatic evolution II: A new view of post-differentiation magmatism

C Shearer, CR Neal, TD Glotch… - … in Mineralogy and …, 2023 - pubs.geoscienceworld.org
Just as the use of new tools revolutionized lunar science in 1610 (Galileo's telescope), 1840
(photography), and 1960s–1970s and 1990s (over 45 robotic and human missions to the …

A tale of two planets: Disparate evolutionary models for Mars inferred from radiogenic isotope compositions of Martian meteorites

LE Borg, TS Kruijer - Proceedings of the National Academy of Sciences, 2025 - pnas.org
The radiogenic isotopic compositions of basaltic Martian meteorites (shergottites) and
clinopyroxene/olivine cumulate meteorites (nakhlite/chassignites) are used to define the …