Early formation of the Moon 4.51 billion years ago

Barboni, Mélanie; Boehnke, P.; Keller, C. Brenhin; Kohl, I. E.; Schoene, Blair; Young, Edward; McKeegan, K. D.

doi:10.1126/sciadv.1602365

Sci. Adv.

2017

DOI: 10.1126/sciadv.1602365

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Early formation of the Moon 4.51 billion years ago

Mélanie Barboni

¹

,

P. Boehnke

²

,

C. Brenhin Keller

³

et al.

Abstract: Data on lunar zircons require the formation of the Moon by 4.51 Gy, therefore within the first 60 My of the solar system.

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Cited by 252 publications

(184 citation statements)

References 55 publications

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Mentioning

166

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“…For ITR > 0.05 (0.02), the last GIs occurred after medians of 30–45 (45–55) Myr. Although the Moon-forming timing has large uncertainties (Supplementary Information 1 ), these results are consistent with a < 60-Myr Moon-forming interval based on isotopic systematics 36 and the 45-Myr timing derived from hafnium-tungsten chronometry 37 . After the last GI, overall 30–40% (40–50%) of our Earth analogues accreted less than 1% of their final masses for ITR > 0.05 (0.02), whilst for ITR > 0.10 the results were 20–25%.…”

Section: Resultssupporting

confidence: 78%

Terrestrial planet and asteroid belt formation by Jupiter–Saturn chaotic excitation

Lykawka

¹

,

Itô

²

2023

Sci Rep

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Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

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“…For ITR > 0.05 (0.02), the last GIs occurred after medians of 30–45 (45–55) Myr. Although the Moon-forming timing has large uncertainties (Supplementary Information 1 ), these results are consistent with a < 60-Myr Moon-forming interval based on isotopic systematics 36 and the 45-Myr timing derived from hafnium-tungsten chronometry 37 . After the last GI, overall 30–40% (40–50%) of our Earth analogues accreted less than 1% of their final masses for ITR > 0.05 (0.02), whilst for ITR > 0.10 the results were 20–25%.…”

Section: Resultssupporting

confidence: 78%

Terrestrial planet and asteroid belt formation by Jupiter–Saturn chaotic excitation

Lykawka

¹

,

Itô

²

2023

Sci Rep

Get access via publisher Add to dashboard Cite

Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

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“…Li et al., 2021) but crystallized in a rock distant to the landing area and was transported to the collection site by one or several later impacts. The age of the investigated zircon is consistent with the ages of zircon grains reported in the Apollo samples, which appear to record multiple episodes of magmatic activity before 4,000 Ma (Nemchin et al., 2008) and show an age peak around 4,330–4,350 Ma (Barboni et al., 2024; Borg & Carlson, 2023). This peak is at the lower limit of estimated formation time of some LMO cumulates and coincides with ages determined for several Mg‐suite rocks (Borg & Carlson, 2023; Borg et al., 2015).…”

Section: Discussionsupporting

confidence: 83%

Evidence of 4.3 Ga Mg‐Suite Magmatism in the Western Procellarum KREEP Terrane Provided by Zircon From Chang'e‐5 Regolith

Ding

¹

,

Nemchin

²

,

Wang

³

et al. 2025

JGR Planets

0

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Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

show abstract

“…Based on this analysis, Jacobson et al (2014) estimated the time of the Moon-forming impact to be 95 ± 32 Myr after the formation of the Solar System. This result agrees with the results from isotopic data by Touboul et al (2007, 2009), Halliday (2008), and Barboni et al (2017). By making no preference between the three isotopic analyses or the dynamic simulations as methods to estimate the Moon formation age, we can slide the outer boundary for the emergence of life farther inwards, to 4.416–4.52 Ga.…”

Section: Formation Of the Solar Systemsupporting

confidence: 93%

Constraining the Time Interval for the Origin of Life on Earth

Pearce,

Tupper,

Pudritz

et al. 2018

Get access via publisher Add to dashboard Cite

Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

show abstract

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