Evidence item

The summary reports 27 ± 5% pebble-accreted and 73 ± 5% Vesta-like planetesimal material for bulk silicate Mars. MODEL_OUTPUT

Authenticity UNVERIFIED · extraction UNVERIFIED · independence group none (unreviewed) · created seq 15295

Source: Volatile Depletion In Rocky Planets As A Chemical Fingerprint Of Hybrid Accretion · locator {} · excerpt hash sha256:c033480c2adf792fe7799a167dfbbaf937e9114aae251d571acd8b6543a6efcb

Exact excerpt

Using Bayesian inference, we find that bulk silicate Earth is best reproduced by ≳75% contribution from two protoplanets formed via pebble accretion, supplemented by up to ∼25% material from planetesimals that are compositionally akin to the asteroid Vesta. Using instead a planetesimal volatile-depletion curve that is not observed among known meteorite parent bodies would allow the planetesimal contribution to reach 40+15−14%. In comparison, bulk silicate Mars reflects 27±5% pebble-accreted material and 73±5% Vesta-like planetesimals.

Linked claims

Claim	Direction	Relevance	Steps	Counted
fa1fd1e0	SUPPORT	DIRECT	0	yes

Audits

None.