Was there land on the early Earth?

J Korenaga - Life, 2021 - mdpi.com
The presence of exposed land on the early Earth is a prerequisite for a certain type of
prebiotic chemical evolution in which the oscillating activity of water, driven by short-term …

Aqueous microdroplets enable abiotic synthesis and chain extension of unique peptide isomers from free amino acids

DT Holden, NM Morato… - Proceedings of the …, 2022 - National Acad Sciences
Amide bond formation, the essential condensation reaction underlying peptide synthesis, is
hindered in aqueous systems by the thermodynamic constraints associated with …

From stars to diverse mantles, melts, crusts, and atmospheres of rocky exoplanets

CM Guimond, H Wang, F Seidler… - … in Mineralogy and …, 2024 - pubs.geoscienceworld.org
The advent of radial velocity (RV) and transit photometry method has resulted in the
detection of more than 5000 exoplanets since 1995. Of these detected planets, a significant …

Marine phosphate availability and the chemical origins of life on Earth

MP Brady, R Tostevin, NJ Tosca - Nature Communications, 2022 - nature.com
Prebiotic systems chemistry suggests that high phosphate concentrations were necessary to
synthesise molecular building blocks and sustain primitive cellular systems. However …

On the paragenetic modes of minerals: A mineral evolution perspective

RM Hazen, SM Morrison - American Mineralogist, 2022 - degruyter.com
A systematic survey of 57 different paragenetic modes distributed among 5659 mineral
species reveals patterns in the diversity and distribution of minerals related to their evolving …

Plate motion and a dipolar geomagnetic field at 3.25 Ga

AR Brenner, RR Fu… - Proceedings of the …, 2022 - National Acad Sciences
The paleomagnetic record is an archive of Earth's geophysical history, informing
reconstructions of ancient plate motions and probing the core via the geodynamo. We report …

How did the continental crust form: No basalt, no water, no granite

N Arndt - Precambrian Research, 2023 - Elsevier
The process that generated the continental crust has long been debated. One school argues
that, through most of geological time, the crust formed at convergent margins like most …

A framework for the origin and deep cycles of volatiles in rocky exoplanets

R Dasgupta, D Pathak… - Reviews in Mineralogy …, 2024 - pubs.geoscienceworld.org
Since the first discovery of planets in another solar system of our galaxy in the early 90s and
the discovery of 51 Pegassi b, a Jovian-type planet around a Sun-like star in 1995 (Mayor …

Large impacts onto the early Earth: Planetary sterilization and iron delivery

RI Citron, ST Stewart - The Planetary Science Journal, 2022 - iopscience.iop.org
Late accretion onto the Hadean Earth included large impacts that could have influenced
early habitability, either by sterilizing the planet or alternatively catalyzing the origin of life by …

[HTML][HTML] Hydrous silicate melts and the deep mantle H2O cycle

JWE Drewitt, MJ Walter, JP Brodholt, JMR Muir… - Earth and planetary …, 2022 - Elsevier
We report ab initio atomistic simulations of hydrous silicate melts under deep upper mantle
to shallow lower mantle conditions and use them to parameterise density and viscosity …