Results 61 to 70 of about 14,986 (134)

Halogenated Organic Compounds: A Massive Halogen Reservoir and an Intriguing Component of the Marine Dissolved Organic Matter Pool

open access: yesGeophysical Research Letters, Volume 53, Issue 1, 16 January 2026.
Abstract Biogeochemical reactions produce volatile halocarbons and semi‐ to nonvolatile dissolved organic halogens (DOX) in marine systems. The former has a large influence on atmospheric chemistry, but little is known about DOX. Here, we present depth profiles of dissolved organic bromine (DOBr) and ‐iodine (DOI) isolated from the Central North ...
Leanne C. Powers   +3 more
wiley   +1 more source

Signatures of rocky planet engulfment in HAT-P-4. Implications for chemical tagging studies

open access: yes, 2017
Aims. To explore the possible chemical signature of planet formation in the binary system HAT-P-4, by studying abundance vs condensation temperature Tc trends. The star HAT-P-4 hosts a planet detected by transits while its stellar companion does not have
Arancibia, M. Jaque   +5 more
core   +1 more source

Carbonaceous chondrites: Early irradiation and Pu-244 fission records [PDF]

open access: yes
The carbonaceous meteorites were studied. The studies which were conducted have evolved from investigations of early irradiation to mineralogic and petrologic studies of refractory inclusions and to an examination of the time scales of alteration ...
Macdougall, J. D.
core   +1 more source

Oblique impact: A process for providing meteorite samples of other planets [PDF]

open access: yes
Cratering flow calculations for a series of oblique to normal impacts of silicate projectiles onto a silicate halfspace were carried out to determine whether the gas produced upon shock vaporizing both projectile and planetary material could entrain and ...
Ahrens, T. J., Okeefe, J. D.
core   +1 more source

Chemical composition of Earth-like planets

open access: yes, 2015
Models of planet formation are mainly focused on the accretion and dynamical processes of the planets, neglecting their chemical composition. In this work, we calculate the condensation sequence of the different chemical elements for a low-mass ...
Alibert, Y.   +5 more
core  

Microgravity Particle Research on the Space Station [PDF]

open access: yes
Science questions that could be addressed by a Space Station Microgravity Particle Research Facility for studying small suspended particles were discussed. Characteristics of such a facility were determined.
Mckay, Christopher P.   +2 more
core   +1 more source

Fundamentals of Interior Modelling and Challenges in the Interpretation of Observed Rocky Exoplanets. [PDF]

open access: yesSpace Sci Rev
Baumeister P   +9 more
europepmc   +1 more source

Physicochemical Controls on the Compositions of the Earth and Planets. [PDF]

open access: yesSpace Sci Rev
Sossi PA   +4 more
europepmc   +1 more source

Mineralogical evidence for hydrothermal alteration of Bennu samples. [PDF]

open access: yesNat Geosci
Zega TJ   +72 more
europepmc   +1 more source

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