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View article: Iron <scp>XANES</scp> measurements of carbonates and phyllosilicates in <scp>CM</scp> chondrites: A record of redox conditions during aqueous alteration
Iron <span>XANES</span> measurements of carbonates and phyllosilicates in <span>CM</span> chondrites: A record of redox conditions during aqueous alteration Open
Multiple generations of calcite and dolomite precipitated in CM chondrites during ice melting events that led to episodes of liquid water. Models and laboratory analysis have suggested a long‐term transition from oxidizing to reducing cond…
View article: Petrologic characterization of <scp>CO3</scp>.0 chondrites: Implications for <scp><sup>60</sup>Fe</scp>‐<scp><sup>60</sup>Ni</scp> analyses
Petrologic characterization of <span>CO3</span>.0 chondrites: Implications for <span><sup>60</sup>Fe</span>‐<span><sup>60</sup>Ni</span> analyses Open
Samples in which Fe and Ni isotopes have not been disturbed by secondary processing are essential for constraining the initial solar system abundance of short‐lived radionuclide 60 Fe, ( 60 Fe/ 56 Fe) SS . However, Fe‐ and Ni‐enriched vein…
View article: "Outgassing Composition of the Murchison Meteorite: Implications for Volatile Depletion of Planetesimals and Interior-Atmosphere Connections for Terrestrial Exoplanets" Data Repository
"Outgassing Composition of the Murchison Meteorite: Implications for Volatile Depletion of Planetesimals and Interior-Atmosphere Connections for Terrestrial Exoplanets" Data Repository Open
This repository contains the data files, analysis Jupyter notebooks and figures from Thompson et al. 2023 "Outgassing Composition of the Murchison Meteorite: Implications for Volatile Depletion of Planetesimals and Interior-Atmosphere Conn…
View article: "Outgassing Composition of the Murchison Meteorite: Implications for Volatile Depletion of Planetesimals and Interior-Atmosphere Connections for Terrestrial Exoplanets" Data Repository
"Outgassing Composition of the Murchison Meteorite: Implications for Volatile Depletion of Planetesimals and Interior-Atmosphere Connections for Terrestrial Exoplanets" Data Repository Open
This repository contains the data files, analysis Jupyter notebooks and figures from Thompson et al. 2023 "Outgassing Composition of the Murchison Meteorite: Implications for Volatile Depletion of Planetesimals and Interior-Atmosphere Conn…
View article: The Presence and Composition of Mn-rich Chondrule Rims in CO3 Chondrites
The Presence and Composition of Mn-rich Chondrule Rims in CO3 Chondrites Open
Journal Article The Presence and Composition of Mn-rich Chondrule Rims in CO3 Chondrites Get access Jillian Kirk, Jillian Kirk University of California Santa Cruz, Department of Earth and Planetary Science, Santa Cruz, California, USA Corr…
View article: 60Fe-60Ni Systematics of Chondrules from Primitive Chondritic Meteorites
60Fe-60Ni Systematics of Chondrules from Primitive Chondritic Meteorites Open
Journal Article 60Fe-60Ni Systematics of Chondrules from Primitive Chondritic Meteorites Get access Myriam Telus, Myriam Telus University of California Santa Cruz, Department of Earth and Planetary Sciences, Santa Cruz, CA, United States C…
View article: Evidence for multiple early impacts on the H chondrite parent body from electron backscatter diffraction analysis
Evidence for multiple early impacts on the H chondrite parent body from electron backscatter diffraction analysis Open
We examined H4 chondrites Beaver Creek, Forest Vale, Quenggouk, Ste. Marguerite, and Sena with the electron backscatter diffraction (EBSD) techniques of Ruzicka and Hugo (2018) to determine if there is evidence for shock metamorphism consi…
View article: The case and context for atmospheric methane as an exoplanet biosignature
The case and context for atmospheric methane as an exoplanet biosignature Open
Methane has been proposed as an exoplanet biosignature. Imminent observations with the James Webb Space Telescope may enable methane detections on potentially habitable exoplanets, so it is essential to assess in what planetary contexts me…
View article: Carbonaceous Chondrite Outgassing Experiments: Implications for Methane Replenishment on Titan
Carbonaceous Chondrite Outgassing Experiments: Implications for Methane Replenishment on Titan Open
Titan is the only known moon in the Solar System with a substantial atmosphere of N2 and CH4. However, its origin and evolution are not well understood. Titan’s present amount of atmospheric CH4 was predicted to be destroyed photoche…
View article: The Future of Planetary Defense in the Era of Advanced Surveys
The Future of Planetary Defense in the Era of Advanced Surveys Open
International audience
View article: Calcite and dolomite formation in the CM parent body: Insight from in situ C and O isotope analyses
Calcite and dolomite formation in the CM parent body: Insight from in situ C and O isotope analyses Open
To constrain the conditions of aqueous alteration in early planetesimals, we carried out in situ C and O isotope analyses of calcite and dolomite and O isotope analyses of magnetite from the highly altered CM chondrites ALH 83100, ALH 8403…
View article: New Constraints on the Abundance of <sup>60</sup>Fe in the Early Solar System
New Constraints on the Abundance of <sup>60</sup>Fe in the Early Solar System Open
Establishing the abundance of the extinct radionuclide 60 Fe (half-life 2.62 Ma) in the early solar system is important for understanding the astrophysical context of solar system formation. While bulk measurements of early solar system ph…