Globally distributed iridium layer preserved within the Chicxulub impact structure

S Goderis, H Sato, L Ferrière, B Schmitz, D Burney… - Science …, 2021 - science.org
The Cretaceous-Paleogene (K-Pg) mass extinction is marked globally by elevated
concentrations of iridium, emplaced by a hypervelocity impact event 66 million years ago …

A review of the “Black Beauty” Martian regolith breccia and its Martian habitability record

A Goodwin, RJ Garwood, R Tartese - Astrobiology, 2022 - liebertpub.com
The regolith breccia Northwest Africa (NWA) 7034 and paired samples are unique meteorite
representatives of the martian crust. They are water rich, lithologically varied, and preserve …

Earth-like habitable environments in the subsurface of Mars

JD Tarnas, JF Mustard, B Sherwood Lollar… - Astrobiology, 2021 - liebertpub.com
In Earth's deep continental subsurface, where groundwaters are often isolated for> 106 to
109 years, energy released by radionuclides within rock produces oxidants and reductants …

Geologic history of Martian regolith breccia Northwest Africa 7034: Evidence for hydrothermal activity and lithologic diversity in the Martian crust

FM McCubbin, JW Boyce… - Journal of …, 2016 - Wiley Online Library
The timing and mode of deposition for Martian regolith breccia Northwest Africa (NWA) 7034
were determined by combining petrography, shape analysis, and thermochronology. NWA …

Regolith breccia Northwest Africa 7533: Mineralogy and petrology with implications for early Mars

RH Hewins, B Zanda, M Humayun… - … & Planetary Science, 2017 - Wiley Online Library
Abstract Northwest Africa 7533, a polymict Martian breccia, consists of fine‐grained clast‐
laden melt particles and microcrystalline matrix. While both melt and matrix contain medium …

Chronology of martian breccia NWA 7034 and the formation of the martian crustal dichotomy

WS Cassata, BE Cohen, DF Mark, R Trappitsch… - Science …, 2018 - science.org
Martian meteorite Northwest Africa (NWA) 7034 and its paired stones are the only brecciated
regolith samples from Mars with compositions that are representative of the average martian …

Halogen and Cl isotopic systematics in Martian phosphates: Implications for the Cl cycle and surface halogen reservoirs on Mars

JJ Bellucci, MJ Whitehouse, T John… - Earth and Planetary …, 2017 - Elsevier
The Cl isotopic compositions and halogen (Cl, F, Br, and I) abundances in phosphates from
eight Martian meteorites, spanning most rock types and ages currently available, have been …

Sulfur on Mars from the atmosphere to the core

HB Franz, PL King, F Gaillard - Volatiles in the Martian crust, 2019 - Elsevier
Observations of the Martian surface from orbiting spacecraft and in situ landers and rovers,
as well as analyses of Martian meteorites in terrestrial laboratories, have consistently …

Uptake of nickel by synthetic mackinawite

RT Wilkin, DG Beak - Chemical Geology, 2017 - Elsevier
The uptake of aqueous Ni (II) by synthetic mackinawite (FeS) was examined in anaerobic
batch experiments at near-neutral pH (5.2 to 8.4). Initial molar ratios of Ni (II) to FeS ranged …

Rare-earth-element minerals in martian breccia meteorites NWA 7034 and 7533: Implications for fluid–rock interaction in the martian crust

Y Liu, C Ma, JR Beckett, Y Chen, Y Guan - Earth and Planetary Science …, 2016 - Elsevier
Paired martian breccia meteorites, Northwest Africa (NWA) 7034 and 7533, are the first
martian rocks found to contain rare-earth-element (REE) phosphates and silicates. The most …