Abiotic methane in continental ultramafic rock systems: Towards a genetic model

G Etiope, MJ Whiticar - Applied Geochemistry, 2019 - Elsevier
Abstract Methane (CH 4), often in substantial quantities, is reported for numerous surface
manifestations (seeps, springs) and aquifers in continental serpentinized ultramafic rocks, in …

Formation and loss of metastable brucite: does Fe (II)-bearing brucite support microbial activity in serpentinizing ecosystems?

AS Templeton, ET Ellison - Philosophical Transactions of …, 2020 - royalsocietypublishing.org
Ultramafic rocks undergo successive stages of hydration and oxidation during water/rock
interaction, giving rise to secondary minerals such as brucite, serpentine, magnetite and the …

Deep-branching acetogens in serpentinized subsurface fluids of Oman

DR Colman, EA Kraus, PH Thieringer… - Proceedings of the …, 2022 - National Acad Sciences
Little is known of acetogens in contemporary serpentinizing systems, despite widely
supported theories that serpentinite-hosted environments supported the first life on Earth via …

Biodegradation of polyvinyl chloride plastic films by enriched anaerobic marine consortia

L Giacomucci, N Raddadi, M Soccio, N Lotti… - Marine environmental …, 2020 - Elsevier
Plastics remarkably contribute to marine litter, which is raising serious concerns. Currently,
little is known about the fate of most plastics entering the marine environment and their …

Geological and geochemical controls on subsurface microbial life in the Samail Ophiolite, Oman

KR Rempfert, HM Miller, N Bompard, D Nothaft… - Frontiers in …, 2017 - frontiersin.org
Microbial abundance and diversity in deep subsurface environments is dependent upon the
availability of energy and carbon. However, supplies of oxidants and reductants capable of …

The potential science and engineering value of samples delivered to Earth by Mars sample return: International MSR Objectives and Samples Team (iMOST)

DW Beaty, MM Grady, HY McSween… - … & Planetary Science, 2019 - Wiley Online Library
Return of samples from the surface of Mars has been a goal of the international Mars
science community for many years. Affirmation by NASA and ESA of the importance of Mars …

Reduced gas seepages in ophiolitic complexes: Evidences for multiple origins of the H2-CH4-N2 gas mixtures

C Vacquand, E Deville, V Beaumont, F Guyot… - … et Cosmochimica Acta, 2018 - Elsevier
This paper proposes a comparative study of reduced gas seepages occurring in ultrabasic
to basic rocks outcropping in ophiolitic complexes based on the study of seepages from …

A window into the abiotic carbon cycle–Acetate and formate in fracture waters in 2.7 billion year-old host rocks of the Canadian Shield

BS Lollar, VB Heuer, J McDermott, S Tille… - … et Cosmochimica Acta, 2021 - Elsevier
The recent expansion of studies at hydrothermal submarine vents from investigation of
abiotic methane formation to include abiotic production of organics such acetate and …

Diversification of methanogens into hyperalkaline serpentinizing environments through adaptations to minimize oxidant limitation

EM Fones, DR Colman, EA Kraus… - The ISME …, 2021 - academic.oup.com
Metagenome assembled genomes (MAGs) and single amplified genomes (SAGs) affiliated
with two distinct Methanobacterium lineages were recovered from subsurface fracture …

A self-sustaining serpentinization mega-engine feeds the fougerite nanoengines implicated in the emergence of guided metabolism

MJ Russell - Frontiers in Microbiology, 2023 - frontiersin.org
The demonstration by Ivan Barnes et al. that the serpentinization of fresh Alpine-type
ultramafic rocks results in the exhalation of hot alkaline fluids is foundational to the …