Serpentinization as the source of energy, electrons, organics, catalysts, nutrients and pH gradients for the origin of LUCA and life

L Schwander, M Brabender, N Mrnjavac… - Frontiers in …, 2023 - frontiersin.org
Serpentinization in hydrothermal vents is central to some autotrophic theories for the origin
of life because it generates compartments, reductants, catalysts and gradients. During the …

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 …

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 …

Chemical and isotopic analyses of hydrocarbon-bearing fluid inclusions in olivine-rich rocks

NG Grozeva, F Klein… - … Transactions of the …, 2020 - royalsocietypublishing.org
We examined the mineralogical, chemical and isotopic compositions of secondary fluid
inclusions in olivine-rich rocks from two active serpentinization systems: the Von Damm …

Accessing the subsurface biosphere within rocks undergoing active low‐temperature serpentinization in the Samail ophiolite (Oman Drilling Project)

AS Templeton, ET Ellison, C Glombitza… - Journal of …, 2021 - Wiley Online Library
Abstract The Oman Drilling Project established an “Active Alteration” multi‐borehole
observatory in peridotites undergoing low‐temperature serpentinization in the Samail …

Microbial ecology of the newly discovered serpentinite-hosted Old City hydrothermal field (southwest Indian ridge)

A Lecoeuvre, B Ménez, M Cannat… - The ISME …, 2021 - academic.oup.com
Abstract Lost City (mid-Atlantic ridge) is a unique oceanic hydrothermal field where
carbonate-brucite chimneys are colonized by a single phylotype of archaeal …

[PDF][PDF] Thermodynamic constraints on the geochemistry of low-temperature, continental, serpentinization-generated fluids

JAM Leong, EL Shock - American Journal of Science, 2020 - ajsonline.org
The hydrous alteration of ultramafic rocks, known as serpentinization, generates fluids that
can fuel microbial communities and enable the synthesis of simple organic compounds …

[HTML][HTML] Metagenomic identification of active methanogens and methanotrophs in serpentinite springs of the Voltri Massif, Italy

WJ Brazelton, CN Thornton, A Hyer, KI Twing… - PeerJ, 2017 - peerj.com
The production of hydrogen and methane by geochemical reactions associated with the
serpentinization of ultramafic rocks can potentially support subsurface microbial ecosystems …

Unusual metabolic diversity of hyperalkaliphilic microbial communities associated with subterranean serpentinization at The Cedars

S Suzuki, S Ishii, T Hoshino, A Rietze… - The ISME …, 2017 - academic.oup.com
Abstract Water from The Cedars springs that discharge from serpentinized ultramafic rocks
feature highly basic (pH=~ 12), highly reducing (E h<− 550 mV) conditions with low ionic …

Methane dynamics in a tropical serpentinizing environment: the Santa Elena Ophiolite, Costa Rica

M Crespo-Medina, KI Twing… - Frontiers in …, 2017 - frontiersin.org
Uplifted ultramafic rocks represent an important vector for the transfer of carbon and
reducing power from the deep subsurface into the biosphere and potentially support …