Searching for biosignatures in sedimentary rocks from early Earth and Mars
The recognition of past habitable environments on Mars has increased the urgency to
understand biosignature preservation in and characterize analogues of these environments …
understand biosignature preservation in and characterize analogues of these environments …
The hydrochemical evolution of alkaline volcanic lakes: a model to understand the South Atlantic Pre-salt mineral assemblages
R Mercedes-Martín, C Ayora, J Tritlla… - Earth-Science …, 2019 - Elsevier
Understand the origin of the exotic strontium-rich calcite/magnesium-rich clay/silica deposits
formed during the Early Cretaceous in the South Atlantic Pre-salt lakes is challenging our …
formed during the Early Cretaceous in the South Atlantic Pre-salt lakes is challenging our …
Natural hydrogen migration along thrust faults in foothill basins: The North Pyrenean Frontal Thrust case study
The existence of geological fluids rich in natural hydrogen (H 2) raises the question about
the energy potential of this carbon-free resource. However, to date there is no exploration …
the energy potential of this carbon-free resource. However, to date there is no exploration …
Modern water/rock reactions in Oman hyperalkaline peridotite aquifers and implications for microbial habitability
Abstract The Samail ophiolite in Oman is undergoing modern hydration and carbonation of
peridotite and may host a deep subsurface biosphere. Previous investigations of …
peridotite and may host a deep subsurface biosphere. Previous investigations of …
Characterization of hyperalkaline fluids produced by low‐temperature serpentinization of mantle peridotites in the Oman and Ligurian ophiolites
A regional survey of alkaline springs in Oman and Ligurian ophiolites shows that the
alkaline water compositions significantly vary from one ophiolite to the other and within the …
alkaline water compositions significantly vary from one ophiolite to the other and within the …
Precipitation of CaCO3 Polymorphs from Aqueous Solutions: The Role of pH and Sulphate Groups
I Cuesta Mayorga, JM Astilleros, L Fernández-Díaz - Minerals, 2019 - mdpi.com
In this work, we aimed to experimentally study the nucleation and growth of CaCO3 phases
precipitated from supersaturated aqueous solutions in the presence of varying …
precipitated from supersaturated aqueous solutions in the presence of varying …
Controls on the stable isotope compositions of travertine from hyperalkaline springs in Oman: Insights from clumped isotope measurements
Carbonate formation at hyperalkaline springs is typical of serpentinization in peridotite
massifs worldwide. These travertines have long been known to exhibit large variations in …
massifs worldwide. These travertines have long been known to exhibit large variations in …
[PDF][PDF] Thermodynamic constraints on the geochemistry of low-temperature, continental, serpentinization-generated fluids
The hydrous alteration of ultramafic rocks, known as serpentinization, generates fluids that
can fuel microbial communities and enable the synthesis of simple organic compounds …
can fuel microbial communities and enable the synthesis of simple organic compounds …
Aqueous geochemical and microbial variation across discrete depth intervals in a peridotite aquifer assessed using a packer system in the Samail Ophiolite, Oman
The potential for molecular hydrogen () generated via serpentinization to fuel subsurface
microbial ecosystems independent from photosynthesis has prompted biogeochemical …
microbial ecosystems independent from photosynthesis has prompted biogeochemical …
Initial results from the Oman drilling project multi‐borehole observatory: Petrogenesis and ongoing alteration of mantle peridotite in the weathering horizon
PB Kelemen, JA Leong… - Journal of …, 2021 - Wiley Online Library
Abstract The Oman Drilling Project “Multi‐Borehole Observatory”(MBO) samples an area of
active weathering of tectonically exposed peridotite. This article reviews the geology of the …
active weathering of tectonically exposed peridotite. This article reviews the geology of the …