From peridotite to listvenite – perspectives on the processes, mechanisms and settings of ultramafic mineral carbonation to quartz-magnesite rocks

Earth-Science Reviews, Год журнала: 2024, Номер 255, С. 104828 - 104828

Опубликована: Июнь 13, 2024

Listvenites form by metasomatic transformation of variably serpentinized peridotites to carbonate-quartz rocks due extensive reaction with CO2-bearing aqueous fluids. This sequesters large amounts carbon since listvenites commonly contain >30 wt% CO2. Although volumetrically a rare rock type, they occur in many ophiolites throughout much the geological record, preserved examples from Archean present. are highly interesting because can forearc mantle wedge, modulating deep cycling. They further natural analogues for optimal sequestration mineral carbonation. Here we elucidate influence different controlling variables and feedback mechanisms on listvenite formation, investigate which prerequisites geodynamic settings favorable, discuss related implications cycle engineered CO2 storage Using thermodynamic fluid infiltration-fractionation models that simulate idealized, step-wise carbonation flow-through experiments, quantify expected changes volume, mass, solute transfer (e.g. Mg, Si mobility), redox conditions pH progress dependence protolith composition, infiltrated temperature pressure. The agree well experiments observations high-T but have limitations at low (T ≲ 130–150 °C) where kinetic effects limit approach equilibrium. Our modeling assessment typical concentrations metamorphic/hydrothermal fluids highlight formation requires high time-integrated flux, turn dynamic renewal permeability despite reactive volume expansion. As most known crop out along tectonic contacts between crustal ultramafic delineate major orogenic sutures, key factors supply deviatoric stress deformation. Listvenite microstructures indicate important hydro-mechanical-chemical processes allowing continued flux during brittle fracturing vein reaction-enhanced ductile deformation, local mass redistribution transfer. These critically pathways extent sequestration, not yet understood as challenging reproduce experimentally modeling. source is inferred be metamorphic devolatilization and/or dissolution carbonate ± organic bearing meta-sediments. Less reported or magmatic sources. First-order indicates may direct consequence meta-sediment subduction zones, while their pressure rapid, scale ascent cooling sourced shear fault zones. latter setting reminiscent induced subsurface injection. microstructural chemical record thus provides means feedbacks scales cannot achieved laboratory experiments. Understanding these crucial developing validating strategies

Язык: Английский

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A Review of the Migration of Hydrogen From the Planetary to Basin Scale

Journal of Geophysical Research Solid Earth, Год журнала: 2024, Номер 129(6)

Опубликована: Июнь 1, 2024

Abstract The occurrence of natural hydrogen and its sources have been reviewed extensively in the literature over last few years, with current research across both academia industry focused on assessing feasibility utilizing as an energy resource. However, gaps remain our understanding mechanisms responsible for large‐scale transport migration through deep shallow Earth within geological basins. Due to unique chemical physical properties hydrogen, timescales different areas vary from billions thousands years. Within Earth, diffusive advective are dependent a wide range parameters including structure, microbial activity, subsurface environmental factors. Hydrogen media may occur days hours. We review nature timescale planetary basin‐scale, Earth. explore role accretion setting budget lower mantle, discuss conceptual frameworks primordial or mantle Earth's surface evaluate mantle's potential rocks delivered also advective, fossil versus generative biologically moderated systems Finally, we summarize regions sedimentary

Язык: Английский

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Characterization and quantification of iron species in the banded iron formations (BIFs) in China Craton to explore the potential for H2 production using XRD and Mössbauer spectroscopy

PLoS ONE, Год журнала: 2025, Номер 20(1), С. e0316540 - e0316540

Опубликована: Янв. 24, 2025

Banded iron formations (BIFs), significant ore deposits formed approximately 2.3 billion years ago under low-oxygen conditions, have recently gained attention as potential geological sources for evaluating hydrogen (H₂) production. BIFs are characterized by high concentrations of oxide (20 to 40 wt.%) and low Fe 3 ⁺/Fe tot ratios, representing a major source ferrous on Earth. This study investigates the mineralogical geochemical characteristics samples from Wugang Hengyang in China using X-ray diffraction (XRD) Mössbauer spectroscopy examine H 2 generation potential. XRD analysis microscopic observations showed that magnetite hematite primary minerals Craton. spectroscopic results provided quantified information fractions each species varying minerals. Particularly, 3+ tetrahedral sites octahedral occupied both 2+ were determined. We estimated H₂ production calculating relative fraction total number atoms bulk results. The pyroxene-bearing BIF (P-BIF) contains predominantly (~30.4 wt%), is ~26%. Based values, maximum P-BIF could be ~630 mmol H₂/kg rock. Due variation composition depending types locations occurrence BIF, also varies. For example, contrast Wugang, hematite-rich Hengyang, containing ~6.0 wt% magnetite, significantly lower (~5%), resulting (~120 rock). presents prevalence has considerable due /Fe , suggesting magnetite-rich can effectively utilized stimulated current highlight essential provide database BIFs, which allows us estimate quantity released BIFs.

Язык: Английский

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Mössbauer spectroscopy: a key tool to quantify Fe-speciation and distribution in H2-generating rocks

Applied Geochemistry, Год журнала: 2025, Номер unknown, С. 106399 - 106399

Опубликована: Апрель 1, 2025

Язык: Английский

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Hydrogen Generation and Fracture Development in Organic-Rich Shale via Thermal Treatment

Energy & Fuels, Год журнала: 2025, Номер unknown

Опубликована: Апрель 29, 2025

Язык: Английский

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Magnetic modeling of ophiolites in NW Saudi Arabia for natural hydrogen exploration

Journal of Applied Geophysics, Год журнала: 2025, Номер 240, С. 105765 - 105765

Опубликована: Май 14, 2025

Язык: Английский

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Natural hydrogen resource accumulation in the continental crust

Nature Reviews Earth & Environment, Год журнала: 2025, Номер 6(5), С. 342 - 356

Опубликована: Май 13, 2025

Язык: Английский

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Changes in physical properties of rocks during serpentinization and implications for natural hydrogen exploration

The Leading Edge, Год журнала: 2025, Номер 44(6), С. 479 - 487

Опубликована: Июнь 1, 2025

Serpentinization transforms the physical properties of ultramafic rocks, with significant implications for natural hydrogen exploration. This study compiles and analyzes more than 1000 samples from diverse geologic settings to elucidate relationships between rock — such as density, seismic velocities, elastic moduli, porosity, magnetic susceptibility degree serpentinization. Our findings reveal systematic trends, including marked reductions in density increases porosity susceptibility, which can serve measurable proxies identifying hydrogen-rich source rocks. By establishing robust empirical cross-property relationships, we offer predictive physics tools enhance geophysical exploration reduce interpretation uncertainties Furthermore, this work uses differential effective medium models capture property changes during serpentinization, laying groundwork further modeling. These insights not only improve understanding subsurface systems but also pave way innovative strategies growing field

Язык: Английский

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A Review of the Migration of Hydrogen from the Planetary to Basin Scale

EarthArXiv (California Digital Library), Год журнала: 2024, Номер unknown

Опубликована: Апрель 24, 2024

The occurrence of natural hydrogen and its sources have been reviewed extensively in the literature over last few years, with current research across both academia industry focused on assessing feasibility utilising as an energy resource. However, gaps remain our understanding mechanisms responsible for large-scale transport migration through deep shallow Earth within geological basins. Due to unique chemical physical properties hydrogen, timescales different areas vary from billions thousands years. Within Earth, diffusive advective are dependent a wide range parameters including structure, microbial activity, subsurface environmental factors. Hydrogen media may occur days hours. We review nature timescale planetary basin-scale, Earth. explore role accretion setting budget lower mantle, discuss conceptual frameworks primordial or mantle Earth's surface evaluate mantle's potential rocks delivered also advective, fossil versus generative biologically moderated systems Finally, we summarise regions sedimentary

Язык: Английский

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Evaluating The Natural Hydrogen System in Ampana Basin, Central Sulawesi; An Implication for Natural Hydrogen Exploration in Indonesia

Jurnal Geologi dan Sumberdaya Mineral, Год журнала: 2024, Номер 25(3), С. 135 - 149

Опубликована: Июль 31, 2024

Serpentinisasi dikenal sebagai salah satu proses geologi yang dapat menghasilkan hidrogen alami. Oleh karena itu, daerah dengan distribusi batuan ultramafik mengalami serpentinisasi, seperti lengan timur Pulau Sulawesi, menjadi target menarik untuk eksplorasi Penelitian bertujuan menentukan keberadaan sistem alami di Cekungan Ampana ini dimulai melakukan review literatur dilanjutkan investigasi lapangan pada rembesan gas dianggap mengandung hidrogen. Sejumlah sampel baik maupun diambil dilakukan Analisa laboratorium mencakup petrografi, ICP-MS, komposisi gas, serta isotopnya membuktikan penelitian. Disamping itu interpretasi data seismik dan gravity juga mengetahui konfigurasi bawah permukaan. Hasil studi memberikan gambaran awal mengenai pembentukan, migrasi, akumulasi ditunjukkan oleh kehadiran bukti permukaan berupa Tanjung Api Pulodalagan. Kehadiran dari Ofiolit Sulawesi Timur kaya unsur besi, adanya sesar utama yaitu Sesar Balantak mengakomodasi perkolasi air tanah ke dalam jalur migrasi hidrogen, sedimen pengisi cekungan media Pelajaran diperoleh kemudian digunakan lainnya Indonesia. Kata Kunci: Api, Hidrogen Alami, Timur, Batuan Ultramafik, Serpentinisasi.

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