Results 41 to 50 of about 3,735 (197)

The Iso2k database: a global compilation of paleo-δ18O and δ2H records to aid understanding of Common Era climate [PDF]

open access: yesEarth System Science Data, 2020
Reconstructions of global hydroclimate during the Common Era (CE; the past ∼2000 years) are important for providing context for current and future global environmental change.
B. L. Konecky   +33 more
doaj   +1 more source

Sedimentary reservoir oxidation during geologic CO2 sequestration [PDF]

open access: yes, 2015
Injection of carbon dioxide into subsurface geologic reservoirs during geologic carbon sequestration (GCS) introduces an oxidizing supercritical CO2 phase into a subsurface geologic environment that is typically reducing.
Thomas, Randal B   +6 more
core   +1 more source

Perspective: Microbial hydrogen metabolism in rock-hosted ecosystems

open access: yesFrontiers in Energy Research
Hydrogen (H2) is among the most common and widely utilized electron donors in microbial metabolism. This is particularly true for microorganisms that inhabit subsurface environments where H2 concentrations can be high due to H2 generation via one or more
Eric S. Boyd   +2 more
doaj   +1 more source

Finding geologic hydrogen generation in UAE ophiolites: insights from MT phase tensor mapping of serpentinization

open access: yesDiscover Applied Sciences
Geologic hydrogen is emerging as a primary energy source, drawing growing interest from the scientific community and the energy sector. One of the primary geochemical mechanisms for natural hydrogen generation is serpentinization, which is the hydration ...
Biruk Abera Cherkose   +2 more
doaj   +1 more source

Experimental Study: The Effect of Pore Shape, Geometrical Heterogeneity, and Flow Rate on the Repetitive Two-Phase Fluid Transport in Microfluidic Porous Media

open access: yesMicromachines, 2023
Geologic subsurface energy storage, such as porous-media compressed-air energy storage (PM-CAES) and underground hydrogen storage (UHS), involves the multi-phase fluid transport in structurally disordered or heterogeneous porous media (e.g., soils and ...
Seunghee Kim, Jingtao Zhang, Sangjin Ryu
doaj   +1 more source

Hydrogen bonds at silica–CO2 saturated water interface under geologic sequestration conditions

open access: yes, 2016
To investigate the effects of sequestration condition on hydrogen bonds between mineral and water, molecular dynamics simulations have been performed. The simulations were conducted at conditions related with geologic sequestration sites: pressure (3.1 ...
Ning Zhang (23771)   +3 more
core   +1 more source

Does the United Kingdom have sufficient geological storage capacity to support a hydrogen economy? Estimating the salt cavern storage potential of bedded halite formations [PDF]

open access: yes, 2022
Hydrogen can be used to enable decarbonisation of challenging applications such as provision of heat, and as a fuel for heavy transport. The UK has set out a strategy for developing a new low carbon hydrogen sector by 2030.
Vosper, Hayley   +8 more
core   +1 more source

The distribution of volatile elements during rocky planet formation

open access: yesFrontiers in Earth Science, 2023
Core segregation and atmosphere formation are two of the major processes that redistribute the volatile elements—hydrogen (H), carbon (C), nitrogen (N), and sulfur (S)—in and around rocky planets during their formation.
Terry-Ann Suer   +5 more
doaj   +1 more source

Geologic controls of hydrogen isotope ratios of structural water in serpentinites from San Pedro Limon-Palmar Chico, Tierra Caliente Terrane, Mexico

open access: yesGeofísica Internacional, 1993
El área de San Pedro Limón-Palmar Chico geológicamente se encuentra en el Complejo Tierra Caliente que en esta porción está formado por una secuencia volcanosedimentaria de arco de islas del Albiano-Cenomaniano.
L. A. Delgado-Argote   +4 more
doaj   +1 more source

Technical and Economic Feasibility Analysis of Underground Hydrogen Storage: A Case Study in Intermountain-West Region USA

open access: yes, 2022
Hydrogen is an integral component of the current energy transition roadmap to decarbonize the economy and create an environmentally-sustainable future. However, surface storage options (e.g., tanks) do not provide the required capacity or durability to ...
Chen, Bailian   +5 more
core  

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