Molecular hydrogen in surface and subsurface natural gases: Abundance, origins and ideas for deliberate exploration

AV Milkov - Earth-Science Reviews, 2022 - Elsevier
Geologic molecular hydrogen (H 2) occurs in the subsurface and vents and seeps at the
surface. However, this valuable natural resource is under-utilized in the economy because …

[หนังสือ][B] Stable isotope geochemistry

J Hoefs, J Hoefs - 2009 - Springer
The nine editions of Stable Isotope Geochemistry have appeared over a time span of nearly
50 years. The first edition (1973) appeared as a slim book of 135 pages. Due to the rapid …

Deciphering a mantle degassing transect related with India-Asia continental convergence from the perspective of volatile origin and outgassing

M Zhang, S Xu, X Zhou, A Caracausi, Y Sano… - … et Cosmochimica Acta, 2021 - Elsevier
Mantle degassing transect across different tectonic units within a plate convergent setting
has been well documented for oceanic convergent margins by systematic changes in …

Cellular remains in a~ 3.42-billion-year-old subseafloor hydrothermal environment

B Cavalazzi, L Lemelle, A Simionovici, SL Cady… - Science …, 2021 - science.org
Subsurface habitats on Earth host an extensive extant biosphere and likely provided one of
Earth's earliest microbial habitats. Although the site of life's emergence continues to be …

Abiotic synthesis of methane and organic compounds in Earth's lithosphere

EP Reeves, J Fiebig - Elements: An International …, 2020 - pubs.geoscienceworld.org
Accumulation of molecular hydrogen in geologic systems can create conditions
energetically favorable to transform inorganic carbon into methane and other organic …

Validity of geochemical signatures of abiotic hydrocarbon gases on Earth

X **a, Y Gao - Journal of the Geological Society, 2022 - lyellcollection.org
Abiotic synthesis has been hypothesized as a mechanism for occurrences of hydrocarbon
gases with atypical molecular and isotopic compositions. This paper provides biotic …

Clumped isotope effects of thermogenic methane formation: Insights from pyrolysis of hydrocarbons

G Dong, H **e, M Formolo, M Lawson… - … et Cosmochimica Acta, 2021 - Elsevier
Methane clumped isotope analysis is a tool used to constrain the formation or equilibration
temperatures of methane, or to differentiate methane of thermogenic, microbial or …

Hydrogen and hydrocarbons associated with the Neoarchean frog's Leg Gold Camp, Yilgarn craton, western Australia

CJ Boreham, JH Sohn, N Cox, J Williams, Z Hong… - Chemical …, 2021 - Elsevier
High concentrations of hydrogen (H 2) and methane (CH 4) have been detected in shallow
open-hole exploration wells surrounding the Neoarchean Frog's Leg gold camp in the …

[HTML][HTML] Deep magma degassing and volatile fluxes through volcanic hydrothermal systems: Insights from the Askja and Kverkfjöll volcanoes, Iceland

E Ranta, SA Halldórsson, PH Barry, S Ono… - Journal of volcanology …, 2023 - Elsevier
Mantle volatiles are transported to Earth's crust and surface by basaltic volcanism. During
subaerial eruptions, vast amounts of carbon, sulfur and halogens can be released to the …