Anthropogenic and environmental constraints on the microbial methane cycle in coastal sediments
Large amounts of methane, a potent greenhouse gas, are produced in anoxic sediments by
methanogenic archaea. Nonetheless, over 90% of the produced methane is oxidized via …
methanogenic archaea. Nonetheless, over 90% of the produced methane is oxidized via …
Rapid microbial methanogenesis during CO2 storage in hydrocarbon reservoirs
Carbon capture and storage (CCS) is a key technology to mitigate the environmental impact
of carbon dioxide (CO2) emissions. An understanding of the potential trapping and storage …
of carbon dioxide (CO2) emissions. An understanding of the potential trapping and storage …
The organic isotopologue frontier
A Gilbert - Annual Review of Earth and Planetary Sciences, 2021 - annualreviews.org
Organic molecules are key components of the Earth-life system. Their stable isotope
composition provides information on various problems such as past climate, energy …
composition provides information on various problems such as past climate, energy …
Tracing sources of atmospheric methane using clumped isotopes
We apply a recently developed measurement technique for methane (CH4) isotopologues
(isotopic variants of CH4—13CH4, 12CH3D, 13CH3D, and 12CH2D2) to identify …
(isotopic variants of CH4—13CH4, 12CH3D, 13CH3D, and 12CH2D2) to identify …
Well-hidden methanogenesis in deep, organic-rich sediments of Guaymas Basin
DP Bojanova, VY De Anda… - The ISME …, 2023 - academic.oup.com
Abstract Deep marine sediments (> 1mbsf) harbor~ 26% of microbial biomass and are the
largest reservoir of methane on Earth. Yet, the deep subsurface biosphere and controls on …
largest reservoir of methane on Earth. Yet, the deep subsurface biosphere and controls on …
The evolution of intra-and inter-molecular isotope equilibria in natural gases with thermal maturation
Naturally occurring hydrocarbon fluids in sedimentary basins have economic, geological
and environmental significance. Connecting sedimentary basin temperature-time evolution …
and environmental significance. Connecting sedimentary basin temperature-time evolution …
Extreme methane clumped isotopologue bio-signatures of aerobic and anaerobic methanotrophy: Insights from the Lake Pavin and the Black Sea sediments
Microbial methane oxidation-or methanotrophy-is a key control of the global methane
budget on Earth, and perhaps in other planetary systems. Here, we explore the potential role …
budget on Earth, and perhaps in other planetary systems. Here, we explore the potential role …
Methane thermometry in deep-sea hydrothermal systems: evidence for re-ordering of doubly-substituted isotopologues during fluid cooling
Deep-sea hydrothermal fluids are often enriched in carbon dioxide, methane, and hydrogen.
Methane effuses from metal-rich black smokers such as the Rainbow hydrothermal field, at …
Methane effuses from metal-rich black smokers such as the Rainbow hydrothermal field, at …
Controls on the isotopic composition of microbial methane
Microbial methane production (methanogenesis) is responsible for more than half of the
annual emissions of this major greenhouse gas to the atmosphere. Although the stable …
annual emissions of this major greenhouse gas to the atmosphere. Although the stable …
High-resolution, long-term isotopic and isotopologue variation identifies the sources and sinks of methane in a deep subsurface carbon cycle
This study applies a combined isotope and doubly-substituted isotopologue ('clumped')
methane approach to samples collected over a 9-year long-term experiment at the Kidd …
methane approach to samples collected over a 9-year long-term experiment at the Kidd …