Frontiers of carbonate clumped isotope thermometry

KW Huntington, SV Petersen - Annual Review of Earth and …, 2023 - annualreviews.org
Carbonate minerals contain stable isotopes of carbon and oxygen with different masses
whose abundances and bond arrangement are governed by thermodynamics. The clumped …

Methyl (alkyl)-coenzyme M reductases: nickel F-430-containing enzymes involved in anaerobic methane formation and in anaerobic oxidation of methane or of short …

RK Thauer - Biochemistry, 2019 - ACS Publications
Methyl-coenzyme M reductase (MCR) catalyzes the methane-forming step in methanogenic
archaea. The active enzyme harbors the nickel (I) hydrocorphin coenzyme F-430 as a …

The ladder of life detection

M Neveu, LE Hays, MA Voytek, MH New, MD Schulte - Astrobiology, 2018 - liebertpub.com
We describe the history and features of the Ladder of Life Detection, a tool intended to guide
the design of investigations to detect microbial life within the practical constraints of robotic …

[CARTE][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 …

Tracing sources of atmospheric methane using clumped isotopes

MA Haghnegahdar, J Sun, N Hultquist… - Proceedings of the …, 2023 - pnas.org
We apply a recently developed measurement technique for methane (CH4) isotopologues
(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 …

Advancing scientific understanding of the global methane budget in support of the Paris Agreement

AL Ganesan, S Schwietzke, B Poulter… - Global …, 2019 - Wiley Online Library
Abstract The 2015 Paris Agreement of the United Nations Framework Convention on
Climate Change aims to keep global average temperature increases well below 2° C of …

H2 and CH4 outgassing rates in the Samail ophiolite, Oman: implications for low-temperature, continental serpentinization rates

JA Leong, M Nielsen, N McQueen, R Karolytė… - … et Cosmochimica Acta, 2023 - Elsevier
Abstract Reduced (H 2-and CH 4-rich) and hyperalkaline fluids are products of subsurface
reactions accompanying serpentinization of ultramafic rocks. H 2 and CH 4 produced during …

Methane clumped isotopes: Progress and potential for a new isotopic tracer

PMJ Douglas, DA Stolper, JM Eiler, AL Sessions… - Organic …, 2017 - Elsevier
The isotopic composition of methane is of longstanding geochemical interest, with important
implications for understanding petroleum systems, atmospheric greenhouse gas …