Thermal maturation is the temperature- and time-dependent transformation of sedimentary organic matter, primarily kerogen, into hydrocarbons and related products within sedimentary basins. Governed by burial depth, geothermal gradient, and heating duration, it involves progressive bond cleavage, aromatization, and structural reorganization of macromolecular organic networks. Thermal maturation is quantified using indicators such as vitrinite reflectance, Tmax from Rock-Eval pyrolysis, and biomarker isomerization ratios, which constrain organic facies evolution and hydrocarbon generation windows (oil and gas windows). It is a central topic in petroleum systems analysis, basin modeling, and the assessment of unconventional resource quality and producibility.
Microbial methane leaking from non-producing oil and gas wells is being emitted at rates about 1,000 times higher than previously estimated, according to a new study led by McGill University researchers. "Origins of Subsurface ...
Environment
Apr 9, 2026
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Between 2023 and 2025, more than 30 million hectares burned in Canada due to wildfires. The threat from increasingly frequent and intense wildfires goes beyond fire and smoke—the heat can also transform naturally occurring ...
Environment
Mar 5, 2026
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Deep beneath the ocean's surface lies Earth's largest carbon reservoir: marine sediments that have accumulated organic matter over millions of years. Long assumed to be permanently "locked away," this vast carbon pool is ...
Earth Sciences
Aug 21, 2025
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How sensitively does organic carbon stored in soils react to changes in temperature and humidity? This question is central to a new study now published in Nature Communications.
Earth Sciences
May 16, 2025
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