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 …

Water plays a critical role in erosion and sediment transport and this relationship is most
evident in the hyperarid Atacama Desert of Northern Chile, a region characterized by …

The sealing capacities of shale, roof, and floor strata are essential for the preservation of
shale gas. Sealing capacity development and its influence on shale gas composition and …

The unique self-generation and self-storage characteristics of shale gas allow for its
geochemical characteristics to better reflect the gas generation process inside the original …

Abiotically synthesized hydrocarbons are significant in the fields of astrobiology, biosphere,
energy, environment, and geology. Abiotic hydrocarbons have never been unambiguously …

Current approaches relating thermogenic gases to either shale source rocks (predominantly
type II kerogen) or coal source rocks (predominantly type III kerogen) are not reliable and not …

Naturally occurring hydrocarbon fluids in sedimentary basins have economic, geological
and environmental significance. Connecting sedimentary basin temperature-time evolution …

In mixed genesis gas (MGG) areas, varying proportions of microbial and thermogenic gases
lead to more intricate geochemical composition distributions, but the critical geochemical …

Abstract The Western Delta Deep Marine Concession (WDDM) in the Eastern
Mediterranean Sea is one of northern Africa's most recent petroleum-potential regions for …

Thermal cracking of complex organic matter can occur under many geological settings.
However, the role of thermal cracking vs. other chemistries (eg, metallic catalysis or Fischer …