Results 41 to 50 of about 21,738 (130)

Formation and evolution of shale overpressure in deep Wufeng-Longmaxi Formation in southern Sichuan basin and its influence on reservoir pore characteristics

open access: yesFrontiers in Earth Science
In the deep Longmaxi Formation shale gas reservoirs of the southern Sichuan Basin, strong overpressure is universally developed to varying degrees. However, there is currently a lack of in-depth research on the formation mechanisms, evolutionary patterns,
Shasha Sun   +9 more
doaj   +1 more source

Gas Geochemistry and Fractionation Processes in Florina Basin, Greece [PDF]

open access: yes, 2019
Florina Basin is located in northern Greece, close to Mount Voras where the volcanic activity of Late Messinian age began. In the area, many CO2-rich gas emissions are present as a bubbling free-phase in groundwater (both springs and wells) and soil ...
Daskalopoulou, K.   +9 more
core  

Lipid Droplet‐Derived Biomimetic Nanocarriers for the Enhancement of Porcine Intermuscular Fat Content

open access: yesAdvanced Science, Volume 12, Issue 21, June 5, 2025.
The article presents the development of artificial lipid droplets (aLDs) as biomimetic nanocarriers to enhance intramuscular fat (IMF) content in pigs. These aLDs, loaded with oleic acid, significantly increase IMF by up to 35% in muscle tissues without adverse side effects. This innovative approach improves pork quality by enhancing marbling, offering
Pengxiang Zhao   +8 more
wiley   +1 more source

An Upper Bound to the Space Density of Interstellar Comets

open access: yes, 2011
Two well-studied white dwarfs with helium-dominated atmospheres (DBs) each possess less hydrogen than carried by a single average-mass comet. Plausibly, the wind rates from these stars are low enough that most accreted hydrogen remains with the star.
Beauchamp   +46 more
core   +1 more source

Carotenoids are the likely precursor of a significant fraction of marine dissolved organic matter. [PDF]

open access: yes, 2017
The ocean's biota sequester atmospheric carbon dioxide (CO2) in part by producing dissolved organic matter (DOM) that persists in the ocean for millennia.
Aluwihare, Lihini I   +5 more
core   +1 more source

Advancements in Ambient Ionisation Mass Spectrometry in 2024: An Annual Review

open access: yesAnalytical Science Advances, Volume 6, Issue 1, June 2025.
ABSTRACT The introduction of ambient ionisation mass spectrometry (AIMS) is among the most important developments in analytical chemistry in recent years. Enabling the direct analysis of samples in their native state with neither sample preparation nor chromatographic separation provides chemical characterisation in a matter of seconds.
Alisha Henderson   +2 more
wiley   +1 more source

Assessing the Helium Potential of Variscan Batholiths: Insight From Corsica Island

open access: yesGeochemistry, Geophysics, Geosystems
Most of the current helium (He) reserves originate from fortuitous discoveries, mainly made during oil and gas exploration in sedimentary basins. As helium generation depends on U and Th α‐decay, old geological provinces gather key ingredients for high ...
H. Dutoit   +11 more
doaj   +1 more source

A First Comparison of the responses of a He4-based fast-neutron detector and a NE-213 liquid-scintillator reference detector [PDF]

open access: yes, 2015
A first comparison has been made between the pulse-shape discrimination characteristics of a novel $^{4}$He-based pressurized scintillation detector and a NE-213 liquid-scintillator reference detector using an Am/Be mixed-field neutron and gamma-ray ...
Annand, J. R. M.   +16 more
core   +2 more sources

Geochemical evaluation of black limestones in the Early Cretaceous platform carbonates of Gümüşhane (NE Turkey): An insight into petroleum source rock potential and palaeoenvironment conditions

open access: yesThe Depositional Record, Volume 11, Issue 3, Page 917-953, June 2025.
Some layers of limestone produce some hydrocarbons, and these hydrocarbons are removed from the fractures and cracks of the rock. The organic matter (OM) contained in the limestone is a mixture of terrestrial and marine OM and is thermally immature and mature.
Çiğdem Saydam Eker   +2 more
wiley   +1 more source

Changes in hydrodynamic, structural and geochemical properties in carbonate rock samples due to reactive transport [PDF]

open access: yes, 2017
Reactive transport plays an important role in the development of a wide range of both anthropic and natural processes affecting geological media. To predict the consequences of reactive transport processes on structural and hydrodynamic properties of a ...
Carrera Ramírez, Jesús   +2 more
core   +2 more sources

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