Results 61 to 70 of about 5,273 (201)

Comparative Ionomics of Lycopodiaceae and Selaginellaceae Across Diverse Soil Types in Japan

open access: yesEcological Research, Volume 41, Issue 4, July 2026.
We conducted a comparative ionomic analysis of Lycopodiaceae and Selaginellaceae collected from diverse soil types in Japan, including serpentine soils and solfatara fields, to examine how evolutionary lineage and soil environment shape elemental composition in lycophytes.
Akinori Ren   +12 more
wiley   +1 more source

Geochemical characteristics, origin and main controlling factors of helium gas accumulation of helium-bearing natural gas in Sulige Gas Field, Ordos Basin, China

open access: yesJournal of Natural Gas Geoscience
The Ordos Basin is the largest natural gas producing region in China. Recent discoveries of two helium-rich natural gas fields (Dongsheng and Qingyang) shows promising helium resource potential.
Liyong Fan   +7 more
doaj   +1 more source

Distribution and genesis of large-scale Upper Paleozoic lithologic gas reservoirs on Yi-Shaan Slope

open access: yesPetroleum Exploration and Development, 2008
Lithologic reservoirs are widely distributed at Upper Paleozoic of Yi-Shaan Slope in Ordos Basin. With over 40 years of exploration, six large gas fields were discovered, including Sulige, Wushenqi, Yulin, Daniudi, Zizhou, and Mizhi, with total proved ...
Jin-hua FU, Xin-shan WEI, Jun-feng REN
doaj   +1 more source

Eastern Pacific Corals Track Robust ENSO Variability and Stronger La Niña Events 4,000 Years Before Present

open access: yesGeophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract The interannual El Niño‐Southern Oscillation (ENSO) triggers extreme climate events worldwide. Geochemical proxies in coral skeletons from the eastern equatorial Pacific (EP) track ENSO conditions, constraining its long‐term variance and response to forcing.
C. J. Tripp   +5 more
wiley   +1 more source

Physical and environmental drivers of Paleozoic tetrapod dispersal across Pangaea

open access: yesNature Communications, 2018
The late Paleozoic was a time of major transition for tetrapods. Here, Brocklehurst and colleagues analyse the biogeography of Paleozoic tetrapods and find shifts in dispersal and vicariance associated with Carboniferous mountain formation and end ...
Neil Brocklehurst   +3 more
doaj   +1 more source

Comment on “Tracking Ethane From Space Over a Large US Oil and Gas Region” by Francoeur et al.

open access: yesGeophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract Recent studies have established the ability to detect atmospheric ethane from space using thermal infrared observations from the Cross‐track Infrared Sounder (CrIS). Francoeur et al. (2025; https://doi.org/10.1029/2025GL115286) compare temporal changes in ethane spectral signals over the Permian Basin with emission changes inferred previously ...
D. B. Millet   +5 more
wiley   +1 more source

Satellite‐Based Assessment of Methane Emissions From the Darvaza Gas Crater

open access: yesGeophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract Methane is a potent greenhouse gas, and the Darvaza crater in Turkmenistan is a rare, persistent emitter. There are uncertainties regarding its formation date (either 1963 or 1971), fire ignition, and the fire's influence on methane release. Using historical Landsat imagery, we reconstruct the fire history, identifying that combustion began ...
Adriana Valverde   +5 more
wiley   +1 more source

Hyperspectral Fingerprinting of Dune Sediments Across the Arabian Peninsula: Insights Into Sediment Provenance and Transport Pathways From NASA's EMIT Data

open access: yesGeophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract The Arabian Peninsula encompasses one of the world's most extensive aeolian systems, yet the provenance and transport history of its dune sediments are not well understood. Using hyperspectral data from NASA's Earth Surface Mineral Dust Source Investigation (EMIT), we mapped mineral compositions and abundance patterns across dune fields and ...
Ahmed Alshakr   +8 more
wiley   +1 more source

Geochemical characteristics and genesis of the Paleozoic natural gas in the southern Ordos Basin, China

open access: yesJournal of Natural Gas Geoscience
The geochemical characteristics of the Paleozoic natural gas in the southern part of the Ordos Basin shows significant differences from those in the northern part. These differences lead to the increase in dryness coefficient and a heavier carbon isotope
Tao Zhang   +8 more
doaj   +1 more source

Seismic Velocity Variations Illustrate Hydrological and Ecohydrological Processes in a Mountain Watershed

open access: yesGeophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract We employ passive seismic interferometry to study seismic hydrological responses in a snowmelt‐driven, semi‐arid catchment. Seismic velocity changes (dv/v) at 2–4 Hz and 4–8 Hz are analyzed from six stations along a hillslope transect between May and November 2023 and compared to precipitation, soil moisture, and groundwater level timeseries ...
Kuan‐Fu Feng   +5 more
wiley   +1 more source

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