Results 201 to 210 of about 241,523 (262)

Appraisal of groundwater susceptibility to pollution using hybrid framework of stable isotopes and indexed approach. [PDF]

Sci Rep
Hagagg K, Sirag NM.
europepmc   +1 more source

A Low‐Power Radioisotope XRF Spectrometer for Detection of Light Elements on Planetary Missions

X-Ray Spectrometry, Volume 55, Issue 5, Page 721-729, September/October 2026.
ABSTRACT Current X‐ray spectrometers for in situ geochemical analysis on planetary missions typically rely either on X‐ray tubes, which demand electrical power and add mass and thermal complexity, or on alpha particle X‐ray spectrometers (APXS) that use rare 244 Cm sources, and come with severe concerns on radiation safety and isotope availability.
Leandro Silveri, Artem Knyazev, Hashem Alaidaros, Maryam Manzoor Amanullah, Zach Ioannou, Tengiz Ibrayev, Danish Khan, Sara Leardini, Laura Manenti, Simi Maria Emilia Mangani, Safa Naseem, Sandhya Sharma, Sara Trevisan, Alia Zino, Francesco Arneodo   +14 more
wiley   +1 more source

Regional postdeforestation weathering feedback drove diachronous C-S cycle perturbations during the end-Permian crisis. [PDF]

Proc Natl Acad Sci U S A
Chen J, Lu B, Du L, Lin M, Shen SZ, Montañez IP, Feng Z.   +6 more
europepmc   +1 more source

Petrogenesis and Tectonic Implication of the Newly Identified Rhyacian and Orosirian Orthogneisses in the Northwestern Part of the Gyeonggi Massif (Soyeonpyeongdo and Ganghwado Areas), South Korea: Constrained From Whole‐Rock Geochemistry and Zircon U‐Pb‐Hf Isotopic Compositions

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 9, September 2026.
Abstract The Gyeonggi Massif is one of the major Precambrian basements in the Korean Peninsula where Paleoproterozoic orthogneiss and paragneiss were widely exposed. In this study, newly identified Rhyacian to Orosirian meta‐igneous rocks from the northwestern Gyeonggi Massif (Soyeonpyeongdo and Ganghwado areas) were investigated to elucidate their ...
Seung Hwan Lee, Deung‐Lyong Cho, Jeong‐Yeong Park, Sung Won Kim, Byung Choon Lee, Mingguo Zhai   +5 more
wiley   +1 more source

Organic carbon recycling in subduction zones. [PDF]

Nat Commun
Debret B, Bouilhol P, Bouquerel H, Rigaudier T, Herviou C, Desmalles V, Velut PA, Ménez B, Schwartz S, Cartigny P.   +9 more
europepmc   +1 more source

Tectono‐Stratigraphic Evolution of a Shared Foreland Basin: A 3D Geomodel and Detrital Flux Reconstruction for the Pliocene‐Pleistocene of the Po‐Plain Basin (Northern Italy)

Basin Research, Volume 38, Issue 5, September‐October 2026.
The Plio‐Pleistocene succession of the Po Plain Basin was interpreted basin‐wide using seismic profiles and well data, identifying six major tectonic unconformities. Sediment volumes were calculated and decompacted to assess tectonic and climatic controls on basin infill, revealing a marked increase in detrital flux after 1.5 Ma, coincident with the ...
Barrera Daniel, Toscani Giovanni, Catellani Daniele, Meda Marco, Fantoni Roberto, Di Giulio Andrea   +5 more
wiley   +1 more source

Effectiveness of Non-Invasive Methods in Studying Jaguar (<i>Panthera onca)</i> Hair. [PDF]

Animals (Basel)
Rodrigues LP, Raad P, Santos DCD, Almeida AA, Costa VE, Mota LSLSD.   +5 more
europepmc   +1 more source

Spatial Variability in Recent Phototroph Production in a Large, Fluvial Lake Driven by Local Land‐Use Changes (St. Lawrence River, Canada)

Freshwater Biology, Volume 71, Issue 9, September 2026.
ABSTRACT Increases in lake production and the abundance of cyanobacteria have been reported in many temperate freshwater systems, with their rise typically attributed to elevated nutrient influx or climate change. On the St. Lawrence River (SLR), recent evidence suggests that cyanobacterial abundances have increased since ca. 2000, although the precise
Katherine E. Moir, Cale A. C. Gushulak, Peter R. Leavitt, Isaac Armstrong, Jeffrey J. Ridal, Brian F. Cumming   +5 more
wiley   +1 more source

Contrasting evolution of the Arabian Sea and Pacific Ocean oxygen minimum zones during the Miocene. [PDF]

Commun Earth Environ
Hess AV, Auderset A, Rosenthal Y, Sigman DM, Martínez-García A.   +4 more
europepmc   +1 more source

δ(¹⁸O/¹⁶O) Determinations in Water Using Inductively Coupled Plasma-Tandem Mass Spectrometry. [PDF]

Anal Chem
Lancaster ST, Irrgeher J, Dallmayr R, Conrad E, Hörhold M, Bohleber P, Behrens M, Camin F, Žagar K, Vreča P, Prohaska T.   +10 more
europepmc   +1 more source