Results 221 to 230 of about 29,328 (286)

Impact Reactivation of a Hydrothermal System in Basalt in the Vargeão Dome Impact Structure, Brazil

Journal of Geophysical Research: Planets, Volume 131, Issue 2, February 2026.
Abstract As hydrous minerals have been observed in impact craters on Mars, impact‐generated hydrothermal systems (IGHSs) have been considered as potential habitats for life on that planet. The Vargeão Dome, a 12 km wide impact structure in southern Brazil, was formed in basalts with at least two hydrothermal alteration stages.
Jitse Alsemgeest, Fraukje M. Brouwer, Luis F. Auqué, Kirsten van Zuilen, Natalia Hauser, Wolf Uwe Reimold   +5 more
wiley   +1 more source

Heavy potassium isotopes in carbonatites reveal oceanic crust subduction as the driver of deep carbon cycling. [PDF]

Sci Adv
Long ZY, Moynier F, Debret B, Qiu KF, Dai W, Sun HX, Deng J, Bertrand H, Burton K, Inglis E, Tappe S.   +10 more
europepmc   +1 more source

Magnetic‐lens‐generated polarized neutron beam with enhanced intensity and Q resolution for small‐angle neutron scattering

Journal of Applied Crystallography, Volume 59, Issue 1, Page 69-79, February 2026.
While maintaining or even improving Q resolution, a long array of short‐focal‐length magnetic lenses, with zero transmission loss and no diffuse scattering, successfully polarized and enhanced the intensity of neutron beams for small‐angle neutron scattering at momentum transfer Q > 0.1 nm−1.We installed a 30 mm‐bore 3.2 m‐long magnetic lens in the ...
Kosuke Hiroi, Rintaro Nakabe, Takayuki Oku, Takayuki Kumada, Ryuhei Motokawa   +4 more
wiley   +1 more source

Strontium and oxygen isotope analysis reveals changing connections to place and group membership in the world's earliest village societies. [PDF]

Sci Rep
Plug JH, Blevins KE, Abbès F, Akkermans PMMG, Bach Gómez AM, Chambrade ML, Chamel B, Coqueugniot E, Molist M, Orange M, van der Plicht J, Galata S, Nowell G, Montgomery J, Pearson J, Fernández-Domínguez E.   +15 more
europepmc   +1 more source

Biological Flora of Britain and Ireland: Geranium sylvaticum*

Journal of Ecology, Volume 114, Issue 2, February 2026.
Geranium sylvaticum is a perennial forb of upland grasslands, woodlands and riverbanks in northern Britain, with scattered native occurrences also in Wales, central England and Northern Ireland. It has an extensive native range in Europe and Asia. The species is gynodioecious, with individual plants typically female or hermaphrodite.
Markus Wagner, Richard G. Jefferson, Ruth E. Starr‐Keddle, Sandra Varga, Irina Tatarenko, Duncan B. Westbury, Lucy Hulmes   +6 more
wiley   +1 more source

Stable isotope and multi-elemental analysis combined with statistical modeling for saffron origin authentication. [PDF]

Food Chem X
Terro C, Strojnik L, Potočnik D, Hudobivnik MJ, Mazej D, Bontempo L, Eddabdouby M, Amenzou NE, Moncef B, Kelly S, Ogrinc N.   +10 more
europepmc   +1 more source

Fine-Scale Strontium Isotope Mapping in Eastern China (Anhui Province) and Its Application in Food Traceability. [PDF]

Foods
Wang M, Jiang Y, Han X, Ren A, He J, Yin M, Zhao Y, Peng H.   +7 more
europepmc   +1 more source

Isotopic data reveal a localist Roman population in late Roman Albintimilium, Liguria. [PDF]

Sci Rep
Defant S, Carabia A, Fetner R, Craig-Atkins E, Fernandes R, Martino GP, Costa S, Sołtysiak A, Izdebski A.   +8 more
europepmc   +1 more source

Sulfur as a proxy for identifying coast-inland human mobility in Northern Iberia during Late Prehistory. [PDF]

PLoS One
González-Rabanal B, Vidal-Cordasco M, Jones JR, Agudo Pérez L, Carmona-Ballestero E, López B, Martín Merino MÁ, Ortega AI, Straus LG, Stevens RE, Vega-Maeso C, González Morales MR, Marín-Arroyo AB.   +12 more
europepmc   +1 more source

Earliest evidence of sedentism in the Antilles: Multiple isotope data from Canímar Abajo, Cuba. [PDF]

Proc Natl Acad Sci U S A
Chinique de Armas Y, Hernández Godoy ST, Viera Sanfiel LM, Buhay WM, Laffoon JE.   +4 more
europepmc   +1 more source