Results 161 to 170 of about 90,687 (281)

1.38 Ga Four‐Layer Tuff Marker Horizon in North China black Shales as a Chronostratigraphic Boundary for the Pre‐Ediacaran Geological Timescale

open access: yesGeophysical Research Letters, Volume 52, Issue 17, 16 September 2025.
Abstract Boundaries in the Phanerozoic chronostratigraphic scale are mainly precisely defined and dated, and many correspond to environmental catastrophes induced by the emplacement of LIPs. The pre‐Ediacaran geological timescale is currently subdivided by approximate absolute ages.
Shuan‐Hong Zhang   +7 more
wiley   +1 more source

Seasonal dynamics of organic carbon and metals in thermokarst lakes from the discontinuous permafrost zone of western Siberia [PDF]

open access: gold, 2015
Rinat M. Manasypov   +11 more
openalex   +2 more sources

Gas market developments and their effect on relations between Russia and the EU [PDF]

open access: yes
The changes on the EU gas market are likely to affect Europe's relations with its natural gas suppliers who are facing increasing competition. Heading this list of producing countries is Russia.
Catherine Locatelli, Sadek Boussena
core  

Diversity of Volatile Emissions From Cork Oak: Quantity and Quality Vary Independently Across Its Range

open access: yesEcology and Evolution, Volume 15, Issue 9, September 2025.
We investigated the VOC emissions of 241 cork oak seedlings from ten provenances. The northern provenances tended to develop more sclerophyllous leaves with higher emission rates and lower photosynthesis rates than the southern populations. Independently of this, the composition of emissions varied discontinuously according to three distinct chemotypes,
Michael Staudt   +2 more
wiley   +1 more source

Taxonomic corrections and new records for vascular plants of Kyrgyzstan, 6

open access: yesNordic Journal of Botany, Volume 2025, Issue 9, September 2025.
A series of notes on taxonomy, nomenclature, morphology and distributions of native species of vascular plants in Kyrgyzstan is presented. Anaphalis roseoalba is treated as a synonym of A. virgata; Hippolytia herderi and H. megacephala are new synonyms of H. senecionis; Hippolytia darvasica and H. schugnanica are new synonyms of H. tomentosa; Campanula
Alexander N. Sennikov   +4 more
wiley   +1 more source

Biostratigraphy and correlation of the Cambrian Series 2 (Stage 4) to Miaolingian (Wuliuan) Thorntonia Limestone, south‐eastern Georgina Basin (Queensland, Australia)

open access: yesPapers in Palaeontology, Volume 11, Issue 5, September/October 2025.
Abstract The Australian Cambrian stratigraphic record is one of the most complete for any continent. However, there is a general division, with older Cambrian rocks in South Australia (predominantly Terreneuvian, Stage 2 to Miaolingian, Wuliuan) and younger rocks in northern Australia (mostly latest Series 2, Stage 4 and younger), with minimal ...
Marissa J. Betts   +5 more
wiley   +1 more source

Analysis of Rare Variants in Genes Related to Lipid Metabolism in Patients with Familial Hypercholesterolemia in Western Siberia (Russia). [PDF]

open access: yesJ Pers Med, 2021
Shakhtshneider E   +8 more
europepmc   +1 more source

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