Results 81 to 90 of about 6,795 (184)

Influence of Moisture and Temperature Regimes on the Phytolith Assemblage Composition of Mountain Ecosystems of the Mid Latitudes: A Case Study From the Altay Mountains

open access: yesFrontiers in Ecology and Evolution, 2019
Background and Aims: Reconstruction of past ecosystems requires a robust understanding of modern deposition patterns and taphonomy for the proxies utilized.
Marina Y. Solomonova   +4 more
doaj   +1 more source

Hydrothermally Carbonized Corncob‐Derived Hard Carbon Anodes for High‐Performance Sodium‐Ion Batteries

open access: yesChemElectroChem, Volume 12, Issue 24, December 8, 2025.
A low‐surface‐area hard carbon anode is synthesized from corncob waste through a two‐step process. The material treated at the highest temperature exhibits reduced irreversible reactions and enhances sodium storage performance, due to optimized porosity and structural order, highlighting a sustainable strategy for advanced sodium‐ion battery materials.
Alessia Rinaldi   +12 more
wiley   +1 more source

Geoarchaeological and Paleoenvironmental context of the human settlement in the Eastern Tandilia Range, Argentina [PDF]

open access: yes, 2013
The Tandilia range is a discontinuous series of hills and valleys located at the central area of the Pampean region (Argentina). The process of human settlement reached in this zone the highest population densities and reoccupation levels of Southern ...
Brea, Mariana   +7 more
core   +1 more source

Migratory Songbirds as Potential Ectozoochorous Protist Dispersal Vectors

open access: yesEcology and Evolution, Volume 15, Issue 12, December 2025.
We demonstrate that migratory songbirds carry diatoms (Bacillariophyta) in their plumage, revealing an unexpected avian–algal association. All seven bird specimens we examined contained diatoms—224 frustules representing 25 genera and 9 orders, primarily freshwater, benthic pennates—some retaining chloroplasts prior to digestion and mounting (implying ...
Silas E. Fischer   +4 more
wiley   +1 more source

Where geology meets pedology: Late Quaternary tephras, loess, and paleosols in the Mamaku Plateau and Lake Rerewhakaaitu areas [PDF]

open access: yes, 2012
On this trip we focus on tephrostratigraphy and soil stratigraphy together with aspects of palaeoenvironmental reconstruction over long and short time-spans.
Lanigan, Kerri Miriam   +2 more
core  

Fire, climate and the origins of agriculture: micro-charcoal records of biomass burning during the Last Glacial Interglacial Transition in Southwest Asia [PDF]

open access: yes, 2010
This study investigates changes in climate, vegetation, wildfire and human activity in Southwest Asia during the transition to Neolithic agriculture between ca. 16 and ca. 9 ka.
Alperson-Afil   +80 more
core   +1 more source

Effects of long-term soil erosion on phytolith assemblages along a catena in a temperate agricultural landscape

open access: yesGeoderma
Agricultural landscapes are exposed to soil erosion by water, wind, and tillage. The erosion-driven lateral translocation of soil has been recognized as a major threat to global soil health and food production.
Danuta Kaczorek   +4 more
doaj   +1 more source

Plant growth conditions alter phytolith carbon

open access: yesFrontiers in Plant Science, 2015
Many plants, including grasses and some important human food sources, accumulate and precipitate silica in their cells to form opaline phytoliths. These phytoliths contain small amounts of organic matter (OM) that are trapped during the process of ...
Kimberley L Gallagher   +4 more
doaj   +1 more source

Evolution of Loess Tablelands in the Central Great Plains: Relief Generation by Loess Accumulation and the Importance of Closed Depressions

open access: yesJournal of Geophysical Research: Earth Surface, Volume 130, Issue 12, December 2025.
Abstract Loess tablelands, plateau‐like landforms built of wind‐blown dust, store large volumes of sediment on its path from bedrock sources to sedimentary basins. Long‐term storage of organic carbon also occurs in buried soils beneath loess tableland summits.
Joseph A. Mason   +2 more
wiley   +1 more source

Phytoliths from the Southwest Pacific, Site 591 [PDF]

open access: yes, 1985
Phytoliths are described from deep sea sediments at Site 591 in the southwestern Pacific. Their regional distribution is related to the arid and semiarid regions of Australia, from where they were blown by westerly winds into the Tasman Sea area.
Locker, Sigurd, Martini, Erlend
core   +1 more source

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