Results 81 to 90 of about 784 (198)

Columnanidus calitzdorpensis ichnogen. ichnosp. nov: A new Middle Pleistocene subterranean termite trace fossil from South Africa

open access: yesJournal of Quaternary Science, Volume 41, Issue 6, Page 933-949, August 2026.
ABSTRACT Termites are landscape geo‐engineers whose nesting activities substantially modify the physical and chemical properties of soils. Fossilised termite nests commonly constitute the only identifiable evidence of ancient termite activity and represent valuable trace fossil archives for reconstructing past environments.
Miengah Abrahams   +7 more
wiley   +1 more source

Soil genesis in a marine terrace sequence of Sicily, Italy

open access: yesRevista Mexicana de Ciencias Geológicas, 2018
Knowledge about the rates of pedogenic processes is essential to understand landscape development and history. It can be attained by the quantitative investigation of soil chronosequences.
Stephen Wagner   +3 more
doaj  

Phosphate modulates elemental and macromolecular composition of unicellular nitrogen‐fixing cyanobacteria

open access: yesLimnology and Oceanography, Volume 71, Issue 8, August 2026.
Abstract The C : N : P of nitrogen‐fixing cyanobacteria regulates phosphate‐limited nitrogen fixation in the ocean yet the causes and range in variation C : N : P is not well constrained. Here we quantify the C : N : P and underlying macromolecular composition of Crocosphaera.
Sing‐how Tuo   +4 more
wiley   +1 more source

Distribution of Orthoptera across the river valley (Kaluga-Aleksin canyon, European Russia) and their dynamics under the overgrowing of meadows

open access: yesNature Conservation Research: Заповедная наука
Orthoptera insects (hereinafter – orthopterans) play a key role in grassland ecosystems and are often used as indicators of their condition. To conserve these insects and to model their habitat preferences, we need to know patterns of their distribution ...
Victor V. Aleksanov
doaj   +1 more source

Spatial Variability and Drivers of Salt Marsh Cliff Erosion in the Dutch Wadden Sea: From Observation to Simulation

open access: yesJournal of Geophysical Research: Earth Surface, Volume 131, Issue 8, August 2026.
Abstract Lateral erosion of salt marshes via cliff retreat is a primary cause of global marsh loss, driven by interactions between hydrodynamics, sediment, and vegetation. While previous studies show a linear relationship between wave power and cliff retreat, models based on this relationship are largely unvalidated for short‐term (sub‐yearly) and ...
S. Dzimballa   +7 more
wiley   +1 more source

Paleoseismic Evidence of Recent Co‐Seismic Ruptures in Western Tierra del Fuego, Chile

open access: yesTectonics, Volume 45, Issue 8, August 2026.
Abstract The Magallanes‐Fagnano fault (MFF) in Tierra del Fuego (TDF) is a major left‐lateral transform boundary between the South American and Scotia plates. While surface ruptures associated with the 1949 earthquakes have been documented in Argentina east of the Fagnano Lake, their extension to the west remained uncertain.
Ricardo Aguilera‐Cortés   +4 more
wiley   +1 more source

Geomorphology of marine and glacio-lacustrine terraces and raised shorelines in the northern sector of Península Brunswick, Patagonia, Straits of Magellan, Chile

open access: yesJournal of Maps, 2018
This paper illustrates a detailed geomorphological map (scale 1:50,000) of the marine and transitional terraces (glacio-lacustrine to marine) and raised shorelines linked to Holocene glacio-eustasy and neo-tectonics in the northern area of the Brunswick ...
Sandro De Muro   +4 more
doaj   +1 more source

Active Tectonics of the Eastern and Southern Alps ‐ Crustal Response to Deep Processes? A Review

open access: yesTectonics, Volume 45, Issue 8, August 2026.
Abstract Owing to the low N‐S convergence rates between Adria and Europe, crustal deformation rates in the Alps and its forelands are low. Active tectonics are, therefore, difficult to study, especially as non‐tectonic landscape forming processes can erase or modify the tectonic surface imprint. Large‐scale and dense seismological data recently offered
Christoph Grützner   +20 more
wiley   +1 more source

Riverbank dynamics in a semi-arid fluvial environment: A study of the lower valley of Wadi Tamri (Atlantic Atlas, Morocco)

open access: yesInvestigaciones Geográficas
Riverbanks in semi-arid Mediterranean environments are dynamic features constantly shaped by natural factors and human interventions. Wadi Tamri’s lower valley, with its large alluvial plain, fragile terraces, and mixed marine/continental deposits, is a ...
Hicham Irifi, Abdellatif Tribak
doaj   +1 more source

Glacial Imprints and Marine Overprints: Sediment Architecture and Fjord Evolution in Fiordland, New Zealand

open access: yesJournal of Geophysical Research: Earth Surface, Volume 131, Issue 8, August 2026.
Abstract Fjords are globally significant sedimentary archives that record the relationship between glacial, tectonic, and marine processes. Fiordland, on the southwest coast of New Zealand, hosts one of the most extensive temperate fjord provinces in the Southern Hemisphere, yet its postglacial evolution has remained poorly constrained.
Ellen Unland   +6 more
wiley   +1 more source

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