Results 61 to 70 of about 12,428 (212)

Factors controlling the morphology and volume (V)–length (L) relations of permanent gullies in the Northern Ethiopian Highlands [PDF]

open access: yes, 2013
Small-scale aerial photographs and high-resolution satellite images, available for Ethiopia since the second half of the twentieth century as for most countries, allow only the length of gullies to be determined.
Deckers, Jozef   +6 more
core   +1 more source

Investigation of formation mechanism of tufa deposits by chemical breakdown of legacy paper mill sludge

open access: yesThe Depositional Record, Volume 12, Issue 1, February 2026.
This study reveals that legacy paper mill sludge can generate tufa deposits through calcium leaching and atmospheric CO2 interaction, acting as a carbon sink. The findings highlight its potential for low‐cost carbon sequestration and sustainable waste management.
Md Jahangir Alam, John M. MacDonald
wiley   +1 more source

Petrography and U/Th dating of travertine deposits in Bongongo (Cameroon volcanic line): Implication for paleoclimate, hydrothermalism and tectonism

open access: yesSolid Earth Sciences
The studied travertine deposits have been analysed using sedimentology, petrography and geochronology to evaluate their resurgence variation, Neotectonic reconstruction, hydrothermal/paleohydrology, and tectonic influence for their precipitation.
Bisse Salomon Bertrant   +6 more
doaj   +1 more source

Microbial Distributions Across Wide‐Ranging Temperature Gradients of Hot Springs in Thailand: A Review of 35 Years of Research on Hot Spring‐Associated Microorganisms

open access: yesEnvironmental Microbiology Reports, Volume 18, Issue 1, February 2026.
This review article summarised 35 years of research on microbial distributions (bacteria, archaea and microbial eukaryotes) across wide‐ranging hot spring temperatures in Thailand, including the overall research progression, scopes and methodologies of previous studies.
C. Sriaporn   +5 more
wiley   +1 more source

Persistence and dynamic of forest snails in the Western Carpathians over the last 40 thousand years

open access: yesBoreas, Volume 55, Issue 1, Page 98-109, January 2026.
The glacial/interglacial cycles have shaped the landscape of temperate Europe for the past 2.5 million years, with open landscapes prevailing during the glacial and forested landscapes during the interglacial periods. However, the survival and recolonization strategies of temperate forest species during glacial phases remain poorly understood and hotly
Lucie Juřičková   +5 more
wiley   +1 more source

TRAVERTINE THE RESTORATION STONE FOR THE ZAGREB CATHEDRAL

open access: yesRudarsko-geološko-naftni Zbornik, 1995
Roman travertine San Pietro Classico, from a deposit in the Acque Albule basin near Rome, will be used for the restoration of the cathedral in Zagreb instead of the previosly used lithotamnian limestone.
Branko Crnković , Francesco Poggi
doaj  

A New Occurrence of Terrestrial Native Iron in the Earth’s Surface: The Ilia Thermogenic Travertine Case, Northwestern Euboea, Greece

open access: yesGeosciences, 2018
Native iron has been identified in an active thermogenic travertine deposit, located at Ilia area (Euboea Island, Greece). The deposit is forming around a hot spring, which is part of a large active metallogenetic hydrothermal system depositing ore ...
Christos Kanellopoulos   +6 more
doaj   +1 more source

Does the Cave Environment Limit Functional Diversity? Rethinking Patterns in Oniscidea Assemblages From a Neotropical Karst

open access: yesBiotropica, Volume 58, Issue 1, January 2026.
Cave habitats strongly filter functional traits, constraining the diversity of terrestrial isopod communities along the epigean–hypogean gradient. Functional turnover decreases while richness differences increase in hypogean systems, reflecting uneven occupation of trait space rather than simple trait replacement.
Rafaela Bastos‐Pereira   +4 more
wiley   +1 more source

Coral larval enhancement with and without nets yields similar recruitment during slack current releases

open access: yesRestoration Ecology, Volume 34, Issue 1, January 2026.
Abstract Introduction Restoring coral reefs through larval enhancement has the potential to scale interventions beyond experimental plots of tens of m2. However, the effectiveness of releasing larvae without confinement (“free release”) remains untested.
Marine Gouezo   +9 more
wiley   +1 more source

Dual Clumped Isotope (Δ47, Δ48) Values for Calcite Grown at Varying pH and Carbonic Anhydrase Concentrations Constrain Equilibrium and Kinetic Isotope Effects

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 12, December 2025.
Abstract This study explores the isotopologues m/z 47 (13C18O16O, denoted Δ47) and m/z 48 (12C18O2, denoted Δ48) in CO2 derived from carbonate minerals, focusing on their temperature dependency, kinetic isotope effects, and distinct reaction pathways. By conducting experiments at four temperatures (5°C, 10°C, 15°C, and 25°C) using the enzyme carbonic ...
Jamie Lucarelli   +6 more
wiley   +1 more source

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