Results 61 to 70 of about 4,315 (229)

Taxonomic investigation of Abrothallus (Abrothallales, Ascomycota) species associated with lichen genera Ramalina and Bryoria, including the description of a new species

open access: yesNordic Journal of Botany, Volume 2026, Issue 2, February 2026.
The obligately lichenicolous genus Abrothallus consists of approximately 50 species, almost all of which are associated with lichens having foliose, fruticose, or pendulous thalli. This paper focuses on species that grow on strap lichens (Ramalina) providing new insights into their phylogenetic relationships and distribution.
Ave Suija   +5 more
wiley   +1 more source

Seasonal Ice Cover Could Allow Liquid Lakes to Persist in a Cold Mars Paleoclimate

open access: yesAGU Advances, Volume 7, Issue 1, February 2026.
Abstract Geomorphic and stratigraphic studies of Mars prove that extensive liquid water flowed and pooled on the surface early in Mars' history. Martian paleoclimate models, however, have difficulty simulating climate conditions warm enough to maintain liquid water on early Mars.
Eleanor L. Moreland   +8 more
wiley   +1 more source

Anatomy of phreatic eruptions

open access: yesEarth, Planets and Space, 2018
This study investigates phreatic eruptions at two similar volcanoes, Kawah Ijen (Indonesia) and White Island (New Zealand). By carefully processing broadband seismic signals, we reveal seismic signatures and characteristics of these eruptions.
Corentin Caudron   +8 more
doaj   +1 more source

Crater Lake in Oregon 1 [PDF]

open access: yesNature, 1903
TWENTY years ago, as Mr. Diller informs us, picturesque record of a strange episode in volcanic history was unknown to any but the Indians. It is still not very accessible, for it lies in an unfrequented region, deep set in the summit of the Cascade Range, some sixty-five miles north of the California line, but the United States Government ...
openaire   +1 more source

The entire lifetime of a distinct double-diffusive staircase in crater Lake Nyos, Cameroon [PDF]

open access: hybrid, 2022
Alfred Wüest   +4 more
openalex   +1 more source

On the Possibility of Melting Water Ice During the Recent Past of Mars: Implications for the Formation of Gullies

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 2, February 2026.
Abstract The formation of gullies on Mars has often been attributed to the melting of (sub)surface water ice. However, melting‐based hypotheses generally overlook key processes: (a) sublimation cooling by latent heat absorption, (b) the non‐stability of ice where melting conditions can be reached, and (c) the particular microclimates of gullied slopes.
L. Lange, F. Forget
wiley   +1 more source

Sustainable Water Systems in Space: A Review of Current Technologies and Future Prospects

open access: yesWater Resources Research, Volume 62, Issue 2, February 2026.
Abstract Sustainable water management is a critical challenge in space exploration, where the limited availability of resources requires innovative approaches to ensure astronauts' survival on long‐duration missions. This narrative review explores the key technologies and methods involved in water recycling, in situ resource utilization (ISRU), and ...
David Bamidele Olawade   +2 more
wiley   +1 more source

Stranded Assets

open access: yesColloquy: Text, Theory, Critique, 2018
The glass viewing platform jutted out over the lip of the crater. Roberta’s hands clenched around the rail as she fought a swirl of vertigo. The massive gouge yawned beneath her, stepped sides dripping with greenery cut through with walking trails.
Jason Nahrung
doaj   +1 more source

Sampling genetic diversity in the sympatrically and allopatrically speciating Midas cichlid species complex over a 16 year time series

open access: yesBMC Evolutionary Biology, 2007
Background Speciation often occurs in complex or uncertain temporal and spatial contexts. Processes such as reinforcement, allopatric divergence, and assortative mating can proceed at different rates and with different strengths as populations diverge ...
Bunje Paul ME   +2 more
doaj   +1 more source

Whump, Slosh, Slosh, Slosh—Filling the Crater That Did in the Dinosaurs

open access: yesAGU Advances, 2020
Drilling into the Chicxulub crater (Yucatan, Mexico) reveals the dramatic aftermath of the dinosaur‐killing meteorite impact. Previous views of this event have mainly come from places well away from Ground Zero, where we see the extinction of ~70% of ...
Richard Norris
doaj   +1 more source

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