Results 51 to 60 of about 250 (169)

Pleistocene and Holocene Mobility of Detrital Platinum in Southern New Zealand: Review and Regional Synthesis

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.
Detrital platinum group minerals (PGM) are rare and distinctive in Pleistocene–Holocene sedimentary systems of the southern South Island, thereby enabling tracking of their long‐distance transport for ∼200 km. The first ∼100 km of transport involved Pleistocene glaciofluvial processes southwards down the Waiau River, where PGM (principally Pt–Fe and Ru–
Dave Craw, Marshall Palmer
wiley   +1 more source

On the Transportal of Erratic Boulders from a lower to a higher level [PDF]

open access: yesQuarterly Journal of the Geological Society of London
It will, I think, be generally admitted that the most valid objection which has been advanced against the theory of the transportal of erratic boulders by floating ice, lies in the fact of their having not unfrequently been carried from a lower to a higher level. Mr. Hopkins, indeed, referring to certain boulders of a peculiar conglomerate described by
openaire   +2 more sources

Effect of Unstable Water Flow on Grain Transport: Insights From Laboratory Experiments Under Reduced Atmospheric Pressure

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.
Abstract Nowadays, Mars presents an environment characterized by low atmospheric pressure (∼6 mbar), which profoundly alters water‐driven surface processes known from Earth. Under these conditions, water rapidly boils, cools, and stabilizes near the triple point, often freezing, which strongly limits its ability to transport sediment.
Ondřej Krýza   +7 more
wiley   +1 more source

Geomorphology of Stansbury Peninsula, Nelson Island, Antarctic Peninsula

open access: yesJournal of Maps
The proglacial landscapes of Antarctica offer critical insights into past and ongoing deglaciation processes and the impacts of climate change. This study presents the first geomorphological map of the proglacial part of Stansbury Peninsula (Rip Point ...
Göksu Uslular   +5 more
doaj   +1 more source

The Integration of Fire Ecology and Freshwater Ecosystems in North America: Knowledge Gaps and Research Needs

open access: yesGlobal Change Biology, Volume 32, Issue 6, June 2026.
Illustration of key knowledge gaps and pathways linking fire ecology and freshwater ecosystems. Climate change provides the overarching context, interacting with cumulative and cross‐scale effects to shape local freshwater conditions. Within this context, fire characteristics influence three primary pathways within freshwater ecosystems: species and ...
Morgan L. Piczak   +13 more
wiley   +1 more source

Cannonballs from the Olsztyn turret

open access: yesFasciculi Archaeologiae Historicae, 2015
This paper discusses an assemblage of artillery projectiles discovered in 2012 in the course of archaeological works in the basement of remains of the Medieval High Turret in Olsztyn (Masuria – north-eastern Poland).
Piotr Strzyż   +2 more
doaj  

Wartanian glacial sediments: insights into deglaciation of Polish Lowlands and Highlands border for geotourism

open access: yesMiscellanea Geographica: Regional Studies on Development
This paper presents five sites located in the marginal zone of the Wartanian stadial within the Odranian Glaciation (MIS6a) on the border of the Central Polish Uplands and Lowlands, representing different glacial forms and geological structures: terminal
Górska-Zabielska Maria   +1 more
doaj   +1 more source

Calibration and Performance of the High Resolution Volatiles and Minerals Moon Mapper (HVM3) on Lunar Trailblazer

open access: yesEarth and Space Science, Volume 13, Issue 5, May 2026.
Abstract This article reports on the initial calibration and performance of the High‐resolution Volatiles and Minerals Moon Mapper (HVM3 ${\mathrm{H}\mathrm{V}\mathrm{M}}^{3}$), slated for launch on the National Aeronautics and Space Administration's Lunar Trailblazer mission.
David R. Thompson   +38 more
wiley   +1 more source

Geomorphology of the Évettes alpine glacial landsystem: documenting the legacy of the Little Ice Age in the Western Alps, France

open access: yesJournal of Maps
The end of the Little Ice Age (LIA) in the nineteenth century triggered glacial retreat across the Northern Hemisphere, leaving behind sediment-landform assemblages that preserve records of glacier behavior.
Myriam Thériault   +5 more
doaj   +1 more source

Hulterstad brachiopods and associated faunas in the Vormsi Stage (Upper Ordovician, Katian) of the Lelle core, Central Estonia [PDF]

open access: yesEstonian Journal of Earth Sciences, 2007
Integrated palaeontological and sedimentological study of the Upper Ordovician Vormsi Stage in the Lelle drill core section, Central Estonia, revealed an association of shelly fauna containing the endemic saukrodictyid brachiopod Hulterstadia cor (Wiman),
Nõlvak, Jaak   +3 more
doaj  

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