Results 161 to 170 of about 1,994 (297)

Polygonal tepee structures of Arabia

open access: yesThe Depositional Record, Volume 12, Issue 1, February 2026.
Tepee structures on Sheybarah Island form polygonal microbial cemented crusts in the intertidal. Radiocarbon dating suggests they formed in the Holocene and reflect minor sea‐level changes, highlighting their value as palaeoenvironmental indicators. Satellite surveys identified 126 polygonal features, including coral reefs that may have developed on ...
Pauline Falkenberg   +6 more
wiley   +1 more source

10,000 years of centennially-resolved climate and sea-level change archived in Svalbard beach-ridge system. [PDF]

open access: yesSci Rep
Strzelecki MC   +5 more
europepmc   +1 more source

A critical role of heterotrophic bacteria in early diagenesis of carbonates through exopolymer degradation and calcium release

open access: yesThe Depositional Record, Volume 12, Issue 1, February 2026.
Exopolymeric substances (EPS) produced in the photic zone and surface sediments sequester calcium. Below the sediment surface, heterotrophic bacteria degrade EPS, releasing calcium resulting in carbonate precipitation. This process, which continues for millennia deep in the core, is an important sink for atmospheric carbon dioxide.
Pieter T. Visscher   +9 more
wiley   +1 more source

The asynchronous rise of Northern Hemisphere alpine floras reveals general responses of biotic assembly to orogeny and climate change. [PDF]

open access: yesSci Adv
Ding W   +9 more
europepmc   +1 more source

Glacial geomorphology and glacial history of the Muzart River valley, Tianshan Range, China

open access: green, 2010
Jingdong Zhao   +5 more
openalex   +2 more sources

Palaeoglacier reconstruction and dynamics of Cordillera Vilcanota in the tropical high Peruvian Andes

open access: yesEarth Surface Processes and Landforms, Volume 51, Issue 2, February 2026.
We provide a geomorphological analysis of Cordillera Vilcanota and use morphostratigraphic principles to reconstruct palaeo icefield extent and palaeoglacier readvances, likely during the Antarctic Cold Reversal and Younger Dryas. We find evidence of temperate and polythermal ice margins, with limited glaciofluvial landform generation.
Bethan Davies   +11 more
wiley   +1 more source

Ocean driven retreat of the Northeast Greenland Ice Stream following the Last Glacial Maximum. [PDF]

open access: yesNat Commun
Callard SL   +6 more
europepmc   +1 more source

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