[HTML][HTML] Reviews and syntheses: The biogeochemical cycle of silicon in the modern ocean

PJ Tréguer, JN Sutton, M Brzezinski… - …, 2021 - bg.copernicus.org
The element silicon (Si) is required for the growth of silicified organisms in marine
environments, such as diatoms. These organisms consume vast amounts of Si together with …

Subglacial lakes and their changing role in a warming climate

SJ Livingstone, Y Li, A Rutishauser… - Nature Reviews Earth & …, 2022 - nature.com
Subglacial lakes are repositories of ancient climate conditions, provide habitats for life and
modulate ice flow, basal hydrology, biogeochemical fluxes and geomorphic activity. In this …

Contemporary ice sheet thinning drives subglacial groundwater exfiltration with potential feedbacks on glacier flow

AA Robel, SJ Sim, C Meyer, MR Siegfried… - Science …, 2023 - science.org
Observations indicate that groundwater-laden sedimentary aquifers are extensive beneath
large portions of the Greenland and Antarctic ice sheets. A reduction in the mechanical …

Illuminating active subglacial lake processes with ICESat‐2 laser altimetry

MR Siegfried, HA Fricker - Geophysical Research Letters, 2021 - Wiley Online Library
Antarctica's basal water system contains more than 130 active lakes, and its evolution
remains a major uncertainty in future ice sheet dynamics. Most of our current understanding …

Anthropogenic contaminants in glacial environments I: Inputs and accumulation

DB Beard, CC Clason, S Rangecroft… - Progress in …, 2022 - journals.sagepub.com
Historically, glaciers have been seen as pristine environments. However, recent research
has shown that glaciers can accumulate and store contaminants over long timescales …

Trace element (Fe, Co, Ni and Cu) dynamics across the salinity gradient in Arctic and Antarctic glacier fjords

J Krause, MJ Hopwood, J Höfer, S Krisch… - Frontiers in Earth …, 2021 - frontiersin.org
Around the Greenlandic and Antarctic coastlines, sediment plumes associated with glaciers
are significant sources of lithogenic material to the ocean. These plumes contain elevated …

The biogeochemical legacy of arctic subglacial sediments exposed by glacier retreat

P Vinšová, TJ Kohler, MJ Simpson… - Global …, 2022 - Wiley Online Library
During past periods of advance, Arctic glaciers and ice sheets overrode soil, sediments, and
vegetation and buried significant stores of organic matter (OM); these glaciers are now …

Biological uptake, water mass mixing and scavenging limit the transport of manganese‐rich waters from the East Antarctic shelf

P Latour, P van der Merwe, K Wuttig… - Global …, 2023 - Wiley Online Library
Manganese (Mn) is an essential element involved in photosynthesis, yet its concentrations
in Southern Ocean open waters are very low, arising from biological uptake and limited …

[HTML][HTML] Seasonal dispersal of fjord meltwaters as an important source of iron and manganese to coastal Antarctic phytoplankton

KO Forsch, L Hahn-Woernle, RM Sherrell… - …, 2021 - bg.copernicus.org
Glacial meltwater from the western Antarctic Ice Sheet is hypothesized to be an important
source of cryospheric iron, fertilizing the Southern Ocean, yet its trace-metal composition …

Iron and silicic acid addition effects on early spring macronutrient drawdown and biogenic silica production of Patagonia estuarine waters

R Torres, R Sherrell, B Reid, G Pizarro… - Progress in …, 2023 - Elsevier
The Patagonia archipelago interior sea (PAIS) of southern Chile is one of the largest fjord
systems on earth. These coastal waters include remote and virtually pristine areas where …