Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Metal dynamics in Lake Vanda (Wright Valley, Antarctica).

W J Green1, T G Ferdelman, D E Canfield

  • 1School of Interdisciplinary Studies, Miami University, Oxford, OH 45056, USA.

Chemical Geology
|January 1, 1989
PubMed
Summary

Manganese (Mn) and iron (Fe) scavenging in Lake Vanda drives the cycling of other metals like cobalt (Co), nickel (Ni), copper (Cu), and cadmium (Cd). Geochemical processes separate Fe and Mn, impacting their loss from this Antarctic lake.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Mesophilic microorganisms build terrestrial mats analogous to Precambrian microbial jungles.

Nature communications·2019
Same author

Bioturbation and directionality in Earth's carbon isotope record across the Neoproterozoic-Cambrian transition.

Geobiology·2018
Same author

Evidence of oxygenic phototrophy in ancient phosphatic stromatolites from the Paleoproterozoic Vindhyan and Aravalli Supergroups, India.

Geobiology·2018
Same author

Carbon isotope fractionation by anoxygenic phototrophic bacteria in euxinic Lake Cadagno.

Geobiology·2017
Same author

Evidence of molybdenum association with particulate organic matter under sulfidic conditions.

Geobiology·2016
Same author

A trophic framework for animal origins.

Geobiology·2016

Area of Science:

  • Geochemistry
  • Environmental Science
  • Limnology

Background:

  • Antarctic lakes like Lake Vanda provide unique environments for studying geochemical processes.
  • Understanding metal behavior in closed-basin lakes is crucial for assessing environmental impacts.

Purpose of the Study:

  • To investigate the concentrations and behavior of trace metals (Mn, Fe, Co, Ni, Cu, Cd) in the Onyx River and Lake Vanda.
  • To determine the factors controlling metal distribution and cycling in a closed-basin Antarctic lake.

Main Methods:

  • Water sampling and analysis of metal concentrations at various depths in Lake Vanda and the Onyx River.
  • Development of a steady-state model to estimate metal fluxes.
  • Comparison of metal residence times in Lake Vanda with oceanic values.
Keywords:
NASA Center ARCNASA Discipline ExobiologyNASA Discipline Number 52-30NASA Program Exobiology

Related Experiment Videos

Main Results:

  • Low oxic water concentrations for Co, Ni, Cu, and Cd suggest scavenging by sinking particles.
  • Sharp metal peaks (Mn, Fe, Co) observed at the oxic-anoxic boundary (60 m).
  • Ni, Cu, and Cd maxima correlate with a manganese submaximum, indicating release from manganese oxide particles.

Conclusions:

  • A significant downward flux of Mn into Lake Vanda explains the annual loss of Co, Ni, Cu, and Cd.
  • Geochemical separation occurs between Fe (lost near-shore) and Mn (lost in deeper waters).
  • Mn, Fe, and Co are more reactive than Ni, Cu, and Cd, likely due to inclusion in oxide lattices.