Biogeochemical and Physical Controls on Methane Fluxes from Two Ferruginous Meromictic Lakes
Document Type
Article
Publication Date
10-8-2019
Publication Title
Geobiology
First page number:
1
Last page number:
16
Abstract
Meromictic lakes with anoxic bottom waters often have active methane cycles whereby methane is generally produced biogenically under anoxic conditions and oxidized in oxic surface waters prior to reaching the atmosphere. Lakes that contain dissolved ferrous iron in their deep waters (i.e., ferruginous) are rare, but valuable, as geochemical analogues of the conditions that dominated the Earth's oceans during the Precambrian when interactions between the iron and methane cycles could have shaped the greenhouse regulation of the planet's climate. Here, we explored controls on the methane fluxes from Brownie Lake and Canyon Lake, two ferruginous meromictic lakes that contain similar concentrations (max...) (see full abstract in article).
Keywords
Ferruginous; Lakes; Meromictic; Methane flux
Disciplines
Atmospheric Sciences | Bacteriology | Biogeochemistry | Fresh Water Studies
Language
English
Repository Citation
Lambrecht, N.,
Katsev, S.,
Wittkop, C.,
Hall, S. J.,
Sheik, C. S.,
Picard, A.,
Fakhraee, M.,
Swanner, E. D.
(2019).
Biogeochemical and Physical Controls on Methane Fluxes from Two Ferruginous Meromictic Lakes.
Geobiology
1-16.
http://dx.doi.org/10.1111/gbi.12365