Project information
Project aim
The lakes and fjords of the Vestfold Hills region of Antarctica provide unique ecosystems for studying environmental changes in Antarctica over the past 8000 years. Studies of the changes in organic matter composition in sediment cores provide information how the microbial and plankton communities have changed over time in response to varying chemical and physical conditions. Our study will provide new information about how the cycles of the biologically-important elements carbon and sulfur are linked and why some sediments can preserve large amounts of organic carbon. This information will be useful for studies of palaeoclimate and will also provide valuable insights into the processes that produce petroleum source rocks.
Related publications
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Unsaturated diether lipids in the psychrotrophic archaeon Halorubrum lacusprofundi. Systematic and Applied Microbiology, 2005
(Ref: 11827)
Category 1: Peer-reviewed literature
The major phospholipids of Halorubrum lacusprofundi grown at 25 1C were archaeol phosphatidylglycerol, archaeol … phosphatidylglycerylsulphate and archaeol phosphatidylglycerylphosphate methyl ester.Glycolipids included a monoglycosyl archaeol and the sulphate ester of a diglycosyl archaeol.
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Novel intact glycolipids in sediments from an Antarctic lake (Ace Lake) Organic Geochemistry, 2001
(Ref: 9624)
Authors:Category 1: Peer-reviewed literature
Two novel glycolipids, docosanyl 3-O-methyl-alpha - rhamnopyranoside and docosanyl 3-O-methylxylopyranoside, were identified as the most abundant GC-amenable components of extracts of sediments of Ace Lake, an Antarctic meromictic lake.
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Early steroid sulfurisation in surface sediments of a permanently stratified lake (Ace Lake, Antarctica) Geochimica et Cosmochimica Acta, 2000
(Ref: 9305)
Category 1: Peer-reviewed literature
Surface sediments (0-25 cm) from Ace Lake (eastern Antarctica), a saline euxinic lake, were analyzed to study the early incorporation of reduced inorganic sulfur species into organic matter. The apolar fractions were shown to consist predominantly of dimeric (poly)sulfide linked C-27-C-29 steroids.
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Organic geochemistry of Antarctic saline lakes and fjords. Organic geochemistry, developments and applications to energy, climate, environment and human history. Selected papers from the 17th International Meeting on Organic Geochemistry, Donostia-San Sebastian, Spain. 4-8 September. A.I.G.O.A., Spain, 1995
(Ref: 7079)
Category 3: Conference paper