Branched glycerol dialkyl glycerol dialkyl (brGDGT) distributions in Lake Baikal sediments

Publishing Network for Geoscientific and Environmental Data (PANGAEA) (Alfred Wegener Institute for Polar and Marine Research) 2026 Dataset Open access

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Authors: Novak, Joseph B, Prokopenko, Alexander A, Tarasov, Pavel E, Russell, James M, Lindemuth, Emma, Shichi, Koji, Kashiwaya, Kenji, Peck, John A, Vachula, Richard, Swann, George E A, Polissar, Pratigya J
DOI: 10.1594/pangaea.983541
Cited by: 0

Abstract

An 8.6-million-year record of branched glycerol dialkyl glycerol dialkyl (brGDGT) distributions from Lake Baikal, Russia. BrGDGTs are membrane spanning lipids produced by bacteria in numerous growth media. The methylation patterns of brGDGTs are empirically related to changes in environmental temperature, making brGDGTs a useful proxy for temperature changes in the geologic record. The data archived here document shifts in brGDGT distributions (methylation, cyclization, and isomerization) that form the basis of the Lake Baikal brGDGT temperature record.

Publication details

Journal / source
Publishing Network for Geoscientific and Environmental Data (PANGAEA) (Alfred Wegener Institute for Polar and Marine Research)
Publication date
1 January 2026
Language
EN
Document type
Dataset