Abstract
Glycerol dialkyl glycerol tetraether (GDGT)-based proxies are increasingly used in modern carbon
cycling and palaeoenvironmental investigations. It is therefore crucial to examine the robustness
(sources, transport and degradation) of all GDGT-based proxies in continental margins, where sedimentation
rates and extent of carbon cycling are high. We have analyzed the distributions of GDGTs
in surface
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