Interpreting vegetation change in tropical arid ecosystems from sediment molecular fossils and their stable isotope compositions: A baseline study from the Pilbara region of northwest Australia

Alexandra Rouillard, Paul Greenwood, Kliti Grice, Grzegorz Skrzypek, Shwan Dogramaci, Chris Turney, Pauline Grierson

Research output: Contribution to journalArticle

7 Citations (Scopus)
217 Downloads (Pure)

Abstract

© 2016 Elsevier B.V.Detection of source diagnostic molecular fossils (biomarkers) within sediments can provide valuable insights into the vegetation and climates of past environments. However, hot and arid regions offer particularly challenging interpretive frameworks for reconstructions because baseline data are scarce, organic matter is generally very low and in the inland tropics in particular, sediments are also often subject to flooding and drought. Here, we investigated whether biomarkers and compound-specific δ13C values could be extracted from a late Holocene sediment record from the Fortescue Marsh (Pilbara, northwest Australia) to allow interpretation of past catchment vegetation and hydroclimate. The low total carbon (TC) content (
Original languageEnglish
Pages (from-to)495-507
JournalPalaeogeography, Palaeoclimatology, Palaeoecology
Volume459
DOIs
Publication statusPublished - Oct 2016

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