publication . Article . Preprint . 2019

Terrestrial environmental change across the onset of the PETM and the associated impact on biomarker proxies: A cautionary tale

Gordon Neil Inglis; Alexander Farnsworth; Margaret Collinson; Matthew Carmichael; B. David. A. Naafs; Dan Lunt; Paul J Valdes; Richard D. Pancost;
Open Access English
  • Published: 28 Apr 2019
  • Country: United Kingdom
Abstract
<p>The Paleocene-Eocene Thermal Maximum (PETM; ~ 56 million years ago (Ma) is the most severe carbon cycle perturbation event of the Cenozoic. Although the PETM is associated with warming in both the surface (~up to 8°C) and deep ocean (~up to 5°C), there are relatively few terrestrial temperature estimates from the onset of this interval. The associated response of the hydrological cycle during the PETM is also poorly constrained. Here, we use biomarker proxies (informed by models) to reconstruct temperature and hydrological change within the Cobham Lignite (UK) during the latest Paleocene and early PETM. Previous work at this site indicates warm terrestrial te...
Subjects
free text keywords: Biomarkers, Eocene, GDGTs, Hydrology, Lignite, Peat, bepress|Physical Sciences and Mathematics, bepress|Physical Sciences and Mathematics|Earth Sciences, bepress|Physical Sciences and Mathematics|Earth Sciences|Biogeochemistry, bepress|Physical Sciences and Mathematics|Earth Sciences|Geochemistry, bepress|Physical Sciences and Mathematics|Earth Sciences|Geology, EarthArXiv|Physical Sciences and Mathematics, EarthArXiv|Physical Sciences and Mathematics|Earth Sciences, EarthArXiv|Physical Sciences and Mathematics|Earth Sciences|Biogeochemistry, EarthArXiv|Physical Sciences and Mathematics|Earth Sciences|Geochemistry, EarthArXiv|Physical Sciences and Mathematics|Earth Sciences|Geology, Global and Planetary Change, Oceanography, Geology, Environmental change, Deep sea, Paleothermometer, Paleoclimatology, Water cycle, Cenozoic, Carbon cycle, Climatology
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