Journal
ORGANIC GEOCHEMISTRY
Volume 92, Issue -, Pages 84-91Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.orggeochem.2015.12.011
Keywords
TEX86; U-37(K '); Paleotemperature proxies; Gaussian peak detection
Categories
Funding
- US National Science Foundation [OCE-1203892]
- Directorate For Geosciences
- Division Of Ocean Sciences [1636445] Funding Source: National Science Foundation
Ask authors/readers for more resources
The relative abundances of archaeal glycerol dialkyl glycerol tetraether (GDGT) compounds (TEX86) and alkenone lipids (UK37K') are commonly used paleoceanographic proxies for temperature. These proxies are analyzed by high-performance liquid chromatography (HPLC) and gas chromatography (GC) methods, respectively, and traditionally, the peaks corresponding to the individual compounds are integrated by hand. Here, we introduce a MATLAB software package called ORIGAmI (ORganIc Geochemistry peAk Integration) that allows for automated, reproducible determination of these indices and quantification of lipid concentrations. The method is based on modeling the peaks with individual Gaussian curves. Comparisons with manually integrated data demonstrate that the method is accurate and precise. Furthermore, automating the peak detection and quantification process reduces both analysis time and user error. (C) 2016 Published by Elsevier Ltd.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available