Fletcher Michael-Shawn 0000-0002-1854-5629 University of Melbourne Romano Anthony anthony.romano@unimelb.edu.au University of Melbourne Maezumi Shira Yoshi 0000-0002-4333-1972 Max Planck Institute of Geoanthropology https://ror.org/00js75b59 2026 Fourier-transform infrared (FTIR) spectra of sedimentary charcoal fragments from Purghagoolah (Lake Elusive), southeastern Australia, for fire-temperature reconstruction dataset https://doi.org/10.1594/PANGAEA.995749 2026-07-17T06:21:11 https://doi.org/10.1594/PANGAEA.995756 This table provides mid-infrared absorbance spectra of individual charcoal fragments isolated from a 1 m sediment core at Purghagoolah (Lake Elusive), a lake of approximately 40 ha and 21 m depth in Croajingolong National Park, Gippsland, southeastern Australia, on Gunaikurnai Country (37°44'50"S, 149°27'9"E; decimal -37.747222, 149.452500, WGS84; 50 m a.s.l.), cored on 9 February 2021 with a Universal Corer (Aquatic Instruments), used to reconstruct past fire (pyrolysis) temperature. Approximately 20 charcoal fragments per level were isolated from undigested sediment, and transmission FTIR spectra were acquired on a Nicolet iN10 MX infrared microscope using OMNIC Picta software over the mid-infrared range. Each row is one fragment, identified by its sample age (a BP), with absorbance reported at each wavenumber from 951 to 3499 cm-1. The spectra were compared against a modern reference spectral library (provided separately in this submission) by analogue matching to estimate maximum pyrolysis temperature. A total of 1,092 fragment spectra are included. Fletcher Michael-Shawn 0000-0002-1854-5629 et al. submitted Australia's current wildfire crisis linked to colonial land-use change Nature 149.4525 149.4525 -37.747222 -37.747222 149.4525 -37.747222 2021-02-09T00:00:00 2021-02-09T00:00:00 50.0 50.0 Purghagoolah -37.747222 149.4525 Lake Elusive, Victoria, Australia 50.0 2021-02-09T00:00:00 Universal Corer, Aquatic Instruments UC 2 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ Text file TEXT Fletcher Michael-Shawn 0000-0002-1854-5629 TEXT Text file (File Size) TEXT (Size) Bytes Fletcher Michael-Shawn 0000-0002-1854-5629 TEXT (Size) [Bytes] Text file (Media Type) TEXT (Type) Fletcher Michael-Shawn 0000-0002-1854-5629 TEXT (Type) File content Content Fletcher Michael-Shawn 0000-0002-1854-5629 Content CurationLevelB Basic curation https://wiki.pangaea.de/wiki/Curation_levels citable analogue matching Charcoal fire temperature FTIR Infrared Spectroscopy Lake Elusive palaeofire Purghagoolah pyrolysis temperature southeastern Australia author118176 author27272 author81762 author88475 curlevel20 event3414603 geocode1599 geocode1600 geocode1601 geocode8128 inst21421 inst21754 journal11658 license21 method19333 param512818 param99583 pi81762 ref140457 term48177 term50627 term664 term78229 term78237 term78238 term78239 term78240 term78265 term78267 term78268