Penny Claire claire.e.penny@durham.ac.uk 0000-0001-9879-9006 Durham University https://ror.org/01v29qb04 Bentley Michael J m.j.bentley@durham.ac.uk 0000-0002-2048-0019 Durham University https://ror.org/01v29qb04 Hodgson Dominic A daho@bas.ac.uk Durham University https://ror.org/01v29qb04 Gröcke Darren R d.r.grocke@durham.ac.uk 0000-0003-2296-7530 Durham University https://ror.org/01v29qb04 Graham Alice alicegraham66@gmail.com Durham University https://ror.org/01v29qb04 McClymont Erin L erin.mcclymont@durham.ac.uk 0000-0003-1562-8768 Durham University https://ror.org/01v29qb04 2026 Multi-proxy dataset from a snow petrel stomach-oil deposit 1401MUM1 of the Theron Mountains, Weddell Sea dataset bundled publication https://doi.pangaea.de/10.1594/PANGAEA.995091 2026-05-20T11:47:21 We present a multi-proxy dataset from a snow petrel stomach-oil deposit, 1401MUM1, from the Theron Mountains (-79.049, -28.329), eastern Weddell Sea region. 1401MUM1 was collected as part of a NERC-funded expedition (2015) from the Theron Mountains, a mountain range in Coats Land. The aim of the analysis is to investigate snow petrel diet during the last 2 ka (late Holocene) and in turn to infer changing sea-ice conditions in the eastern Weddell Sea sector of the Southern Ocean (Penny et al. Antarctic Science, submitted). The data includes results from lipid biomarker analysis (fatty acids, sterols and fatty alcohols), bulk stable isotope compositions (δ¹³C and δ¹⁵N) (Department of Geography, Durham University, Durham, U.K) and non-destructive XRF trace element concentrations (GeoTek Core Scanner, Department of Geography, Durham University, Durham, U.K). The age-depth model is constrained by eight new radiocarbon dates (SUERC - Centre for the Isotope Sciences, University of Glasgow, Glasgow, U.K; University of California-Irvine, California, U.S.A). Penny Claire claire.e.penny@durham.ac.uk 0000-0001-9879-9006 Bentley Michael J m.j.bentley@durham.ac.uk 0000-0002-2048-0019 Hodgson Dominic A daho@bas.ac.uk Gröcke Darren R d.r.grocke@durham.ac.uk 0000-0003-2296-7530 Graham Alice alicegraham66@gmail.com McClymont Erin L erin.mcclymont@durham.ac.uk 0000-0003-1562-8768 2026 Reconstructing late Holocene summer sea-ice variability in the eastern Weddell Sea journal article Antarctic Science https://doi.org/10.1017/S0954102026100662 1-13 -28.261999999999983 -28.261999999999983 -79.03900000000003 -79.03900000000003 -28.261999999999983 -79.03900000000003 2015-01-14T00:00:00 2015-01-14T00:00:00 Horizon 2020 H2020 https://ec.europa.eu/programmes/horizon2020/ https://doi.org/10.13039/501100007601 864637 ANTarctic Sea Ice Evolution from a novel biological archive (ANTSIE) doi:10.3030/864637 Leverhulme Trust https://doi.org/10.13039/501100000275 RL-2019-023 Unlocking evidence for Antarctic sea-ice evolution from a novel biological archive, Web: , Award: Philip Leverhulme Research Leadership Award, https://antsie.webspace.durham.ac.uk/ Natural Environment Research Council NERC http://www.nerc.ac.uk/ https://doi.org/10.13039/501100000270 NE/K003674/1 Reducing the uncertainty in estimates of the sea level contribution from the westernmost part of the East Antarctic Ice Sheet https://gotw.nerc.ac.uk/list_full.asp?pcode=NE%2FK003674%2F1 6 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ Depth, deposit | Depth deposit | Tridecanoic acid, per unit mass total organic carbon | 13:0/TOC | Gas chromatography - Mass spectrometry (GC-MS) | Tetradecanoic acid, per unit mass total organic carbon | 14:0/TOC | Hexadecanoic acid, per unit mass total organic carbon | 16:0/TOC | Octadecanoic acid, per unit mass total organic carbon | 18:0/TOC | Octadecenoic acid, per unit mass total organic carbon | 18:1/TOC | Octadecenoic acid/octadecanoic acid ratio | 18:1/18:0 | Tetradecanoic acid/(tetradecanoic acid + hexadecanoic acid) ratio | 14:0/(14:0+16:0) | Octadecenoic acid/(octadecanoic acid + hexadecanoic acid) ratio | 18.1/(18:1+16:0) | Octadecenoic acid/tetradecanoic acid ratio | 18:1/14:0 | Sample ID | Barium | Ba | Balance | Elements, other | Elements oth | Niobium | Nb | X-ray fluorescence spectrometry (portable XRF) | Zirconium | Zr | Strontium | Sr | Rubidium | Rb | Zinc | Zn | Iron | Fe | Manganese | Mn | Chromium | Cr | Vanadium | V | Titanium | Ti | Calcium | Ca | Potassium | K | Aluminium | Al | Phosphorus | P | Silicon | Si | Chlorine | Cl | Sulfur | S | δ15N | Carbon and hydrogen and nitrogen and sulfur and oxygen (CHNSO) elemental analyzer, Costech Analytical Technologies, ECS 4010 | δ13C | Carbon, organic, total | TOC | Carbon, organic, total, flux | TOC flux | Carbon/Nitrogen ratio | C/N | Campestanol, per unit mass total organic carbon | Campestanol/TOC | Cholesterol, per unit mass total organic carbon | Cholesterol/TOC | (FAlc) | Sample comment | Calendar age | Cal age | Age, 14C calibrated | Multi-Sensor Core Logger (MSCL-XYZ), GEOTEK | Copper | Cu | Tellurium | Te | Bromine | Br | Nickel | Ni | Tin | Sn | Deposit ID | Identification | ID | Laboratory code/label | Lab label | Carbon-14, modern | pMC | 1σ | Carbon-14, modern, error | pMC e | Calendar age, median | Cal age median | 2 s.d | Calendar age, standard deviation | Cal age std dev | ΔR-Holocene 670 ± 50 yr, 2σ | Age, 14C calibrated, MARINE20 (Heaton et al., 2020) | Calendar age, maximum/old | Cal age max | Calendar age, minimum/young | Cal age min Antarctica fatty acids fatty alcohols palaeoclimate reconstruction Stable carbon isotope (δ13C) stable nitrogen isotope (δ15N) stomach oil deposits Weddell Sea method10006 method14013 method15719 method279 method415 method6939 param102571 param132179 param143777 param143779 param14698 param15362 param15389 param15427 param1547 param16065 param17863 param179993 param18011 param18477 param189024 param19349 param19989 param21855 param24619 param31593 param31595 param31597 param45206 param502789 param517079 param540692 param54261 param542644 param542677 param542678 param542679 param542680 param542681 param542682 param542683 param54935 param55953 param6210 param6212 param6213 param67 param675 param678 param680 param681 param7056 param7166 param7167 param78609 param79438 param79862 param79866 param79867 param81 param817 param82 param87 param88 pi111161 pi29583 author110389 author111161 author29583 author31943 author32987 author55113 award3718 award3719 award924 funder1797 funder20475 funder20950 geocode1599 geocode1600 geocode1601 inst21356 journal1222 license21 ref133682 term47165 term47208 term47873 term50432 term644 term68431 term71783 term72012