Spoth-Ascencao Meghan 0009-0000-8750-0099 University of Maine UMaine http://www.umaine.edu/ https://ror.org/01adr0w49 Hall Brenda L University of Maine UMaine http://www.umaine.edu/ https://ror.org/01adr0w49 Diefendorf Aaron F aaron.diefendorf@uc.edu 0000-0002-4909-9756 University of Cincinnati https://ror.org/01e3m7079 Lowell Thomas V lowelltv@ucmail.uc.edu 0000-0001-7826-0636 University of Cincinnati https://ror.org/01e3m7079 Russell Joellen jrussell@email.arizona.edu University of Arizona UA http://www.arizona.edu/ https://ror.org/03m2x1q45 Corcoran Megan C megcorcor@gmail.com 0000-0001-9608-2204 University of Cincinnati https://ror.org/01e3m7079 Brickle Paul 0000-0002-9870-3518 University of Aberdeen ABDN http://www.abdn.ac.uk/ https://ror.org/016476m91 Gill Jacquelyn jacquelyn.gill@maine.edu University of Maine UMaine http://www.umaine.edu/ https://ror.org/01adr0w49 2026 A 13,000-year reconstruction of Southern Hemisphere Westerlies using South Atlantic pollen and plant wax isotopes dataset bundled publication https://doi.pangaea.de/10.1594/PANGAEA.993811 2026-04-27T06:25:52 The pollen assemblage record from Tarn 2 (600 m asl), East Falkland spans 2,300 to 12,700 cal BP. Samples were processed, IDed, and counted with quantitative black ceramic microspheres at the University of Maine. The assemblage has 17 taxa identified with Nothofagus, Podocarpus, and Ephedra noted as non-native to the local island ecology. Data is presented as raw counts per slide, percentage (%) of the upland sum, pollen concentration (grains/cm3), and pollen accumulation rates (grains/cm2/yr). The upland sum includes all taxa except trilete, monolete, and Cyperaceae (due to aquatic). The plant wax biomarkers (long chain n-alkanes) from Tarn 2 also spans 2,300 to 12,700 cal BP. Samples were processed at the University of Cincinnati. Alkanes were isolated by chain length with concentration measured as ug/g of sediment. For each chain length, stable isotopes were measure then reported as VSMOW for hydrogen (dD) and VDPB (d13C) isotopes. The age model for Tarn 2 is constrained by seven macrofossil radiocarbon dates. The associated age model for the pollen assemblage accumulation rates was constructed with INTCAL20 under R.Bacon. The age model is published in Spoth, M., Hall, B., Lowell, T., Diefendorf, A.F., Corcoran, M.C. and Brickle, P., 2023. Tracking the southern hemisphere westerlies during and since the last glacial maximum with multiproxy lake records from the Falkland Islands (52 S). Quaternary Science Reviews, 311, p.108135 (doi:10.1016/j.quascirev.2023.108135). Spoth-Ascencao Meghan 0009-0000-8750-0099 Hall Brenda L Gill Jacquelyn jacquelyn.gill@maine.edu et al. accepted A 13,000-year record of the Southern Hemisphere Westerlies inferred from pollen and plant wax isotopes from the South Atlantic Paleoceanography and Paleoclimatology Spoth-Ascencao Meghan 0009-0000-8750-0099 Hall Brenda L Lowell Thomas V lowelltv@ucmail.uc.edu 0000-0001-7826-0636 Diefendorf Aaron F aaron.diefendorf@uc.edu 0000-0002-4909-9756 Corcoran Megan C megcorcor@gmail.com 0000-0001-9608-2204 Brickle Paul 0000-0002-9870-3518 2023 Tracking the southern hemisphere westerlies during and since the last glacial maximum with multiproxy lake records from the Falkland Islands (52 °S) journal article Quaternary Science Reviews 311 https://doi.org/10.1016/j.quascirev.2023.108135 108135 -58.826867 -58.826867 -51.696367 -51.696367 -58.826867 -51.696367 7 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ Sample code/label | Sample label | n-Alkane C12, per unit sediment mass | C12/sed | see reference(s) | n-Alkane C13, per unit sediment mass | C13/sed | n-Alkane C14, per unit sediment mass | C14/sed | n-Alkane C15, per unit sediment mass | C15/sed | n-Alkane C16, per unit sediment mass | C16/sed | n-Alkane C17, per unit sediment mass | C17/sed | n-Alkane C18, per unit sediment mass | C18/sed | n-Alkane C19, per unit sediment mass | C19/sed | n-Alkane C20, per unit sediment mass | C20/sed | n-Alkane C21, per unit sediment mass | C21/sed | n-Alkane C22, per unit sediment mass | C22/sed | n-Alkane C23, per unit sediment mass | C23/sed | n-Alkane C24, per unit sediment mass | C24/sed | n-Alkane C25, per unit sediment mass | C25/sed | n-Alkane C26, per unit sediment mass | C26/sed | n-Alkane C27, per unit sediment mass | C27/sed | n-Alkane C28, per unit sediment mass | C28/sed | n-Alkane C29, per unit sediment mass | C29/sed | n-Alkane C30, per unit sediment mass | C30/sed | n-Alkane C31, per unit sediment mass | C31/sed | n-Alkane C32, per unit sediment mass | C32/sed | n-Alkane C33, per unit sediment mass | C33/sed | n-Alkane C34, per unit sediment mass | C34/sed | n-Alkane C35, per unit sediment mass | C35/sed | n-Alkane C36, per unit sediment mass | C36/sed | n-Alkane C37, per unit sediment mass | C37/sed | n-Alkane C38, per unit sediment mass | C38/sed | n-Alkane C39, per unit sediment mass | C39/sed | n-Alkane C40, per unit sediment mass | C40/sed | vs. VPDB | n-Alkane C23, δ13C | C23 δ13C | n-Alkane C25, δ13C | C25 δ13C | n-Alkane C27, δ13C | C27 δ13C | n-Alkane C29, δ13C | C29 δ13C | n-Alkane C31, δ13C | C31 δ13C | n-Alkane C33, δ13C | C33 δ13C | vs. VSMOW | n-Alkane C23, δD | C23 δD | n-Alkane C25, δD | C25 δD | ISD | n-Alkane C25, δD, standard deviation | C25 δD std dev | n-Alkane C27, δD | C27 δD | n-Alkane C27, δD, standard deviation | C27 δD std dev | n-Alkane C29, δD | C29 δD | n-Alkane C29, δD, standard deviation | C29 δD std dev | n-Alkane C31, δD | C31 δD | n-Alkane C31, δD, standard deviation | C31 δD std dev | n-Alkane C33, δD | C33 δD | n-Alkane C33, δD, standard deviation | C33 δD std dev | Laboratory code/label | Lab label | Age, dated | Age dated | Age, radiocarbon | Age, dated, standard deviation | Age dated std dev | Age, minimum/young | Age min | Age, 14C calibrated, Bacon and IntCal20 | Age, maximum/old | Age max | Age, median | Age median | Age, mean | Age mean | Upland Sum | Asteraceae | Asterac | Rosaceae | Rosae | Bolax | Poaceae | Poac | Podocarpus | Ephedra | Nothofagus | Cyperaceae | Cyperac | Lycopodium | Lyc | Spores, trilete undifferentiated | tril.ud | Spores, monolete | Spores monolete | Caryophyllaceae | Cphae | Ericaceae | Ericac | Astelia pumila | A. pumila | Drapetes | Apiaceae | Gunnera | Asteraceae, flux | Asteraceae flux | Rosaceae, flux | Rosaceae flux | Bolax, flux | Bolax flux | Poaceae, flux | Poac flux | Podocarpus, flux | Podocarpus flux | Ephedra, flux | Ephedra flux | Nothofagus, flux | Nothofagus flux | Cyperaceae, flux | Cyperaceae flux | Lycopodium, flux | Lycopodium flux | undiff | Spores, trilete, flux | trilete flux | Spores, monolete, flux | Spores mono flux | Caryophyllaceae, flux | Caryoph flux | Ericaceae, flux | Ericaceae flux | Astelia pumila, flux | Astelia pumila flux | Drapetes, flux | Drapetes flux | Apiaceae, flux | Apiaceae flux | Gunnera, flux | Gunnera flux | Pollen, upland, flux | Pollen upland flux | Pollen, cushion | Pollen cushion | travel grains | Pollen, long distance, flux | Pollen long distance flux | Moss and ferns, flux | Moss + ferns flux | Herbs, flux | Herbs flux | Eph | Spores trilete undiff | Spores mono | Pollen, upland | Pollen upland | Pollen, long distance | Pollen long dis | Moss and ferns | Moss + ferns | Herbs | Accumulation rate | Sedimentation rate per year | SR | Marker | Astae | Counting, palynology | Pod | Cypae | Eriae | Apiae | Pollen, herbs | Pollen herbs alkanes Biomarker Lake sediment core Long-chain n-alkanes Pollen South Altantic south westerly 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