DOI: 10.5285/a89028f1-76d0-41f4-bee0-021633a8b0ed
title: Data compilation for Holocene glacial readvance from the Fildes Peninsula, South Shetland Islands, northern Antarctic Peninsula.

description: The dataset comprises of chronostratigraphic data from the Fildes Peninsula, King George Island, South Shetland Islands. The data have been used to constrain deglaciation and climate-glacier dynamics on the Fildes Peninsula. These data include C-14 density probability phases. Data was compiled with with Potter Peninsula and King George Island data and a non-parametric phase model applied. Data collected in this study were funded by: Centro de Investigaciones en Ciencias de la Tierra (CICTERRA), the Direccion Nacional del Antartico/Instituto Antartico Argentino (DNA/IAA) in the framework of the Project PICTA, 2011 - 0102, IAA 'Geomorfologia y Geologia Glaciar del Archipielago James Ross e Islas Shetland del Sur, Sector Norte de la Peninsula Antartica'; the Alfred Wegener Institute (AWI) research program Polar regions and Coasts in a changing Earth System (PACES II); IMCONet (FP7 IRSES, action no. 318718); the Natural Environment Research Council (NERC/BAS-CGS Grant no.81); the NERC/BAS science programmes CACHE-PEP: Natural climate variability - extending the Americas palaeoclimate transect through the Antarctic Peninsula to the pole and GRADES-QWAD: Quaternary West Antarctic Deglaciations. We thank the crews of the Argentine research station 'Carlini' and the adjoined German Dallmann-Labor (AWI) Laboratory, the Uruguayan research station 'Artigas', the Russian Bellingshausen Station, the Chinese Great Wall Station, Base Presidente Eduardo Frei Montalva, the Brazilian Navy Almirante Maximiano, the UK Navy HMS Endurance and NERC/BAS James Clark Ross for logistical support during the 2006, 2011, 2014 and 2015 field seasons.
description: Compilations of new and published age data constraining glacier advance, retreat and aquatic moss layers in lakes from the South Shetland Islands. New and published chronostratigraphic data constraining Holocene glacier readvances from the Fildes Peninsula (n=43), Potter Peninsula (n=29), and KGI (n=76) were compiled and a non-parametric phase model (i.e., a probabilistic version of the Oxcal SUM command) was applied to each dataset using the Bchron v. 4.7.6 in R (Haslett and Parnell, 2008; Parnell, 2021).The Rcarbon package v. 1.4.2 (Bevan, 2021) was used for data analysis. Additional statistical analysis was undertaken, using R v. 4.1.0/RStudio v. 1.4.1717 (primarily packages Tidyverse, ggplot2, Vegan, Rioja, Ggally v. 2.1.2, RBacon, Rcarbon, Bchron), Sigmaplot v. 14.0, C2 (Juggins, 2007) and MATLAB v. R2021a. Code, data, all packages used, and package references, can be found at: https://github.com/stever60/Fildes_Peninsula and https://github.com/stever60/Potter_Peninsula. The data were used in data analysis in the following manuscripts to constrain deglaciation and glacier dynamics on Potter Peninsula and Fildes Peninsula, King George Island South Shetland Islands: Heredia Barion P, Roberts SJ, Spiegel C, Binnie SA, Wacker L, Davies J, et al. (submitted - a) Mid-late Holocene deglaciation and glacier readvances on the Fildes Peninsula, King George Island, NW Antarctic Peninsula. The Holocene. Heredia Barion P, Strelin JA, Roberts SJ, Spiegel C, Wacker L, Niedermann S, et al. (submitted - b). Holocene glacial dynamics and geomorphology of Potter Peninsula, King George Island (NW Antarctic Peninsula). Frontiers in Earth Science. Density phases produced by similar analysis of published SSI-wide data were less well-defined, likely reflecting local glacier influences and larger errors for some data, and not considered further.