Chronological and sedimentological data from Potter Peninsula, South Shetland Islands. ...

• Main Authors: Bentley, Michael, Roberts, Stephen, Heredia Barion, Pablo, Strelin, Jorge, Spiegel, Cornelia, Niedermann, Samuel, Wacker, Lukas
• Format: Dataset
• Language: English
• Published: NERC EDS UK Polar Data Centre 2022
• Subjects: "EARTH SCIENCE","CRYOSPHERE","GLACIERS/ICE SHEETS","GLACIERS"; "EARTH SCIENCE","SOLID EARTH","GEOMORPHIC LANDFORMS/PROCESSES","GLACIAL PROCESSES"; Deglaciation; South Shetland islands; geomorphological mapping; glacial readvance; radiocarbon dating; stratigraphy; Antarctic; Antarctic Peninsula; Argentino; islas Shetland del Sur; King George Island; Potter Cove; Potter Peninsula; Shetland del Sur; South Shetland Islands; The Antarctic; Alfred Wegener Institute; Antarc*; antartic*
• Online Access: https://dx.doi.org/10.5285/4671a42f-7a2e-4883-948c-ef6b26dd41c9; https://data.bas.ac.uk/full-record.php?id=GB/NERC/BAS/PDC/01687

The dataset comprises of stratigraphic chronological and sedimentological data from Potter Peninsula, King George Island, South Shetland Islands. The data have been used to constrain deglaciation and glacier dynamics on Potter Peninsula. 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 ... : Mapping and Stratigraphic section sample collection Mapping was undertaken in ARC-GIS, with final layouts achieved in Adobe Illustrator v. 26.2.1 or CorelDRAW v. 2020. Lithostratigraphic descriptions and radiocarbon sampling were undertaken at an outer peninsula stratigraphic profile referred to as "new Pingfo II" and a new river section adjacent to the 'Potter Cove section' sampled by Sugden and John (1973). We also sampled terrestrial moss samples for radiocarbon dating from a recently exposed 'Inland outcrop' which is located inside the 1956 CE limit, around 700 m from the active glacier front. The stratigraphic sections were characterised using textural criteria, fabric, composition, sedimentary structures, and grain size analysis to determine the relationships between different depositional units. Radiocarbon (C-14) dating: Twenty-one Accelerator Mass Spectrometry (AMS) radiocarbon (C-14) ages were obtained from seaweed, marine mollusc shells, penguin and undetermined bones, remnants of terrestrial ...