{'fraction_non_alphanumeric': 0.011503067484662576, 'fraction_numerical': 0.003067484662576687, 'mean_word_length': 5.624365482233503, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 1, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Surficial geology and geomorphology of the þórisjökull plateau icefield, west-central Iceland

Abstract Please click here to download the map associated with this article. A surficial geology and geomorphology map of þórisjökull, west-central Iceland, serves the dual purpose of providing an historical archive of Little Ice Age glacier recession in a warming global climate and monitoring tool for geomorphologists studying the temporal evolution of glacial landform-sediment assemblages or landsystems. The map is based on 1999 colour aerial photography that includes ground survey control markers tied in by geodetic quality GPS receivers to the Icelandic control network. The base data for the glacial and topographic information was compiled from the aerial photographs and a mosaic of digitally orthorectified images. With respect to the plateau icefield glacial landsystem, the map displays seven colour coded surficial geology units in addition to bedrock and various geomorphological features depicted by specific symbols. As an exemplar of the plateau icefield landsystem, the þórisjökull map serves as an excellent modern analogue for reconstructions of glaciation in upland plateau terrains, particularly those in which plateaux host ice masses during the early and late stages of glaciation.