{'fraction_non_alphanumeric': 0.019593613933236574, 'fraction_numerical': 0.0043541364296081275, 'mean_word_length': 4.868085106382979, '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': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Large-scale debrites and submarine landslides on the Barra Fan, west of Britain

Abstract The Barra Fan is a large Neogene to Pleistocene composite fan that has built out into the deep-water basin of the Rockall Trough west of Britain. The bulk of the landward depocentre of the Barra Fan takes the form of a relatively undisturbed shelf-margin wedge, in places more than 600 m thick, that is perched above the deep-water basin and, together with the Donegal Fan, partially engulfs the Hebrides Terrace Seamount. A continuous series of slope-front channels and gullies incise into the shelf-margin wedge of the northernmost Barra Fan and are the likely transport paths for small- to medium-scale debrites found on the middle and lower slope-front. In contrast, at least four large-scale submarine landslide events making up the Peach Slide appear to have translated the bulk of the slope-front of the northern Barra Fan to the northwest, so that debrites and hemipelagic sediments exhibit maximum composite thicknesses of approximately 450 m on the deep-water basin floor of the eastern Rockall Trough. The extent and volume of successive large-scale debrite units decrease with age. From an interpretation of a limited historical dataset it is thought that the ground accelerations from earthquakes have been sufficient to trigger slope-front instability and sediment transfer.