{'fraction_non_alphanumeric': 0.04888888888888889, 'fraction_numerical': 0.014814814814814815, 'mean_word_length': 4.827586206896552, '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}}
Depth and configuration of the crystalline basement in the Viking Graben area, Northern North Sea

The depth of the crystalline basement in the Viking Graben area has been mapped. The dominant structural feature in the study area is a N–S trending zone approximately 150 km wide, containing a variety of structures (graben, basins and structural highs) and named the ‘Northern North Sea Rift Zone’. The Viking Graben is only one structural element, though a major one, in this zone. The following depth ranges appear to apply: (a) on platforms, basement shelves and major structural highs (1–3 km), (b) in basins (7–9 km maximum depth), (c) in graben (8–10 km maximum depth).