{'fraction_non_alphanumeric': 0.025689819219790674, 'fraction_numerical': 0.009514747859181731, 'mean_word_length': 5.299401197604791, '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}}
Archaeology of rock art at Dalakngalarr 1, centralwestern Arnhem Land

In 2011, we began researching the subsurface archaeology, geomorphology and rock art ofDalakngalarr 1, a moderately sized rock shelter on top of the central-western Arnhem Landplateau in Jawoyn Country. Here, four lines of evidence give relative or absolute ages for rockart:1. Archaeological excavations adjacent to a boulder that contains a painting of a red macropodreveal when that boulder attained its present position, so the red macropod must have beenpainted sometime afterwards.2. Paintings of axe/hoes with metal heads indicate that they were painted during the Europeancontact period. A nearby group of X-ray images are painted in comparable pigments,suggesting that they are contemporaneous with the axe/hoes.3. Geomorphological evidence suggests that parts of the site’s ceiling collapsed at datable timesin the past, indicating that the art on that roof must post-date the roof collapse.4. Direct accelerator mass spectrometry (AMS) radiocarbon dates on beeswax art.