{"id":"W4415666829","doi":"10.1016/j.precamres.2025.107954","title":"Evidence for proximal ejecta from the 2.02 Ga Vredefort impact event","year":2025,"lang":"en","type":"article","venue":"Precambrian Research","topic":"Planetary Science and Exploration","field":"Physics and Astronomy","cited_by":1,"is_retracted":false,"has_abstract":true,"ca_institutions":"Western University; Iron Ore Company (Canada)","funders":"National Research Foundation","keywords":"Ejecta; Impact crater; Impact structure; Breccia; Shock metamorphism; Metamorphic rock; Geochronology; Stratigraphy","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.00007852411,0.0002809839,0.000159469,0.0007226553,0.0005686667,0.0006566416,0.0002993836,0.0004980735,0.003663211],"category_scores_gemma":[0.0003455878,0.000218515,0.0001732261,0.0005145815,0.0003678721,0.0001938069,0.0003326354,0.0003153344,0.0009389682],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0005982281,"about_ca_system_score_gemma":0.000400072,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.05564981,"about_ca_topic_score_gemma":0.1316943,"domain_scores_codex":[0.9999149,0.00000277321,0.00000389661,0.00002430207,0.00002893433,0.00002518955],"domain_scores_gemma":[0.999836,0.00001499974,0.00005552519,0.00001812513,0.00004274831,0.00003252895],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0007262477,0.0001057635,0.7309624,0.0004217455,0.0002023025,0.01579302,0.004765086,0.001798115,0.1694498,0.002418819,0.006494088,0.06686258],"study_design_scores_gemma":[0.000005372447,0.00002820278,0.9827936,0.00002494098,0.00001198888,0.001471202,0.0002032709,0.00009765542,0.00119416,0.00002567058,0.01413818,0.000005759722],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9587481,0.0009271449,0.0006145699,0.0001311413,0.00004659419,0.00003329061,0.001639367,0.0001152582,0.03774445],"genre_scores_gemma":[0.9894163,0.0002582392,0.0005376826,0.00005208181,0.00001110759,0.000008062639,0.00161162,0.00002456926,0.008080241],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.05564981,"threshold_uncertainty_score":0.1106518,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.1708349478361258,"score_gpt":0.4411620979118485,"score_spread":0.2703271500757227,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}