{"id":"W4410242392","doi":"10.1007/s00710-025-00917-1","title":"Age and mantle source characteristics of kimberlite-derived zircons from Brazil revealed by U–Pb, Hf and O isotopes","year":2025,"lang":"en","type":"article","venue":"Mineralogy and Petrology","topic":"Geological and Geochemical Analysis","field":"Earth and Planetary Sciences","cited_by":4,"is_retracted":false,"has_abstract":false,"ca_institutions":"University of Alberta","funders":"Coordenação de Aperfeiçoamento de Pessoal de Nível Superior","keywords":"Kimberlite; Geochemistry; Mantle (geology); Geology; Isotope; Nuclear physics; Physics","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":[0.0001346758,0.0001663334,0.000137866,0.0009986921,0.0003197961,0.0004775997,0.0002234519,0.0001629993,0.001271581],"category_scores_gemma":[0.0003253418,0.0001755409,0.0001496799,0.0005766084,0.0002306078,0.0002067483,0.0003401312,0.00009663661,0.0002807244],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0003731386,"about_ca_system_score_gemma":0.000242977,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.05167412,"about_ca_topic_score_gemma":0.1068518,"domain_scores_codex":[0.999951,0.000003063236,0.000005511349,0.00001765826,0.000007202495,0.00001558669],"domain_scores_gemma":[0.9999019,0.00001401808,0.0000265766,0.00001128264,0.00003403717,0.00001213025],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.0004951056,0.00003098828,0.7960905,0.00008461054,0.00007763403,0.0004889563,0.002873928,0.0002475246,0.1753811,0.000686796,0.0001636094,0.02337921],"study_design_scores_gemma":[0.000004336583,0.00002531264,0.9943219,0.000006937973,0.00002847128,0.0001872316,0.0004861145,0.0001352513,0.003552266,0.00005486622,0.001193954,0.000003233005],"study_design_candidate":"bench_or_experimental","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9979912,0.0001705065,0.000134824,0.00001106848,0.000001117724,0.00000279604,0.0004912106,0.000004648794,0.001192703],"genre_scores_gemma":[0.9989938,0.00009494295,0.0001075774,0.000004651783,8.874401e-7,0.000001372779,0.0003665418,0.000003968501,0.000426287],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.05167412,"threshold_uncertainty_score":0.1027467,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.004318894549035884,"score_gpt":0.1891241147802307,"score_spread":0.1848052202311948,"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."}}