{"id":"W4417218646","doi":"10.1130/abs/2025am-9020","title":"Detrital Zircon Age and Geochemical Constraints on Provenance of Cambrian Sandstones from Western Newfoundland","year":2025,"lang":"","type":"article","venue":"Abstracts with programs - Geological Society of America","topic":"Geological and Geochemical Analysis","field":"Earth and Planetary Sciences","cited_by":0,"is_retracted":false,"has_abstract":false,"ca_institutions":"","funders":"","keywords":"Zircon; Provenance; Precambrian; Proterozoic; Paleozoic; Sedimentary rock","routes":{"ca_aff":false,"ca_fund":false,"ca_venue":false,"about_ca":true,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0003583022,0.0001954515,0.0002561097,0.002297822,0.001347135,0.000730098,0.0005761209,0.0001762115,0.002040636],"category_scores_gemma":[0.00062965,0.0002234929,0.000172241,0.002278607,0.0006281889,0.0003515996,0.0006991116,0.000226744,0.0003419872],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.003526125,"about_ca_system_score_gemma":0.002315339,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.8847037,"about_ca_topic_score_gemma":0.9671408,"domain_scores_codex":[0.999796,0.00001416131,0.00002220626,0.0000566064,0.00002919812,0.00008195081],"domain_scores_gemma":[0.9992239,0.00007950098,0.0001910351,0.00005379182,0.0003565828,0.00009509541],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0002302206,0.00002098914,0.9748827,0.00003797418,0.00006056913,0.0002423683,0.001904483,0.0001988053,0.008704697,0.0001678623,0.0004905405,0.01305869],"study_design_scores_gemma":[0.000001806938,0.000004819692,0.9987821,0.000006481121,0.000008774503,0.00002479715,0.0003658882,0.00003656437,0.0002459543,0.000004573138,0.0005165811,0.000001604193],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9975884,0.0001492469,0.00009180656,0.00002676712,0.00000203119,0.000003422922,0.0009488351,0.000005595746,0.001183867],"genre_scores_gemma":[0.9977142,0.00008181035,0.0001689057,0.00002250222,0.00000123154,0.000003738433,0.0008757902,0.000004238191,0.001127665],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.1152963,"threshold_uncertainty_score":0.2319506,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01292772557951929,"score_gpt":0.221958120029245,"score_spread":0.2090303944497257,"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."}}