{"id":"W1571253122","doi":"10.1029/2007gc001823","title":"Association of <sup>34</sup>S‐depleted pyrite layers with negative carbonate <i>δ</i><sup>13</sup>C excursions at the Permian‐Triassic boundary: Evidence for upwelling of sulfidic deep‐ocean water masses","year":2008,"lang":"en","type":"article","venue":"Geochemistry Geophysics Geosystems","topic":"Paleontology and Stratigraphy of Fossils","field":"Earth and Planetary Sciences","cited_by":129,"is_retracted":false,"has_abstract":true,"ca_institutions":"Université du Québec à Montréal","funders":"","keywords":"Geology; Upwelling; Pyrite; Diagenesis; Permian; Carbonate; Extinction event; Authigenic; Anoxic waters; Permian–Triassic extinction event; Sulfate; Geochemistry; Sulfide minerals; Total organic carbon; Paleontology; Oceanography; Chemistry; Environmental chemistry","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":[0.0001328524,0.0001543604,0.0001401299,0.0007305807,0.0004398907,0.0004952966,0.0002720581,0.0002553434,0.001139836],"category_scores_gemma":[0.0003979201,0.0002718219,0.0001438512,0.000553534,0.0005267263,0.0002029167,0.0003684811,0.0002250047,0.0001774241],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0004312024,"about_ca_system_score_gemma":0.0004439303,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.01881511,"about_ca_topic_score_gemma":0.02678612,"domain_scores_codex":[0.9999106,0.000006029426,0.00001156904,0.00002985635,0.00001783738,0.0000241089],"domain_scores_gemma":[0.9993736,0.00004134384,0.000299062,0.00002936659,0.0001079989,0.0001485751],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0000602719,0.00001234972,0.9826812,0.00001309523,0.00001822617,0.0002823878,0.0003078782,0.00004611433,0.0152474,0.00002832973,0.00003696479,0.001265762],"study_design_scores_gemma":[0.000001520479,0.00001274711,0.9990023,0.000001203321,0.000003540193,0.0001367838,0.0001654344,0.00005032624,0.000545772,0.00000763314,0.00007140785,0.000001365565],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9996233,0.00001803091,0.00001503033,0.00000820878,6.658715e-7,0.000001612674,0.00006934548,0.000001857529,0.0002619062],"genre_scores_gemma":[0.9996532,0.00002287259,0.00003055942,0.000007031354,0.000002262901,0.00000178213,0.0001530817,0.000001220315,0.0001280195],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.01881511,"threshold_uncertainty_score":0.03741115,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02018781205798777,"score_gpt":0.2186443060869154,"score_spread":0.1984564940289276,"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."}}