{"id":"W2168990858","doi":"10.1144/sp414.8","title":"Chemostratigraphy and magnetic susceptibility of the Late Devonian Frasnian–Famennian transition in western Canada and southern China: implications for carbon and nutrient cycling and mass extinction","year":2015,"lang":"en","type":"article","venue":"Geological Society London Special Publications","topic":"Paleontology and Stratigraphy of Fossils","field":"Earth and Planetary Sciences","cited_by":38,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"","keywords":"Chemostratigraphy; Late Devonian extinction; Extinction event; Devonian; Paleontology; Geology; China; Extinction (optical mineralogy); Cycling; Isotopes of carbon; Geography; Total organic carbon; Chemistry; Demography; Carboniferous; Environmental chemistry; Archaeology","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":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0003064407,0.0001095202,0.0001645502,0.00002530903,0.0002349415,0.00004045997,0.0000778705,0.0001327675,0.0000112944],"category_scores_gemma":[0.00004875057,0.00008258491,0.00003848527,0.0002128165,0.0004833862,0.00009368081,0.000004908444,0.0001437944,3.941226e-8],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.000006585937,"about_ca_system_score_gemma":0.00008953122,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.03970494,"about_ca_topic_score_gemma":0.6764461,"domain_scores_codex":[0.9991515,0.00007261463,0.00023576,0.0002605425,0.00008976335,0.0001898522],"domain_scores_gemma":[0.9994811,0.0001166126,0.00008921269,0.0001197375,0.00005409603,0.0001392572],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.00001866081,0.00001656919,0.9904693,0.00001361176,0.000007366975,5.788092e-8,0.001240092,0.00001336922,0.00008875188,0.000130178,0.00001885954,0.00798312],"study_design_scores_gemma":[0.0004616824,0.0000901752,0.9889737,0.000005026042,0.00001763753,0.000004707117,0.0007131446,0.0009628626,0.000009519376,0.008443027,0.0002282539,0.00009020627],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.988608,0.001708621,0.0001340754,0.008191666,0.00004057835,0.0004266842,0.0001655339,0.00001159248,0.0007132435],"genre_scores_gemma":[0.9991335,0.0001624299,0.000522515,0.00007468521,0.00005827173,0.00001425719,0.00002009643,9.146981e-7,0.0000133396],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.6367412,"threshold_uncertainty_score":0.9666898,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.0159588875920442,"score_gpt":0.2127790855796057,"score_spread":0.1968201979875615,"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."}}