{"id":"W3177966624","doi":"10.1038/s41467-021-24419-8","title":"Fingerprinting the Cretaceous-Paleogene boundary impact with Zn isotopes","year":2021,"lang":"en","type":"article","venue":"Nature Communications","topic":"Geological and Geochemical Analysis","field":"Earth and Planetary Sciences","cited_by":13,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Alberta","funders":"National Science Foundation","keywords":"Geology; Sedimentary rock; Isotope; Weathering; Isotopic signature; Geochemistry; Diagenesis; Meteorite; Isotopes of oxygen; Carbonate; Ejecta; Mineralogy; Chemistry; Astrobiology","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":[0.00004718647,0.0002180245,0.000125322,0.001433178,0.0003811571,0.000483733,0.0001709577,0.0002249403,0.001678661],"category_scores_gemma":[0.0001727952,0.0001217608,0.00007945685,0.0008010128,0.000337398,0.0002110037,0.0003677205,0.0001301694,0.0003551185],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0002817911,"about_ca_system_score_gemma":0.0001567117,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.01597979,"about_ca_topic_score_gemma":0.02835674,"domain_scores_codex":[0.9999536,0.000001771937,0.000002330651,0.00001608289,0.00001334284,0.00001279567],"domain_scores_gemma":[0.9999442,0.000005067148,0.00001627644,0.000005028895,0.00001768403,0.00001172404],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"observational","study_design_scores_codex":[0.0003176117,0.00001778968,0.3973694,0.00007581659,0.00005875702,0.0006169894,0.0008494328,0.0002569423,0.5841621,0.0002576061,0.0001515309,0.01586609],"study_design_scores_gemma":[0.000002717532,0.00002002169,0.9771404,0.000007190479,0.00001212603,0.0002594853,0.000240191,0.0002871049,0.02060714,0.00004995958,0.001369,0.000004564448],"study_design_candidate":"observational","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9971094,0.0001282101,0.0002726211,0.000007518787,0.000002426081,0.000003392148,0.0003300434,0.00002542069,0.002121127],"genre_scores_gemma":[0.9983677,0.000112547,0.0005034449,0.000009970825,0.000001723142,0.000002725731,0.0003521064,0.00001413275,0.0006356974],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.01597979,"threshold_uncertainty_score":0.03177357,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01380660520277499,"score_gpt":0.2476988763268947,"score_spread":0.2338922711241197,"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."}}