{"id":"W2156191039","doi":"10.1086/677046","title":"Nanodiamond-Rich Layer across Three Continents Consistent with Major Cosmic Impact at 12,800 Cal BP","year":2014,"lang":"en","type":"article","venue":"The Journal of Geology","topic":"Geology and Paleoclimatology Research","field":"Earth and Planetary Sciences","cited_by":74,"is_retracted":false,"has_abstract":true,"ca_institutions":"Geoscience BC","funders":"","keywords":"Kimberlite; Geology; Nanodiamond; Diamond; Carbon fibers; Isotopes of carbon; Radiocarbon dating; Younger Dryas; Sediment; Platinum group; Soot; Geochemistry; Total organic carbon; Paleontology; Mantle (geology); Glacial period; Environmental chemistry; Chemistry; Materials science; Platinum","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":[0.0001857108,0.0002251148,0.0002346874,0.00106947,0.0008322163,0.000694234,0.0002242872,0.0002274269,0.001378933],"category_scores_gemma":[0.0004122134,0.0001520279,0.0001914576,0.00113447,0.0005367021,0.0002298597,0.000688758,0.0002620621,0.000285653],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0008142879,"about_ca_system_score_gemma":0.00044091,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.025497,"about_ca_topic_score_gemma":0.04632013,"domain_scores_codex":[0.9998972,0.000005337279,0.000006712629,0.00004489477,0.00002516407,0.00002068663],"domain_scores_gemma":[0.9997872,0.00001465624,0.00005087435,0.00001425666,0.0001037161,0.00002931164],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0005033243,0.00003533699,0.8633206,0.0003109016,0.0002696108,0.002042333,0.005343276,0.0005075599,0.08942353,0.001024384,0.001529387,0.03568973],"study_design_scores_gemma":[0.000002906225,0.000009230645,0.9950616,0.000013033,0.00001794418,0.0001541531,0.0003355278,0.00009864349,0.0006588138,0.00003831904,0.003606112,0.000003675583],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9934428,0.0008145777,0.0003463076,0.00007832545,0.00002194475,0.000007367547,0.0008469118,0.00003724568,0.004404549],"genre_scores_gemma":[0.9961373,0.0004942666,0.0006520898,0.0000698031,0.00001934088,0.000007857037,0.001670613,0.00002518495,0.000923552],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.025497,"threshold_uncertainty_score":0.05069721,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.0210264938635892,"score_gpt":0.2665802081557667,"score_spread":0.2455537142921775,"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."}}