{"id":"W7162306611","doi":"10.3997/2214-4609.202533189","title":"Alkylotrophic Methanogenesis Forms Biogenic Methane with δ13C Values Comparable to Thermogenic Gas","year":2025,"lang":"","type":"article","venue":"","topic":"Methane Hydrates and Related Phenomena","field":"Environmental Science","cited_by":0,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Calgary","funders":"","keywords":"Methanogenesis; Methane; Carbon dioxide; Hydrogen sulfide; Oxygen","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":[0.0003098123,0.0004340504,0.0003135614,0.0004610858,0.0002277791,0.000448046,0.0002026132,0.0001673662,0.001210932],"category_scores_gemma":[0.0002787388,0.0001842069,0.0002456949,0.0006524869,0.0002341867,0.000294443,0.0005681225,0.000262505,0.0004914716],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0003257416,"about_ca_system_score_gemma":0.0004662681,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00141438,"about_ca_topic_score_gemma":0.0017574,"domain_scores_codex":[0.9997397,0.00003071752,0.0000241752,0.00006734162,0.00007730783,0.00006066572],"domain_scores_gemma":[0.9997658,0.00003336946,0.00005743624,0.00002439027,0.0000783974,0.00004053496],"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":[0.0003050454,0.00001886481,0.02385803,0.0002632601,0.0000429151,0.0001297353,0.00009536515,0.0003849294,0.9647992,0.0002137226,0.00008421164,0.009804763],"study_design_scores_gemma":[0.0000136518,0.0001916195,0.1315799,0.00006793459,0.00006540375,0.0003371039,0.0002910765,0.002229756,0.8568776,0.0006147804,0.007704362,0.00002680092],"study_design_candidate":"observational","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9845487,0.002218931,0.006531751,0.00005307767,0.00003018822,0.00004868456,0.002411796,0.0001085873,0.00404832],"genre_scores_gemma":[0.9874908,0.0009560775,0.007481354,0.00003569557,0.000009173258,0.00006378078,0.001842698,0.00003181856,0.002088543],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.00141438,"threshold_uncertainty_score":0.00405097,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01132962372841081,"score_gpt":0.2417183622902025,"score_spread":0.2303887385617917,"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."}}