{"id":"W4410999108","doi":"10.2138/gselements.21.3.177","title":"Serpentine Solid Solutions and Hydrogen Production on Early Earth and Mars","year":2025,"lang":"en","type":"article","venue":"Elements","topic":"Planetary Science and Exploration","field":"Physics and Astronomy","cited_by":12,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Calgary","funders":"","keywords":"Astrobiology; Mars Exploration Program; Earth (classical element); Hydrogen; Hydrogen production; Earth science; Environmental science; Geology; Chemistry; Physics; Astronomy; Organic 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":[0.00008309413,0.0002309947,0.0001367177,0.0009938296,0.0003415224,0.0005628507,0.000236693,0.000390055,0.001195209],"category_scores_gemma":[0.0002238746,0.000144179,0.0001081611,0.0004884914,0.0003723808,0.0003932881,0.0004317126,0.0001948997,0.0001772542],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.000400134,"about_ca_system_score_gemma":0.0001069254,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.004670938,"about_ca_topic_score_gemma":0.00702748,"domain_scores_codex":[0.9999354,0.000006950603,0.000004900038,0.00002491234,0.00001578868,0.00001208913],"domain_scores_gemma":[0.9998897,0.00001628587,0.00005194774,0.000005290202,0.00001904101,0.00001759686],"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":[0.001662161,0.000147653,0.4136291,0.0004477695,0.0002887241,0.001684612,0.001153376,0.00423771,0.5109161,0.0027866,0.0005510351,0.06249522],"study_design_scores_gemma":[0.00003139041,0.0003490925,0.8949123,0.00003207902,0.00006216943,0.0007720693,0.001238928,0.00350886,0.08777323,0.001486863,0.009799286,0.00003375816],"study_design_candidate":"observational","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9978245,0.0008473179,0.00007566004,0.00003576983,0.000002872823,0.000001767924,0.0001198196,0.00001122718,0.001081141],"genre_scores_gemma":[0.9992656,0.0002561107,0.000089287,0.000007924204,0.000002614277,8.030127e-7,0.00009669449,0.000002717041,0.0002782339],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.004670938,"threshold_uncertainty_score":0.009287536,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01247441049705135,"score_gpt":0.2378875054405828,"score_spread":0.2254130949435315,"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."}}