{"id":"W3153003689","doi":"10.4138/atlgeol.2020.009","title":"Comparison of isotopic compositions of hydrocarbon gas in shallow groundwater and a deep oil and natural gas reservoir in southeastern New Brunswick, Canada","year":2020,"lang":"en","type":"article","venue":"Atlantic Geology","topic":"Hydrocarbon exploration and reservoir analysis","field":"Engineering","cited_by":4,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Ottawa; University of New Brunswick","funders":"Natural Resources Canada; Natural Sciences and Engineering Research Council of Canada; Dalhousie University; Iris O'Brien Foundation","keywords":"Abiogenic petroleum origin; Isotopes of carbon; δ13C; Geology; Hydrocarbon; Methane; Natural gas; Natural gas field; Geochemistry; Hopanoids; Stable isotope ratio; Environmental chemistry; Mineralogy; Source rock; Total organic carbon; Chemistry; Paleontology; Organic chemistry","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":true,"about_ca":true,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.00004704022,0.0001149848,0.0004191075,0.0001183821,0.00001286237,0.000005939801,0.00009427075,0.00007184107,0.00001506197],"category_scores_gemma":[0.00001727573,0.0001085796,0.00002496669,0.0002127131,0.00005900462,0.00004406251,0.00005149229,0.0001824426,9.460502e-7],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00001584131,"about_ca_system_score_gemma":0.00008318124,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.5712587,"about_ca_topic_score_gemma":0.9634867,"domain_scores_codex":[0.9991277,0.00005798741,0.0003749285,0.0001537336,0.0001009902,0.0001846894],"domain_scores_gemma":[0.9996979,0.00005462648,0.00004465888,0.0001022157,0.00001529204,0.00008534477],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"simulation_or_modeling","study_design_scores_codex":[0.00002896118,0.00002336675,0.9693105,0.0001749057,0.00005099688,0.00002365071,0.003507375,0.02448206,0.00200672,0.0001208324,0.00001646391,0.0002542233],"study_design_scores_gemma":[0.00100948,0.00007247423,0.1151953,0.00005353786,0.00003196891,0.00001103483,0.001101704,0.8817725,0.000401031,0.00009402919,0.0001023859,0.0001545941],"study_design_candidate":"observational","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9962808,0.0008795656,0.0001277505,0.002390632,0.00003994325,0.00004182971,3.132297e-7,0.00001320469,0.0002259542],"genre_scores_gemma":[0.9996462,0.0001157675,0.0000870306,0.00007109516,0.00001807304,0.000001791881,0.0000182358,0.000009224816,0.00003257193],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.8572904,"threshold_uncertainty_score":0.4427748,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01213588810805299,"score_gpt":0.222001945230675,"score_spread":0.209866057122622,"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."}}