{"id":"W4296848732","doi":"10.3390/min12101188","title":"Unconventional Gas Geochemistry—An Emerging Concept after 20 Years of Shale Gas Development?","year":2022,"lang":"en","type":"article","venue":"Minerals","topic":"Hydrocarbon exploration and reservoir analysis","field":"Engineering","cited_by":4,"is_retracted":false,"has_abstract":true,"ca_institutions":"Geological Survey of Canada; Natural Resources Canada","funders":"Natural Resources Canada","keywords":"Kerogen; Natural gas; Oil shale; Isotopes of carbon; Shale gas; Source rock; Geochemistry; Cracking; Stable isotope ratio; Geology; Chemistry; Environmental chemistry; Paleontology; Total organic carbon","routes":{"ca_aff":true,"ca_fund":true,"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":[0.00438499,0.000313165,0.0006665946,0.0009397889,0.001038201,0.003545668,0.001038106,0.001752544,0.001420451],"category_scores_gemma":[0.002454089,0.0001706956,0.0002189056,0.001236534,0.01109639,0.01102669,0.002358885,0.002203693,0.0001722894],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.002578962,"about_ca_system_score_gemma":0.002635678,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001943281,"about_ca_topic_score_gemma":0.00296606,"domain_scores_codex":[0.9992123,0.0002028529,0.00003924369,0.0002323756,0.00018324,0.000130135],"domain_scores_gemma":[0.9977412,0.0008053159,0.0003155117,0.0002576109,0.000571277,0.0003090691],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"theoretical_or_conceptual","study_design_gemma":"observational","study_design_scores_codex":[0.0004529786,0.0001258885,0.02764025,0.0010383,0.00008813632,0.0009105196,0.009615198,0.001311328,0.01875621,0.5293809,0.005426195,0.405254],"study_design_scores_gemma":[0.00002532029,0.0007323885,0.03483691,0.001127588,0.00006739429,0.001857174,0.01680746,0.005114339,0.0128944,0.5274883,0.3988796,0.00016924],"study_design_candidate":"observational","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.4804753,0.3295469,0.03621102,0.123904,0.00219102,0.00005169441,0.0003271164,0.0002071597,0.02708576],"genre_scores_gemma":[0.8961641,0.08291572,0.008482832,0.005755599,0.0008979798,0.00003156048,0.0001185792,0.00004203682,0.005591682],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.00438499,"threshold_uncertainty_score":0.02319032,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01293987293921907,"score_gpt":0.2293573526009708,"score_spread":0.2164174796617517,"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."}}