{"id":"W1976616582","doi":"10.1016/s0375-6742(00)00047-9","title":"Potassium enrichment in shale—fluid transport or provenance?","year":2000,"lang":"en","type":"article","venue":"Journal of Geochemical Exploration","topic":"Groundwater and Isotope Geochemistry","field":"Earth and Planetary Sciences","cited_by":8,"is_retracted":false,"has_abstract":false,"ca_institutions":"University of Calgary","funders":"","keywords":"Potassium; Geology; Oil shale; Sedimentary depositional environment; Geochemistry; Provenance; Feldspar; Mineralogy; Composition (language); Clastic rock; Metasomatism; Chemistry; Sedimentary rock; Structural basin; Geomorphology; Paleontology","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":"codex-gemma-dda1882f352a","candidate_categories":["insufficient_payload"],"consensus_categories":[],"category_scores_codex":[0.000245167,0.0001080347,0.0001941694,0.00005101437,0.00003070517,0.00002700094,0.0001542355,0.00007817883,0.00474144],"category_scores_gemma":[0.00002106947,0.00007447821,0.00006810797,0.0001770538,0.00002977695,0.0006587171,0.000001894477,0.0002011437,0.00006207658],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00001499968,"about_ca_system_score_gemma":0.00008198384,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0000858531,"about_ca_topic_score_gemma":0.00008818005,"domain_scores_codex":[0.9988596,0.00002430337,0.0004876509,0.0001294805,0.0002958926,0.0002030047],"domain_scores_gemma":[0.9996113,0.00002716301,0.0001102074,0.00009049305,0.00005384675,0.0001070569],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.005536465,0.0008563471,0.5520986,0.0002424139,0.00008752893,0.00107372,0.004518077,0.009204127,0.09268885,0.00002378181,0.00635601,0.327314],"study_design_scores_gemma":[0.008606267,0.002711539,0.5915357,0.0007275376,0.000144996,0.001430806,0.001913422,0.009990479,0.2791557,0.01309112,0.08908358,0.001608843],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.994588,0.0001871208,0.0001051197,0.0006535404,0.0001087408,0.00008330373,0.000009989032,0.000007791551,0.004256371],"genre_scores_gemma":[0.9983392,0.0002400685,0.0004417538,0.0001288456,0.000222725,0.000001237085,0.00006993036,0.000002444508,0.0005538159],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.3257052,"threshold_uncertainty_score":0.9961684,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01538183849701634,"score_gpt":0.2151232024362622,"score_spread":0.1997413639392458,"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."}}