{"id":"W2254578904","doi":"10.3285/eg.58.1.01","title":"A zero-exposure time test on an erratic boulder: evaluating the problem of pre-exposure in Surface Exposure Dating","year":2009,"lang":"en","type":"article","venue":"E&G Quaternary Science Journal","topic":"Geology and Paleoclimatology Research","field":"Earth and Planetary Sciences","cited_by":11,"is_retracted":false,"has_abstract":true,"ca_institutions":"Institute of Particle Physics","funders":"Paul Scherrer Institut; University of Bern; Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung; National Science Foundation","keywords":"Cosmogenic nuclide; Moraine; Glacier; Surface exposure dating; Nuclide; Geology; Physical geography; Sampling (signal processing); Holocene; River terraces; Geomorphology; Paleontology; Geography; Physics","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":[0.01206701,0.0004276942,0.000594165,0.0007536411,0.0005595511,0.0006602451,0.0009513348,0.001286006,0.002008284],"category_scores_gemma":[0.0315768,0.0001607045,0.0005643815,0.0009571412,0.001466599,0.0008326069,0.0009652909,0.0007130576,0.0003154134],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0003940099,"about_ca_system_score_gemma":0.0002923941,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0016255,"about_ca_topic_score_gemma":0.001590075,"domain_scores_codex":[0.98976,0.005807735,0.0006042079,0.001843965,0.001597387,0.0003867811],"domain_scores_gemma":[0.9034269,0.08450471,0.004107827,0.00303912,0.003978753,0.0009427317],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.006850608,0.0006890827,0.8610386,0.0002761665,0.0004868963,0.002098604,0.001183707,0.01094379,0.07097526,0.001227121,0.0004250464,0.04380518],"study_design_scores_gemma":[0.00008044494,0.01304153,0.8438016,0.00004510363,0.0003955121,0.003376589,0.00120488,0.03984825,0.09360376,0.001362762,0.003177067,0.00006252649],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9806636,0.0002193784,0.01714725,0.0000442899,0.00002984341,0.00003602268,0.0001357654,0.0000363601,0.001687497],"genre_scores_gemma":[0.9942986,0.0000245385,0.005052121,0.00003056975,0.000007619926,0.00002265641,0.0001923009,0.00002504389,0.0003465546],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.01206701,"threshold_uncertainty_score":0.0638172,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.03204868413964492,"score_gpt":0.3166775144768794,"score_spread":0.2846288303372345,"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."}}