{"id":"W4406943700","doi":"10.1139/cjes-2024-0100","title":"Zircon U–Pb ages of the Chiapas Amber-Lagerstätte in the uppermost Simojovel Formation, southwest Mexico","year":2025,"lang":"en","type":"article","venue":"Canadian Journal of Earth Sciences","topic":"Geological and Geochemical Analysis","field":"Earth and Planetary Sciences","cited_by":6,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"","keywords":"Zircon; Geology; Geochronology; Geochemistry; Paleontology; Lagerstätte","routes":{"ca_aff":false,"ca_fund":false,"ca_venue":true,"about_ca":false,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0001545932,0.0002371464,0.0001583178,0.001796443,0.0005547579,0.0005097016,0.0002849797,0.0001804614,0.001720654],"category_scores_gemma":[0.0002206728,0.0001820032,0.0001074528,0.001123712,0.0002765898,0.000173425,0.0003854785,0.0001466898,0.0001872444],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0009085282,"about_ca_system_score_gemma":0.0004058398,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.1727973,"about_ca_topic_score_gemma":0.3919545,"domain_scores_codex":[0.9999368,0.000003546472,0.000004422218,0.0000293776,0.00001246659,0.00001331179],"domain_scores_gemma":[0.9998915,0.0000119157,0.00003837659,0.000007191209,0.00003485039,0.00001617544],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0001361654,0.00002027939,0.9723469,0.00003787035,0.00004927923,0.0001956779,0.0009342994,0.0003413548,0.007304078,0.0001360996,0.0004727629,0.0180253],"study_design_scores_gemma":[0.00000334312,0.000008517545,0.9982978,0.000004941669,0.00001117991,0.00003676393,0.0001316507,0.00007925764,0.000230596,0.000006552751,0.001187977,0.000001500803],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9963993,0.00027201,0.00006907722,0.00002386528,0.00000194474,0.000006968266,0.001233651,0.00001820884,0.001974995],"genre_scores_gemma":[0.9960029,0.0003057876,0.0003975649,0.00001496055,0.000006015188,0.00001476599,0.002176673,0.000006007162,0.001075353],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.1727973,"threshold_uncertainty_score":0.3435829,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01334563671868844,"score_gpt":0.1957852261123582,"score_spread":0.1824395893936697,"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."}}