{"id":"W2145815106","doi":"10.1073/pnas.0504878102","title":"The Paleoproterozoic snowball Earth: A climate disaster triggered by the evolution of oxygenic photosynthesis","year":2005,"lang":"en","type":"article","venue":"Proceedings of the National Academy of Sciences","topic":"Paleontology and Stratigraphy of Fossils","field":"Earth and Planetary Sciences","cited_by":566,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"","keywords":"Snowball Earth; Glacial period; Geology; Anoxic waters; Paleontology; Geologic record; Earth science; Ecology; Biology; Oceanography","routes":{"ca_aff":false,"ca_fund":false,"ca_venue":false,"about_ca":true,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02079868156186443,"score_gpt":0.2451389371239061,"score_spread":0.2243402555620417,"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."}}