Origin of sulfate in post-snowball-Earth oceans:river inputs vs.shelf-derived H_(2)S  

作　　者：Huiming Bao Yongbo Peng Xiaobin Cao 

机构地区：[1]International Center for Isotope Effects Research,Nanjing University,China [2]Frontiers Science Center for Critical Earth Material Cycling,State Key Laboratory for Mineral Deposits Research,School of Earth Sciences and Engineering,Nanjing University,China

出　　处：《National Science Review》2024年第11期33-34,共2页国家科学评论（英文版）

基　　金：supported by the National Natural Science Foundation of China(42173001 to Y.B.P.);the Fundamental Research Funds for the Central Universities(0206/14380918,0206/143802024,0206/14380150,0206/14380185 and 0206/14380174);the Nanjing University Start-up fund(to H.B.).

摘　　要：In the earliest Ediacaran,-635 mil-lion years ago,Marinoan glaciation swiftly ended.Subsequent seawater sul-fate recorded a period of pronounced mass-anomalous^(17)O depletion in atmo-spheric O 2—a signature that is likely indicative of an exceptionally high CO_(2)concentration at that time[1].The^(1)7 O anomaly or△′17 O value of atmospheric O_(2)could have reached approximately−30‰.

关 键 词：EARTH SHELF ANOMALY 

分 类 号：P541[天文地球—构造地质学]