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锟斤拷学锟揭筹拷锟饺达拷锟斤拷锟斤拷通锟斤拷锟斤拷锟竭达拷锟斤拷锟教猴拷锟斤拷锟斤拷锟斤拷锟斤拷锟街诧拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷芑锟斤拷锟斤拷锟斤拷全锟斤拷锟脚拷锟斤拷锟叫╋拷锟斤拷锟斤拷谩锟�
锟叫癸拷台锟斤拷锟揭伙拷锟斤拷锟斤拷台锟斤拷锟斤拷锟斤拷溪锟斤拷锟叫撅拷锟斤拷锟斤拷锟斤拷2004锟斤拷锟教拷锟�“锟窖癸拷英”锟斤拷锟斤拷锟斤拷锟侥猴拷水锟斤拷锟斤拷锟剿匡拷学锟斤拷锟斤拷锟斤拷锟叫撅拷锟侥达拷锟斤拷锟斤拷锟斤拷叶锟斤拷枝锟斤拷锟斤拷锟斤拷锟斤拷锟皆硷拷锟斤拷锟斤拷锟斤拷0.05%锟斤拷碳锟斤拷锟斤拷些碳锟斤拷锟斤拷台锟斤拷锟饺ワ拷撕锟斤拷住锟�
锟斤拷锟斤拷锟节★拷锟斤拷然—锟斤拷锟斤拷锟窖э拷锟斤拷锟�Nature Geoscience锟斤拷锟节匡拷锟较碉拷一锟斤拷锟叫撅拷锟斤拷锟街ｏ拷“锟饺达拷锟斤拷锟斤拷锟节斤拷锟斤拷锟斤拷锟叫的讹拷锟斤拷锟斤拷碳转锟斤拷为锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷詈ｏ拷械某锟斤拷锟斤拷锟侥癸拷锟斤拷锟叫凤拷锟斤拷锟斤拷锟斤拷要锟斤拷锟斤拷锟矫★拷”植锟斤拷锟斤拷锟秸讹拷锟斤拷锟斤拷碳锟斤拷燃锟秸匡拷石燃锟斤拷锟酵放筹拷锟斤拷锟斤拷锟斤拷锟藉，锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟侥癸拷锟斤拷锟叫斤拷锟斤拷些锟斤拷碳元锟截碉拷锟斤拷式锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷通锟斤拷锟斤拷植锟斤腐锟矫伙拷燃锟斤拷时锟斤拷碳锟劫次憋拷锟酵放碉拷锟斤拷锟斤拷锟叫★拷
锟斤拷锟斤拷英锟斤拷锟斤拷锟叫癸拷台锟斤拷锟窖э拷业锟斤拷芯锟斤拷锟斤拷锟斤拷锟教斤拷锟斤拷锟斤拷锟斤拷每锟斤拷通锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷5000~9000锟斤拷值锟教硷拷痈玫锟斤拷锟斤拷牡锟斤拷锟斤拷锟斤拷牒ｏ拷锟�
然锟斤拷锟斤拷学锟斤拷锟斤拷也说锟斤拷锟斤拷一锟斤拷锟斤拷锟睫凤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷燃锟秸匡拷石燃锟斤拷锟斤拷锟斤拷锟斤拷锟饺拷锟斤拷暖锟斤拷
锟斤拷锟皆斤拷锟脚达拷学锟斤拷锟睫诧拷锟斤拷·希锟斤拷锟斤拷说锟斤拷“锟斤拷锟斤拷锟斤拷锟斤拷疃拷锟斤拷锟斤拷碌锟教佳拷锟斤拷锟斤拷妫拷锟斤拷锟斤拷芯锟斤拷锟斤拷鄄锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷谩锟饺伙拷锟斤拷锟饺达拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷约锟斤拷姆锟绞斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟教硷拷锟�”锟斤拷学锟斤拷锟角伙拷说锟斤拷锟斤拷锟斤拷一锟斤拷锟教荚拷夭锟斤拷锟斤拷锟皆达拷锟斤拷执锟街诧拷锟斤拷锟斤拷锟斤拷锟斤拷锟皆达拷诒锟斤拷锟剿拷锟剿筹拷锟斤拷锟斤拷碌幕锟绞拷锟�
希锟斤拷锟斤拷说台锟斤拷锟斤拷锟斤拷锟斤拷芯锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟届锟皆硷拷锟秸憋拷群锟斤拷锟斤拷影锟届极为锟斤拷锟狡★拷
锟斤拷锟较癸拷锟斤拷锟斤拷委员锟斤拷去锟斤拷锟斤拷预锟皆ｏ拷全锟斤拷锟脚拷锟斤拷芑锟斤拷锟斤拷却锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟矫革拷为强锟斤拷同时也锟斤拷锟斤拷馗锟斤拷隆锟斤拷珊锟斤拷锟斤拷锟斤拷缘锟斤拷趾锟斤拷姆锟斤拷锟斤拷约锟斤拷锟缴猴拷平锟斤拷锟斤拷锟斤拷锟斤拷锟�
希锟斤拷锟斤拷说锟斤拷锟斤拷锟斤拷锟斤拷锟教荚拷乇锟斤拷锟斤拷牒ｏ拷椎锟斤拷芯锟斤拷锟斤拷劭锟斤拷芑锟斤拷锟轿拷锟斤拷锟揭伙拷惚╋拷锟斤拷锟侥革拷锟斤拷锟斤拷锟矫ｏ拷然锟斤拷锟斤拷锟斤拷强锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟狡伙拷锟斤拷锟斤拷锟矫ｏ拷锟斤拷锟斤拷叽锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟叫才╋拷锟饺★拷锟斤拷锟斤拷源锟斤拷锟叫癸拷锟斤拷锟斤拷 锟斤拷锟揭ｏ拷
锟斤拷锟斤拷锟斤拷然—锟斤拷锟斤拷锟窖э拷锟斤拷锟�
Nature Geoscience锟斤拷锟斤拷doi:10.1038/ngeo333锟斤拷Robert G. Hilton锟斤拷Hongey Chen锟斤拷
