Neodymium isotopes from fossil fish teeth and detrital sediment, and oxygen i...

Ephemeral polar glaciations during the middle-to-late Eocene (48-34 Ma) have been proposed based on far-field ice volume proxy records and near-field glacigenic sediments,...研究人员基于远场冰量代用指标记录与近场冰成沉积物等证据，已提出在始新世中晚期（48~34 Ma）曾存在暂时性极地冰川作用……