Middle Eocene to late Oligocene calcareous nannofossils of ODP Hole 120-748B
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A major deterioration in global climate occurred through the Eocene-Oligocene time interval, characterized by long-term cooling in both terrestrial and marine environments....
贯穿始新世-渐新世（Eocene-Oligocene）时期，全球气候发生了重大恶化，该时期以陆地与海洋环境均出现长期降温为典型特征……
