作者: Sean E. McCauley , Donald J. DePaolo
DOI: 10.1007/978-1-4615-5935-1_19
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摘要: Oxygen isotope records of deep-sea paleotemperature indicate that the Cenozoic is a period dramatic climatic change. Deep-ocean temperatures were highest 55 million years ago, and have declined by 12 to 15°C present.1–2 The Earth’s climate appears changed as dramatically during past it has over any similar in last 500 years.