Science. 1970 Jun 26;168(3939):1570-2. doi: 10.1126/science.168.3939.1570.
Oxygen- and hydrogen-isotope analyses from the core hole through the Antarctic Ice Sheet at Byrd Station define temperature variations over more than 75,000 years. Synchronism between major climatic changes in Antarctica and the Northern Hemisphere is strongly indicated. The Wisconsin cold interval extended from 75,000 to 11,000 years ago. Three intra-Wisconsin warmer phases were all colder than pre- or post-Wisconsin times, which suggests that North American and Eurasian continental ice sheets did not disappear at any time during the Wisconsin.
通过南极冰盖比尔德站核心孔的氧和氢同位素分析，可定义超过 75000 年的温度变化。南极和北半球主要气候变化之间的同步性得到了强烈的指示。威斯康星寒冷期从 75000 年前延伸到 11000 年前。三个威斯康星内部较暖阶段都比威斯康星之前或之后的时期更冷，这表明在威斯康星期间，北美和欧亚大陆的冰盖没有在任何时候消失。
