评论"在三叠纪早期温室期间致命的高温"
N Goudemand1, C Romano, A Brayard
1Palaeontological Institute and Museum, University of Zurich, Zurich, Switzerland. goudemand@pim.uzh.ch
Science (New York, N.Y.)
|March 2, 2013
概括
这项研究回顾了珀米亚到三叠纪中期的海水温度,发现修正后的数据不再支持以前关于"致命热"条件导致生物"日食"的说法. 这些发现挑战了已建立的古气候解释.
科学领域:
- 古气候学 古气候学
- 海洋生物学 海洋生物学
- 地质时间尺度 地质时间尺度
背景情况:
- 之前的研究由太阳等人. 这表明了高米-三叠纪海水温度和生物灭绝之间的相关性.
- 最初的研究提出了一个赤道.
研究的目的:
- 重新评估米到三叠纪中期赤道海水温度数据的时间定位和解释.
- 评估重建温度与拟议生物体之间的联系的有效性.
主要方法:
- 对现有的古气温数据点进行时间定位的校正.
- 重新分析温度趋势及其与生物事件的关系.
主要成果:
- 修正后的数据点不支持先前假定的温度趋势.
- "致命热"海水与生物"日食"之间的直接关系并未得到重新分析的数据的支持.
结论:
- 对赤道海洋生物的二叠纪-三叠纪热压力的原始解释没有得到纠正的数据的支持.
- 需要进一步的研究来了解米-三叠纪生物变化的驱动因素.
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