SILICA-CARBONATE ISOTOPIC TEMPERATURE CALIBRATION
SILICA-CARBONATE ISOTOPIC TEMPERATURE CALIBRATION
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DOI：
10.1126/science.258.5085.1162
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发表时间：
1992-11-13
期刊：
影响因子：
56.9
通讯作者：
CLAYTON, RN
中科院分区：
文献类型：
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作者：
CLAYTON, RN
............. 0-M.. M; ON. W4 V. - I Nol，”W”W“'，....不确定度为± 40 ℃。对于大多数海洋学和气候学目的来说，如此大的不确定性是不可接受的。Shemesh等人推导出了硅-碳酸盐同位素温度校准，温度系数为-0.26/mil/℃，相应的古温度不确定性仅为-0.26/mil/℃。60度。这是如何实现的？从A. Julillet-Leclerc和L. Labey-rie（7），Shemesh等人从18个数据点中选择了6个，这些数据点覆盖了温度范围的一小部分，并提取了与其他数据不兼容的二氧化硅-水温度系数。因此，他们的结论似乎是无效的。Robert N.克莱顿恩里科费米研究所，芝加哥大学，
............. 0-M.. M; ON... W4 V.-I Nol," W" W"',.......... uncertainty is±40C. For most oceano-graphic and climatological purposes, such a large uncertainty would be unacceptable. Shemesh et al. derived a silica-carbonate isotopic temperature calibration with a temperature coefficient of-0.26 per mil per degrees Celsius, with a corresponding paleotemperature uncertainty of only-+ 0.. 60C. How was this accomplished? From the data of A. Juillet-Leclerc and L. Labey-rie (7), Shemesh et al. selected 6 of the 18 data points spanning a small fraction of the temperature range and extracted a silica-water temperature coefficient that is incom-patible with other data. Thus their conclu-sions appear to be invalidated. Robert N. Clayton Enrico Fermii Institute, Unive~ rsity of Chicago,