Science. 1992 May 15;256(5059):1000-3. doi: 10.1126/science.256.5059.1000.
A paleotemperature record based on measurements of atmospheric noble gases dissolved in ground water of the Carrizo aquifer (Texas) shows that the annual mean temperature in the southwestern United States during the last glacial maximum was about 5 degrees C lower than the present-day value. In combination with evidence for fluctuations in mountain snow lines, this cooling indicates that the glacial lapse rate was approximately the same as it is today. In contrast, measurements on deep-sea sediments indicate that surface temperatures in the ocean basins adjacent to our study area decreased by only about 2 degrees C. This difference between continental and oceanic records poses questions concerning our current understanding of paleoclimate and climate-controlling processes.
基于溶解在卡丽索含水层（德克萨斯州）地下水中的大气稀有气体测量得到的古温度记录表明，在上一个冰河时代末期，美国西南部的年平均温度比现在低约 5 摄氏度。结合山地雪线波动的证据，这种降温表明，冰川的斜度与今天大致相同。相比之下，对深海沉积物的测量表明，我们研究区域附近的海洋盆地表面温度仅下降了约 2 摄氏度。这种大陆和海洋记录之间的差异，对我们当前对古气候和气候控制过程的理解提出了疑问。
