Ages and stable isotope ratios from speleothem calcite from Cold Water Cave, ...
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High-precision uranium-thorium mass spectrometric chronology and 18O-13C isotopic analysis of speleothem calcite from Cold Water Cave in northeast Iowa have been used to chart...
针对美国艾奥瓦州东北部冷水洞（Cold Water Cave）内的洞穴方解石所开展的高精度铀-钍质谱年代学与氧18-碳13同位素分析工作，已被用于描绘……
