Two samples near the base of section 72 were reported with a rounding error. This erratum corrects that mistake. Major-element data were determined on calcined sample powders, therefore the data reported reflect anhydrous totals. The loss-on-ignition (LOI) data are shown as a separate column and should not be included in the anhydrous totals.

中文翻译：

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美国密苏里州东南部圣弗朗索瓦山脉大不整合面下的寒武纪剖面的古地形控制风化

靠近第 72 部分底部的两个样本报告了四舍五入误差。这个勘误纠正了这个错误。主要元素数据是在煅烧样品粉末上确定的，因此报告的数据反映了无水总量。烧失量 (LOI) 数据显示为单独的列，不应包含在无水总量中。