... Metamorphic Strata of Eocene date in the Alps of Switzerland and Savoy. Limestone and Shale of Carrara. Metamorphic Strata of older date than the Silurian and Cambrian Rocks. Order of Succession in metamorphic Rocks. Uniformity of mineral Character. Supposed Azoic Period. Connection between the Absence of Organic Remains and the Scarcity of calcareous ... — The Student's Elements of Geology • Sir Charles Lyell
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