10_Fossils - Instruction: View full-screen images in the...

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Instruction: View full-screen images in the Slide Show mode of display. Read the explanatory notes in the Normal View mode of display.
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EARLIEST ANIMALS Ediacara fossils (latest Precambrian) Burgess Shale fossils (middle Cambrian) EARTH’S EARLIEST ATMOSPHERE READ Chap. 13. Next lecture: finish the chapter. READING THE STRATA Earlier, now discredited ideas Laws (or principles) of stratigraphy superposition (law) original horizontality (principle)
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EARLIEST ANIMALS Ediacara fossils (latest Precambrian) Burgess Shale fossils (middle Cambrian) EARTH’S EARLIEST ATMOSPHERE READING THE STRATA Earlier, now discredited ideas Laws (or principles) of stratigraphy superposition (law) original horizontality (principle)
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Photosynthesis: H 2 O + CO 2 organic molecules (food) + O 2 (enters the atmosphere) C
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Fe +2 (ferrous): green ion, soluble in H 2 O. Fe +3 (ferric): red ion, in soluble in H 2 O. If dissolved oxygen is present, an insoluble
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10_Fossils - Instruction: View full-screen images in the...

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