. Adventures with animals and plants. Biology. Fig. 479 The Grand Canyofi of the Colorado. Ages ago these strata of sedimentary rock were laid doiim, then raised, forniiiig a plateau. Then the Colorado River grad- ually cut a channel through the rock. Thus fossils buried in very early rocks became exposed, (aeronautical chamber of commerce of America) Shale Gray sandstone Red I sandstone ;vi; Metamorphic rock. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perf
. Adventures with animals and plants. Biology. Fig. 479 The Grand Canyofi of the Colorado. Ages ago these strata of sedimentary rock were laid doiim, then raised, forniiiig a plateau. Then the Colorado River grad- ually cut a channel through the rock. Thus fossils buried in very early rocks became exposed, (aeronautical chamber of commerce of America) Shale Gray sandstone Red I sandstone ;vi; Metamorphic rock. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Kroeber, Elsbeth, 1882-; Wolff, Walter Harold, 1901-. Boston : D. C. Heath
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Keywords: ., bookcentury1900, bookpublisherbostondcheath, booksubjectbiology
