The Grand Canyon: The Top Two Rock Layers | PBS LearningMedia
The Grand Canyon: The Top Two Rock Layers | PBS LearningMedia
As you look at the sedimentary rocks at the Grand Canyon's rim, the top layers of visible rock are the youngest. In this video segment adapted from NOVA, a scientist explains what we know about the changing conditions in this location and the kinds of life they supported. The canyon's top layer, the Kaibab formation, records deposits laid down ...
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SOLVED: Question 1How do exposed layers of sedimentary rock in the Grand Canyonreveal clues about the geologic time scale?a.The oldest fossils are found near the surface, while the mostrecent fossils are found at deeper layers.b.Radiometric dating using 14C of fossils in eachlayer can accurately predict their age up to 1 millionyears ago.c.The chemical composition of each layer indicates the conditionson Earth when the layer was deposited.d.Fossils of soft-bodied animals are prevalent in sedimen
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