Social Studies, 06.11.2019 00:31 Bassoonist
Asandstone is found to overlie a shale. the shale contains a volcanic ash layer that has been radiometrically dated to 84 million years ago. both the shale and the sandstone are cut by a pluton of gabbro that has been dated to 60 million years old. how old is the sandstone layer?
Answers: 3
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1. describe at least 3 similarities or differences between homo habilis and australopithecus 2. describe at least 3 similarities or differences between cro-magnon and neanderthals.
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Asandstone is found to overlie a shale. the shale contains a volcanic ash layer that has been radiom...
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