Samples are numbered in the order in which they were collected. Units under consideration for future sampling include Boone (lower & Upper to illustrate chert habits), Morrowan limestone (Prairie Grove or Kessler), Upper Atoka (optional). Strat columns are from AR Geological Survey. Credit: Mac Mcgilvery
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03 Paleo Midway LS AGS
Photo Lidar Scan ERA: Cenozoic Period: Tertiary Epoch: Paleocene ( wiki , alpha ) Age: 66-56 million years ago Formation: Midway Group Litho...

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Photo Lidar Scan ERA: Cenozoic Period: Tertiary Epoch: Paleocene ( wiki , alpha ) Age: 66-56 million years ago Formation: Midway Group Litho...
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Photo Lidar Scan ERA: Paleozoic Period: Ordovician ( wiki , alpha ) Epoch: Early Age: 485-470 million years ago Formation: Crystal Mounta...
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Photo Lidar Scan ERA: Mesozoic Period: Cretaceous ( wiki , alpha ) Epoch: Upper Cretaceous (Cenomanian) Formation: Unnamed igneous intrusi...