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Towaco Formation : ウィキペディア英語版 | Towaco Formation
The Towaco Formation is a mapped bedrock unit in New Jersey. It is named for the unincorporated village of Towaco, which is near the place its type section was described by paleontologist Paul E. Olsen.〔 ==Description== The Towaco Formation is composed of reddish brown, reddish purple, gray, grayish-green, and white sandstone of varying grain thickness, as well as black siltstone and calcareous mudstone. Clasitc/conglomerate beds are known to exist, including a 1 meter (~3 feet) thick volcaniclastic bed in the upper portion of the formation.〔〔(Mineral Resources Online Spatial Data – Towaco Formation, New Jersey ). U.S. Geological Survey. Accessed July 23, 2010.〕
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