Browsing Geological Sciences by Author "Lewis, Don W."
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Cyclic Deposition of Neogene Phosphorites in the Aurora Area, North Carolina, and their Possible Relationship to Global Sea-Level Fluctuations
Riggs, Stanley R.; Lewis, Don W.; Scarborough, A. Kelly; Snyder, Scott W. (1982)The Neogene phosphorites in the Aurora Area occur within the Miocene Pungo River Formation (units A, B, C, and D) and the Pliocene Yorktown Formation (lower and upper units). These units are characterized by the following ... -
Synthesis of Phosphatic Sediment-Faunal Relationships Within the Pungo River Formation: Paleoenvironmental Implications
Snyder, Scott W.; Riggs, Stanley R.; Katrosh, Mark R.; Lewis, Don W.; Scarborough, A. Kelly (1982-12)The lower part of the Pungo River Formation in the Aurora Embayment (units A and B) consists of phosphorite sands and interbedded dolomites that grade southward into calcareous quartz sand (unit CC) associated with a ...