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The Martinsburg Formation (Middle and Upper Ordovician) in the Delaware Valley, Pennsylvania - New Jersey
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The Martinsburg Formation (Middle and Upper Ordovician) in the Delaware Valley, Pennsylvania - New Jersey. Retrieved from https://doi.org/doi:10.7282/T3HH6JMW

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TitleThe Martinsburg Formation (Middle and Upper Ordovician) in the Delaware Valley, Pennsylvania - New Jersey
PublisherU.S. Department of the Interior, U.S. Geological Survey (USGS)
NameDrake, Avery Ala : Epstein, Jack B.
Date Created1967
Subjectgeology, geography, land, stratigraphy, clastic rocks, Ordovician, Martinsburg Formation, slate, Delaware Valley, Bushkill, Ramseyburg, Pen Argyl, New Jersey, Pennsylvania
Extent20 p., map, ill., photos
DescriptionThis document discusses the stratigraphy of clastic rocks of Middle and Late Ordovician age in western New Jersey and eastern Pennsylvania. Detailed mapping of ten 7th-minute quadrangles in eastern Pennsylvania and western New Jersey has shown that the Martinsburg Formation of Middle and Late Ordovician age can be divided into three members: a lower thin-bedded slate, a middle graywacke-bearing unit, and an upper thick-bedded slate. These units are herein named the Bushkill, Ramseyburg, and Pen Argyl Members, respectively. The Pen Argyl Member is buried east of the Delaware River and west of Kempton, Pa., near the Schuylkill River because of unconformable overlap by the superjacent Shawangunk Conglomerate of Silurian age. Commercial slate is presently quarried only in the Pen Argyl Member and the upper part of the Ramseyburg Member.
NoteContributions to Stratigraphy, Geological Survey Bulletin 1244-H. Prepared in cooperation with the Pennsylvania Geological Survey.
NotePurpose: A report on the Martinsburg Formation in the Delaware Valley, Pennsylvania - New Jersey.
Persistent URLhttps://doi.org/doi:10.7282/T3HH6JMW
Data Life Cycle Event(s)
   Type: Cataloging
   Date: 2008-09-05 00:00:00.0
   Creator: Karen Hanson
CollectionNJEDL2
Organization NameNew Jersey Environmental Digital Library
RightsThis resource may be copyright protected. You may make use of this resource, with proper attribution, for educational and other non-commercial uses only. Contact the contributing organization to obtain permission for reproduction, publication, and commercial use.
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